WORLDBASE Player / Joueur IM Koellner, Ruben Gideon
GameID: 0
1109 games / 1109 parties
2025.06.24 Titled Tue 24th Jun Late
39727 Hartge, Gedeon (2328) Koellner, Ruben Gideon (2503) 0-1
1. e4 d6 2. d4 Nf6 3. f3 e5 4. Ne2 Nc6 5. Be3 d5 6. Nbc3 dxe4 7. Nxe4 Nxe4 8. fxe4 exd4 9. Bxd4 Bg4 10. Bf2 Qf6 11. c3 Bd6 12. h3 Bh5 13. Qb3 O-O 14. Ng3 Bg6 15. Be2 Qe6 16. Qxe6 fxe6 17. O-O Ne5 18. Rad1 a6 19. a4 h6 20. Bd4 Rxf1+ 21. Rxf1 Rf8 22. Rxf8+ Kxf8 23. Kf2 Nc6 24. Bf3 Nxd4 25. cxd4 Bf4 26. Ne2 Bd2 27. Nc3 Bc1 28. b3 Bb2 29. Ne2 e5 30. d5 Be8 31. Ke3 b5 32. axb5 Bxb5 33. Ng3 g6 34. Be2 Bd4+ 35. Kf3 Ke7 36. Bxb5 axb5 37. Ne2 Kd6 38. b4 Bb6 39. Kg3 Be3 40. Kf3 Bd2 41. h4 Bxb4 42. h5 gxh5 43. Ng3 Bd2 44. Nxh5 Bg5 45. Ng7 b4 46. Nf5+ Kc5 47. Ke2 c6 48. Kd3 cxd5 49. exd5 Kxd5 50. Ng3 b3 51. Ne4 b2 52. Nc3+ Ke6 53. Nb1 Kf5 54. Ke2 Kg4 55. Kf2 Bc1 56. Nc3 Kf4 57. Nb1 Ke4 58. Ke2 Kd4 59. Kd1 Kd3 60. Na3 e4 61. Nb1 e3 62. Ke1 Bd2+ 63. Kd1 e2# 0-1
2025.06.24 Titled Tue 24th Jun Late
39899 Koellner, Ruben Gideon (2503) Gubajdullin, A (2233) 1-0
1. Nf3 Nf6 2. d4 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O Nc6 7. c3 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. a4 a5 11. Qe2 b6 12. b3 Bb7 13. Rd1 Nd7 14. Nf3 Qe7 15. Ba3 Nc5 16. Qe3 h6 17. Bxc5 bxc5 18. Bd5 c6 19. Bc4 Rfd8 20. Ne1 Rxd1 21. Rxd1 Bf8 22. Qd3 Bc8 23. Qd8 Kg7 24. g3 Qxd8 25. Rxd8 Be7 26. Re8 Bf6 27. Nd3 Bb7 28. Rxa8 Bxa8 29. Nxc5 Be7 30. Nd7 Bd6 31. Ba6 c5 32. f3 f5 33. Nb6 Bc6 34. Bb5 Bb7 35. Bd3 g5 36. Kf2 g4 37. fxg4 fxe4 38. Bc4 Bc7 39. Nd5 Bxd5 40. Bxd5 Bd8 41. Bxe4 Bg5 42. Ke2 Kf6 43. Kd3 Bc1 44. Kc4 Bd2 45. Kd3 Be1 46. Bf5 Kg7 47. b4 cxb4 48. c4 Bf2 49. Ke4 Kf6 50. Kd5 h5 51. c5 b3 52. c6 Bb6 53. Be4 hxg4 54. Kd6 b2 55. c7 Bxc7+ 56. Kxc7 Ke6 57. Kc6 1-0
2025.06.24 Titled Tue 24th Jun Late
40011 Graif, William (2211) Koellner, Ruben Gideon (2503) 1-0
1. e4 d6 2. Nc3 Nf6 3. f4 e5 4. Nf3 exf4 5. d3 Nh5 6. Nd5 g5 7. Nxg5 Qxg5 8. Qxh5 Qd8 9. Bxf4 Rg8 10. e5 Nd7 11. e6 Rg6 12. exd7+ Bxd7 13. O-O-O c6 14. Nc3 Qe7 15. Be2 O-O-O 16. Bf3 Qf6 17. Bd2 d5 18. Rhe1 Bd6 19. Kb1 1-0
2025.06.17 Titled Tue 17th Jun Late
46637 Koellner, Ruben Gideon (2503) Fathy, E (2300) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. c4 c6 7. Nc3 Nbd7 8. Bd3 Bd6 9. O-O O-O 10. e4 dxc4 11. Bxc4 e5 12. d5 Nb6 13. Bb3 cxd5 14. exd5 h6 15. Be3 Re8 16. Rad1 e4 17. Qe2 Qe7 18. Rfe1 Qe5 19. g3 Qf5 20. Kg2 Nbd7 21. Ba4 Re7 22. Nb5 Bb4 23. Nd4 Qe5 24. Bf4 Qh5 25. d6 Bxe1 26. Qxh5 Nxh5 27. dxe7 Nxf4+ 28. gxf4 Bb4 29. Nf5 1-0
2025.06.17 Titled Tue 17th Jun Late
46966 Rao, Anjaneya Sripathy (2217) Koellner, Ruben Gideon (2503) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. f3 Bd6 9. Be3 Ke7 10. O-O-O a6 11. Nge2 Nbd7 12. Kb1 b5 13. Nc1 c5 14. Nb3 c4 15. Na5 Rhc8 16. a3 b4 17. Nb7 bxc3 18. Nxd6 Rc6 19. Nb7 Rb8 20. Na5 Rxb2+ 21. Ka1 Rc7 22. Rb1 Rxc2 23. Rhc1 Rxg2 24. Rxc3 Rxh2 25. Rxc4 Rxc4 26. Nxc4 Rh3 27. Rb7 Rxf3 28. Bc5+ Kd8 29. Bd6 Nxe4 30. Bxe5 Nec5 31. Ra7 Nxe5 32. Nxe5 Rxa3+ 33. Kb2 Rg3 34. Nf7+ Kc8 35. Nd6+ Kb8 36. Re7 h5 37. Ne8 h4 38. Nxg7 h3 39. Nxe6 Re3 40. Rh7 Nxe6 41. Rh8+ Kc7 42. Kc2 Kd6 43. Kd2 Ra3 44. Rh6 h2 45. Kc2 Ra2+ 46. Kb3 Rg2 47. Kc4 Ke5 48. Rh5+ Ke4 49. Kb4 Nf4 50. Ka5 Nxh5 0-1
2025.06.17 Titled Tue 17th Jun Late
47159 Pranav, V (2595) Koellner, Ruben Gideon (2503) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Be2 Be7 6. O-O c6 7. Re1 h6 8. Bf1 Qc7 9. a4 Nf8 10. b3 Ng6 11. Ba3 O-O 12. Qd2 a6 13. h3 Rb8 14. a5 Re8 15. Na4 Bf8 16. Nb6 Be6 17. c4 c5 18. d5 Bc8 19. b4 cxb4 20. Bxb4 Nd7 21. Qe3 Nxb6 22. axb6 Qd7 23. Rec1 f5 24. exf5 Qxf5 25. c5 dxc5 26. Bxc5 e4 27. Nd4 Qe5 28. Bxf8 Rxf8 29. Rc7 Nf4 30. Ra5 Qd6 31. Qxe4 Qxb6 32. Rac5 Qg6 33. Qxg6 Nxg6 34. d6 b6 35. Rc3 Bb7 36. Rg3 Rf6 37. Bd3 Rxd6 38. Nf5 Rxd3 39. Rxg7+ Kh8 40. R3xg6 Rxh3 41. gxh3 Rd8 42. Rxh6# 1-0
2025.06.17 Titled Tue 17th Jun Late
47397 Koellner, Ruben Gideon (2503) Oksendal, Martin (2235) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 g6 4. Nbd2 Bg7 5. b4 O-O 6. c4 a5 7. b5 c5 8. dxc5 Ne4 9. Nxe4 dxe4 10. Nd4 Qc7 11. Ba3 Nd7 12. c6 bxc6 13. Rc1 Ne5 14. bxc6 Nxc6 15. Nxc6 Qxc6 16. Bxe7 Re8 17. Qd6 Qa4 18. Bf6 Ra6 19. Qd1 Qxd1+ 20. Rxd1 Bxf6 21. Be2 Be6 22. O-O Rc8 23. Rc1 Rac6 24. Rfd1 Bxc4 25. Bg4 Be6 26. Rxc6 Rxc6 27. Bxe6 Rxe6 28. Rd5 Ra6 29. g3 a4 30. Rc5 a3 31. Rc4 Rb6 32. Ra4 Be7 33. Rxe4 Bf8 34. Ra4 Rb2 35. h4 Rxa2 36. Kg2 h5 37. Kf3 Be7 38. Kg2 Rc2 39. Kf3 a2 40. Ra8+ Kg7 41. Ra7 Bf6 42. Kg2 a1=Q 43. Rb7 Qb2 44. Rxb2 Rxb2 45. Kf3 Bc3 46. Kg2 Be1 47. Kf1 Bxf2 48. e4 Bxg3 49. e5 Bxh4 50. e6 Be7 0-1
2025.06.15 Zupanja Celebrates GM2
53494 Sedlak, N (2432) Koellner, Ruben Gideon (2503) 1/2-1/2
1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. e3 Be7 5. b3 O-O 6. Bb2 c5 7. cxd5 exd5 8. d4 Nc6 9. Be2 Bg4 10. O-O Bxf3 11. Bxf3 cxd4 12. exd4 Bb4 13. Na4 Rc8 14. a3 Bd6 15. Qd3 Re8 16. Rfe1 Rb8 1/2-1/2
2025.06.14 Zupanja Celebrates GM2
53483 Panic, Ne (2311) Koellner, Ruben Gideon (2503) 1/2-1/2
1. Nf3 Nf6 2. c4 e6 3. b3 d5 4. Bb2 c5 5. e3 Nc6 6. cxd5 exd5 7. d3 Be7 8. Be2 O-O 9. O-O d4 10. exd4 cxd4 11. Nbd2 Bf5 12. Re1 Rc8 13. a3 a5 14. Bf1 Bc5 15. Rc1 Ba7 16. Ne5 Be6 17. Nxc6 bxc6 18. b4 Nd5 19. Qa4 Bb6 20. Rxc6 Nc3 21. Rxc8 Qxc8 22. Bxc3 Qxc3 23. Nf3 axb4 24. axb4 h6 25. Qb5 Rb8 26. Qe5 Rd8 27. Qb5 Bc7 28. Qa4 Rb8 29. b5 Qc5 30. Qxd4 Qxb5 31. Qe3 Bb6 32. Qe5 Qxe5 33. Rxe5 Bc7 34. Re1 Rb2 35. Re2 Rb1 36. Re1 Rb2 37. Re2 Rb4 38. Re4 Rb5 39. Re1 Ba5 40. Ra1 Bb4 41. Be2 Rb8 42. Rb1 Ba2 43. Ra1 1/2-1/2
2025.06.14 Zupanja Celebrates GM2
53490 Koellner, Ruben Gideon (2503) Kosic, D (2382) 1-0
1. d4 Nf6 2. Nf3 b6 3. Nbd2 Bb7 4. e3 c5 5. Bd3 e6 6. c3 Nc6 7. O-O Be7 8. a3 d5 9. Ne5 O-O 10. f4 g6 11. Qf3 Bd6 12. g4 Ne7 13. g5 Bxe5 14. fxe5 Ne4 15. Nxe4 dxe4 16. Bxe4 Bxe4 17. Qxe4 Nf5 18. Qg2 cxd4 19. exd4 b5 20. Bf4 a5 21. Rad1 Qd5 22. Qxd5 exd5 23. Bd2 Rfe8 24. Kf2 Kf8 25. Ke2 Ke7 26. Kd3 a4 27. Rb1 Kd7 28. Rf2 Ke6 29. Rbf1 Rac8 30. Ke2 Rc6 31. Rf3 Rh8 32. Rh3 Ke7 33. Rhf3 Ke6 34. Rf4 Ra8 35. Kf3 Rg8 36. Kg4 h5+ 37. gxh6 Nxh6+ 38. Kh3 Nf5 39. Kg2 Rh8 40. Rg4 Rh5 41. Rf2 Rc8 42. Bg5 Rch8 43. h4 Rc8 44. Rf3 Rch8 45. Rgf4 R8h7 46. Bf6 Nh6 47. Bg5 Nf5 48. Rf2 Rh8 49. Bf6 Rc8 50. R2f3 Nh6 51. Kh3 Nf5 52. Bg5 Rch8 53. Kg2 Rc8 54. Kf2 Rch8 55. Ke2 Rxg5 56. hxg5 Rh1 57. Kd3 Rg1 58. Rh3 Rg2 59. Rh8 Rxb2 60. Rb8 Rb3 61. Rf3 Rxa3 62. Rb6+ Ke7 63. Rxb5 Ke6 64. Rb6+ Ke7 65. Rf1 Ra2 66. Rb7+ Kf8 67. Rh1 1-0
2025.06.13 Zupanja Celebrates GM2
53481 Koellner, Ruben Gideon (2503) Harikrishnan, A (2467) 1-0
1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nf3 c5 5. c3 Nc6 6. Nbd2 cxd4 7. exd4 Nh5 8. Be3 Bd6 9. Bd3 Nf4 10. Bxf4 Bxf4 11. g3 Bh6 12. h4 g6 13. h5 Bd7 14. Kf1 a5 15. Kg2 b6 16. Qe2 Qe7 17. hxg6 hxg6 18. Ne5 O-O-O 19. Ndf3 Bg7 20. b4 a4 21. Nxd7 Qxd7 22. Bb5 a3 23. c4 Kb7 24. c5 Qc7 25. Bxc6+ Qxc6 26. b5 Qc7 27. Rhc1 Rc8 28. c6+ Kb8 29. Rc3 Qd6 30. Qe3 e5 31. dxe5 d4 32. Nxd4 Qxe5 33. Qxe5+ Bxe5 34. Rd1 Rh5 35. Rxa3 Bxd4 36. Rxd4 Rxb5 37. Rd7 Rxc6 38. Rxf7 Rc7 39. Rf6 g5 40. Rb3 Rxb3 41. axb3 Kb7 42. Rf5 Rc3 43. Rxg5 Rxb3 44. Re5 Kc6 45. f4 Kd6 46. Re1 b5 47. f5 Rc3 48. g4 Rc8 49. Kf3 b4 50. Re6+ Kc7 51. Re2 Kd7 52. g5 b3 53. g6 Re8 54. g7 Rxe2 55. g8=Q Re5 56. Qg7+ Kd6 57. Qf6+ Kd5 58. Kf4 Re2 59. Qf7+ 1-0
2025.06.12 Zupanja Celebrates GM2
53471 Delchev, A (2444) Koellner, Ruben Gideon (2503) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. g3 Be7 6. Bg2 c6 7. O-O b5 8. Nh4 O-O 9. Nf5 b4 10. Nb1 a5 11. a3 Ba6 12. Re1 Re8 13. g4 Nf8 14. dxe5 dxe5 15. Qxd8 Bxd8 16. g5 Nh5 17. axb4 axb4 18. Bf3 Nf4 19. Bxf4 exf4 20. Nd6 Re5 21. Nd2 Bc7 22. Nf5 g6 23. Nh6+ Kg7 24. h4 Ne6 25. Ng4 Rc5 26. Bd1 Nd4 27. Nb3 Nxb3 28. cxb3 Be5 29. Nxe5 Rxe5 30. Bg4 c5 31. f3 Bb7 32. Rxa8 Bxa8 33. Rd1 h6 34. gxh6+ Kxh6 35. Rd6 Kg7 36. Ra6 Bb7 37. Rb6 Re7 1/2-1/2
2025.06.12 Zupanja Celebrates GM2
53472 Aarav, Dengla (2366) Koellner, Ruben Gideon (2503) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Ke8 7. f4 Bb4 8. Bd3 Be6 9. Nf3 exf4 10. Bxf4 c6 11. Ng5 Nbd7 12. O-O Ng4 13. h3 Nge5 14. Ne2 h6 15. Nxe6 fxe6 16. Bxe5 Nxe5 17. Nf4 Ke7 18. Be2 Bc5+ 19. Kh1 Bd6 20. b3 Rhf8 21. Nd3 Rad8 22. Rxf8 Rxf8 23. Rf1 Nxd3 24. Bxd3 Rxf1+ 25. Bxf1 Bg3 26. a4 Kd6 27. Bc4 a6 28. Bd3 Kc5 29. Bc4 Kd6 30. Bd3 Ke5 31. Kg1 b5 32. Kf1 Kd4 33. Ke2 Kc3 34. e5 Bxe5 35. Be4 c5 36. axb5 a5 37. Kd1 c4 38. Bg6 cxb3 39. cxb3 Kxb3 40. Bf7 Kb2 41. Bxe6 a4 42. Kd2 a3 43. Kd3 Bg3 44. Ke4 h5 45. Kf5 h4 46. b6 a2 47. Bxa2 Kxa2 48. b7 Kb3 49. Kg5 Kc4 50. b8=Q Bxb8 51. Kxh4 Kd4 52. Kg5 Ke4 53. h4 Bf4+ 54. Kg6 Bh6 55. g4 Kf4 56. g5 Bxg5 57. hxg5 Kg4 58. Kxg7 Kxg5 1/2-1/2
2025.06.11 Zupanja Celebrates GM2
53463 Koellner, Ruben Gideon (2503) Kovac, Petar (2361) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 b6 5. Bd3 Bb7 6. b3 Bd6 7. Bb2 O-O 8. O-O Ne4 9. c4 Nd7 10. Qc2 f5 11. cxd5 exd5 12. Ne5 Qe7 13. Ndf3 c5 14. Nxd7 Qxd7 15. Ne5 Bxe5 16. dxe5 Qf7 17. Rad1 Rac8 18. f3 Ng5 19. e4 c4 20. Be2 fxe4 21. fxe4 Qg6 22. Bg4 c3 23. Ba3 Nxe4 24. Bxc8 Rxc8 25. Qd3 h6 26. Rc1 Kh7 27. Qd4 a5 28. Rf4 b5 29. Rcf1 b4 30. Bc1 Rc7 31. e6 Qxe6 32. Rf8 Ba6 33. Re1 Rf7 34. Rxf7 Qxf7 35. Be3 c2 36. Qb2 Bd3 37. Qd4 Ba6 38. Qb2 Bd3 39. Qd4 1/2-1/2
2025.06.10 Zupanja Celebrates GM2
53460 Bai, Adelard (2401) Koellner, Ruben Gideon (2503) 1/2-1/2
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Be7 7. Nf3 a6 8. c5 b6 9. b4 a5 10. Bb2 bxc5 11. bxc5 Ba6 12. Bxa6 Rxa6 13. O-O Nbd7 14. Qe2 Qa8 15. Rfb1 Re8 16. h3 Bd8 17. Qc2 e5 18. dxe5 Nxe5 19. Nxe5 Rxe5 20. Ne2 Re8 21. Bd4 Ne4 22. Rb2 Bh4 23. f3 Ng5 24. Nf4 Ne6 25. Nxe6 Raxe6 26. Rab1 Bf6 27. Bxf6 gxf6 28. Rb7 Qd8 29. Qf2 Rxe3 30. Qg3+ Kf8 31. Rxc7 Re1+ 32. Rxe1 Rxe1+ 33. Kh2 Re7 34. Rc6 Re6 35. Rc7 Re7 36. Rc6 1/2-1/2
2025.06.01 TCh-AUT Rapid 2025
75541 Koellner, Ruben Gideon (2503) Santos Latasa, J (2620) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Be7 6. Bd3 b6 7. Ne5 O-O 8. f4 Ba6 9. Bc4 Bb5 10. Bxb5 Na6 0-1
2025.06.01 TCh-AUT Rapid 2025
75613 Injac, Teodora (2474) Koellner, Ruben Gideon (2503) 0-1
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. g3 Ne4 6. Bg2 Nxc3 7. bxc3 Be4 8. h4 c5 9. h5 Bg7 10. Rh4 d5 11. Qa4+ Nd7 12. cxd5 Bxd5 13. e4 Bc6 14. Qb3 cxd4 15. cxd4 e6 16. Kf1 Bf6 17. Rg4 Qa5 18. e5 Be7 19. h6 Bd5 20. Qd1 Rc8 21. Kg1 O-O 22. Bg5 Ba3 23. Bd2 Qa6 24. Ng5 Bxg2 25. Kxg2 Qd3 26. Be3 Qxd1 27. Rxd1 Nb6 28. Ne4 Nd5 29. Bg5 Rc2 30. Rb1 b6 31. Rb5 Re2 32. Rxd5 Rxe4 33. Rxe4 exd5 34. Re3 Bc1 35. Be7 Bxe3 36. Bxf8 Bxd4 37. Bd6 f6 38. e6 Bc5 39. Bc7 Kf8 40. Bd8 Bd4 41. f4 Ke8 42. Bc7 Ke7 43. Bb8 b5 44. Kf3 Kxe6 45. g4 Bb6 46. Ke2 f5 47. g5 Bc5 48. Kf3 d4 49. Be5 Kd5 50. Bf6 Kc4 0-1
2025.06.01 TCh-AUT Rapid 2025
75624 Koellner, Ruben Gideon (2503) Erdos, V (2542) 0-1
1. d4 d5 2. Nf3 c5 3. e3 Nf6 4. Nbd2 e6 5. c3 Nc6 6. Bd3 Qc7 7. O-O Be7 8. dxc5 a5 9. e4 Bxc5 10. exd5 exd5 11. Re1+ Be6 12. Nb3 Bb6 13. Bg5 Ne4 14. Bxe4 dxe4 15. Rxe4 O-O 16. Nbd4 Nxd4 17. Nxd4 Bd5 18. Rg4 f5 19. Bf4 Qe7 20. Rg3 Qe4 21. Qd2 Rae8 22. Bd6 Rf6 23. f3 Qe2 24. Bf4 Qxd2 25. Bxd2 Re2 26. Bg5 f4 27. Rg4 Rg6 28. Kf1 Rxb2 29. Bxf4 Rxg4 30. fxg4 Bxa2 31. Bc1 Bc4+ 32. Kg1 Rc2 33. Be3 Rxc3 34. Bf2 a4 35. h4 a3 36. Nf5 Bxf2+ 37. Kxf2 b5 38. Re1 a2 39. Re8+ Kf7 40. Nd6+ Kg6 41. Ra8 Rc1 42. Rf8 h5 43. gxh5+ Kh7 44. Ne4 Rf1+ 0-1
2025.06.01 TCh-AUT Rapid 2025
75650 Halvax, G (2440) Koellner, Ruben Gideon (2503) 1/2-1/2
1. Nf3 Nf6 2. e3 d6 3. d4 Nbd7 4. c4 e5 5. Nc3 Be7 6. Be2 c6 7. O-O O-O 8. Qc2 a6 9. a4 a5 10. b3 Qc7 11. Ba3 Re8 12. Bd3 Bf8 13. Ng5 g6 14. f4 exd4 15. exd4 Ng4 16. Rfe1 Rxe1+ 17. Rxe1 d5 18. Bc1 Bh6 19. g3 Bg7 20. Nf3 Ngf6 21. Kg2 dxc4 22. bxc4 Nf8 23. f5 Bd7 24. Bf4 Qc8 25. fxg6 hxg6 26. Be5 Bh3+ 27. Kg1 Ne6 28. Ne4 Nxe4 29. Bxe4 Qd8 30. d5 cxd5 31. cxd5 Qb6+ 32. Kh1 Nc5 33. Rb1 Qa6 34. Qxc5 Qe2 35. Qc2 Bg2+ 36. Kg1 Qxc2 37. Bxc2 Bxf3 38. Bxg7 Kxg7 39. Rxb7 Bxd5 40. Rb5 Bc4 41. Rc5 Be6 42. Kf2 Kf6 43. Ke3 Ke7 44. Be4 Ra6 45. Bd3 Kd6 46. Kd4 Ra7 47. Rb5 Bd7 48. Rb6+ Ke7 49. Bb5 Be6 50. Bc6 Rc7 51. Ra6 Bc8 52. Rb6 Bg4 53. Bb5 Rc2 54. Rb7+ Kf6 55. Bc4 Be6 56. Bxe6 fxe6 57. Rb5 Rxh2 58. Ke4 Re2+ 59. Kf3 Re5 60. Rb8 Rf5+ 61. Kg4 Rd5 62. Rf8+ Ke7 63. Ra8 Kf7 64. Kf3 Kf6 65. Rf8+ Ke7 66. Ra8 Kd6 67. Ke3 Ke5 68. Kf3 Rd3+ 69. Kf2 Rd5 70. Kf3 Rc5 71. Ra7 Kf5 72. Rf7+ Kg5 73. Re7 Kf6 74. Ra7 g5 75. Ra8 Rc3+ 76. Kg4 Rc4+ 77. Kh5 Rxa4 78. Rf8+ Kg7 79. Ra8 g4 80. Kg5 Kf7 81. Ra7+ Ke8 82. Kf6 Kd8 83. Kxe6 Kc8 84. Kd5 Ra3 85. Kc5 Kb8 86. Rg7 Rxg3 87. Kb5 Kc8 88. Kxa5 Kd8 89. Kb4 Ke8 90. Kc4 Kf8 91. Rg5 Kf7 92. Kd4 Kf6 93. Rg8 Kf7 94. Rg5 Kf6 95. Rg8 Ra3 96. Ke4 Ra4+ 97. Ke3 Kf5 98. Kf2 Ra2+ 99. Kg3 Ra3+ 100. Kg2 1/2-1/2
2025.05.31 TCh-AUT Blitz 2025
75292 Iturrizaga Bonelli, Eduardo (2578) Koellner, Ruben Gideon (2503) 1/2-1/2
1. c4 d6 2. Nc3 Nf6 3. g3 e5 4. Bg2 Be7 5. e3 c6 6. d4 Be6 7. d5 cxd5 8. cxd5 Bd7 9. Nge2 O-O 10. O-O b5 11. a3 a5 12. Qd3 Qb6 13. e4 Na6 14. Be3 Qb7 15. h3 b4 16. axb4 axb4 17. Na2 Rfc8 18. Rfc1 b3 19. Nac3 Nb4 20. Qd2 Rxa1 21. Rxa1 Nc2 22. Ra7 Qb8 23. Ra6 Nxe3 24. Qxe3 Ne8 25. Nc1 Nc7 26. Ra3 h6 27. Rxb3 Qa8 28. h4 Na6 29. Nd3 Nc5 30. Nxc5 Rxc5 31. Ra3 Qb8 32. Qd2 Bd8 33. Kh2 Bb6 34. Bh3 Be8 35. Na4 Bxa4 36. Rxa4 Rc7 37. Qb4 Ra7 38. Rxa7 Bxa7 39. Qd2 Bd4 40. b4 Qb6 41. Kg2 g6 42. Bg4 h5 43. Bd1 Kg7 44. Ba4 Qa7 45. Bc6 Qb6 46. b5 Bc5 47. Qe2 Qa7 48. Qf3 Bb6 49. Qe2 Bc5 50. Qd2 Qb6 51. Qa2 Qa7 52. Qxa7 Bxa7 53. f3 Bb6 54. Bd7 Kf8 55. Bc6 Ke7 1/2-1/2
2025.05.31 TCh-AUT Blitz 2025
75396 Blohberger, Felix (2510) Koellner, Ruben Gideon (2503) 0-1
1. d4 d6 2. Nf3 Nf6 3. g3 Nbd7 4. Bg2 e5 5. O-O Be7 6. a4 c6 7. a5 e4 8. Nfd2 d5 9. c4 Bb4 10. Qa4 Qe7 11. cxd5 cxd5 12. Nb3 O-O 13. Nc3 Nb8 14. Bg5 Bxc3 15. bxc3 Bd7 16. Bxf6 Qxf6 17. Qb4 Qc6 18. Nc5 Na6 19. Nxa6 Qxa6 20. c4 Qxc4 21. Qxc4 dxc4 22. Bxe4 Rae8 23. Bxb7 Rxe2 24. Rfc1 Bc8 25. a6 Rb2 26. Rab1 Rxb1 27. Rxb1 Bf5 28. Rb5 Bd3 29. Rc5 g6 30. d5 Rd8 31. Rc7 Kg7 32. f4 Kf6 33. Kf2 Rd6 34. Ke3 Bf1 35. Kd4 c3 36. Kxc3 Bxa6 37. Rc6 Bxb7 38. Rxd6+ 0-1
2025.05.31 TCh-AUT Blitz 2025
75456 Koellner, Ruben Gideon (2503) Erdos, V (2542) 1/2-1/2
1. d4 d5 2. Nf3 c5 3. e3 Nc6 4. Nbd2 Nf6 5. c3 cxd4 6. exd4 Bf5 7. Bb5 Qb6 8. c4 e6 9. Qa4 a6 10. Ne5 dxc4 11. Bxc6+ bxc6 12. Ndxc4 Qb5 13. Qxb5 cxb5 14. Ne3 Be4 15. f3 Bb7 16. a4 Bd6 17. axb5 axb5 18. Rxa8+ Bxa8 19. Bd2 O-O 20. Ke2 Nd5 21. Nxd5 Bxd5 22. Ra1 Bxe5 23. dxe5 Ra8 24. Rc1 Bc4+ 25. Ke3 Rd8 26. Bc3 h6 27. Ra1 g5 28. h4 Kg7 29. hxg5 hxg5 30. Rh1 Kg6 31. Kf2 Rd5 32. Rh8 b4 33. Bxb4 Rxe5 34. Bc3 Re2+ 35. Kg1 f6 36. Rg8+ Kf7 37. Rc8 Bd3 38. Rc7+ Kg6 39. Rc6 e5 40. Rd6 Bc4 41. Rc6 1/2-1/2
2025.05.31 TCh-AUT Blitz 2025
75479 Rodshtein, M (2645) Koellner, Ruben Gideon (2503) 0-1
1. Nf3 Nf6 2. g3 d6 3. d4 Nbd7 4. Bg2 e5 5. c4 Be7 6. Nc3 c6 7. d5 cxd5 8. Nxd5 Nxd5 9. Qxd5 Nf6 10. Qd1 Bd7 11. Bg5 Bc6 12. O-O O-O 13. Nh4 Qd7 14. Qd3 Qe6 15. Rad1 h6 16. Bxf6 Bxf6 17. Bxc6 bxc6 18. Qxd6 Qxc4 19. Nf5 Rad8 20. Qa3 Qxe2 21. Rde1 Qd3 22. Qxd3 Rxd3 23. Re2 Rfd8 24. Rc1 Rd2 25. Rc2 Rxe2 26. Rxe2 Bg5 27. h4 Bf6 28. Rc2 e4 29. b3 g6 30. Nxh6+ Kg7 31. Ng4 Rd1+ 32. Kg2 Bd4 33. Nh2 c5 34. Nf1 f5 35. Rd2 Ra1 36. b4 Kf6 37. bxc5 Bxc5 38. Rc2 Bb6 39. Nd2 Rd1 40. Nc4 Bd4 41. Na5 Bb6 42. Nc4 Bd4 43. Na5 Ke6 44. Nb3 Bb6 45. Rc6+ Rd6 46. Rc8 Kf7 47. Rc2 Rd3 48. Rc6 e3 49. fxe3 Rxe3 50. Rc4 Re2+ 51. Kf3 Rf2# 0-1
2025.05.30 Grand Prix PlusCity Rapid
75140 Hansen, Eric (2609) Koellner, Ruben Gideon (2503) 0-1
1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. c3 e6 6. Nbd2 Nh5 7. Bg5 f6 8. Bh4 g6 9. Bd3 cxd4 10. cxd4 Bd6 11. Rc1 O-O 12. O-O Qe7 13. Re1 g5 14. Bg3 Nxg3 15. hxg3 g4 16. Nh2 f5 17. Nhf1 Bd7 18. a3 Rac8 19. Nb3 Nb8 20. Qd2 Ba4 21. Nc5 Be8 22. Re2 Bxc5 23. dxc5 Rxc5 24. Qb4 b6 25. Rec2 Nc6 26. Qf4 Kg7 27. Qa4 Bd7 28. Bb5 Rc8 29. Rc3 a5 30. Rxc5 bxc5 31. Bxc6 Rxc6 32. Qxa5 e5 33. Nd2 Be6 34. b4 c4 35. b5 Qc5 36. Nb3 Qb6 37. bxc6 Qxb3 38. Qc7+ Kf6 39. Qd8+ Kg6 40. Qd6 Kf6 41. c7 Qb7 42. a4 Kf7 43. a5 Qb2 44. Qxe6+ Kxe6 45. c8=Q+ Kd6 46. Qd8+ Kc6 47. Rd1 0-1
2025.05.30 Grand Prix PlusCity Rapid
75152 Koellner, Ruben Gideon (2503) Shimanov, A (2578) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. e3 c6 4. Nbd2 Bf5 5. Ne5 Nbd7 6. g4 Be6 7. h3 h5 8. Rg1 hxg4 9. hxg4 g5 10. Ndf3 Nxe5 11. dxe5 Nxg4 12. Nxg5 Nxe5 13. Nxe6 fxe6 14. f4 Nf7 15. Bd3 Nd6 16. Qg4 Rh6 17. Bd2 Qb6 18. O-O-O O-O-O 19. Rh1 Rf6 20. Rde1 c5 21. Bc3 d4 22. exd4 cxd4 23. Rxe6 Rxe6 24. Qxe6+ Kb8 25. Bd2 Nc8 26. Qe5+ Qd6 27. Qe4 Bg7 28. f5 Ka8 29. Re1 Bf6 30. Qf3 Qd5 31. Qxd5 Rxd5 32. Rg1 Rd8 33. Kd1 Nd6 34. a4 a6 35. Ba5 Rh8 36. Bb6 Kb8 37. Rg4 Nf7 38. Bxd4 Ne5 39. Re4 Rh1+ 40. Ke2 Rh2+ 41. Kd1 Nxd3 42. cxd3 Bxd4 43. Rxd4 Rxb2 44. Re4 Rf2 45. Rxe7 Rxf5 46. Kc2 Rf4 1/2-1/2
2025.05.30 Grand Prix PlusCity Rapid
75174 Koellner, Ruben Gideon (2503) Rodshtein, M (2645) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 b6 5. Bd3 Bb7 6. Ne5 Bd6 7. f4 O-O 8. Qf3 c5 9. O-O Ba6 10. Bxa6 Nxa6 11. c3 b5 12. a3 Nc7 13. b4 c4 14. a4 Qc8 15. a5 Qb7 16. Qh3 Ne4 17. Nxe4 dxe4 18. Bd2 Nd5 19. f5 Bxe5 20. dxe5 exf5 21. Rxf5 Qd7 22. Raf1 Ne7 23. Rxf7 Qxh3 24. Rxf8+ Rxf8 25. gxh3 Rxf1+ 26. Kxf1 Kf7 27. Be1 Ke6 28. Ke2 a6 29. Bg3 Nf5 30. Bf4 Nh4 31. Bg3 Nf3 32. h4 Kf5 33. h3 Kg6 34. Kd1 Kf5 35. Ke2 g6 36. Kf2 Nd2 37. Ke2 Nb1 38. Be1 Kxe5 39. Kd1 Kf5 40. Kc2 h5 41. Kxb1 g5 42. hxg5 Kxg5 43. Bg3 h4 44. Bc7 1-0
2025.05.30 Grand Prix PlusCity Rapid
75191 Sarana, A (2686) Koellner, Ruben Gideon (2503) 1-0
1. d4 d6 2. Nf3 Nf6 3. c4 Nbd7 4. Nc3 e5 5. e4 Be7 6. Be2 c6 7. O-O O-O 8. d5 a6 9. Be3 cxd5 10. cxd5 b5 11. b4 Nb6 12. Nd2 Bd7 13. Rc1 Qb8 14. Nb3 Nc4 15. Bxc4 bxc4 16. Na5 Rc8 17. a3 Bd8 18. Bg5 Bxa5 19. bxa5 Ne8 20. Be3 Qb2 21. Bb6 Rab8 22. Rc2 Qxa3 23. Qd2 Rxb6 24. axb6 Qc5 25. Rb1 Rb8 26. Qe3 Qxe3 27. fxe3 Nf6 28. Ra2 Bc8 29. b7 1-0
2025.05.30 Grand Prix PlusCity Rapid
75220 Teclaf, Pawel (2555) Koellner, Ruben Gideon (2503) 1-0
1. Nf3 d6 2. d4 Nf6 3. g3 Nbd7 4. b3 e5 5. dxe5 Nxe5 6. Nxe5 dxe5 7. Qxd8+ Kxd8 8. Bb2 Bb4+ 9. Nc3 Ke8 10. a3 Bc5 11. Nb5 Bd6 12. Bg2 Ke7 13. O-O-O Ng4 14. Rdf1 a6 15. Nxd6 cxd6 16. h3 Nf6 17. f4 Nd7 18. Rd1 Rd8 19. Rd2 exf4 20. gxf4 Nf6 21. Rhd1 Rb8 22. a4 b5 23. axb5 Rxb5 24. Ba3 Ne8 25. e4 f6 26. Re1 Bb7 27. e5 Bxg2 28. exd6+ Kd7 29. Rxg2 Kc6 30. Re7 Nxd6 31. Rgxg7 Rh5 32. Rc7+ Kb6 33. c4 Ne8 34. Rb7+ Kc6 35. Rxh7 Rxh7 36. Rxh7 Rd3 37. Kc2 Rf3 38. Ra7 Nc7 39. Be7 Rxf4 40. Bd8 Ne6 41. Rxa6+ Kd7 42. Ba5 Rf2+ 43. Kd1 Nc5 44. Ra7+ Ke6 45. b4 Nd3 46. b5 Nb2+ 47. Ke1 Nd3+ 48. Kd1 Nb2+ 49. Kc1 Nxc4 50. b6 Nxa5 51. Rxa5 Kd6 52. Rb5 Rf1+ 53. Kd2 Rf2+ 54. Ke1 1-0
2025.05.29 Grand Prix PlusCity Blitz
74877 Short, N (2587) Koellner, Ruben Gideon (2503) 0-1
1. e4 d6 2. d4 Nf6 3. f3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Ke8 7. Be3 Nbd7 8. Nd2 Bc5 9. Ke2 c6 10. Nh3 a5 11. a4 Ke7 12. Nf2 Bxe3 13. Kxe3 Nc5 14. Rhd1 Nfd7 15. Nd3 f6 16. h4 Nxd3 17. cxd3 Rd8 18. Nb3 Nb6 19. Rdc1 Nxc4+ 20. dxc4 Be6 21. Rc3 b6 22. c5 Bxb3 23. Rxb3 bxc5 24. Rc1 Rab8 25. Rxb8 Rxb8 26. Rxc5 Rb3+ 27. Kf2 Rxb2+ 28. Kg3 Kd6 29. Rxa5 c5 30. h5 c4 31. Rd5+ Kc6 32. Rd8 Rb7 33. Rc8+ Rc7 34. Rb8 c3 35. Rb1 Kc5 36. Kf2 c2 37. Rc1 Kb4 38. Ke2 Kc3 39. a5 Kb2 0-1
2025.05.29 Grand Prix PlusCity Blitz
74896 Koellner, Ruben Gideon (2503) Petrov, N (2563) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 a6 4. Nbd2 Bf5 5. Ne5 h6 6. Bd3 e6 7. Bxf5 exf5 8. c4 c6 9. O-O Nbd7 10. cxd5 Nxd5 11. Ndc4 Nxe5 12. Nxe5 Bd6 13. Nc4 Bc7 14. Qf3 Qf6 15. b3 O-O 16. Ba3 Rfe8 17. Rfe1 Re6 18. Nb2 Rae8 19. Nd3 b6 20. Rac1 Re4 21. g3 Qe6 22. Rc2 f4 23. gxf4 Bxf4 24. Rec1 Bxe3 25. fxe3 Rxe3 26. Qg2 Rxd3 27. Rxc6 Qf5 28. Rf1 Nf4 29. Qc2 Re2 30. Qxe2 Nxe2+ 0-1
2025.05.29 Grand Prix PlusCity Blitz
74936 Koellner, Ruben Gideon (2503) Kozul, Z (2506) 1/2-1/2
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 Bg4 7. Be2 dxc4 8. Nxc4 Nd5 9. Qb3 c6 10. Bb2 Nd7 11. h3 Bxf3 12. Bxf3 N5b6 13. Na5 Rb8 14. Rd1 Qe8 15. O-O e5 16. b5 e4 17. Be2 c5 18. Ba3 Qe7 19. dxc5 Nxc5 20. Qc2 Rfc8 21. Rc1 Bf8 22. Nb3 Nbd7 23. Nxc5 Nxc5 24. Rfd1 b6 25. Bc4 Qg5 26. Rd5 Qh4 27. Bxc5 Rxc5 28. Rxc5 Bxc5 29. Rd1 Rd8 30. Rxd8+ Qxd8 31. Qxe4 Qd1+ 32. Kh2 Qd7 33. g3 Kg7 34. Kg2 Qe7 35. Qd5 h5 36. h4 Qf6 37. Bb3 Qe7 38. Qf3 Qf6 39. Qe4 Qe7 40. Qd5 Qf6 41. a4 Qe7 42. Bc4 Bb4 43. Kf1 Bc5 44. Ke2 Qc7 45. Kf3 Qe7 46. Kg2 Qc7 47. Qe4 Qe7 48. Qf3 Qc7 49. Qc6 Qe7 50. Bd5 Kf8 51. Bf3 Kg7 52. Be4 Kf8 53. Qa8+ Kg7 54. Bb7 Qd7 55. Bd5 Qe7 56. Qc6 Kf8 57. Qc8+ Kg7 58. Bf3 Kh7 59. Qa8 Kg7 60. Qd5 Kg8 61. Qb3 Kg7 62. Kf1 Kg8 63. Bd5 Kg7 64. Qc2 Qe5 65. Qc4 Qf6 66. Ke2 Qe7 67. Kd3 Qd6 68. Qe4 Qf6 69. Ke2 Qb2+ 70. Kf3 Qf6+ 71. Kg2 Qd6 72. Qf3 Qf6 73. Qxf6+ Kxf6 74. Kf3 Bb4 75. Ke2 Ba5 76. Kd3 Be1 77. Ke2 Ba5 78. Kf3 Bb4 79. g4 hxg4+ 80. Kxg4 Be1 81. f4 Bd2 82. e4 Kg7 83. e5 Bc3 84. h5 gxh5+ 85. Kxh5 Bd2 86. Kg5 Bc3 87. Kf5 Bd2 88. Bc6 Bc1 89. Bd7 Kf8 90. Ke4 Ke7 91. Bc6 f6 92. exf6+ Kxf6 93. Bd7 Bd2 94. Bh3 Ba5 95. Kd5 Bd2 96. f5 Be1 97. Kc6 Ba5 98. Kb7 Ke7 99. Kxa7 Kf6 100. Kb7 Ke7 101. Kc7 Kf6 102. Kd6 Bb4+ 103. Kd5 Ba5 104. Ke4 Bb4 105. Bf1 Ba5 106. Bc4 Bb4 107. Be6 Ba5 108. Kd5 Bb4 109. Kc6 Ba5 110. Kc7 Ke7 1/2-1/2
2025.05.29 Grand Prix PlusCity Blitz
74970 Meier, Geo (2596) Koellner, Ruben Gideon (2503) 1-0
1. Nf3 d5 2. g3 Nd7 3. d4 Nb6 4. b3 Bf5 5. Ba3 Nf6 6. Bg2 g6 7. O-O Bg7 8. Nbd2 O-O 9. c4 c6 10. Rc1 Re8 11. Nh4 Be6 12. e3 Qd7 13. Re1 Bh3 14. Bh1 e5 15. dxe5 Rxe5 16. Bb2 Rh5 17. cxd5 Nbxd5 18. Nc4 Rd8 19. Qe2 Qe7 20. Bf3 Rh6 21. Ng2 Qe6 22. Nf4 Nxf4 23. exf4 Qxe2 24. Rxe2 Nd5 25. Bxg7 Kxg7 26. Rd1 Be6 27. h4 Rb8 28. Rdd2 a6 29. Re5 Kf6 30. Ne3 Nxe3 31. fxe3 Ke7 32. Kf2 f6 33. Rc5 Rg8 34. e4 g5 35. hxg5 fxg5 36. f5 Rh2+ 37. Ke3 Rxd2 38. Kxd2 Bc8 39. Ke3 Kd6 40. b4 Kc7 1-0
2025.05.27 Titled Tue 27th May Late
73272 Koellner, Ruben Gideon (2503) Nayak, Rajesh (2286) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 a5 7. b5 c5 8. dxc5 Nfd7 9. Ba3 Bxa1 10. Qxa1 dxc4 11. Bxc4 Nf6 12. O-O Bf5 13. Nd4 Bc8 14. N2f3 Nbd7 15. Rd1 Qc7 16. b6 Qb8 17. Nb5 Ne4 18. Nc7 Ndxc5 19. Nxa8 Qxa8 20. Qe5 Na4 21. Qxe4 Nc3 22. Qd4 Nxd1 23. Qxd1 Bg4 24. h3 Bxf3 25. Qxf3 Qd8 26. Qxb7 Qd1+ 27. Kh2 Qc2 28. Qxe7 1-0
2025.04.29 Titled Tue 29th Apr Late
102591 Li, Hui (2055) Koellner, Ruben Gideon (2499) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. Re1 h6 8. a4 Qc7 9. a5 Nf8 10. Bb3 Ng6 11. d5 a6 12. Be3 O-O 13. Nd2 c5 14. h3 Nd7 15. Bc4 Kh7 16. Bd3 Nf6 17. Nc4 Bd7 18. Nb6 Rad8 19. Ne2 Nh5 20. Ng3 Nhf4 21. Bf1 Bb5 22. c4 Bd7 23. Nxd7 Qxd7 24. Nf5 Nh8 25. g3 Nfg6 26. h4 Bf6 27. Bh3 Qc7 28. Qd2 Ne7 29. Bxh6 Nxf5 30. Bxf5+ Kg8 31. Be3 g6 32. Bh3 Bg7 33. b4 f5 34. Bg5 Rc8 35. b5 Rce8 36. bxa6 bxa6 37. Rab1 Rb8 38. Qc2 f4 39. Be6+ Kh7 40. Rxb8 Qxb8 41. Rb1 Qc7 42. Rb5 axb5 43. cxb5 Qxa5 44. Qb3 Qe1+ 0-1
2025.04.29 Titled Tue 29th Apr Late
102739 Koellner, Ruben Gideon (2499) Da Matta, Eduardo Cesar (2047) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 Be7 5. Bd3 b6 6. e4 dxe4 7. Nxe4 Bb7 8. Qe2 Nbd7 9. c3 O-O 10. O-O c5 11. Nxf6+ Nxf6 12. dxc5 Bxc5 13. Bg5 Be7 14. Rad1 Nd5 15. Bxe7 Qxe7 16. Qe4 g6 17. Qe5 Rad8 18. Be4 Rd7 19. c4 Nb4 20. Bxb7 Rxb7 21. a3 Nc6 22. Qd6 Qxd6 23. Rxd6 Na5 24. Rc1 Rc8 25. Nd2 Rbc7 26. b3 b5 27. Ra6 Nb7 28. Rxa7 bxc4 29. Nxc4 Nd6 30. Rxc7 Rxc7 31. g3 Ne4 32. Rd1 Nc5 33. b4 Nb3 34. Ne5 Ra7 35. Rd3 Nc1 36. Re3 Rc7 37. Kg2 Na2 38. a4 Nc3 39. a5 Nb5 40. Rd3 Rc2 41. Rd8+ Kg7 42. Rd7 Kf6 43. Nxf7 Nc3 44. a6 Ne4 45. a7 Rxf2+ 46. Kg1 Ra2 47. Nd8 Kf5 48. Nc6 Kg4 49. Rd8 Kf3 50. Rf8+ Ke3 51. a8=Q 1-0
2025.04.29 Titled Tue 29th Apr Late
102895 Koellner, Ruben Gideon (2499) Moussard, J (2587) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 a5 7. b5 c5 8. dxc5 Bg4 9. Ba3 Nbd7 10. Be2 Rc8 11. Rc1 Nxc5 12. O-O Nfe4 13. Nxe4 Nxe4 14. Qxd5 Nc3 15. Rxc3 Qxd5 16. cxd5 Rxc3 17. Bxe7 Re8 18. d6 Bd7 19. Nd4 Bxd4 20. exd4 Rc2 21. Bf3 Rxa2 22. Bxb7 Bxb5 23. Rb1 Bd7 24. Rc1 Rb8 25. Bf3 Rc2 26. Ra1 a4 27. h4 Rcb2 28. Kh2 Rb1 29. Ra3 R8b3 30. Ra2 a3 31. Rc2 R1b2 32. Rc7 a2 33. Rxd7 a1=Q 34. Rd8+ Kg7 35. Bf8+ Kf6 36. Be7+ Ke6 37. d5+ Kf5 38. Bg5 Rb8 39. Rd7 R2b7 40. Re7 Rxe7 41. dxe7 Qe5+ 42. g3 Re8 43. Kg2 Qd6 44. g4+ Ke5 45. Kg3 Qd7 46. Kg2 Rxe7 47. Be3 Kd6 48. h5 Rxe3 49. fxe3 gxh5 50. gxh5 Qe7 51. Kf2 Qh4+ 52. Ke2 Qg5 53. Kd3 h6 54. Ke2 Qe5 55. Kf2 f6 56. Ke2 Qg5 57. Kd3 f5 58. Ke2 f4 59. exf4 Qxf4 60. Kf2 Ke5 61. Kg2 Qe3 62. Kg3 Kf5 63. d6 Qf4+ 64. Kg2 Qxd6 65. Kh3 Kf4 66. Be4 Qd2 67. Bg6 Qf2 68. Bf5 Qg3# 0-1
2025.04.29 Titled Tue 29th Apr Late
102940 Kocharin, Timur (2263) Koellner, Ruben Gideon (2499) 0-1
1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. c3 Nbd7 5. Nf3 d5 6. dxe5 dxe4 7. exf6 exf3 8. Qxf3 Ne5 9. Qe2 Qxd3 10. Qxe5+ Be6 11. Qe3 Qa6 12. Nd2 O-O-O 13. Qe2 Qxe2+ 14. Kxe2 gxf6 15. Nf3 Bc4+ 16. Ke1 Bc5 17. Bd2 Rhe8+ 18. Kd1 Be2+ 19. Kc1 Bxf2 20. Nd4 Bd3 21. b3 c5 22. Nf3 Re2 23. Rd1 Be4 24. Be1 Rc2+ 25. Kb1 Rxd1# 0-1
2025.04.29 Titled Tue 29th Apr Late
103112 Koellner, Ruben Gideon (2499) Yeletsky, Ivan (2469) 0-1
1. d4 d5 2. Nf3 e6 3. e3 c6 4. Nbd2 Bd6 5. Bd3 Nd7 6. e4 Ne7 7. c3 Ng6 8. O-O O-O 9. g3 e5 10. Re1 exd4 11. cxd4 dxe4 12. Nxe4 Nf6 13. Nxd6 Qxd6 14. Ne5 Be6 15. Nxg6 fxg6 16. Bf4 Qd7 17. Rc1 Rad8 18. Bf1 Bd5 19. Bg2 Bxg2 20. Kxg2 Nd5 21. Be5 g5 22. Rc2 Rf7 23. Qh5 Qf5 24. Qe2 g4 25. Qe4 Qh5 26. Kg1 h6 27. a3 Re8 28. Rce2 Re6 29. Qg2 Qf5 30. Qe4 Qh5 31. Qd3 Rf3 32. Qc2 Qf7 33. Re4 Qf5 34. R4e2 Qf7 35. Bb8 Rxf2 36. Rxf2 Rxe1+ 37. Kg2 Ne3# 0-1
2025.04.29 Titled Tue 29th Apr Late
103291 Salman, Ilhan Serhat (2092) Koellner, Ruben Gideon (2499) 1/2-1/2
1. b3 e5 2. Bb2 Nc6 3. e3 d5 4. Bb5 Ne7 5. Bxe5 a6 6. Bxc6+ Nxc6 7. Bb2 Qg5 8. Qf3 Bg4 9. Qg3 Bd6 10. f4 Qg6 11. d3 Nb4 12. Na3 h5 13. h3 Nxc2+ 14. Nxc2 Qxd3 15. hxg4 Qxc2 16. Qf2 Bb4+ 17. Kf1 Qe4 18. Rxh5 Rxh5 19. gxh5 O-O-O 20. Nf3 f6 21. Rc1 Re8 22. Bd4 Ba3 23. Rd1 c5 24. Bb2 Bb4 25. Qe2 d4 26. Qd3 Qxe3 27. Qxe3 Rxe3 28. Bc1 Re8 29. Bd2 Bxd2 30. Rxd2 Kd7 31. Re2 Rh8 32. g4 b5 33. Rh2 Kd6 34. Kf2 Kd5 35. Kg3 c4 36. Rd2 d3 37. Rd1 a5 38. Kf2 a4 39. Ke3 Re8+ 40. Kf2 Re2+ 41. Kg3 Rxa2 42. bxc4+ bxc4 43. g5 fxg5 44. fxg5 Rb2 45. h6 gxh6 46. gxh6 Rb8 47. Ra1 Ra8 48. h7 Rh8 49. Rxa4 Rxh7 50. Ra5+ Kc6 51. Ne5+ Kb7 52. Nxc4 Rd7 53. Ra1 Rd4 54. Nd2 Rb4 55. Kf3 Rb2 56. Ke3 Rb6 57. Kxd3 Rd6+ 58. Kc3 Rd7 59. Nc4 Rh7 60. Kb4 Kc6 61. Ra6+ Kd5 62. Rd6+ Ke4 63. Re6+ Kd4 64. Re1 Rb7+ 65. Nb6 Rxb6+ 66. Ka5 Rb8 67. Rd1+ Kc5 68. Rc1+ Kd5 69. Rd1+ Kc4 70. Rc1+ Kd3 71. Rc7 Kd4 72. Rc1 Rb2 73. Ka6 Kd5 74. Ka7 Rd2 75. Kb6 Rd4 76. Ka6 Rc4 77. Rxc4 Kxc4 1/2-1/2
2025.04.29 Titled Tue 29th Apr Late
103378 Gogolev, A (2241) Koellner, Ruben Gideon (2499) 0-1
1. d4 d6 2. e4 Nf6 3. Nd2 e5 4. c3 Nbd7 5. Ngf3 Be7 6. Bd3 c6 7. O-O h6 8. h3 Qc7 9. Re1 Nf8 10. a4 g5 11. dxe5 dxe5 12. Nh2 Ng6 13. Nc4 Be6 14. Ne3 O-O-O 15. Qc2 Nf4 16. Bc4 h5 17. Bxe6+ fxe6 18. b4 g4 19. h4 Rhf8 20. g3 Nd3 21. Rd1 Nxe4 22. Rxd3 Rxd3 23. Qxd3 Nxf2 24. Qc4 e4 25. Qxe6+ Kb8 26. Nef1 Bd6 27. Bh6 Nh3+ 28. Kh1 Rc8 29. Rd1 Bxg3 30. Nxg3 Nf2+ 31. Kg2 Nxd1 32. Nxe4 Rd8 33. Bg5 Rf8 34. Bf6 Ka8 35. Nf1 Qf4 36. Qe7 Qf3+ 0-1
2025.04.29 Titled Tue 29th Apr Late
103476 Koellner, Ruben Gideon (2499) Danila, Tudor-Gabriel (2178) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 Be7 5. Bd3 O-O 6. O-O b6 7. e4 dxe4 8. Nxe4 Bb7 9. Qe2 Nbd7 10. c3 Nxe4 11. Bxe4 Bxe4 12. Qxe4 Nf6 13. Qc6 Qd6 14. Ne5 Rfe8 15. a4 a5 16. h3 Qxc6 17. Nxc6 Bd6 18. Bg5 Nd7 19. Rfe1 f6 20. Be3 e5 21. Rad1 e4 22. d5 Nc5 23. Bxc5 Bxc5 24. b4 axb4 25. cxb4 Bd6 26. Ra1 f5 27. Rec1 Kf7 28. a5 bxa5 29. bxa5 f4 30. Rc3 g5 31. a6 e3 32. fxe3 fxe3 33. a7 e2 34. Kf2 h5 35. Re1 h4 36. Rxe2 Bg3+ 37. Kf3 Rxe2 38. Kxe2 Bh2 39. Rb3 Bg1 40. Rb8 Rxa7 41. Nxa7 Bxa7 42. Rb7 Bb6 43. d6 Ke6 44. dxc7 1-0
2025.04.29 Titled Tue 29th Apr Late
103606 Howell, D (2668) Koellner, Ruben Gideon (2499) 1-0
1. d4 d6 2. c4 e5 3. Nc3 exd4 4. Qxd4 Nc6 5. Qd2 g6 6. b3 Bh6 7. e3 Nf6 8. Bb2 O-O 9. Nge2 Re8 10. Ng3 Ng4 11. Be2 Nxf2 12. Kxf2 Bxe3+ 13. Qxe3 Rxe3 14. Kxe3 Qg5+ 15. Kf2 Qd2 16. Rhb1 Ne5 17. Nce4 Nd3+ 18. Kf1 Qf4+ 19. Bf3 Nxb2 20. Rxb2 Qe5 21. Rab1 h5 22. Kg1 h4 23. Nh1 Bf5 24. Re2 c6 25. Rd1 Rd8 26. Nhf2 d5 27. cxd5 Rxd5 28. Nd2 Qd4 29. Bxd5 cxd5 30. Nf3 Qc5 31. Nxh4 Bg4 32. Nf3 Bxf3 33. gxf3 a5 34. Red2 Qc3 35. Kg2 b5 36. Rxd5 1-0
2025.04.29 Titled Tue 29th Apr Late
103725 Koellner, Ruben Gideon (2499) Ceyhan, Mert (2220) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Ne5 Nbd7 5. g4 Nxe5 6. gxf5 Neg4 7. c4 c6 8. Nc3 h5 9. cxd5 Nxd5 10. Qb3 Nxc3 11. bxc3 Qd7 12. Bc4 Qxf5 13. Qxb7 Qxf2+ 14. Kd1 Qf3+ 15. Kc2 Rd8 16. Rf1 Qg2+ 17. Kb3 Nf6 18. d5 cxd5 19. Bb5+ Nd7 20. Ba3 e6 21. Rab1 Bxa3 22. Kxa3 Qxh2 23. Bxd7+ Rxd7 24. Qc8+ Rd8 25. Qc6+ Rd7 26. Rb7 Qd6+ 27. Qxd6 Rxd6 28. Rfxf7 Ra6+ 29. Kb4 Rb6+ 30. Kc5 Rxb7 31. Rxb7 O-O 32. Rxa7 h4 33. Ra4 g5 34. Rg4 Rf5 35. a4 h3 36. Rg3 h2 37. Rh3 Rf2 38. a5 g4 39. Rh4 g3 40. a6 Ra2 41. Kb5 Ra1 42. Rg4+ Kf7 43. Rf4+ Ke7 44. a7 Rxa7 45. Rh4 Ra1 46. Rh7+ Kd6 47. c4 h1=Q 48. c5+ Ke5 49. Rxh1 Rxh1 50. c6 Rc1 51. c7 Rxc7 52. e4 Kxe4 53. Ka6 Rc2 54. Kb7 g2 55. Kb8 g1=Q 56. Ka8 Qb1 0-1
2025.04.27 Bundesliga 2024-25
106487 Kovacevic, A (2479) Koellner, Ruben Gideon (2481) 1/2-1/2
1. Nf3 d5 2. g3 Nd7 3. d4 Nb6 4. Nc3 Bf5 5. Nh4 Bg4 6. f3 Bd7 7. e4 e6 8. Be2 Na4 9. Nxa4 Bxa4 10. b3 Bc6 11. e5 Bb4+ 12. Bd2 Ba3 13. Bc1 Bb4+ 14. Bd2 Ba3 15. Bc1 1/2-1/2
2025.04.26 Bundesliga 2024-25
106439 Koellner, Ruben Gideon (2481) Gungl, T (2338) 1-0
1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 e6 6. c3 Be7 7. Bd3 O-O 8. Ne5 Nxe5 9. dxe5 Nd7 10. h4 f5 11. h5 c4 12. Bc2 b5 13. g4 Nc5 14. gxf5 exf5 15. Nf3 Be6 16. Rg1 Qb6 17. Nd4 Rf7 18. Nxf5 Bxf5 19. Bxf5 Rxf5 20. Qxd5+ Kh8 21. Qxa8+ Rf8 22. Qg2 Nd3+ 23. Kf1 Rf7 24. Rd1 Bf8 25. Rxd3 cxd3 26. Qd5 Qb7 27. Qxb7 Rxb7 28. Ke1 b4 29. Kd2 bxc3+ 30. Kxc3 d2 31. a3 1-0
2025.04.25 Bundesliga 2024-25
106391 Kocharin, Timur (2234) Koellner, Ruben Gideon (2481) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. a4 Be7 6. Bc4 O-O 7. O-O exd4 8. Nxd4 Re8 9. Re1 Ne5 10. Ba2 Bg4 11. f3 Bd7 12. Be3 a6 13. Qd2 c5 14. Nde2 b5 15. axb5 axb5 16. Nd5 Nxd5 17. Bxd5 Rxa1 18. Rxa1 Nc4 19. Bxc4 bxc4 20. Nc3 Be6 21. Nd5 Bf8 22. Rd1 Qd7 23. Qc3 Qa4 24. Bf4 Rb8 25. Nc7 Rd8 26. Nd5 Qa2 27. h3 Rb8 28. Bc1 Qa4 29. Bf4 Qb5 30. Ne3 Rb6 31. Nd5 Qxb2 32. Qxc4 Rb4 33. Qe2 Rd4 34. Rxd4 Qxd4+ 35. Qe3 Qd1+ 36. Kh2 Bxd5 37. exd5 Qxd5 38. Qe4 Qe6 39. c4 g6 40. g4 Qf6 41. Kg3 h6 42. Qd5 Kh7 43. Qe4 Be7 44. Be3 Qe6 45. Kg2 Bf6 46. Kf2 Be5 47. Qd3 f5 48. gxf5 Qxf5 49. Qxf5 gxf5 50. Ke2 Kg6 51. Bd2 Bg3 52. Be3 Kh5 53. Kf1 Be5 54. Bd2 Kg6 55. Ke2 Bg7 56. Bf4 Bf8 57. Ke3 Kf6 58. Kd3 Ke6 59. Kc3 Bg7+ 60. Kd3 d5 61. Bg3 Be5 62. Bf2 Bd6 63. Be3 Bf8 64. Bf4 Bg7 65. Be3 d4 66. Bf4 Bf8 67. Ke2 Kf6 68. Kd3 Kg6 69. Ke2 Kh5 70. Bg3 Be7 71. Kd3 Kg5 72. Ke2 Kg6 73. Bf4 Kh5 74. Bg3 Kg5 75. Kd3 Bd8 76. Ke2 Ba5 77. Kd3 Bb4 78. Kc2 Ba3 79. Kd2 Bb2 80. Kc2 Bc3 81. Kd3 Kf6 82. Bf4 h5 83. Ke2 Ke6 84. Kd3 Kd7 85. Be5 Ba5 86. Bf4 Bc7 87. Bd2 Bg3 88. Ke2 Ke6 89. Kd3 Kf6 90. Bh6 Bd6 91. Bd2 Kg6 92. Ke2 Kf7 93. Ba5 Ke6 94. Bd8 Bf4 95. Kd3 Kd7 96. Bf6 Kc7 97. Be7 Bd6 98. Bg5 Kb6 99. Bd8+ Ka6 100. Kc2 Bb8 101. Be7 Ba7 102. Bg5 Bb6 103. Bd2 Bc7 104. Kd3 Ba5 105. Bg5 Be1 106. Bd8 Bg3 107. Kc2 Kb7 108. Be7 Kb6 109. Bd8+ Kc6 110. Kd3 Kd7 111. Bg5 Ke6 112. Bd2 Ke5 113. Ke2 Kf6 114. Ba5 Bd6 115. Bd2 Bc7 116. Kd3 Bg3 117. Ke2 Bh2 118. Ba5 Ke6 119. Bd8 Bd6 120. Bg5 Be7 121. Bf4 Kf6 122. Kd3 1/2-1/2
2025.04.06 TCh-AUT 2024-25
129141 Koellner, Ruben Gideon (2499) Dotzer, Lukas (2453) 1/2-1/2
1. Nf3 d5 2. d4 Nf6 3. c3 Bf5 4. Qb3 Qc8 5. c4 e6 6. cxd5 exd5 7. Nc3 c6 8. Bf4 Nbd7 9. Rc1 Be7 10. e3 O-O 11. h3 h6 12. Be2 Nb6 13. a4 Bd8 14. a5 Nc4 15. a6 b5 16. Qa2 b4 17. Na4 b3 18. Qxb3 Ba5+ 19. Nc3 Qxa6 20. O-O Qb6 21. Qxb6 axb6 22. b3 Bxc3 23. Rxc3 Ra3 24. Bd1 Ne4 25. Rc1 Na5 26. Ne5 c5 27. dxc5 bxc5 28. f3 Nd2 29. e4 Nxf1 30. exf5 c4 31. Kxf1 Nxb3 32. Bxb3 cxb3 33. Nd3 Re8 34. Nb2 Ra2 35. Rb1 Rea8 36. Be5 Ra1 37. Rxa1 Rxa1+ 38. Ke2 Rc1 39. g3 f6 40. Bd4 Rc2+ 41. Ke3 Rg2 42. g4 h5 43. gxh5 Kh7 44. Nd3 Kh6 45. Bb2 Rc2 46. Kd4 Kxh5 47. Kxd5 Kg5 48. Ke4 Re2+ 49. Kd4 Kxf5 50. h4 Rh2 51. Kc4 Rxh4+ 52. Kxb3 Rh3 53. Ne1 Kf4 54. Kc4 Ke3 55. Nc2+ Kxf3 56. Nd4+ Kg4 57. Ne6 g6 58. Kd5 f5 59. Bc1 Rh1 60. Be3 Rd1+ 61. Ke5 Re1 62. Kd4 Ra1 63. Ke5 Ra4 64. Kf6 Ra6 65. Kf7 Rc6 66. Bd2 Rc2 67. Bh6 Kh5 68. Be3 Rc3 69. Bd2 Rc4 70. Ng7+ Kg4 71. Kxg6 Rc2 72. Nxf5 Rc6+ 73. Kf7 Kxf5 74. Ke7 Ke5 75. Be1 Kd5 76. Bg3 Rg6 77. Bh2 Rg7+ 78. Kf6 Rg2 79. Bb8 Rf2+ 80. Ke7 Re2+ 81. Kf6 Re6+ 82. Kf7 Rb6 83. Bh2 Rb2 84. Bg3 Rb3 85. Bh2 Rh3 86. Bb8 Rh4 87. Kf6 Ke4 88. Bg3 Rh8 89. Ke7 Rg8 90. Bh2 Rg2 91. Bb8 Rf2 92. Bg3 Rd2 93. Bd6 Kd5 94. Bg3 Rg2 95. Bb8 Rg8 96. Bh2 Rh8 1/2-1/2
2025.04.05 TCh-AUT 2024-25
129118 Balint, Peter (2366) Koellner, Ruben Gideon (2499) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 O-O 8. Re1 b6 9. d5 cxd5 10. Bxd5 Nxd5 11. Nxd5 Nf6 12. Nxf6+ Bxf6 13. c4 Be6 14. b3 a6 15. Qd3 Be7 16. Be3 Qc7 17. Nd2 Qb7 18. f3 f5 19. exf5 Bxf5 20. Ne4 b5 21. axb5 axb5 22. Rxa8 Qxa8 23. Rd1 Bg6 24. cxb5 Rd8 25. b6 d5 26. Qb5 dxe4 27. Rxd8+ Qxd8 28. Kf2 Be8 29. Qxe5 Qd6 30. Qxe4 Bc6 31. Qg4 Qd5 32. Bd4 Bf8 33. b4 h5 34. Qf4 Bxb4 35. Qe3 Bd6 36. h4 Qa2+ 37. Kg1 Qb1+ 38. Kf2 Qa2+ 39. Kg1 Bg3 40. Qc1 Qd5 41. Qb2 Bb7 42. Qb4 g6 43. Qc3 Kf7 44. Kh1 Qd8 45. Kg1 Bxh4 46. Qc4+ Qd5 47. Qc7+ Be7 48. Qf4+ Ke6 49. Qe3+ Kd7 50. Qc3 Bd6 51. Qe3 Bg3 52. Qc3 Qf5 53. Qb3 Qd5 54. Qc3 h4 55. Qe3 Qe6 56. Qd2 Qe1+ 57. Qxe1 Bxe1 58. Bf2 Bxf2+ 59. Kxf2 Kc6 60. Ke3 Bc8 0-1
2025.04.04 TCh-AUT 2024-25
129064 Koellner, Ruben Gideon (2499) Bacrot, E (2633) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 b6 5. Bd3 Bb7 6. Ne5 c5 7. c3 Be7 8. f4 Qc8 9. g4 Nc6 10. g5 Nd7 11. Ndf3 Ndxe5 12. fxe5 Qc7 13. Qe2 O-O-O 14. Bd2 f6 15. gxf6 gxf6 16. exf6 Bxf6 17. O-O-O e5 18. dxe5 Nxe5 19. Nxe5 Bxe5 20. Rhf1 Bxh2 21. Qh5 Rdf8 22. Rxf8+ Rxf8 23. Qxh7 Qxh7 24. Bxh7 Kc7 25. Bd3 Rf7 26. Rf1 Rxf1+ 27. Bxf1 Kd6 28. Be1 Bc8 29. Kd2 Be6 30. Bh4 Be5 1/2-1/2
2025.03.18 Titled Tue 18th Mar Late
145180 Redzisz, Michal (2234) Koellner, Ruben Gideon (2495) 0-1
1. d4 d6 2. c4 e5 3. Nc3 exd4 4. Qxd4 Nc6 5. Qd2 g6 6. b3 Bh6 7. e3 Nf6 8. Bb2 O-O 9. Nf3 Re8 10. Be2 Bf5 11. O-O Ng4 12. Nd5 Be4 13. Nd4 Bxd5 14. Bxg4 Ne5 15. Be2 Be4 16. f3 Bc6 17. f4 Nd7 18. Nxc6 bxc6 19. Bf3 Bg7 20. Bxg7 Kxg7 21. Bxc6 Rb8 22. Qd4+ Kg8 23. Qxa7 Re7 24. Bxd7 Rxd7 25. e4 c5 26. Qa3 Re7 27. Rfe1 Qb6 28. Rad1 Rbe8 29. Rd2 Qc6 30. e5 dxe5 31. fxe5 Rxe5 32. Rxe5 Rxe5 33. Rd8+ Kg7 34. Qb2 Qf6 35. Qd2 Rf5 36. Qe2 Qxd8 0-1
2025.03.18 Titled Tue 18th Mar Late
145415 Koellner, Ruben Gideon (2495) Asensio Ramos, E (2227) 1-0
1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Nbd2 Bd6 5. Bd3 b6 6. e4 dxe4 7. Nxe4 Bb7 8. Nxf6+ Qxf6 9. Bg5 Bxf3 10. Qd2 Bf4 11. Bxf4 Bxg2 12. Rg1 Bc6 13. Be5 Qf3 14. Bxg7 Rg8 15. Qe2 Qxe2+ 16. Kxe2 f5 17. Be5 Rg6 18. h4 Nd7 19. Bxc7 Rc8 20. Bf4 Nf6 21. Be5 Kf7 22. f3 Rcg8 23. Rxg6 Rxg6 24. Kf2 Nd7 25. Bf4 h5 26. a4 a5 27. b3 Rg8 28. Re1 Nf6 29. Bg5 Nd5 30. Bd2 Ne7 31. Bf4 Nd5 32. Be5 Ne7 33. Be2 Ng6 34. Rh1 Nxe5 35. dxe5 f4 36. Rg1 Rxg1 37. Kxg1 Bb7 38. Kf2 Bc6 39. Bd3 Bd5 40. Be4 Ke7 41. Ke2 Kd7 42. Bxd5 exd5 43. Kd3 Ke7 44. Kd4 Ke6 45. c3 b5 46. axb5 a4 47. bxa4 Kd7 48. Kxd5 1-0
2025.03.18 Titled Tue 18th Mar Late
145601 Karvatskyi, Oleksii (2114) Koellner, Ruben Gideon (2495) 0-1
1. Nc3 d6 2. e4 Nf6 3. d4 e5 4. Bg5 Be7 5. Nf3 Nbd7 6. Bb5 c6 7. Ba4 O-O 8. Bb3 h6 9. Bh4 b5 10. a3 a5 11. O-O Ba6 12. Re1 b4 13. axb4 axb4 14. Na4 Qc7 15. Bg3 Bb5 16. Nh4 Rfe8 17. Nf5 Bf8 18. dxe5 dxe5 19. Qf3 c5 20. c4 Bc6 21. Bh4 Nh7 22. Ne3 Qb7 23. Nd5 Ra6 24. Bc2 b3 25. Qxb3 Qxb3 26. Bxb3 Rea8 27. Ndc3 Nb6 28. Ra3 Nxa4 29. Bxa4 Rxa4 30. Nxa4 Rxa4 31. Rxa4 Bxa4 32. Ra1 Bb3 33. Ra8 f6 34. f3 Bxc4 35. Bf2 Kf7 36. Ra7+ Kg6 37. Be3 h5 38. h4 Bb3 39. Kf2 c4 40. g4 hxg4 41. fxg4 f5 42. exf5+ Kf6 43. Bg5+ Nxg5 44. Ra6+ Kf7 45. hxg5 Bc5+ 46. Ke2 Bc2 47. Kd2 Bd3 48. Ra5 Bb4+ 49. Ke3 Bxa5 50. g6+ Kf6 51. Kf3 Bb6 0-1
2025.03.18 Titled Tue 18th Mar Late
145786 Koellner, Ruben Gideon (2495) Woodward, Andy (2536) 0-1
1. d4 g6 2. Nf3 Bg7 3. e4 c6 4. Nbd2 d5 5. e5 h5 6. Bd3 Nh6 7. O-O Bf5 8. Qe2 Nd7 9. Re1 Nf8 10. Ng5 e6 11. Ndf3 Nd7 12. c3 Qb6 13. a4 Bxd3 14. Qxd3 Nf5 15. a5 Qb5 16. Qxb5 cxb5 17. b4 Rc8 18. Bd2 Nb8 19. g3 Ke7 20. h3 Rc7 21. Kg2 Rhc8 22. g4 Nh6 23. Kg3 Rh8 24. Rh1 Rcc8 25. Raf1 Nc6 26. Ne1 Nxe5 27. dxe5 Bxe5+ 28. f4 Bxc3 29. Nef3 f6 30. Bxc3 Rxc3 31. Rc1 Rhc8 32. Rxc3 Rxc3 33. Nxe6 Kxe6 34. Re1+ Kd7 35. Rd1 Kd6 36. Re1 Rb3 37. Re8 Nf7 38. Rb8 Kc7 39. Rf8 Nd6 40. Kg2 hxg4 41. hxg4 Ne4 42. Nd4 Rxb4 43. Ne6+ Kd6 44. f5 gxf5 45. gxf5 Ke5 46. Ng7 Kf4 47. Rd8 Rb2+ 48. Kf1 Kf3 49. Kg1 Rg2+ 50. Kh1 Nf2# 0-1
2025.03.18 Titled Tue 18th Mar Late
146008 Koellner, Ruben Gideon (2495) Hadzovic, A (2340) 1-0
1. d4 d6 2. Nf3 g6 3. e4 Bg7 4. Nbd2 Nc6 5. c3 e5 6. dxe5 dxe5 7. Bc4 Nf6 8. O-O O-O 9. a4 Nh5 10. b4 Nf4 11. Ba3 Re8 12. g3 Nh3+ 13. Kg2 Ng5 14. Nxg5 Qxg5 15. Nf3 Qf6 16. Qe2 h5 17. Bc1 Bg4 18. h3 Bxf3+ 19. Qxf3 Qxf3+ 20. Kxf3 Bf8 21. Be3 a6 22. Rfd1 Rad8 23. b5 Na5 24. Ba2 axb5 25. axb5 b6 26. Bd5 Bd6 27. Ke2 Rb8 28. f4 Nb7 29. Rf1 exf4 30. gxf4 Nc5 31. e5 Bf8 32. Rg1 Kg7 33. Ra7 Red8 34. c4 Rbc8 35. f5 Nd7 36. e6 Nf6 37. Bg5 Nxd5 38. Bxd8 Nf4+ 39. Kf3 Nxh3 40. Rh1 Rxd8 41. Rxh3 Bd6 42. exf7 Kxf7 43. fxg6+ Kxg6 44. Ra2 Rf8+ 45. Ke4 Rf4+ 46. Kd5 Rf5+ 47. Kd4 Rf4+ 48. Kd3 h4 49. Rg2+ Kf5 50. Rg7 Rg4 51. Rh7 Rg3+ 52. Rxg3 hxg3 53. Ke3 Ke5 54. Rh5+ Ke6 55. Kf3 Kf6 56. Rd5 Ke6 57. Rd4 Be5 58. Rg4 Kd6 59. Rg5 Ke6 60. Rg6+ Kf5 61. Rg8 Bd6 62. Rg7 Ke5 63. Rg4 Ke6 64. Rg5 Kd7 65. Rg6 Ke7 66. Ke4 Kf7 67. Kf5 Ke7 68. Rg7+ Kf8 69. Rg4 Kf7 70. Rg5 Ke7 71. Rg7+ Kf8 72. Rg6 Kf7 73. Rg4 Kf8 74. Ke6 Bc5 75. Rxg3 Bd6 76. Rf3+ Ke8 77. Rh3 Kf8 78. Rh7 1-0
2025.03.18 Titled Tue 18th Mar Late
146142 Rueda Rojas, Richard Alejandro (1965) Koellner, Ruben Gideon (2495) 0-1
1. d4 d6 2. c4 e5 3. dxe5 dxe5 4. Qxd8+ Kxd8 5. Nc3 Be6 6. b3 c6 7. Bb2 Nd7 8. O-O-O Kc7 9. Nf3 f6 10. e4 Bc5 11. Rd2 Nh6 12. Bd3 a5 13. Bc2 Rhd8 14. h3 Nb6 15. Rhd1 Rxd2 16. Rxd2 a4 17. Ne1 axb3 18. axb3 Nd7 19. Nd3 Bd4 20. Na4 Bxb2+ 21. Naxb2 Nf7 22. Na4 b6 23. f4 exf4 24. Nxf4 Re8 25. Nc3 Nfe5 26. Nce2 Bf7 27. Nd4 Ng6 28. g3 Nc5 29. Nf5 Nxf4 30. gxf4 Nxe4 31. Nxg7 Nxd2 32. Nxe8+ Bxe8 33. Kxd2 h6 34. Ke3 Kd6 35. Kd4 Bd7 36. h4 Bg4 37. b4 c5+ 38. bxc5+ bxc5+ 39. Ke3 Be6 40. Bd3 Bf7 41. Kf3 Be6 42. Ke3 Kc7 43. Kf3 Kb6 44. f5 Bf7 45. Kg4 Ka5 46. Be2 Kb4 47. Bf1 Kc3 48. Kf4 Bxc4 49. Bxc4 Kxc4 50. Kg4 Kd5 51. Kh5 c4 52. Kxh6 c3 53. h5 c2 54. Kg7 c1=Q 55. h6 Qg5+ 56. Kh7 Ke5 0-1
2025.03.18 Titled Tue 18th Mar Late
146255 Ashraf, Artin (2407) Koellner, Ruben Gideon (2495) 1-0
1. d4 d6 2. e4 Nf6 3. Bd3 e5 4. c3 Nbd7 5. Ne2 d5 6. exd5 Nxd5 7. O-O Be7 8. Nd2 O-O 9. Nf3 exd4 10. Nexd4 N7f6 11. h3 Bc5 12. Bg5 h6 13. Bh4 Qd6 14. Bg3 Qb6 15. Qc2 Nh5 16. Bh2 Nhf4 17. Be4 c6 18. Rad1 Re8 19. Rfe1 Bd7 20. Nb3 Bxh3 21. Bxd5 Nxg2 22. Rxe8+ Rxe8 23. Bc4 Bf8 24. Qg6 Re7 25. Ne5 Nh4 26. Bxf7+ Kh8 27. Qh5 Rxe5 28. Bxe5 Qb5 29. Qxh6# 1-0
2025.03.18 Titled Tue 18th Mar Late
146334 Koellner, Ruben Gideon (2495) Badacsonyi, Stanley (2334) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 a5 6. b5 c5 7. bxc6 Nxc6 8. a4 O-O 9. c3 Bf5 10. Ba3 Re8 11. Bb5 Rc8 12. O-O Nd7 13. Qb3 e5 14. Qxd5 Be6 15. Qe4 exd4 16. cxd4 Nb4 17. Bxb4 axb4 18. Qxb7 Nf6 19. Bxe8 Qxe8 20. Qxb4 Bd5 21. a5 g5 22. Nxg5 Bh6 23. Ngf3 Kg7 24. Rfe1 Ne4 25. Nxe4 Qxe4 26. Qd6 Re8 27. a6 Re6 28. Qg3+ Rg6 29. Qe5+ Qxe5 30. Nxe5 Rxg2+ 31. Kf1 Rxh2 32. Ke2 Bg5 33. a7 Ba8 34. Rg1 f6 35. Nf3 Rh5 36. Nxg5 fxg5 37. Ra5 h6 38. Rb1 g4 39. Rxh5 1-0
2025.03.18 Titled Tue 18th Mar Late
146528 Sarana, A (2689) Koellner, Ruben Gideon (2495) 1-0
1. d4 d6 2. c4 e5 3. d5 f5 4. e4 fxe4 5. Nc3 Nf6 6. Nge2 Be7 7. Ng3 Nbd7 8. Ncxe4 O-O 9. Bd3 Nxe4 10. Nxe4 Nf6 11. Ng3 c6 12. dxc6 bxc6 13. O-O d5 14. cxd5 cxd5 15. Bc2 Be6 16. Bb3 Qd7 17. Re1 Ng4 18. Be3 Kh8 19. h3 Nxe3 20. Rxe3 Bc5 21. Re2 e4 22. Rc1 Bb6 23. Qe1 Qf7 24. Rc6 Rad8 25. Kh2 Bd7 26. Rcc2 Bb5 27. Rxe4 Bxf2 28. Qc3 Qd7 29. Rg4 d4 30. Qb4 d3 31. Rd2 Be1 32. Ne4 Bxd2 33. Qxd2 Qc7+ 34. Ng3 Qe5 35. Re4 Qf6 36. Qb4 Bc6 37. Rg4 d2 38. Bd1 g6 39. Qc5 Qd6 40. Qc3+ Qf6 41. Qc5 Rd5 42. Qb4 Rb5 43. Qa3 Rxb2 44. Rd4 1-0
2025.03.18 Titled Tue 18th Mar Late
146702 Koellner, Ruben Gideon (2495) George, Kevin (2288) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 Nc6 5. c3 d5 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 Ne5 11. Nxe5 Bxe5 12. a3 h6 13. Nf3 Bd6 14. c4 dxc4 15. Bxc4 Be7 16. Rc1 Bd7 17. b5 Rc8 18. Qb3 Qb6 19. Rfd1 Rfd8 20. Bd4 Qa5 21. a4 Be8 22. Bf1 Nd5 23. h3 Nb6 24. Rxc8 Rxc8 25. Ra1 Nd5 26. Ne5 b6 27. Nc4 Qb4 28. Qxb4 Nxb4 29. Rb1 Nc2 30. Be5 Na3 31. Nxa3 Bxa3 32. Bd3 Kf8 33. Rb3 Be7 34. Rc3 Rxc3 35. Bxc3 Bd6 36. f4 f6 37. Kf2 Ke7 38. Kf3 Bc5 39. g4 Kd6 40. e4 e5 41. fxe5+ fxe5 42. Bc4 Bd7 43. Bd5 Be6 44. Bxe6 Kxe6 45. Ke2 Kd6 46. Kd3 Bg1 47. Kc4 Be3 48. Bb4+ Ke6 49. Kd3 Bg1 50. Bd2 Kd6 51. Kc4 Bf2 52. Bb4+ Ke6 53. Bf8 Kf7 54. Bd6 Ke6 55. Bb8 Kd7 56. Kd5 Bc5 57. Bxe5 g5 58. Bg7 Be3 59. Bxh6 Ke7 60. Bg7 Kf7 61. Be5 Ke7 62. Bb8 Kd7 63. Bxa7 Kc8 64. a5 Kb7 65. Bxb6 Bxb6 66. axb6 Kxb6 67. e5 Kxb5 68. e6 Kb6 69. e7 Kc7 70. e8=Q Kb6 71. Qc6+ Ka5 72. Qb7 Ka4 73. Ke5 Ka3 74. Kf5 Ka2 75. Kxg5 Ka1 76. h4 Ka2 77. h5 Ka1 78. h6 Ka2 79. Kf6 Ka1 80. h7 Ka2 81. h8=Q Ka1 82. Qhb8 Ka2 83. g5 Ka1 84. g6 Ka2 85. Kf7 Ka1 86. g7 Ka2 87. g8=Q Ka1 88. Qgc8 Ka2 89. Qcc7 Ka1 90. Qcb6 Ka2 91. Ke6 Ka1 92. Kd5 Ka2 93. Kc4 Ka1 94. Kc3 Ka2 95. Kc2 Ka1 96. Qf8 Ka2 97. Qbe7 Ka1 98. Qbd6 Ka2 99. Qee6+ Ka1 100. Qff6# 1-0
2025.03.18 Titled Tue 18th Mar Late
146740 Koellner, Ruben Gideon (2495) Erigaisi, Arjun (2777) 0-1
1. d4 e6 2. Nf3 b6 3. e4 Bb7 4. Nbd2 Nf6 5. Bd3 d5 6. e5 Nfd7 7. c3 c5 8. O-O Be7 9. h4 Qc8 10. h5 Ba6 11. Qe2 Bxd3 12. Qxd3 Qa6 13. Qe3 Nc6 14. h6 gxh6 15. Qxh6 Qd3 16. Qf4 Rg8 17. Re1 h5 18. Qe3 Qg6 19. g3 cxd4 20. Nxd4 Ncxe5 21. N2f3 Ng4 22. Qe2 h4 23. Bf4 hxg3 24. fxg3 Rh8 25. Kg2 Ngf6 26. Nxe6 fxe6 27. Qxe6 Rh7 28. Nh4 Qg4 29. Nf5 Kd8 30. Rh1 Nh5 31. Raf1 Rc8 32. Qxd5 Nf6 33. Qd3 Rxh1 34. Rxh1 Nh5 35. Nxe7 Nxf4+ 36. Kf2 Nxd3+ 37. Ke3 Qxg3+ 38. Kd4 Kxe7 39. Rh7+ Kd6 40. Rh6+ Kc7 41. Rh7 Re8 42. Rxd7+ Kxd7 43. Kc4 Nxb2+ 44. Kb3 Nd1 45. Ka4 Nxc3+ 46. Kb4 Re4+ 47. Ka3 Nb5+ 48. Kb2 Re2+ 49. Kc1 Qe1# 0-1
2025.02.25 Titled Tue 25th Feb Early
162986 Sargissyan, S (2267) Koellner, Ruben Gideon (2486) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. dxe5 dxe5 10. Nh4 g6 11. Qe2 Nf8 12. h3 Be6 13. f4 exf4 14. e5 Nh5 15. Bxe6 Bxh4 16. Bg4 Bxe1 17. Qxe1 Ne6 18. b3 O-O-O 19. Bb2 Kb8 20. Ne4 Ng3 21. Nxg3 fxg3 22. Qxg3 h5 23. Bxe6 fxe6 24. Qxg6 Qe7 25. Rf1 Rdg8 26. Qf6 Qd7 27. Ba3 Qd5 28. Bd6+ Ka8 29. Qf3 Qd4+ 30. Kh2 a6 31. c3 Qb6 32. b4 Rh7 33. a5 Qd8 34. c4 Rhg7 35. Rf2 b6 36. Qf6 bxa5 37. Qxe6 axb4 38. Bxb4 Qc8 39. Qd6 Qc7 40. Qxc7 Rxc7 41. e6 Re8 42. e7 c5 43. Rf8 Rxe7 44. Rxe8+ Rxe8 45. Bxc5 Rc8 46. Be7 Rxc4 47. Kg3 Kb7 48. Kf3 Kc6 49. g4 hxg4+ 50. hxg4 Kd5 51. g5 Ke6 52. Bf6 Kf5 53. Ke3 a5 54. Kd3 Rc7 55. Bc3 a4 56. Kc2 Kxg5 57. Kb2 Rb7+ 58. Ka2 Rb3 59. Bd4 Kf5 60. Bg7 Ke4 61. Bh8 Kd5 62. Bg7 Kc4 63. Bh8 Kb4 64. Bg7 Rf3 65. Bh8 Rf2+ 66. Ka1 Kb3 0-1
2025.02.25 Titled Tue 25th Feb Early
163311 Koellner, Ruben Gideon (2486) Dudkina, Uliana (2005) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. c3 Nc6 5. Nbd2 Bg4 6. dxc5 e6 7. b4 a5 8. Bb5 Be7 9. Bb2 O-O 10. Bxc6 bxc6 11. O-O Qb8 12. Qb3 e5 13. h3 Bh5 14. a3 Bxf3 15. Nxf3 Bxc5 16. Nxe5 Qxe5 17. bxc5 Rfb8 18. Qc2 Ne4 19. Rab1 Nxc5 20. c4 Qe4 21. Qc3 f6 22. cxd5 Na4 23. Qxc6 Ra7 24. Bd4 Rxb1 25. Qc8+ Kf7 26. Qe6+ Qxe6 27. dxe6+ Kxe6 28. Rxb1 Rd7 29. Rb5 Rd5 30. Rb7 Rd7 31. Rb8 Rd5 32. Ra8 Kf7 33. Ra7+ Kg6 34. Rc7 Rb5 35. Ra7 Nc5 36. Bxc5 Rxc5 37. g4 h5 38. Kg2 hxg4 39. hxg4 Kh6 40. Kg3 g6 41. Ra6 Kg7 42. Ra7+ Kh6 43. Rf7 Rc6 44. a4 Rc4 45. Rxf6 Rxa4 46. Ra6 Ra1 47. f4 Kg7 48. g5 a4 49. Kf3 a3 50. Ke4 a2 51. Ra7+ Kf8 52. Ke5 Re1 53. Rxa2 Rxe3+ 54. Kf6 Rf3 55. Ra8# 1-0
2025.02.25 Titled Tue 25th Feb Early
163546 Paikens, Reinis (2202) Koellner, Ruben Gideon (2486) 0-1
1. c4 d6 2. Nc3 e5 3. g3 Nf6 4. Bg2 Be7 5. e4 O-O 6. Nge2 c5 7. O-O Nc6 8. h3 Be6 9. d3 Nd4 10. Kh2 h6 11. f4 Rb8 12. f5 Bd7 13. a4 Bc6 14. Nxd4 cxd4 15. Nd5 Bxd5 16. exd5 a5 17. g4 Nd7 18. b3 Bg5 19. Bxg5 hxg5 20. Qd2 f6 21. Kg3 Kf7 22. Rh1 Rh8 23. h4 gxh4+ 24. Rxh4 Rxh4 25. Kxh4 Qb6 26. b4 Qxb4 27. Qxb4 axb4 28. Rb1 Nc5 29. Be4 b3 30. g5 Ra8 31. g6+ Kg8 32. Kg4 Rxa4 33. Bf3 Ra2 34. Kg3 b2 35. Bd1 Ra1 36. Bc2 Rxb1 37. Bxb1 Na4 0-1
2025.02.25 Titled Tue 25th Feb Early
164155 Esipenko, Andrey (2695) Koellner, Ruben Gideon (2486) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. a4 Be7 6. a5 c6 7. Be2 h6 8. O-O Qc7 9. d5 a6 10. Be3 cxd5 11. exd5 O-O 12. Nd2 Nc5 13. Nc4 Bf5 14. Nb6 Rad8 15. Ra3 Ncd7 16. h3 Rde8 17. Nc4 Nc5 18. Qd2 Nce4 19. Nxe4 Bxe4 20. Bb6 Qc8 21. Ne3 Qd7 22. c4 Rc8 23. b4 Bg6 24. Bf3 Qe8 25. c5 e4 26. Be2 Nd7 27. c6 bxc6 28. Bxa6 Nxb6 29. axb6 Rb8 30. dxc6 Qxc6 31. Nd5 Bg5 32. Qxg5 hxg5 33. Ne7+ Kh7 34. Nxc6 Rxb6 35. b5 Ra8 36. Rd1 Rxb5 37. Bxb5 Rxa3 38. Rxd6 Ra1+ 39. Kh2 Ra2 40. Kg3 Ra3+ 41. Kh2 Ra2 42. Ne7 Rxf2 43. Nxg6 fxg6 44. Re6 Rf4 45. Bc6 g4 46. Bxe4 gxh3 47. Bxg6+ Kh6 48. Kxh3 Kg5 49. Be4 Rf7 50. Rg6+ Kf4 51. Bf3 Rf8 52. Kh4 Rh8+ 53. Bh5 Rh7 54. g4 Ke5 55. Kg5 Ke4 56. Re6+ Kd5 57. Re7 Kd6 58. Ra7 Rh8 59. Rxg7 Ke5 60. Kg6 Ke6 61. Rh7 Rg8+ 62. Rg7 Ra8 63. g5 Rh8 64. Rh7 Rg8+ 65. Rg7 Rh8 66. Bg4+ Kd6 67. Rf7 Rg8+ 68. Kf6 Rh8 69. g6 Rh4 70. Bf5 Rh8 71. g7 Rg8 72. Rf8 Rxg7 73. Kxg7 Ke7 74. Rf7+ Kd6 75. Kf6 Kd5 76. Rd7+ Kc5 77. Ke5 Kc4 78. Rc7+ Kb3 79. Kd4 Kb2 80. Rb7+ Kc1 81. Ke3 Kd1 82. Rb1# 1-0
2025.02.25 Titled Tue 25th Feb Early
164378 Koellner, Ruben Gideon (2486) Slugin, S (2336) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O c5 7. dxc5 dxc5 8. Qe2 Nc6 9. c3 Qc7 10. Re1 b6 11. e5 Ng4 12. e6 f5 13. h3 Nf6 14. Ng5 Bb7 15. Ndf3 Na5 16. Bd3 Nd5 17. Bc2 c4 18. Bd2 b5 19. a3 Nc6 20. Rad1 Nf6 21. Nf7 Nd8 22. N3g5 Qc6 23. f3 Nh5 24. Nxd8 Raxd8 25. Nf7 Rd5 26. Bg5 Bf6 27. Rxd5 Qxd5 28. Rd1 Qc5+ 29. Be3 Qc6 30. Bh6 Re8 31. Bg5 Bc8 32. Bxf6 exf6 33. Rd6 Qc5+ 34. Kh2 Nf4 35. Qd2 Nxe6 36. Rd5 Qc7+ 37. Nd6 Bb7 38. Kg1 Rd8 39. Nxb7 Rxd5 40. Qxd5 Qb6+ 41. Kf1 1-0
2025.02.25 Titled Tue 25th Feb Early
164811 Koellner, Ruben Gideon (2486) Salem, AR (2631) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 a5 6. b5 c5 7. bxc6 Nxc6 8. a4 Bf5 9. c3 O-O 10. Ba3 Re8 11. Bb5 Ne4 12. Nxe4 Bxe4 13. O-O Rc8 14. Nd2 Bf5 15. Qb3 e5 16. Rac1 h5 17. Rfd1 Bg4 18. Re1 h4 19. h3 Bf5 20. Red1 Be6 21. Bf1 Rc7 22. Qb6 Qc8 23. Nf3 e4 24. Nh2 Bf8 25. Bxf8 Rxf8 26. Rb1 f5 27. Bb5 f4 28. Bxc6 Rxc6 29. Qxb7 fxe3 30. fxe3 Rxc3 31. Qxc8 Rfxc8 32. Nf1 R3c4 33. Rb6 Bf5 34. Ra1 Rc2 35. Rb5 Re2 36. Rc5 Rb8 37. Rb5 Rc8 38. Rc5 Rxc5 39. dxc5 Rc2 40. Rb1 Rxc5 41. Rb7 Rc4 42. Rb5 Rxa4 43. Rxd5 Ra2 44. Nd2 a4 45. Nc4 Rc2 46. Rd8+ Kg7 47. Na3 Rc3 48. Nb5 Rxe3 49. Ra8 Rb3 50. Nd4 Rb4 51. Nc6 Rc4 52. Ne5 Rc5 53. Ng4 Bxg4 54. hxg4 e3 55. Kf1 Rc4 56. g5 Rg4 57. Ra7+ Kf8 58. Ra5 Kf7 59. Ke2 Rxg2+ 60. Kxe3 a3 61. Kf3 Rg3+ 62. Kf4 Rb3 63. Ra7+ Kf8 64. Ra8+ Ke7 65. Ra7+ Kd8 66. Ra8+ Kc7 67. Ra7+ Kb6 68. Ra8 Kb7 69. Rd8 h3 70. Rd2 Rb2 71. Rd1 h2 72. Kg3 a2 73. Ra1 Rb1 74. Rxa2 h1=Q 75. Rf2 Rb3+ 76. Kf4 Qh4+ 77. Ke5 Qxf2 78. Ke6 Qf5+ 79. Ke7 Kc7 80. Ke8 Re3# 0-1
2025.02.25 Titled Tue 25th Feb Early
165086 Ternault, M (2294) Koellner, Ruben Gideon (2486) 1-0
1. d4 d6 2. Nf3 Nf6 3. Bg5 Nbd7 4. Nbd2 e5 5. dxe5 Nxe5 6. g3 Be7 7. Bg2 O-O 8. O-O h6 9. Bf4 Nxf3+ 10. Nxf3 d5 11. Ne5 c6 12. c4 Be6 13. Qc2 dxc4 14. Rfd1 Qb6 15. Nxc4 Qc5 16. Rac1 Rfd8 17. Be3 Qh5 18. b3 Ng4 19. h3 Nxe3 20. Nxe3 Bxh3 21. Bxh3 Qxh3 22. Nf5 Bf8 23. Qe4 Re8 24. Qf3 g6 25. Ne3 Qe6 26. Rd3 Rad8 27. Rcd1 Rxd3 28. Rxd3 h5 29. Kg2 Qe4 30. Rd7 Qxf3+ 31. Kxf3 Re7 32. Rd8 Kg7 33. Nc4 Rc7 34. e4 b5 35. Ne3 Bc5 36. Ng2 Be7 37. Rb8 Bc5 38. Rd8 Bb6 39. Nf4 Ba5 40. Ke2 Bc3 41. Kf3 Be5 42. Nd3 Bf6 43. Rb8 Bd4 44. Ke2 Kf6 45. f4 Ke7 46. e5 Bb6 47. Nb4 Ke6 48. Re8+ Kd7 49. Rf8 Ke7 50. Rb8 Ke6 51. Kf3 c5 52. Na6 Rd7 53. Rc8 Kd5 54. Rf8 Kd4 55. Nb8 Rc7 56. Na6 c4 57. Nxc7 Bxc7 58. bxc4 bxc4 59. Rxf7 Bb6 60. Rf8 c3 61. Ke2 Ba5 62. Rc8 Bb4 63. e6 Kd5 64. Rb8 Bd6 65. Rb7 Bc5 66. Rc7 Bd6 67. Rd7 Kxe6 68. Rxa7 Kf5 69. Kd3 Kg4 70. Ra6 1-0
2025.02.25 Titled Tue 25th Feb Early
165112 Koellner, Ruben Gideon (2486) Gales, Randi-Ioan (2247) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. Nbd2 Nc6 5. c3 Bg4 6. dxc5 e5 7. h3 Bh5 8. b4 e4 9. g4 Nxg4 10. hxg4 Bxg4 11. Qa4 Bxf3 12. Nxf3 exf3 13. Bb2 Be7 14. O-O-O O-O 15. c4 d4 16. exd4 a5 17. b5 Bg5+ 18. Kb1 Ne5 19. dxe5 Qe7 20. Qc2 Rad8 1-0
2025.02.25 Titled Tue 25th Feb Early
165433 Budrewicz, K (2185) Koellner, Ruben Gideon (2486) 0-1
1. Nf3 d6 2. d4 Nf6 3. c4 g6 4. Nc3 Bf5 5. Nh4 Bd7 6. e4 e5 7. d5 Nxe4 8. Nxe4 Qxh4 9. Bd3 h6 10. O-O f5 11. Ng3 Bg7 12. f4 e4 13. Be2 O-O 14. Rb1 a5 15. Be3 Na6 16. b3 b6 17. a3 Qf6 18. b4 axb4 19. axb4 Qc3 20. Bd2 Qd4+ 21. Kh1 Ba4 22. Qc1 Nb8 23. Re1 Nd7 24. Nf1 Nf6 25. Ne3 Nh7 26. g4 Bd7 27. gxf5 Bxf5 28. Nc2 Qf2 29. Be3 Qh4 30. Rg1 Ra2 31. Qd1 Nf6 32. Nd4 Ng4 33. Rxg4 Bxg4 34. Nc2 Bf3+ 35. Bxf3 exf3 36. Rc1 Qh3 37. Qg1 Qf5 38. Nd4 Bxd4 39. Bxd4 Rg2 40. Qe3 Qh3 41. Qe6+ Qxe6 42. dxe6 Rxf4 43. Be3 Re4 44. Bxh6 Rxe6 45. Rf1 Rc2 0-1
2025.02.25 Titled Tue 25th Feb Early
166050 Koellner, Ruben Gideon (2486) Deac, Bogdan-Daniel (2692) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 a6 4. Nbd2 Bf5 5. Ne5 h6 6. g4 Bc8 7. h3 e6 8. Bd3 c5 9. c3 Nc6 10. f4 Bd6 11. O-O Qc7 12. Qf3 Bd7 13. Qg2 Rf8 14. h4 Ng8 15. g5 hxg5 16. hxg5 g6 17. Ndf3 O-O-O 18. Bd2 Nge7 19. Kf2 Nf5 20. Rh1 Qb6 21. Rab1 Kb8 22. Ke2 cxd4 23. exd4 Bxe5 24. fxe5 Rh8 25. b3 Nce7 26. Kf2 Qa5 27. a4 Qb6 28. Bc2 Nc6 29. Rxh8 Rxh8 30. Rh1 Qd8 31. Rxh8 Qxh8 32. Qh2 Qe8 33. Nh4 Ka8 34. Nxf5 exf5 35. Qh7 Be6 36. Qg7 Qe7 37. Qh8+ Ka7 38. b4 Qc7 39. Bd3 Ne7 40. Qe8 Nc8 41. b5 a5 42. Qf8 Nb6 43. Qa3 Kb8 44. Ke1 Nc4 45. Bxc4 Qxc4 46. b6 Qc6 47. Qd6+ Qxd6 48. exd6 Kc8 49. c4 dxc4 50. Bxa5 Bd7 51. Kd2 Bxa4 52. Kc3 Bb5 53. d5 Kd7 54. Bb4 f4 55. Bc5 f3 56. Kb4 Ba6 57. Kc3 Bb5 58. Kb4 Ba6 59. Kc3 Kc8 60. Kb4 Bb5 61. Kc3 Kd8 62. Kb4 Ke8 63. Kc3 f6 64. gxf6 g5 65. Kb4 g4 66. Kxb5 c3 67. d7+ Kxd7 68. f7 c2 69. f8=Q c1=Q 70. Qe7+ 1-0
2025.01.21 Titled Tue 21st Jan Early
204325 Ruiz Aguilar, P (2200) Koellner, Ruben Gideon (2484) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. O-O-O+ Nd7 8. Nf3 Bd6 9. Bb5 Kc8 10. Bxd7+ Nxd7 11. Be3 f6 12. h3 Bc5 13. Bxc5 Nxc5 14. Rhe1 c6 15. b4 Nd7 16. a4 Kc7 17. b5 Nc5 18. bxc6 bxc6 19. Kd2 Rab8 20. Rb1 a5 21. Ke3 Rb4 22. Nd2 Rd8 23. f3 Rdd4 24. h4 Nxa4 25. Rxb4 Rxb4 26. Nxa4 Rxa4 27. Rb1 Ra3+ 28. Ke2 Rc3 29. Rb2 a4 30. Nb1 Rc5 31. Kd2 Rb5 32. Rxb5 cxb5 33. Kc3 Bc4 34. g3 Be2 35. f4 Kc6 36. Kb4 Bd1 37. c3 Bc2 38. Nd2 Bd3 39. fxe5 fxe5 40. Nf3 Kd6 41. Nd2 h5 42. c4 Bxc4 43. Nxc4+ bxc4 44. Kxc4 a3 45. Kb3 Kc5 46. Kxa3 Kd4 47. Kb4 Kxe4 48. Kc5 Kf3 49. Kd5 e4 50. Kd4 e3 51. Kd3 e2 52. Kd2 Kf2 53. Kd3 e1=Q 54. Kd4 Qe3+ 55. Kd5 Kxg3 56. Kd6 Kxh4 57. Kd7 Kg5 58. Kc6 h4 59. Kb7 h3 60. Kc6 h2 61. Kb5 h1=Q 62. Kc4 Qd1 63. Kb4 Qec1 64. Ka5 Qdc2 65. Kb6 Q2b2+ 66. Ka7 Qcb1 67. Ka8 Kf4 68. Ka7 g5 69. Ka6 g4 70. Ka5 g3 71. Ka4 Kf3 72. Ka5 Kf2 73. Ka6 g2 74. Ka7 g1=Q 75. Ka8 Qgc1 76. Ka7 Ke3 77. Ka6 Kd4 78. Ka5 Kc5 79. Ka4 Kc6 80. Ka5 Kc7 81. Ka6 Qc4+ 82. Ka7 Qbd4+ 83. Ka8 Qbe4# 0-1
2025.01.07 Titled Tue 7th Jan Early
221083 Koellner, Ruben Gideon (2484) Tiarks, Jann-Christian (2236) 1/2-1/2
1. d4 Nf6 2. Nf3 c5 3. e3 cxd4 4. exd4 d5 5. c3 Nc6 6. Nbd2 Bf5 7. Bb5 a6 8. Bxc6+ bxc6 9. Qa4 Bd7 10. Ne5 e6 11. O-O c5 12. Nxd7 Qxd7 13. Qd1 cxd4 14. cxd4 Bd6 15. Nf3 O-O 16. Be3 Ne4 17. Qd3 Rfc8 18. Rfc1 Qb5 19. Qxb5 axb5 20. a3 f6 21. Kf1 Kf7 22. Nd2 Nxd2+ 23. Bxd2 h5 24. Ke2 Bxh2 25. g3 h4 26. Kf3 hxg3 27. fxg3 Rh8 28. Kg2 Rh5 29. Rc7+ Kg6 30. Rh1 Bxg3 31. Rxg7+ Kxg7 32. Rxh5 Bd6 33. Rh3 Rc8 34. Bc3 Rg8 35. Kf2 Kf7 36. Bd2 Rg4 37. Rb3 Rxd4 38. Be3 Rc4 39. Rxb5 d4 40. Bd2 e5 41. Ke2 e4 42. b3 Rc2 43. Rd5 Bxa3 44. Rd7+ Ke6 45. Rxd4 f5 46. Kd1 Rb2 47. b4 Rb3 48. Kc2 Rh3 49. b5 Bc5 50. Rd8 e3 51. Bc3 f4 52. Re8+ Kd5 53. Kd3 e2+ 54. Kd2 f3 55. Re5+ Kc4 56. Re4+ Kxb5 57. Rf4 Rh1 58. Kd3 f2 59. Kxe2 Rc1 60. Bd2 Rc2 61. Kd3 Ra2 62. Rf5 Kc6 63. Rf6+ Kd5 64. Rf5+ Ke6 65. Rf3 Ra1 66. Ke2 Kd5 67. Rf5+ Ke4 68. Rf4+ Ke5 69. Rf7 Ke6 70. Rf3 Bd4 71. Rf4 Ke5 72. Rf8 Ke4 73. Re8+ Be5 74. Rf8 Kd5 75. Rf3 Bd4 76. Rf5+ Ke4 77. Rf4+ Kd5 78. Rf8 Ke4 79. Re8+ Kd5 80. Rd8+ Ke4 81. Re8+ 1/2-1/2
2025.01.07 Titled Tue 7th Jan Late
224397 Koellner, Ruben Gideon (2484) Xia, Joshua (1975) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 c6 7. a4 a5 8. b5 cxb5 9. cxb5 b6 10. Ba3 Bf5 11. Ne5 Qc7 12. Rc1 Qb7 13. Be2 Rd8 14. O-O Bf8 15. Qb3 Ne4 16. Nxe4 Bxe4 17. Rc3 f6 18. Nc6 Nxc6 19. bxc6 Qc7 20. Rfc1 Bf5 21. Bf3 Be6 22. e4 Bf7 23. exd5 Rac8 24. Re3 Bh6 25. Rxe7 Qf4 26. Rce1 Qxd4 27. Rxf7 Kxf7 28. d6+ Kg7 29. d7 Bd2 30. Rd1 Rxd7 31. cxd7 Qxd7 32. Qa2 Re8 33. g3 Re1+ 34. Rxe1 Bxe1 35. Kg2 Bb4 36. Bxb4 axb4 37. Qb3 Qd4 38. Qd5 Qc3 39. Qb7+ Kh6 40. Qxb6 b3 41. Qe3+ Qxe3 42. fxe3 b2 43. Be4 Kg5 44. Bb1 f5 45. a5 Kf6 46. a6 Ke7 47. a7 1-0
2025.01.07 Titled Tue 7th Jan Late
224593 Dumanuly, Sultanbeibarys (2252) Koellner, Ruben Gideon (2484) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. a5 Qc7 9. Re1 Nf8 10. h3 g5 11. b3 Ng6 12. d5 g4 13. hxg4 Bxg4 14. a6 b5 15. Be2 b4 16. Na4 cxd5 17. exd5 Rc8 18. Nd4 Bxe2 19. Nxe2 Qxc2 20. Qxc2 Rxc2 21. Be3 Nxd5 22. Bxa7 Kd7 23. Nb6+ Nxb6 24. Bxb6 Ra8 25. Ng3 Rc6 26. Be3 Rcxa6 27. Rad1 Ke6 28. Bxh6 Ra3 29. Rd3 Ra1 30. Rxa1 Rxa1+ 31. Kh2 d5 32. f3 Rb1 33. Bd2 Bd6 34. Kh3 Rd1 35. Kg4 Nf4 36. Bxf4 Rxd3 37. Bg5 Rxb3 38. Nf5 Rb1 39. f4 b3 40. Ng7+ Kd7 41. Bf6 exf4 0-1
2025.01.07 Titled Tue 7th Jan Late
225001 Sarana, A (2677) Koellner, Ruben Gideon (2484) 1-0
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O Nb6 7. Bd3 Nfd7 8. a4 a5 9. Be3 exd4 10. Nxd4 O-O 11. f4 Nc5 12. Qf3 Bf6 13. Rfd1 Re8 14. Ndb5 Bd7 15. e5 Nxd3 16. Rxd3 Bc6 17. Qg4 Be7 18. Bxb6 cxb6 19. Nxd6 Bxd6 20. Rxd6 Qc8 21. Qxc8 Raxc8 22. Kf2 Kf8 23. Rad1 Rc7 24. g4 g6 25. g5 Kg7 26. h4 h6 27. gxh6+ Kxh6 28. Kg3 Kg7 29. R1d4 Rcc8 30. Nd1 b5 31. axb5 Bxb5 32. Ne3 a4 33. h5 a3 34. bxa3 Rc3 35. Kf2 Rh8 36. a4 Bc6 37. Rd3 Rxd3 38. cxd3 Rxh5 39. a5 Rh2+ 40. Kg3 Ra2 41. f5 Rxa5 42. Kf4 Ra4+ 43. d4 gxf5 44. Nxf5+ Kh7 45. Kg5 Ra1 46. d5 Rg1+ 47. Kf6 Rg6+ 48. Ke7 Rxd6 49. exd6 Ba4 50. d7 Bxd7 51. Kxd7 b5 52. Nd4 b4 53. Ke7 f5 54. d6 f4 55. d7 f3 56. Nxf3 b3 57. d8=Q b2 58. Qd3+ Kh6 59. Qd6+ Kg7 60. Qf6+ Kg8 61. Qf7+ Kh8 62. Ng5 b1=Q 63. Qf8# 1-0
2025.01.07 Titled Tue 7th Jan Late
225165 Koellner, Ruben Gideon (2484) Tikhonov, Viacheslav (2183) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 a5 7. b5 c5 8. dxc5 Qc7 9. Ba3 Nbd7 10. Rc1 Nxc5 11. cxd5 b6 12. Bxc5 bxc5 13. Bc4 a4 14. O-O e6 15. dxe6 Bxe6 16. Bxe6 fxe6 17. Nc4 Rfd8 18. Qc2 Qb7 19. b6 Nd7 20. Rb1 Ra6 21. Ng5 Qd5 22. Ne4 Rb8 23. Rfd1 Qc6 24. Rd6 Qc8 25. Rxe6 Kh8 26. Ned6 Qf8 27. Qe4 Nf6 28. Qc6 Ng4 29. Qf3 Nf6 30. h3 a3 31. Rb3 Ra4 32. b7 Rb4 33. Rxa3 Rb1+ 34. Kh2 Rc1 35. Ra8 Rc2 36. Rxb8 Qxb8 37. g3 h5 38. Kg2 Kg8 39. Rxf6 Bxf6 40. Qxf6 Kh7 41. Qf7+ Kh8 42. Qe8+ Qxe8 43. Nxe8 Rxc4 44. b8=Q Kh7 45. Qc7+ 1-0
2025.01.07 Titled Tue 7th Jan Late
225446 Tustanowski, R (2220) Koellner, Ruben Gideon (2484) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. f3 Be6 7. Be3 Nbd7 8. Nge2 c6 9. Nc1 Bc5 10. Kf2 Bxe3+ 11. Kxe3 Kc7 12. Nd3 Ne8 13. Be2 f6 14. Rhd1 Nd6 15. b3 Rhd8 16. a4 a5 17. Nb2 Nb6 18. Rd2 Nf7 19. Rad1 Rxd2 20. Rxd2 h5 21. h4 g5 22. hxg5 fxg5 23. Rd1 h4 24. Nd3 Rh8 25. Nb1 Nd7 26. Nd2 Nd6 27. Nb2 Nb6 28. Bc4 Bxc4 29. Ndxc4 Ndxc4+ 30. Nxc4 Nxc4+ 31. bxc4 h3 32. gxh3 Rxh3 33. Rg1 Rh2 34. Kd3 Rf2 35. Ke3 Rxc2 36. Rxg5 Rxc4 37. Rxe5 Rxa4 38. f4 Ra3+ 39. Kd4 Ra4+ 40. Kd3 Kd6 41. Re8 b5 42. f5 Ra3+ 43. Kd2 a4 44. Ke2 Rh3 45. f6 Rh7 46. e5+ Kd7 47. Rg8 Ke6 48. Re8+ Kd7 49. Ra8 Ke6 50. Re8+ Kd7 1/2-1/2
2025.01.07 Titled Tue 7th Jan Late
225572 Koellner, Ruben Gideon (2484) Domingo Nunez, Alejandro (2316) 1-0
1. d4 g6 2. Nf3 Bg7 3. e4 c6 4. c3 d5 5. e5 f6 6. Bd3 Bg4 7. Bf4 fxe5 8. dxe5 Nd7 9. h3 Bxf3 10. Qxf3 Nxe5 11. Bxe5 Bxe5 12. O-O Nf6 13. Re1 Bd6 14. Qxf6 1-0
2025.01.07 Titled Tue 7th Jan Late
225997 Koellner, Ruben Gideon (2484) Wei Yi (2751) 0-1
1. d4 Nc6 2. Nf3 Nf6 3. d5 Nb4 4. c4 c6 5. a3 Na6 6. Nc3 cxd5 7. cxd5 d6 8. e4 Nc5 9. Nd2 a5 10. Bb5+ Bd7 11. Qe2 g6 12. O-O Bg7 13. Bxd7+ Nfxd7 14. Nb5 O-O 15. Rb1 a4 16. b4 axb3 17. Nxb3 Nxb3 18. Rxb3 Nc5 19. Rb1 Ra4 20. f3 Qa5 21. Bd2 Qa6 22. Be3 Rxa3 23. Bxc5 dxc5 24. Qc2 Ra2 25. Qxc5 h5 26. Qxe7 Rc8 27. Kh1 Bf8 28. Qg5 Rcc2 29. d6 Bxd6 30. Nxd6 Qxd6 31. Rxb7 Rf2 32. Rbb1 Qd3 33. Rg1 Qxf3 34. Rb8+ Kh7 35. Qe5 Qf6 36. Qxf6 Rxf6 37. Re8 Rff2 38. h3 h4 39. e5 Rae2 40. Re7 Kh6 41. Re8 Kg5 42. Kh2 f5 43. e6 f4 44. Kh1 Kf6 45. e7 g5 46. Ra8 Kxe7 47. Ra6 f3 48. Ra7+ Kf6 49. Ra6+ Kf5 50. Ra5+ Kg6 51. Ra6+ Kh5 52. Ra3 Rxg2 53. Rxg2 fxg2+ 54. Kg1 g4 0-1
2025.01.07 Titled Tue 7th Jan Late
226045 Karamsetty, J (2244) Koellner, Ruben Gideon (2484) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Be2 Be7 6. O-O c6 7. h3 h6 8. a4 Qc7 9. Be3 Nf8 10. Qd2 g5 11. dxe5 dxe5 12. Nh2 Ng6 13. Bc4 Kf8 14. a5 Rg8 15. Rfd1 Nf4 16. Bxf4 gxf4 17. Kh1 Nh5 18. Qe2 Nf6 19. f3 Nh5 20. Qd2 Ng3+ 21. Kg1 Bc5+ 22. Qf2 Bxf2+ 23. Kxf2 Qe7 24. Na4 h5 25. Rd2 Qb4 26. Rd8+ Kg7 27. Rxg8+ Kxg8 28. b3 Qd2+ 29. Kg1 Qd4# 0-1
2025.01.07 Titled Tue 7th Jan Late
226440 Koellner, Ruben Gideon (2484) Ziatdinov, R (2030) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 a5 11. b5 Ne7 12. a4 Ng6 13. c4 b6 14. Rc1 Bb7 15. Qe2 Qe7 16. cxd5 Nxd5 17. Nc4 Bc7 18. Be4 Rad8 19. Ba3 Qf6 20. Bxf8 Rxf8 21. Qb2 Qe7 22. Nce5 Nxe5 23. Nxe5 Qd6 24. Nf3 Bb8 25. Rfd1 Qe7 26. h3 f5 27. Bxd5 Bxd5 28. Qe2 g5 29. Nd4 g4 30. hxg4 Qh4 31. f4 fxg4 32. Qd2 e5 33. Ne2 Ba8 34. Qa2+ Kg7 35. Rd7+ Kh6 36. Qe6+ Rf6 37. Qe7 Be4 38. Qg7+ Kh5 39. Qg5+ Qxg5 40. fxg5 Kxg5 41. Ng3 Bg6 42. Rc8 Bd6 43. Rg7 Kh6 44. Rxg6+ Rxg6 45. Ne4 Bb4 46. Rc6 Kg7 47. Kf2 h5 48. Kg3 Be1+ 49. Kh2 h4 50. Kg1 g3 51. Rxg6+ Kxg6 52. Nd6 Bb4 53. Nc4 Bc5 54. Kf1 Kf5 55. Ke2 e4 56. Nd2 Ke5 57. Nc4+ Kf5 58. Nd2 Kf6 59. Nc4 Kg5 60. Nd2 Kf5 61. Nf1 Kg4 62. Nd2 h3 63. gxh3+ Kxh3 64. Nxe4 g2 65. Nxc5 g1=Q 66. Nd3 Qg2+ 67. Kd1 Qd5 68. Ke2 Qa2+ 69. Kf3 Qxa4 70. Nf4+ Kh4 71. e4 Qxb5 72. Ke3 a4 73. Nd3 a3 74. e5 a2 75. e6 a1=Q 76. e7 Qf6 77. e8=Q Qxe8+ 78. Kd2 Qd4 79. Kc2 Qe2+ 80. Kc1 Qee3+ 81. Kd1 Qdxd3# 0-1
2025.01.07 Titled Tue 7th Jan Late
226546 Slaby, Je (2464) Koellner, Ruben Gideon (2484) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nge2 Nc6 5. f3 d5 6. Nxd5 Nxd5 7. exd5 Qxd5 8. Be3 Be6 9. Nc3 Bb4 10. Qd2 exd4 11. Nxd5 Bxd2+ 12. Bxd2 Bxd5 13. O-O-O O-O-O 14. Bb5 a6 15. Bxc6 Bxc6 16. Rhe1 Rhe8 17. b3 b6 18. Bf4 f6 19. Kd2 Bd5 20. Rxe8 Rxe8 21. Re1 Be6 22. c3 dxc3+ 23. Kxc3 Kd7 24. a3 c5 25. Rd1+ Kc6 26. Rd6+ Kb7 27. b4 cxb4+ 28. axb4 Bf5 29. Kd2 h5 30. Be3 Kc7 31. Rd5 g6 32. Bf4+ Kc6 33. Rd6+ Kb5 34. Rxf6 Rd8+ 35. Rd6 Rc8 36. g4 hxg4 37. fxg4 Bxg4 38. Rxg6 Bf3 39. Be3 Rd8+ 40. Kc3 Bc6 41. Rg5+ Bd5 42. h4 Kc6 43. Rg6+ Rd6 44. Rxd6+ Kxd6 45. Bxb6 Kc6 46. Bd4 Bf3 47. Bf6 Kb5 48. Be7 a5 49. bxa5 Kxa5 50. Kd4 Kb5 51. Ke5 Bd1 52. Kf4 Kc6 53. Kg5 Kd7 54. Bf6 Ke8 55. h5 Bc2 56. h6 Kf7 57. Bg7 Kg8 58. Be5 Kh7 59. Bg7 Bb3 60. Bc3 Ba4 61. Bg7 Bb5 62. Bc3 Bc6 63. Bg7 Bd7 64. Bc3 Be8 65. Bg7 Bf7 66. Bc3 Bg6 67. Bg7 Bc2 68. Bc3 Bb1 69. Bg7 Ba2 70. Bc3 Bb3 71. Bg7 Bc4 72. Bc3 Bd3 73. Bg7 Be4 74. Bc3 Bg6 75. Bg7 Bf7 76. Bc3 Bg6 1/2-1/2
2025.01.07 Titled Tue 7th Jan Late
226742 Koellner, Ruben Gideon (2484) Ibadov, Dashgyn (2337) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. Nbd2 e6 4. e3 c5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 e5 11. e4 dxe4 12. Nxe4 Nxe4 13. Bxe4 Be6 14. a3 Rc8 15. Rc1 b5 16. Qd3 f5 17. Bd5 Qe7 18. Qxb5 a6 19. Bxe6+ Qxe6 20. Qxa6 e4 21. Ng5 Qh6 22. Nh3 Nxb4 23. Qxc8 Rxc8 24. cxb4 Rxc1 25. Bxc1 Qe6 26. g3 Qb3 27. Nf4 Bxf4 28. Bxf4 Qxa3 29. Rb1 Qa2 30. Rc1 Qb3 31. Rc8+ Kf7 32. Rb8 Ke6 33. h4 h6 34. Be3 Qd1+ 35. Kh2 g5 36. hxg5 hxg5 37. Rb6+ Kd5 38. Rb5+ Ke6 39. Rb6+ Kf7 40. Bxg5 Qh5+ 41. Bh4 Qf3 42. Kg1 e3 43. Rf6+ Kg7 44. fxe3 Qxe3+ 45. Kg2 Qe2+ 46. Kh3 Qg4+ 47. Kh2 Qe2+ 48. Kg1 Qe1+ 49. Kg2 Qe2+ 50. Kg1 Qe1+ 51. Kh2 Qe2+ 52. Kh3 Qg4+ 53. Kg2 Qe2+ 1/2-1/2
2024.11.24 Heusenstamm Schloss Open
265807 Chassard, Cedric (2283) Koellner, Ruben Gideon (2484) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nge2 Nc6 5. d5 Ne7 6. Bg5 Neg8 7. Ng3 Be7 8. Be3 c6 9. Be2 g6 10. a4 h5 11. h3 h4 12. Nf1 cxd5 13. exd5 Nh6 14. g4 hxg3 15. Nxg3 Nf5 16. Nxf5 gxf5 17. f4 Ng4 18. Bb5+ Kf8 19. Qf3 Bh4+ 20. Kd2 Nxe3 21. Qxe3 exf4 22. Qf3 Qb6 23. Qxf4 a6 24. a5 Qd8 25. Rhg1 axb5 26. Nxb5 Rxa5 27. Rxa5 Qxa5+ 28. Nc3 Qc5 29. Rg2 Bf6 0-1
2024.11.24 Heusenstamm Schloss Open
265917 Koellner, Ruben Gideon (2484) Haack, Kevin (2304) 1/2-1/2
1. d4 Nf6 2. Bg5 d5 3. Nd2 e6 4. e3 c5 5. c3 Be7 6. Bd3 Nbd7 7. f4 O-O 8. Ngf3 b6 9. Bxf6 Nxf6 10. Ne5 Bb7 11. Qf3 Rc8 12. O-O Rc7 13. Rad1 Qa8 14. f5 exf5 15. Qxf5 Bc8 16. Qf4 Bd8 17. g4 Be6 18. Qf3 Qc8 19. h3 a5 20. Qg3 Nd7 21. Ndf3 Nxe5 22. dxe5 a4 23. a3 b5 24. Qf4 Rb7 25. Bf5 g6 26. Bb1 Be7 27. Ba2 Rd8 28. Ng5 Bxg5 29. Qxg5 b4 30. cxb4 cxb4 31. Rf2 b3 32. Bb1 Rc7 33. Kg2 Rdd7 34. Bd3 d4 35. exd4 Qb7+ 36. Kg3 Qb6 37. Be4 Rxd4 38. Rxd4 Qxd4 39. Rd2 Qxe4 40. Rd8+ 1/2-1/2
2024.11.24 Heusenstamm Schloss Open
283530 Koellner, Ruben Gideon (2484) Haack, Kevin (2304) 1/2-1/2
1. d4 Nf6 2. Bg5 d5 3. Nd2 e6 4. e3 c5 5. c3 Be7 6. Bd3 Nbd7 7. f4 O-O 8. Ngf3 b6 9. Bxf6 Nxf6 10. Ne5 Bb7 11. Qf3 Rc8 12. O-O Rc7 13. Rad1 Qa8 14. f5 exf5 15. Qxf5 Bc8 16. Qf4 Bd8 17. g4 Be6 18. Qf3 Qc8 19. h3 a5 20. Qg3 Nd7 21. Ndf3 Nxe5 22. dxe5 a4 23. a3 b5 24. Qf4 Rb7 25. Bf5 g6 26. Bb1 Be7 27. Ba2 Rd8 28. Ng5 Bxg5 29. Qxg5 b4 30. cxb4 cxb4 31. Rf2 b3 32. Bb1 Rc7 33. Kg2 Rdd7 34. Bd3 1/2-1/2
2024.11.23 Heusenstamm Schloss Open
265575 Rempe, Jonas (2182) Koellner, Ruben Gideon (2484) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 O-O 7. O-O exd4 8. Nxd4 Re8 9. f4 d5 10. exd5 Nb6 11. Bb3 c6 12. Be3 Ng4 13. Bf2 Bc5 14. f5 Qg5 15. Kh1 Nxf2+ 16. Rxf2 Qf6 17. Nce2 cxd5 18. Rf3 Bd7 19. Rd3 Bc6 20. c3 Nc4 21. Qc2 Nd6 22. Nf4 Qe5 23. Nde2 Ne4 24. Nh3 Qxf5 25. Rf3 Qg6 26. Raf1 Nf6 27. Qd2 Ne4 28. Qf4 Bd6 29. Qh4 Be7 30. Qf4 Bd6 31. Qh4 Nd2 32. Nef4 Nxf3 33. gxf3 Qf5 34. Rg1 Bxf4 35. Nxf4 g6 36. Rg5 Re1+ 37. Kg2 Qb1 38. Qf2 Rae8 39. h4 Qc1 40. Nd3 Qxg5+ 41. hxg5 R1e2 0-1
2024.11.23 Heusenstamm Schloss Open
265688 Koellner, Ruben Gideon (2484) Nothnagel, Marian Can (2416) 1/2-1/2
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 O-O 5. c3 d6 6. Bc4 Nc6 7. O-O e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Qe2 Bh6 11. a4 Nh5 12. g3 Bh3 13. Rd1 Qe7 14. Nf3 Bxc1 15. Raxc1 a5 16. Rd5 Bg4 17. Qe3 Bxf3 18. Qxf3 Nf6 19. Rd3 Rfd8 20. Rcd1 Rxd3 21. Qxd3 Kg7 22. Kg2 h5 23. h4 Qc5 24. f3 Re8 25. Bb3 Re7 26. Qd8 Re8 27. Qd3 Re7 28. Qc4 Qe3 29. Qd3 1/2-1/2
2024.11.22 Heusenstamm Schloss Open
265337 Stuemer, P (2078) Koellner, Ruben Gideon (2484) 0-1
1. Nf3 d5 2. e3 Nf6 3. c4 c6 4. b3 Bf5 5. Bb2 e6 6. Be2 h6 7. O-O Nbd7 8. Nc3 Bd6 9. h3 O-O 10. Rc1 a6 11. d3 Bh7 12. Re1 e5 13. cxd5 cxd5 14. Bf1 Re8 15. a3 Qe7 16. b4 e4 17. dxe4 dxe4 18. Nd4 Rad8 19. Qb3 h5 20. Nd5 Nxd5 21. Qxd5 Ne5 22. Qb3 Bb8 23. Red1 h4 0-1
2024.11.22 Heusenstamm Schloss Open
265454 Koellner, Ruben Gideon (2484) Kersten, U (2170) 1/2-1/2
1. d4 Nf6 2. Bg5 e6 3. Nd2 c5 4. e3 cxd4 5. exd4 Be7 6. Ngf3 b6 7. c3 Bb7 8. Bxf6 Bxf6 9. Bd3 d6 10. Qe2 Nd7 11. h4 a6 12. O-O-O b5 13. Ne4 Be7 14. Neg5 Bxf3 15. Nxf3 d5 16. Kb1 b4 17. c4 dxc4 18. Bxc4 Nb6 19. d5 exd5 20. Bxd5 Nxd5 21. Qe4 O-O 22. Rxd5 Qc7 23. Rc1 Qa7 24. Ne5 Qxf2 25. Ng4 Qb6 26. Re5 Bf6 27. Rc6 Qg1+ 28. Rc1 Qb6 29. Rc6 Qg1+ 30. Rc1 1/2-1/2
2024.11.21 Heusenstamm Schloss Open
265217 Koellner, Ruben Gideon (2484) Musiienko, Platon (1947) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 Be7 5. Bd3 O-O 6. O-O Nbd7 7. Ne5 c5 8. c3 Qc7 9. f4 b6 10. g4 Bb7 11. Qf3 Ne8 12. Qh3 Ndf6 13. g5 Ne4 14. Rf3 N8d6 15. Qg4 c4 16. Bxe4 dxe4 17. Rh3 g6 18. Nf1 b5 19. Ng3 Nf5 20. Bd2 a5 21. Qe2 Bd5 22. Ng4 Bd8 23. Qg2 Qb7 24. Nf6+ Bxf6 25. gxf6 Nd6 26. Rh6 Ne8 27. Nh5 Kh8 28. Qg5 Qd7 29. Qh4 Qd8 30. Kf2 Rb8 31. Rg1 b4 32. Rg3 e5 33. Rxh7+ Kxh7 34. Ng7+ Kg8 35. Rh3 1-0
2024.10.27 Rainer Radtke Mem 2024
316534 Koellner, Ruben Gideon (2480) Petrov, Martin (2538) 1/2-1/2
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 Nbd7 5. Bd3 b6 6. e4 dxe4 7. Nxe4 Bb7 8. Nxf6+ Qxf6 9. c3 Bxf3 10. gxf3 Bd6 11. h4 Bf4 12. Be3 Rd8 13. Be4 e5 14. Qd2 Bxe3 15. fxe3 Nc5 16. O-O-O Nxe4 17. fxe4 Qc6 18. Qg2 O-O 19. Rhg1 Qh6 20. Kc2 g6 21. Qg3 Rde8 22. Rde1 f5 23. exf5 1/2-1/2
2024.10.26 Rainer Radtke Mem 2024
316510 Gumularz, Szymon (2559) Koellner, Ruben Gideon (2480) 1/2-1/2
1. c4 e5 2. d3 d6 3. g3 g6 4. Bg2 Bg7 5. Nc3 Ne7 6. Nf3 O-O 7. O-O c5 8. Rb1 Nbc6 9. a3 a5 10. Bg5 f6 11. Be3 Be6 12. Ne1 Qd7 13. Nc2 Bh3 14. b4 Bxg2 15. Kxg2 axb4 16. axb4 b6 17. f3 Nd4 18. Bd2 Nxc2 19. Qxc2 h6 20. Rb2 f5 21. Rfb1 Ra7 22. Ra2 Rfa8 23. Rba1 Ra5 24. Ra3 Rxa3 25. Ra2 1/2-1/2
2024.10.25 Rainer Radtke Mem 2024
316489 Koellner, Ruben Gideon (2480) Tarhan, Adar (2474) 1-0
1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. Nf3 Nc6 5. Nbd2 Bg4 6. c3 Qb6 7. Qb3 c4 8. Qc2 e6 9. e4 Bh5 10. e5 Bg6 11. Qc1 Nh5 12. Be3 f5 13. g3 f4 14. gxf4 Be7 15. Bh3 Nd8 16. Nf1 O-O 17. Ng3 Qb5 18. Bg4 Qe8 19. Ng5 Bxg5 20. fxg5 Nxg3 21. hxg3 Be4 22. Rh4 Nc6 23. Be2 Bg6 24. f3 b5 25. Kf2 Qe7 26. Qh1 b4 27. Qh3 bxc3 28. bxc3 Bf5 29. g4 Bg6 30. Bc1 Rab8 31. Qh1 Rb6 32. Kg3 Qf7 33. f4 Rb2 34. Bf3 Rc2 35. Qe1 Bd3 36. Rh2 Rxh2 37. Kxh2 Qc7 38. Qd2 Rb8 39. f5 Nxe5 40. dxe5 Qxe5+ 41. Qf4 Rb2+ 42. Bg2 Qxf4+ 43. Bxf4 Be4 44. Rg1 Rxa2 45. Kg3 Bxg2 46. Rxg2 Rxg2+ 47. Kxg2 exf5 48. gxf5 a5 49. Kf3 a4 50. Bc1 Kf7 51. Kf4 h5 52. Kg3 g6 53. fxg6+ Kg7 54. Kh3 Kxg6 55. Kh4 d4 56. cxd4 c3 57. d5 Kf5 58. d6 Ke6 59. g6 Kd5 1-0
2024.10.24 Rainer Radtke Mem 2024
316452 Koellner, Ruben Gideon (2480) Prazak, Daniel (2290) 1-0
1. d4 d5 2. Nf3 Nf6 3. c3 Bf5 4. Qb3 Qc8 5. c4 e6 6. cxd5 exd5 7. Nc3 c6 8. Bf4 Be7 9. Rc1 O-O 10. e3 Nbd7 11. h3 Nb6 12. a4 Nbd7 13. g4 Be6 14. Bd3 c5 15. Qd1 c4 16. Bb1 Qc6 17. Ng5 Bb4 18. O-O h6 19. Nxe6 fxe6 20. h4 Bd6 21. Bxd6 Qxd6 22. g5 Ne8 23. f4 hxg5 24. hxg5 Kf7 25. e4 Rh8 26. e5 Qe7 27. g6+ Kf8 28. Kg2 Nc7 29. Qg4 Ke8 30. Rh1 Rxh1 31. Rxh1 Nf8 32. f5 exf5 33. Bxf5 Qb4 34. Qf3 Qxb2+ 35. Kg3 Qd2 36. Rh8 Ke7 37. Rg8 Qxd4 38. Nxd5+ Nxd5 39. Qa3+ Kd8 40. Rxf8+ Kc7 41. Qd6# 1-0
2024.10.24 Rainer Radtke Mem 2024
316470 Stremavicius, Pijus (2346) Koellner, Ruben Gideon (2480) 0-1
1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. Nf3 Nbd7 5. O-O exd4 6. Nxd4 g6 7. Bg5 Bg7 8. c3 O-O 9. Nd2 Re8 10. f4 Nc5 11. Bc2 Qd7 12. Qf3 Qg4 13. Nb5 Qxf3 14. Rxf3 Na6 15. a4 Bg4 16. Rf2 Bd7 17. h3 Bxb5 18. axb5 Nc5 19. Re1 a6 20. f5 gxf5 21. Rxf5 Nfd7 22. bxa6 Rxa6 23. Ref1 Ra2 24. Bd1 f6 25. Be3 Rxb2 26. Nc4 Rb1 27. Nd2 Rc1 28. Bd4 Kf8 29. g4 h6 30. Bf3 Rxf1+ 31. Kxf1 Ne5 32. Be2 Ra8 33. Bxc5 dxc5 34. Nc4 Nxc4 35. Bxc4 b6 36. Rd5 Ra4 37. Bb5 Rxe4 38. Rd8+ Kf7 39. Rd7+ Re7 40. c4 Rxd7 41. Bxd7 Ke7 42. Bc8 Kd6 43. Ke2 Ke5 44. Ke3 h5 45. gxh5 Bh6+ 46. Kd3 f5 47. Bd7 f4 48. Bc6 Kf5 49. Ke2 Kg5 50. Kf3 Kf5 51. Ke2 Kg5 52. Kf3 Kxh5 53. Bd7 Kh4 54. Kg2 Kg5 55. Kf3 Kf6 56. Ke4 Ke7 57. Bc6 Kd6 58. Be8 Bg5 59. Ba4 c6 60. h4 Bh6 61. h5 Bg5 62. Kd3 f3 63. Bd1 f2 64. Ke2 b5 65. Kxf2 Ke5 66. Bg4 Kd4 67. Be6 b4 68. Ke2 b3 69. Kd1 Kc3 70. Bf7 Bh6 71. Be6 Kb4 72. Bf7 Ka3 0-1
2024.10.23 Rainer Radtke Mem 2024
316438 Polster, Christian (2265) Koellner, Ruben Gideon (2480) 0-1
1. e4 e5 2. Nf3 Nf6 3. Nc3 d6 4. d4 Nbd7 5. Rg1 h5 6. h3 c6 7. g4 hxg4 8. hxg4 exd4 9. Nxd4 Ne5 10. g5 Nfg4 11. Be2 Nh2 12. Bf4 Qb6 13. Nb3 Rh3 14. Bg3 a5 15. a4 Be6 16. Bxh2 Rxh2 17. Qd4 Qb4 18. Qxb4 axb4 19. Nd1 Bxb3 20. cxb3 d5 21. exd5 cxd5 22. Ne3 Bc5 23. Bb5+ Kf8 24. O-O-O Bxe3+ 25. fxe3 Rc8+ 26. Kb1 Rcc2 27. Rxd5 Rxb2+ 28. Ka1 Ra2+ 29. Kb1 Rhb2+ 30. Kc1 Rc2+ 31. Kd1 Rf2 32. Rc5 Nf3 33. Rg4 Ra1+ 34. Rc1 Rd2# 0-1
2024.10.22 Rainer Radtke Mem 2024
316413 Koellner, Ruben Gideon (2480) Shefer, Uri (2128) 1/2-1/2
1. d4 Nf6 2. Bg5 e6 3. Nd2 d5 4. e3 c5 5. c3 Nbd7 6. Ngf3 Bd6 7. Bd3 h6 8. Bh4 b6 9. Qe2 Bb7 10. e4 g5 11. Bg3 Bxg3 12. hxg3 cxd4 13. cxd4 dxe4 14. Nxe4 Bxe4 15. Bxe4 Nxe4 16. Qxe4 Nf6 17. Qe5 Ke7 18. Rc1 Rc8 19. O-O Qd7 20. Qe3 Rxc1 21. Rxc1 Rc8 22. Qa3+ Ke8 23. Rxc8+ Qxc8 24. Ne5 Qc7 25. Qf3 Ke7 26. b4 b5 27. Nc6+ Kd6 28. Nxa7 Qxa7 29. Qxf6 Qa4 30. Qd8+ Kc6 31. Qc8+ Kd6 32. Qf8+ Kd5 33. Qc5+ Ke4 34. Kh2 Kd3 35. a3 Qa6 36. f3 Qb7 37. Qf8 Kxd4 38. Qxh6 Qd5 39. Qf6+ Kc4 40. Qxf7 Kb3 41. Qa7 Qe5 42. Qc5 Qh8+ 43. Kg1 Qa1+ 44. Kf2 Qb2+ 45. Ke3 Qxg2 46. Qxg5 Kxa3 47. Qxb5 Qxg3 48. Qc5 Ka4 49. Qc3 Qg5+ 50. Kf2 Qh4+ 51. Kg2 Qg5+ 52. Kf1 Qf4 53. Ke2 Qxb4 54. Qa1+ Kb3 55. Qb1+ Kc4 56. Qe4+ Kc5 57. Qe5+ Kc6 58. Qxe6+ Qd6 59. Qe8+ Kc7 60. Qf7+ Kc6 61. Qe8+ Kc7 62. Ke3 Qh6+ 63. f4 Qh3+ 64. Kd4 Qh4 65. Qe5+ Kd7 66. Ke4 Qe1+ 67. Kf5 Qxe5+ 68. Kxe5 Ke7 69. Kf5 Kf7 70. Kg5 Kg7 71. f5 Kf7 72. f6 Kf8 73. Kg6 Kg8 74. f7+ Kf8 75. Kf6 1/2-1/2
2024.10.21 Rainer Radtke Mem 2024
316357 Koellner, Ruben Gideon (2480) Bui, Bao Anh Le (2221) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 b6 5. Bd3 Bb7 6. Ne5 Bd6 7. f4 O-O 8. Qf3 c5 9. c3 Ba6 10. Bc2 Qc7 11. g4 g6 12. h4 cxd4 13. exd4 Nc6 14. Kd1 Rac8 15. Nxc6 Qxc6 16. h5 Qc7 17. Nf1 Ne4 18. g5 f5 19. Be3 Nxc3+ 20. bxc3 Qxc3 21. Rc1 Ba3 22. Qf2 Bxc1 23. Bxc1 Rc4 24. hxg6 Rxd4+ 25. Nd2 Rc8 26. gxh7+ Kh8 27. Ke1 Re4+ 28. Bxe4 Qxc1# 0-1
2024.10.13 TCh-AUT 2024-25
325505 Koellner, Ruben Gideon (2480) Erdos, V (2538) 1/2-1/2
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 a5 6. b5 c5 7. bxc6 Nxc6 8. a4 O-O 9. Ba3 Bf5 10. c3 Qc7 11. Qb3 Rfc8 12. Be2 e5 13. h3 exd4 14. cxd4 Bf8 15. Rc1 Bxa3 16. Qxa3 Qd8 17. O-O Nb4 18. Ne5 Nd7 19. Nxd7 Qxd7 20. Bb5 Qd8 21. Rxc8 Rxc8 22. Rc1 Bc2 23. Nf3 Rc7 24. Ne1 Qc8 25. Qb2 Be4 26. Rxc7 Qxc7 27. Qd2 Kg7 28. Qb2 Kf8 29. Qa3 Kg7 30. Qb2 Bf5 31. Nf3 Bd7 32. Bxd7 Qxd7 33. Qc3 Qxa4 34. Qc7 Qc6 35. Qxa5 Nd3 36. Ne5 Nxe5 37. dxe5 b6 38. Qb4 Qc5 39. Qh4 Qc6 1/2-1/2
2024.10.12 TCh-AUT 2024-25
325487 Hacker, Jonas (2385) Koellner, Ruben Gideon (2480) 1/2-1/2
1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bf4 O-O 6. e3 b6 7. cxd5 Nxd5 8. Nxd5 Qxd5 9. a3 c5 10. dxc5 Qxc5 11. Rc1 Qa5+ 12. Qd2 Qxd2+ 13. Nxd2 Na6 14. b4 Bb7 15. Bd3 Rac8 16. Ke2 g5 17. Be5 f6 18. Bb2 Rxc1 19. Rxc1 Rc8 20. Rxc8+ Bxc8 21. f4 gxf4 22. exf4 Nc7 23. g3 Bb7 24. Nf3 Bd5 25. Nd4 h6 26. Nb5 Nxb5 27. Bxb5 Kf7 28. Ke3 Bd6 29. Bd3 Ke7 30. Bc3 a5 31. bxa5 1/2-1/2
2024.10.11 TCh-AUT 2024-25
325440 Koellner, Ruben Gideon (2480) Samunenkov, Ihor (2533) 1/2-1/2
1. d4 d5 2. Nf3 c5 3. e3 cxd4 4. exd4 Nc6 5. Nbd2 Bf5 6. Bb5 e6 7. c4 Ne7 8. c5 a6 9. Ba4 g6 10. Ne5 h5 11. Qb3 Qc8 12. Ndf3 Bg7 13. Bf4 O-O 14. O-O Be4 15. Nxc6 Nxc6 16. Bd6 Rd8 17. Bxc6 bxc6 18. Ne5 f6 19. f3 Bf5 20. Nd3 g5 21. h4 gxh4 22. Nf4 Bh6 23. Nxh5 Kf7 24. g4 hxg3 25. Nxg3 Bh3 26. Rfe1 Bg5 27. Kf2 Bh4 28. Rg1 a5 29. Qd3 Bf5 30. Qe2 Rh8 31. Rh1 Qd7 32. Rh2 e5 33. Rah1 Bxg3+ 34. Kxg3 Rag8+ 35. Kf2 Rxh2+ 36. Rxh2 exd4 37. Qd2 d3 38. Rh1 a4 39. Re1 Re8 40. Rxe8 Qxe8 41. Qe1 Qh8 42. Qe7+ Kg6 43. Bg3 d4 44. a3 Qg8 45. Bh4 Qh8 46. Bg3 Kg5 47. Qd6 Kg6 1/2-1/2
2024.10.10 TCh-AUT 2024-25
325411 Naumann, Al (2487) Koellner, Ruben Gideon (2480) 1/2-1/2
1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Bd7 6. Qxc4 c5 7. Ne5 Qc8 8. Qd3 Nc6 9. Nxd7 Nxd7 10. b3 Be7 11. Bb2 O-O 12. Nc3 Rd8 13. Rd1 Nf6 14. Qb1 Qd7 15. O-O Rac8 16. d3 b6 17. Rd2 Nd5 18. e3 Nxc3 19. Bxc3 Qe8 20. Rfd1 Bf8 21. Qa1 Rd6 22. d4 cxd4 23. Bxd4 Nxd4 24. Rxd4 Rcd8 25. Rxd6 Rxd6 26. Rxd6 Bxd6 27. Qd4 Qe7 28. Bf3 g6 29. Kg2 Qc7 30. Qd3 Kg7 31. h4 1/2-1/2
2024.10.09 TCh-AUT 2024-25
325375 Koellner, Ruben Gideon (2480) Stalmach, Richard (2433) 0-1
1. d4 Nf6 2. Bg5 d5 3. e3 c5 4. Bxf6 gxf6 5. Nc3 e6 6. Qh5 cxd4 7. exd4 Bb4 8. Bd3 Nc6 9. Nf3 f5 10. O-O Qf6 11. Rae1 Kf8 12. Re3 Qg6 13. Qh3 h5 14. Ne5 Nxe5 15. dxe5 Qg4 16. Ne2 Bd7 17. Rg3 Qxh3 18. Rxh3 Ke7 19. Rh4 Ba5 20. Ng3 f6 21. exf6+ Kxf6 22. Nxh5+ Kf7 23. f4 a6 24. Rh3 Bb6+ 25. Kh1 Bb5 26. Rff3 Rac8 27. Bxb5 axb5 28. c3 b4 29. Ng3 bxc3 30. Rxc3 d4 31. Rf3 Rc1+ 32. Rf1 Rxf1+ 33. Nxf1 Rxh3 34. gxh3 Bc7 35. Kg2 Bxf4 36. Kf3 e5 37. a4 Bg5 38. Ng3 Ke6 39. b4 d3 40. a5 e4+ 41. Kf2 Bd2 42. h4 e3+ 43. Kf3 e2 44. Nxe2 dxe2 0-1
2024.10.08 Titled Tue 8th Oct Early
335577 Koellner, Ruben Gideon (2480) Vingris, Mikelis (2147) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. c3 O-O 6. Bc4 c6 7. O-O Nbd7 8. e5 dxe5 9. dxe5 Nd5 10. e6 fxe6 11. Qe2 N7b6 12. Bb3 Nf4 13. Qe4 Kh8 14. Nc4 Nxc4 15. Bxc4 Nd5 16. Ng5 e5 17. Qh4 h6 18. Ne4 Nf4 19. g3 Nh3+ 20. Kg2 Kh7 21. Be3 Qe8 22. Rad1 Bf5 23. f3 Rd8 24. Bb3 Rxd1 25. Rxd1 e6 26. Bc5 g5 27. Nxg5+ Nxg5 28. Bxf8 Qxf8 29. Qc4 Bh3+ 30. Kg1 Qxf3 31. Qd3+ e4 32. Qxf3 exf3 33. Bc2+ Kg8 34. Rd8+ Kf7 35. Rd7+ Kf8 36. Rxb7 Bg4 37. Kf2 Nh3+ 38. Ke3 h5 39. Bd3 Bh6+ 40. Kd4 f2 41. Ke5 Bg7+ 42. Kd6 Bf3 43. Bg6 Kg8 44. Bd3 Bg2 45. Kxe6 f1=Q 46. Bxf1 Bxf1 47. Rxa7 Ng5+ 48. Kf5 Nf3 49. Kf4 Ne5 50. a4 Nd3+ 51. Kg5 Nxb2 52. a5 Kh7 53. a6 Na4 54. Ra8 Nb6 55. Ra7 Kg8 56. Kxh5 Be2+ 57. Kg6 Bf8 58. Kg5 Nd5 59. Rb7 Bxa6 60. Rb6 Bc4 61. Rxc6 Ba2 62. Rc8 Ne7 63. Re8 Bf7 64. Rc8 Kg7 65. Rb8 Nd5 66. Rb6 Be7+ 67. Kf5 Bf6 68. Rd6 Nxc3 69. Rxf6 Bg6+ 70. Rxg6+ Kh7 71. Rd6 Ne2 72. Kg5 1-0
2024.10.08 Titled Tue 8th Oct Early
335662 Teterev, V (2257) Koellner, Ruben Gideon (2480) 0-1
1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. c3 Nbd7 5. Nf3 d5 6. dxe5 dxe4 7. exf6 exf3 8. fxg7 Bxg7 9. O-O Ne5 10. Bb5+ c6 11. Qxd8+ Kxd8 12. Rd1+ Kc7 13. Bf1 fxg2 14. Bxg2 Bg4 15. Re1 Nf3+ 16. Bxf3 Bxf3 17. Bf4+ Kb6 18. Nd2 Bd5 19. Be3+ Ka6 20. f3 Bf6 21. Bf4 Rhg8+ 22. Kf2 Rad8 23. Rad1 b6 24. Ne4 Be7 25. b3 f5 26. Ng3 Bc5+ 27. Be3 f4 28. Bxc5 fxg3+ 29. hxg3 bxc5 30. Re7 c4 31. b4 h5 32. Rh1 Rdf8 33. f4 Bxh1 0-1
2024.10.08 Titled Tue 8th Oct Early
335967 Koellner, Ruben Gideon (2480) Garrido Diaz, Jose Antonio (2260) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 b6 5. Ne5 Bb7 6. f4 Be7 7. Bd3 O-O 8. Qf3 c5 9. c3 Nc6 10. g4 Rc8 11. g5 Nd7 12. Qh3 g6 13. Ndf3 cxd4 14. exd4 a6 15. Rg1 Re8 16. Nxf7 Qc7 17. N3e5 Ncxe5 18. fxe5 Nf8 19. Nh6+ Kg7 20. Rf1 Bd8 21. Rf7+ Qxf7 22. Nxf7 Kxf7 23. Be3 Kg7 24. Qh6+ Kg8 25. Kd2 Rc7 26. Rf1 Rf7 27. Rxf7 Kxf7 28. h4 b5 29. h5 Bc6 30. hxg6+ hxg6 31. b3 Re7 32. Ke2 a5 33. Bc1 b4 34. Bd2 Ra7 35. cxb4 axb4 36. Bxb4 Rxa2+ 37. Ke3 Be7 38. Bxe7 Kxe7 39. Qg7+ Ke8 40. Bxg6+ Nxg6 41. Qxg6+ Kd7 42. Qf7+ Kd8 43. g6 1-0
2024.10.08 Titled Tue 8th Oct Early
336440 Koellner, Ruben Gideon (2480) Xiong, Jeffery (2646) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. Nbd2 cxd4 5. exd4 g6 6. c3 Bg7 7. Bd3 O-O 8. O-O Bf5 9. Bxf5 gxf5 10. Ne5 e6 11. Ndf3 Ne4 12. Bf4 Nc6 13. Re1 Ne7 14. Nd3 Ng6 15. Nfe5 f6 16. Nf3 Re8 17. Be3 Bf8 18. Qb3 Qc7 19. g3 Bd6 20. Re2 Kh8 21. Kh1 Rg8 22. Nd2 f4 23. Nxe4 dxe4 24. Nxf4 Nxf4 25. gxf4 Qg7 26. f3 exf3 27. Rf2 e5 28. fxe5 fxe5 29. Qd5 Bc7 30. dxe5 Bxe5 31. Qxe5 Qxe5 32. Bd4 Qxd4 33. cxd4 Rad8 34. Rxf3 Rxd4 35. Rf2 Rgd8 36. Raf1 Rd1 37. Rxd1 Rxd1+ 38. Kg2 Kg7 39. a3 a5 40. Kg3 Rd3+ 41. Kg4 Rb3 42. Rd2 Kf6 43. h4 b5 44. Re2 b4 45. axb4 axb4 46. Kh5 Rf3 47. Kg4 Rd3 48. Re4 b3 49. Rb4 Re3 50. Rb6+ Kg7 51. Rb7+ Kh6 52. Rb6+ Kg7 53. Rb7+ Kh6 54. Rb6+ Kg7 1/2-1/2
2024.10.08 Titled Tue 8th Oct Early
336626 Pranav, Anand (2539) Koellner, Ruben Gideon (2480) 1-0
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Ng5 f5 5. Nc3 Be7 6. Nh3 Nf6 7. Nf4 c5 8. e3 Nc6 9. Be2 O-O 10. O-O Re8 11. b3 g5 12. Nfd5 Bf8 13. Bb2 cxd4 14. Nxf6+ Qxf6 15. Nd5 Qf7 16. Bxd4 Nxd4 17. exd4 Be6 18. Bh5 Qg7 19. Bxe8 Rxe8 20. Nc3 Bf7 21. Qd2 Be7 22. Rae1 Bf6 23. Nb5 Rd8 24. Rd1 a6 25. Nc3 Bh5 26. f3 Re8 27. Nd5 Bd8 28. Rde1 exf3 29. Rxe8+ Bxe8 30. Rxf3 f4 31. Rf1 Bf7 32. Re1 h5 33. Qd3 Bg6 34. Qd2 Bf7 35. Kh1 h4 36. h3 Bh5 37. Qd3 Bg6 38. Qd1 Qf7 39. Qe2 Bh5 40. Qe6 f3 41. gxf3 Bxf3+ 42. Kh2 Qxe6 43. Rxe6 g4 44. hxg4 Kf7 45. Rxd6 Bg5 46. Kh3 Be2 47. Rd7+ Ke6 48. Rg7 Bf1+ 49. Kh2 Bc1 50. Rg6+ Kf7 51. Rf6+ 1-0
2024.10.08 Titled Tue 8th Oct Early
337076 Aloma Vidal, R (2398) Koellner, Ruben Gideon (2480) 0-1
1. h4 d5 2. d4 Nf6 3. Bf4 e6 4. e3 c5 5. Nc3 a6 6. Nf3 Nc6 7. Ne5 cxd4 8. exd4 Qb6 9. Nxc6 bxc6 10. Rb1 c5 11. Na4 Qa5+ 12. c3 cxd4 13. b4 Qd8 14. cxd4 a5 15. b5 Bb4+ 16. Bd2 Ne4 17. Bxb4 axb4 18. Bd3 Qa5 19. Bxe4 b3+ 20. Qd2 bxa2 21. Ra1 Qxa4 22. Bd3 Qxd4 23. O-O Ra3 24. Rfd1 Qa4 25. h5 h6 26. b6 O-O 27. Bc2 Qa5 28. Qd4 Ba6 29. Rdc1 Bc4 30. b7 Qa7 31. Qb2 Rb8 32. Qe5 Qxb7 33. Bd1 Qb2 34. Qf4 Rba8 35. Bc2 Rc3 36. Qd2 Rb8 37. Qd1 Ra3 38. Qd2 Qf6 39. Bd1 Rb2 40. Qe1 Qd4 41. Bc2 Rc3 42. Rd1 Qf6 43. Ba4 Ra3 44. Bd7 Rb8 45. Rd2 Raa8 46. Rdd1 Rb7 47. Bc6 Rba7 48. Bxa8 Rxa8 49. Qd2 e5 50. Re1 e4 51. Qc2 Rb8 52. f3 Qb6+ 53. Qf2 Qxf2+ 54. Kxf2 Rb2+ 55. Ke3 f5 56. g4 fxg4 57. fxe4 g3 58. exd5 Bxd5 59. Kd4 Bf7 60. Rg1 g2 61. Kc3 Rf2 62. Kd3 Bxh5 63. Ke3 Re2+ 64. Kd3 Rf2 65. Ke3 Rb2 66. Kd3 Bf7 67. Kc3 Rf2 68. Kd3 h5 69. Ke3 Rb2 70. Kf3 h4 71. Kg4 g5 72. Rad1 Kg7 73. Rd7 Rb1 74. Rdd1 Rxd1 75. Rxd1 Bh5+ 76. Kxh5 h3 77. Kxg5 h2 78. Rd7+ Kf8 79. Kf6 Ke8 80. Ke6 Kf8 81. Rf7+ Kg8 82. Ra7 g1=Q 83. Ra8+ Kg7 84. Rxa2 h1=Q 0-1
2024.10.08 Titled Tue 8th Oct Early
337108 Koellner, Ruben Gideon (2480) Bogdanov, Artyom (2309) 1-0
1. d4 Nf6 2. Nf3 b6 3. Nbd2 Bb7 4. e3 e6 5. Bd3 d5 6. Ne5 Bd6 7. f4 c5 8. c3 O-O 9. Qf3 Nc6 10. O-O Ne7 11. g4 cxd4 12. exd4 Nd7 13. Qh3 Ng6 14. Ndf3 Ndxe5 15. fxe5 Be7 16. Qh5 a5 17. Ng5 Bxg5 18. Bxg5 Qe8 19. Rf3 f6 20. exf6 gxf6 21. Bxf6 e5 22. dxe5 d4 23. Bc4+ Rf7 24. Rh3 Kf8 25. Qh6+ Kg8 26. Qxh7+ 1-0
2024.10.08 Titled Tue 8th Oct Early
337416 Gabdushev, R (2256) Koellner, Ruben Gideon (2480) 0-1
1. d4 d6 2. c4 e5 3. dxe5 dxe5 4. Qxd8+ Kxd8 5. Nc3 Be6 6. e4 c6 7. Be3 Kc7 8. O-O-O Nd7 9. f4 f6 10. Nf3 b6 11. Bd3 Nh6 12. h3 Rd8 13. fxe5 Nxe5 14. Nxe5 fxe5 15. Bxh6 gxh6 16. g4 Be7 17. Kc2 Rhf8 18. Rdf1 Bh4 19. Nd1 Bg5 20. Nc3 Be3 21. Ne2 Bf2 22. Rh2 Bh4 23. Rhh1 a5 24. Nc3 Bf2 25. Rh2 Bd4 26. Rhh1 Kd6 27. Ne2 Bf2 28. Rh2 Bh4 29. Rhh1 Kc5 30. Kc3 Rxd3+ 31. Kxd3 Bxc4+ 32. Kd2 Rd8+ 33. Kc3 Bxe2 34. Rf7 Bg5 35. Rxh7 Rd3+ 36. Kc2 Rd2+ 37. Kc3 b5 38. a3 b4+ 39. axb4+ axb4+ 40. Kb3 Bc4+ 41. Ka4 Rxb2 42. Ra1 Bb5+ 43. Ka5 Bd8+ 0-1
2024.10.08 Titled Tue 8th Oct Early
337600 Xu, Yi (2496) Koellner, Ruben Gideon (2480) 1/2-1/2
1. e4 d6 2. Nc3 Nf6 3. g3 e5 4. Bg2 c5 5. Nge2 Nc6 6. d3 Be7 7. h3 Be6 8. Nd5 Nd4 9. c3 Nxe2 10. Qxe2 Nxd5 11. exd5 Bd7 12. O-O O-O 13. Be3 f5 14. f4 Bf6 15. Rae1 Re8 16. Qf2 Qa5 17. fxe5 Bxe5 18. a3 Qa6 19. Rd1 Bb5 20. c4 Bd7 21. Kh2 b5 22. cxb5 Qxb5 23. d4 cxd4 24. Bxd4 Bxd4 25. Qxd4 Re2 26. Rf2 Rae8 27. Rxe2 Rxe2 28. Rd2 Rxd2 29. Qxd2 a5 30. b4 axb4 31. axb4 Qb6 32. Qg5 Kf8 33. Qh4 h6 34. Qf4 Ke7 35. Qh4+ Kf8 36. Qf4 Ke7 37. Qh4+ Kf8 1/2-1/2
2024.10.08 Titled Tue 8th Oct Early
337967 Koellner, Ruben Gideon (2480) Caruana, F (2796) 0-1
1. d4 Nf6 2. Nf3 d6 3. Nbd2 g6 4. e4 Bg7 5. c3 O-O 6. Bc4 a6 7. Bb3 b6 8. O-O Bb7 9. Re1 e6 10. Qe2 Nbd7 11. Bc2 c5 12. b4 cxb4 13. cxb4 b5 14. Nf1 Nb6 15. e5 Nfd5 16. Bg5 Qd7 17. a3 Rac8 18. Ng3 Nc3 19. Qe3 dxe5 20. dxe5 Ncd5 21. Qd2 Nc4 22. Qd4 h6 23. Qh4 hxg5 24. Nxg5 Rfe8 25. f4 Nce3 26. Be4 Rc4 27. Qh7+ Kf8 28. h4 Nxf4 29. Rxe3 Qd4 30. Re1 Rc3 31. Bxb7 Rxe3 32. Rxe3 Qxe3+ 33. Kh2 Qxe5 34. Bf3 Rd8 35. N3e4 Rd4 36. g3 Nd3 37. h5 Ne1 38. Bh1 gxh5 39. Qxh5 Qf5 40. Qe2 Nd3 41. Qe3 Ne5 42. Kg2 Ng4 43. Qe2 Rc4 44. Qf3 Rc2+ 45. Kg1 Rc1+ 46. Kg2 Qxf3+ 47. Nxf3 Ne3+ 48. Kh2 Rc2+ 49. Kh3 Nc4 50. Neg5 Nxa3 51. Nh7+ Ke7 52. Nhg5 Rc3 53. Nd2 Nc4 54. Nge4 Re3 55. Nxc4 bxc4 0-1
2024.10.08 Titled Tue 8th Oct Early
338162 Yeganegi, Barad (2347) Koellner, Ruben Gideon (2480) 0-1
1. d4 d6 2. c4 e5 3. e3 exd4 4. Qxd4 Nc6 5. Qd1 Nf6 6. Nc3 g6 7. Bd3 Bg7 8. Nf3 O-O 9. O-O Re8 10. Rb1 Ne5 11. Nxe5 dxe5 12. b3 c6 13. Bb2 Qc7 14. Qc2 Be6 15. Ne4 Nxe4 16. Bxe4 f5 17. Bd3 Rad8 18. Be2 Rd7 19. Rfd1 Red8 20. Rxd7 Rxd7 21. Rd1 Rxd1+ 22. Qxd1 Qd7 23. Qxd7 Bxd7 24. f3 Kf7 25. e4 f4 26. Kf2 Ke6 27. c5 Bf8 28. Bc4+ Kf6 29. b4 b6 30. cxb6 axb6 31. a3 c5 32. bxc5 Bxc5+ 33. Kf1 g5 34. h3 h5 35. Ke2 g4 36. hxg4 hxg4 37. Kf1 g3 38. Bd3 Bd4 39. Bxd4 exd4 40. Ke2 Ke5 41. Kd2 Kd6 42. Bc4 Kc5 43. Be2 Be6 44. Bd3 Bf7 45. Be2 Bh5 46. Bf1 Be8 47. Be2 b5 48. Bd3 Kb6 49. Kc2 Bf7 50. Kb2 Be6 51. Kc2 Ka5 52. Kb2 Bf7 53. Bf1 Kb6 54. Bd3 Kc5 55. Kc2 Bh5 56. Be2 Be8 57. Bf1 Bc6 58. Bd3 Kd6 59. Bf1 Kc5 60. Bd3 b4 61. axb4+ Kxb4 62. Kd2 Kc5 63. Be2 Kd6 64. Bc4 Ke5 65. Bd3 Bb7 66. Bc4 Bc8 67. Bf1 Be6 68. Be2 Kd6 69. Bd3 Kc5 70. Be2 Bf7 71. Bd3 Bh5 72. Be2 Kc6 73. Kd3 Kc5 74. Kd2 Kd6 75. Bd3 Bxf3 76. Bf1 Bxe4 77. Ke2 Kc5 78. Kd2 f3 79. gxf3 Bxf3 0-1
2024.10.08 Titled Tue 8th Oct Late
338358 Koellner, Ruben Gideon (2480) Molina Sumoza, Jesus Alberto (1987) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. e3 g6 4. Nbd2 Bg7 5. b4 O-O 6. c4 b6 7. Bb2 c5 8. dxc5 bxc5 9. b5 d4 10. exd4 Nh5 11. Nb3 Nd7 12. Qd2 Qc7 13. d5 Bxb2 14. Qxb2 e6 15. dxe6 Re8 16. O-O-O Rxe6 17. Bd3 Bb7 18. Rhe1 Rae8 19. Rxe6 Rxe6 20. Re1 Rxe1+ 21. Nxe1 Qxh2 22. f3 Ne5 23. Qe2 Qg3 24. Nxc5 Bc8 25. a4 f6 26. Ne4 Qxe1+ 27. Qxe1 Nxd3+ 28. Kd2 Nxe1 29. Kxe1 Nf4 30. g3 Nd3+ 31. Kd2 Ne5 32. c5 f5 33. Nd6 Be6 34. f4 Nc4+ 35. Nxc4 Bxc4 36. Kc3 Bf1 37. c6 Bg2 38. Kd4 Kf8 39. Kc5 Ke7 40. a5 Kd8 41. Kd6 Bf1 42. b6 axb6 43. axb6 Kc8 44. Ke7 Bb5 45. c7 Ba6 46. Kf7 Kb7 47. Kg7 Kxb6 48. Kxh7 Kxc7 49. Kxg6 Bd3 50. Kg5 Kd6 51. g4 fxg4 52. Kxg4 Ke6 53. Kg5 Bf5 54. Kh4 Kd5 55. Kg5 Ke4 56. Kf6 Bh3 57. f5 Bxf5 1/2-1/2
2024.10.06 Bundesliga 2024-25
341127 Koellner, Ruben Gideon (2481) Rafiee, M (2285) 1-0
1. d4 c5 2. d5 g6 3. e4 Bg7 4. Nc3 d6 5. Nf3 Bg4 6. Be2 Bxf3 7. Bxf3 Nf6 8. O-O O-O 9. Be2 Na6 10. Bc4 Nc7 11. a4 a6 12. Qe2 Rb8 13. a5 b5 14. axb6 Rxb6 15. Ra2 Nb5 16. Nxb5 axb5 17. Bxb5 Nxe4 18. Bc6 Nf6 19. Bd2 Qb8 20. Qxe7 Rxb2 21. Ra8 Qxa8 22. Bxa8 Rxa8 23. Qxd6 Ne4 24. Qc6 Rd8 25. Ba5 Rdb8 26. d6 Nc3 27. d7 Ne2+ 28. Kh1 Rb1 29. d8=Q+ 1-0
2024.10.05 Bundesliga 2024-25
341095 Wisnet, D (2284) Koellner, Ruben Gideon (2481) 0-1
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. d3 b5 7. Bb3 d6 8. a4 Bg4 9. c3 Rb8 10. axb5 axb5 11. Be3 O-O 12. Nbd2 Bxe3 13. fxe3 Ne7 14. Qe1 Ng6 15. h3 Bxf3 16. Nxf3 b4 17. Bc4 c6 18. cxb4 Qb6 19. Ra6 Qb7 20. Ra4 d5 21. exd5 cxd5 22. Bb3 Rfe8 23. Qd2 Qe7 24. Re1 Rb5 25. e4 Reb8 26. exd5 Rxb4 27. Rxb4 Rxb4 28. Qc3 Qb7 29. Nd2 Rf4 30. Rc1 Nf8 31. Qxe5 Qb6+ 32. Kh1 Rf2 33. Qe1 Rxd2 34. Qxd2 Qxb3 35. d6 Qb6 36. b4 Qxd6 37. b5 h6 38. Qe3 N8d7 39. d4 Qd5 40. Rc8+ Kh7 41. Qd3+ Ne4 42. Rc7 f5 43. Qc4 Qd6 44. Qc6 Qf4 45. Qc1 Nf2+ 46. Kg1 Qxd4 47. Rxd7 Qxd7 48. Kxf2 Qxb5 49. Qc2 Qe5 50. Kg1 Kg6 51. Qd3 Kg5 52. Qd8+ Kh5 53. Kf2 Qf4+ 54. Kg1 Qe3+ 55. Kh2 Qe5+ 56. Kg1 g5 57. Qd2 Kg6 58. Qd3 Qe4 59. Qd6+ Kh5 60. Qf6 f4 61. Kh2 Qe3 62. Kh1 Qe4 63. Kh2 Qe1 64. Qc6 Qe5 65. Kh1 Kh4 66. Qxh6+ Kg3 67. Qb6 Qe3 68. Qb1 f3 69. Qb8+ Qf4 70. Qb2 g4 71. Qc2 Qe5 72. Qc1 fxg2+ 73. Kg1 Qd4+ 74. Qe3+ Qxe3# 0-1
2024.10.01 Titled Tue 1st Oct Early
342110 Shohat, Yotam (2415) Koellner, Ruben Gideon (2481) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. f3 Bd6 9. Nh3 Ke7 10. Nf2 Nbd7 11. Bd2 a6 12. Nd3 c5 13. Nd1 c4 14. N3f2 b5 15. Ne3 Nb6 16. Ba5 Bc5 17. Ke2 Nfd7 18. Rhd1 Rhc8 19. c3 Na4 20. Rd2 Nb8 21. b3 Nc6 22. bxa4 Nxa5 23. axb5 axb5 24. Rb1 Rcb8 25. Rdb2 Nc6 26. Nfd1 Kd6 27. Rxb5 Rxa2+ 28. R1b2 Rxb2+ 29. Rxb2 Bxe3 30. Rxb8 Nxb8 31. Nxe3 Kc5 32. h4 Nd7 33. h5 h6 34. Ng4 Kd6 35. Ne3 Kc5 36. Kd2 Nf6 37. g4 Ne8 38. Kc2 Nd6 39. Kb2 Nf7 40. Nf1 Ng5 41. Nd2 Nh3 42. Ka3 Kb5 43. Kb2 Ng1 44. Kc2 Ne2 45. Kb2 Nf4 46. Kc2 Nh3 47. Kb2 Nf2 48. Kc2 Nd3 49. Kb1 Ne1 50. Kb2 Kc5 51. Ka3 Nd3 52. Ka4 Nb2+ 53. Ka5 Nd1 54. Ka6 Nxc3 55. Kb7 Nb5 56. Kc8 c3 57. Nb3+ Kc4 58. Nc1 Nd4 59. Kd7 c2 60. Kd6 Nb3 0-1
2024.10.01 Titled Tue 1st Oct Early
342184 Koellner, Ruben Gideon (2481) Ser, Daniel (2017) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 Bd6 5. Bd3 O-O 6. O-O b6 7. Ne5 Bb7 8. f4 Ne4 9. Qf3 f5 10. Qh3 c5 11. c3 Nc6 12. Ndf3 a5 13. a4 Qc7 14. Bxe4 dxe4 15. Ng5 g6 16. Nxe6 Qe7 17. Nxf8 Rxf8 18. Bd2 Ba6 19. Rfd1 Nxe5 20. dxe5 Bb8 21. Be1 Bd3 22. Bh4 Qe6 23. Bf6 c4 24. Kf2 Ba7 25. Rg1 Qd7 26. g4 Bc2 27. Rae1 fxg4 28. Rxg4 Bxa4 29. Qh6 Rf7 30. Rxg6+ hxg6 31. Qh8# 1-0
2024.10.01 Titled Tue 1st Oct Early
342538 Koellner, Ruben Gideon (2481) Sarana, A (2713) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. Nbd2 Nc6 5. c3 Bg4 6. dxc5 e5 7. b4 e4 8. h3 Bh5 9. g4 Bg6 10. Nd4 Be7 11. Bb5 Qc7 12. Qa4 O-O 13. Bxc6 bxc6 14. Qxc6 Qe5 15. Qb7 Rfb8 16. Nc6 Qxc3 17. Nxb8 Qxa1 18. Nb3 Qxa2 19. Qxa8 Bf8 20. Nc6 Nd7 21. Nbd4 Qc4 22. Bd2 h6 23. Qxa7 Nf6 24. Ne5 Qb3 25. Nxb3 1-0
2024.10.01 Titled Tue 1st Oct Early
342903 Naroditsky, D (2619) Koellner, Ruben Gideon (2481) 1-0
1. d4 d6 2. Nf3 Nf6 3. g3 Nbd7 4. c4 e5 5. Nc3 Be7 6. Bg2 O-O 7. O-O c6 8. e4 Qc7 9. Re1 a6 10. b3 b5 11. Bb2 b4 12. Nb1 Re8 13. a3 c5 14. d5 a5 15. a4 Nf8 16. Nbd2 h6 17. h3 N6h7 18. Kh2 f5 19. exf5 Bxf5 20. Ne4 Rad8 21. Nfd2 Nf6 22. Nxf6+ Bxf6 23. Ne4 Nh7 24. Qh5 Bc8 25. f4 exf4 26. Nxf6+ Nxf6 27. Bxf6 fxg3+ 28. Kxg3 Rxe1 29. Bxd8 Re3+ 30. Kf2 Qxd8 31. Kxe3 Qe7+ 32. Be4 Qf6 33. Qe8+ Qf8 34. Bh7+ Kxh7 35. Qxf8 1-0
2024.10.01 Titled Tue 1st Oct Early
343399 Koellner, Ruben Gideon (2481) Miszler, Levente (2262) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 Be7 5. Bd3 O-O 6. O-O b6 7. Ne5 Bb7 8. f4 Nbd7 9. Qf3 c5 10. c3 Qc7 11. g4 Nxe5 12. fxe5 Nd7 13. Qh3 g6 14. Qh6 f5 15. gxf5 exf5 16. Nf3 Rf7 17. Bd2 Nf8 18. Kh1 Ne6 19. Rg1 Bf8 20. Qh3 Bg7 21. Ng5 Nxg5 22. Rxg5 Re8 23. Rag1 Qd7 24. Be1 c4 25. Bc2 Rxe5 26. dxe5 d4+ 27. R5g2 d3 28. Bd1 Bxg2+ 29. Qxg2 Bxe5 30. Bf3 Re7 31. Bd5+ Kg7 32. Bxc4 Bc7 33. Bd2 Re4 34. Bb3 Rh4 35. h3 f4 36. Rf1 Rxh3+ 37. Kg1 Rg3 38. exf4 Rxg2+ 39. Kxg2 Qg4+ 40. Kh1 Qe2 41. Rd1 Qf3+ 42. Kg1 Qg3+ 43. Kf1 Bxf4 44. Bxf4 Qxf4+ 45. Kg2 Qe4+ 46. Kg3 h5 47. Rf1 h4+ 48. Kh2 Qe2+ 49. Kg1 h3 50. Bd5 d2 51. Bf3 Qxf3 52. Rxf3 d1=Q+ 53. Kf2 h2 54. Rf7+ Kxf7 0-1
2024.10.01 Titled Tue 1st Oct Early
343676 Koellner, Ruben Gideon (2481) Herman, Ma (2383) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 Bd6 5. Bd3 b6 6. e4 dxe4 7. Nxe4 Bb7 8. Nxf6+ gxf6 9. O-O Nd7 10. c3 Qe7 11. Qe2 Rg8 12. Be4 O-O-O 13. a4 c6 14. a5 f5 15. Bd3 Nb8 16. axb6 axb6 17. Ne5 c5 18. f3 Qh4 19. g3 cxd4 20. cxd4 Qxd4+ 21. Be3 Qxe5 22. Qc2+ Bc5 23. Rae1 Qc7 24. Qe2 f4 25. Bxc5 Qxc5+ 26. Kg2 Qd6 27. Rc1+ Nc6 28. Ba6 fxg3 29. h4 Kb8 30. Bxb7 Kxb7 31. Rfd1 Qe5 32. Qc2 Qc5 33. Qe2 Qf2+ 34. Qxf2 gxf2+ 35. Kxf2 Rxd1 36. Rxd1 Ne5 37. f4 Ng4+ 38. Kf3 Kc6 39. Rc1+ Kd7 40. Rd1+ Ke7 41. Rc1 Nf6 42. Rc6 Nd7 43. Rc7 Kd6 44. Rc2 h5 45. Rd2+ Kc7 46. Rc2+ Kb7 47. Rd2 Kc7 48. Rc2+ Kd8 49. Rd2 Rg1 50. Ke4 Rg4 51. Rh2 Ke7 52. Kf3 Nf6 53. Rc2 Nd5 0-1
2024.10.01 Titled Tue 1st Oct Early
343818 Kumala, A (2160) Koellner, Ruben Gideon (2481) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. g4 d5 6. dxe5 Nxe4 7. Qxd5 Nxc3 8. bxc3 c6 9. Qe4 Nc5 10. Qf4 Qa5 11. Bd2 Be6 12. Nd4 O-O-O 13. Bg2 Qa6 14. Rb1 Be7 15. Be3 g5 16. Qg3 Bc4 17. e6 Nxe6 18. Nf5 Bf6 19. Nd6+ Rxd6 20. Qxd6 Bxc3+ 21. Bd2 Rd8 22. Qxd8+ Kxd8 23. Bxc3 Nf4 24. Be4 Bxa2 25. Rd1+ Bd5 26. Bf6+ Ke8 27. Bd3 Qa5+ 28. c3 Bxh1 29. Kf1 Bd5 30. c4 Nxd3 31. cxd5 Qxd5 32. h4 Qh1+ 33. Ke2 Nf4+ 34. Kd2 Qd5+ 35. Ke1 Qe4+ 36. Kd2 Qd3+ 37. Ke1 Qe2# 0-1
2024.10.01 Titled Tue 1st Oct Early
344075 Koellner, Ruben Gideon (2481) Ristic, Neb1 (2248) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O Nxe4 7. Nxe4 d5 8. Bd3 dxe4 9. Bxe4 Nc6 10. c3 Bg4 11. h3 Bxf3 12. Qxf3 e5 13. Bxc6 bxc6 14. dxe5 Bxe5 15. Qxc6 Rb8 16. b3 Qd6 17. Qxd6 cxd6 18. Bd2 Rfc8 19. Rac1 a5 20. c4 a4 21. b4 Rc7 22. Rc2 Rbc8 23. Rfc1 a3 24. Bh6 f6 25. b5 Bb2 26. Rd1 Rxc4 27. Rxc4 Rxc4 28. Rxd6 g5 29. g3 Kf7 30. Rd7+ Kg6 31. Bf8 Be5 32. g4 Rc1+ 33. Kg2 Rc2 34. Rg7+ Kh6 35. Rc7+ Kg6 36. Rxc2 1-0
2024.10.01 Titled Tue 1st Oct Early
344343 Grot, Blazej (2190) Koellner, Ruben Gideon (2481) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. g4 d5 6. exd5 e4 7. Ng5 Bb4 8. Bd2 Bxc3 9. Bxc3 Nb6 10. Bg2 Bxg4 11. Qd2 Nbxd5 12. Bb4 Qd7 13. Nxe4 Nxe4 14. Bxe4 Qe6 15. O-O O-O-O 16. Rae1 Bh3 17. Qg5 h6 18. Qg3 Bxf1 19. Kxf1 Kb8 20. Ba5 Qa6+ 21. c4 Qxc4+ 22. Kg1 b6 23. Bd2 Qxd4 24. Bc1 Rhe8 25. Qf3 Nf6 26. Bf4 Rxe4 27. Bxc7+ Kxc7 28. Rc1+ Kb7 0-1
2024.10.01 Titled Tue 1st Oct Early
344639 Mazurkiewicz, M (2224) Koellner, Ruben Gideon (2481) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. f3 Bd6 9. Nh3 Ke7 10. Nf2 a6 11. Be3 Nbd7 12. Nd3 c5 13. a4 c4 14. Nf2 b6 15. Ke2 Bc5 16. Nfd1 Bd4 17. Na2 Nc5 18. Nb4 Rhc8 19. a5 b5 20. Nc3 Bxc3 21. bxc3 Na4 22. Ra3 h6 23. g4 Nd7 24. g5 h5 25. g6 Nb8 26. Rg1 Nc6 27. Rg5 Nxc3+ 28. Rxc3 Nxb4 29. Rxh5 Kf6 30. Rg5 Nc6 31. Ra3 Nd4+ 32. Bxd4 Kxg5 33. Bxe5 Kxg6 34. f4 Kf7 35. Rg3 Rg8 36. c3 Rad8 37. h4 Rd3 38. Rg5 Rh3 39. h5 g6 40. h6 Rxh6 41. Rg1 Rh2+ 42. Kf3 Rd8 43. Kg3 Rh5 44. Kg4 Rd3 45. Rg2 Rh1 0-1
2024.10.01 Titled Tue 1st Oct Early
344852 Koellner, Ruben Gideon (2481) Mamedov, Edgar (2448) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. c3 O-O 6. Bc4 Nc6 7. O-O e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Qe2 Nh5 11. g3 Bh3 12. Re1 Qe7 13. Nf3 h6 14. Kh1 Rfd8 15. Ng1 Be6 16. Be3 Nf6 17. f3 c6 18. a4 Ne8 19. Red1 h5 20. Rxd8 Rxd8 21. Bxa7 Nd6 22. Bxe6 Qxe6 23. Bc5 Nc4 24. b3 Na5 25. b4 Nb3 26. Rd1 Rxd1 27. Qxd1 Nxc5 28. bxc5 Bf8 29. Qb1 Qd7 30. Qc2 Bxc5 31. Kg2 h4 32. Ne2 h3+ 33. Kf1 Ba7 34. Ng1 Kg7 35. g4 Bxg1 36. Kxg1 Qd6 37. Kf2 Qc5+ 38. Kg3 Qe3 39. Qd1 Qxc3 40. Kxh3 c5 41. Kg3 c4 42. g5 Qe3 43. h4 c3 0-1
2024.10.01 Titled Tue 1st Oct Late
345159 Koellner, Ruben Gideon (2481) Pang, Qi (2155) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 Be7 5. Bd3 O-O 6. O-O b6 7. Ne5 Bb7 8. f4 Nbd7 9. Qf3 c5 10. c3 a5 11. g4 Ba6 12. Bxa6 Rxa6 13. g5 Ne4 14. Nxe4 dxe4 15. Qxe4 Nxe5 16. dxe5 Ra8 17. Qf3 f6 18. exf6 gxf6 19. gxf6 Bxf6 20. e4 Kh8 21. Be3 Qd3 22. Rad1 Qc4 23. Rd7 Rg8+ 24. Kh1 Raf8 25. Rg1 Rxg1+ 26. Bxg1 Qxa2 27. Qe2 Qb1 28. Rd1 Qa2 29. h3 Qa4 30. Bh2 Rd8 31. Rxd8+ Bxd8 32. Kg2 Qd7 33. Kf3 Kg8 34. Kg2 Bc7 35. Bg3 a4 36. Kf3 b5 37. Kg2 b4 38. cxb4 cxb4 39. Kf3 a3 40. bxa3 bxa3 41. Qc4 Qd1+ 42. Kg2 Qd2+ 43. Bf2 a2 44. Qxe6+ Kf8 45. Qc8+ Bd8 46. Qf5+ Ke8 47. Qe6+ Be7 48. Qc8+ Kf7 49. Qf5+ Kg7 50. Qe5+ Bf6 51. Qc7+ Kh6 52. Qc6 a1=Q 53. e5 Qxf4 54. exf6 Qb1 55. f7+ Qg6+ 56. Qxg6+ Kxg6 57. Be3 Qxf7 58. Kg3 h5 59. h4 Qf5 60. Bg5 Qg4+ 61. Kf2 Kf5 62. Ke3 Qh3+ 63. Kd4 Qf3 64. Kc5 Kg4 65. Kd6 Qf5 66. Kc6 Kf3 67. Kd6 Ke4 68. Kc6 Kd4 69. Kb6 Qc5+ 70. Kb7 Kd5 71. Kb8 Qc6 72. Bf4 Qd7 73. Bc7 Kc6 74. Ba5 Qb7# 0-1
2024.10.01 Titled Tue 1st Oct Late
345218 Pan, Kevin (2333) Koellner, Ruben Gideon (2481) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. d5 Be7 5. Nf3 O-O 6. h3 c6 7. Bc4 b5 8. Bb3 b4 9. Ne2 c5 10. Qd3 Nbd7 11. a3 Qb6 12. O-O Ba6 13. Bc4 Bxc4 14. Qxc4 a5 15. a4 Qc7 16. Bg5 Nb6 17. Qd3 c4 18. Qe3 h6 19. Bh4 Rfe8 20. b3 c3 21. Nh2 Nfd7 22. Bxe7 Rxe7 23. f4 Qc5 24. Qxc5 Nxc5 25. fxe5 Rxe5 26. Ng3 Nxe4 27. Nf5 Nxd5 28. Rae1 Rae8 29. Ng4 R5e6 30. Rf3 Nd2 31. Rxe6 Nxf3+ 32. gxf3 Rxe6 33. Kf2 h5 34. Nh2 Nf4 35. Nd4 Rg6 36. Nf1 Nxh3+ 37. Ke3 Rg1 38. Ke2 Nf4+ 39. Kf2 Rg2+ 40. Ke3 Nd5+ 41. Ke4 Nf6+ 42. Ke3 h4 43. f4 Ng4+ 44. Kf3 Rf2+ 45. Kxg4 Rxf1 46. Kxh4 Rxf4+ 47. Kg3 Rxd4 0-1
2024.10.01 Titled Tue 1st Oct Late
345576 Koellner, Ruben Gideon (2481) Zielonka, Adam (2319) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 Be7 5. Bd3 O-O 6. O-O c5 7. c3 Nc6 8. dxc5 Bxc5 9. b4 Be7 10. Bb2 b6 11. a3 Bb7 12. c4 dxc4 13. Nxc4 Rc8 14. Rc1 b5 15. Nce5 Nxe5 16. Nxe5 a6 17. Qe2 Qd5 18. f3 Rxc1 19. Rxc1 Rc8 20. Rxc8+ Bxc8 21. Qc2 Qb7 22. Bd4 h6 23. h3 Bd7 24. Nxd7 Qxd7 25. Kf2 Nd5 26. Bh7+ Kf8 27. Be4 f5 28. Bd3 Kf7 29. g4 Qd6 30. gxf5 Qh2+ 31. Ke1 Bh4+ 32. Kd1 Qg1+ 33. Bf1 Qxf1+ 34. Kd2 Be1+ 35. Kc1 Bxb4+ 36. Kb2 Be7 37. fxe6+ Kxe6 38. Qe4+ Kd6 39. Qe5+ Kc6 40. Qe6+ Kc7 41. Qxd5 Qe2+ 42. Kb3 Qd1+ 43. Kc3 Qc1+ 44. Kd3 Qb1+ 45. Ke2 Qc2+ 46. Kf1 Qd1+ 47. Kg2 Qe2+ 48. Kg3 Qe1+ 49. Kf4 Bg5+ 50. Kf5 Qb1+ 51. e4 Qd3 52. Be5+ Kb6 53. Qxd3 1-0
2024.10.01 Titled Tue 1st Oct Late
345716 Elier, Ali (2160) Koellner, Ruben Gideon (2481) 0-1
1. e4 d6 2. Nc3 Nf6 3. Nf3 e5 4. Bc4 Be7 5. d3 O-O 6. Be3 c6 7. Bb3 Nbd7 8. Qd2 b5 9. a3 a5 10. O-O Bb7 11. Rfe1 Qb8 12. d4 b4 13. axb4 axb4 14. Rxa8 Bxa8 15. Na2 c5 16. dxe5 Nxe4 17. Qd3 Nxe5 18. Nxe5 dxe5 19. Nc1 Nf6 20. Bg5 e4 21. Qh3 Qe5 22. Bh4 Qxb2 23. Ne2 Qe5 24. Ng3 Bb7 25. Nf5 Bd8 26. Bg3 Qc3 27. Rd1 c4 28. Bd6 Qxh3 29. gxh3 cxb3 30. Bxf8 bxc2 31. Rxd8 c1=Q+ 32. Kg2 e3+ 33. f3 Qd2+ 34. Kg3 Qxd8 35. Be7 Qc7+ 36. Bd6 Qd7 37. Kf4 Qxf5+ 38. Kxf5 b3 0-1
2024.10.01 Titled Tue 1st Oct Late
345870 Koellner, Ruben Gideon (2481) Makarian, Rudik (2550) 1-0
1. d4 Nf6 2. Nf3 c5 3. e3 d5 4. Nbd2 cxd4 5. exd4 Qc7 6. c3 Nc6 7. Bb5 Bg4 8. Qa4 Bxf3 9. Nxf3 Nd7 10. O-O e6 11. Re1 Bd6 12. h3 O-O 13. Bd3 Nf6 14. Bg5 Be7 15. Qd1 h6 16. Bh4 Nh5 17. Bxe7 Qxe7 18. Ne5 Nf6 19. Qf3 Nd7 20. Ng4 Nf6 21. Ne5 Nxe5 22. Rxe5 Nd7 23. Re3 Qd6 24. Rae1 a6 25. Qg4 Nf6 26. Qh4 Qd8 27. Rg3 Kh8 28. Ree3 Ng8 29. Qg4 g6 30. Ref3 Qe7 31. Qf4 Kg7 32. h4 h5 33. Qe5+ Nf6 34. Rf4 1-0
2024.10.01 Titled Tue 1st Oct Late
346016 Koellner, Ruben Gideon (2481) Troff, Kayden (2490) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d6 4. e4 Bg7 5. Bc4 O-O 6. O-O c6 7. Bb3 Qc7 8. Qe2 Nbd7 9. e5 dxe5 10. dxe5 Nd5 11. e6 Ne5 12. Nxe5 Qxe5 13. Qxe5 Bxe5 14. Nf3 Bf6 15. exf7+ Kxf7 16. Ng5+ Bxg5 17. Bxg5 Be6 18. Rfe1 Rad8 19. Re2 Rd6 20. Rae1 Re8 21. c4 Nf6 22. c5 Rd5 23. Rxe6 Rxg5 24. Rxe7+ Kf8 25. Rf7+ Kg8 26. Rxf6+ Kg7 27. Rf7+ 1-0
2024.10.01 Titled Tue 1st Oct Late
346288 Harsha, B (2550) Koellner, Ruben Gideon (2481) 1-0
1. Nf3 d6 2. d4 Nf6 3. c4 g6 4. Nc3 Bf5 5. g3 Ne4 6. Bd2 Bg7 7. Bg2 Nxc3 8. Bxc3 Be4 9. O-O O-O 10. Re1 c5 11. Qd2 Nc6 12. d5 Bxc3 13. Qxc3 Nb4 14. Bh3 Bxf3 15. exf3 Na6 16. Re4 Nc7 17. Rae1 Re8 18. Qe3 b5 19. Qh6 e5 20. dxe6 fxe6 21. cxb5 e5 22. a4 Qf6 23. f4 exf4 24. Qxf4 Qxf4 25. gxf4 Rxe4 26. Rxe4 Re8 27. Rxe8+ Nxe8 28. a5 Nc7 29. b6 axb6 30. axb6 Na6 31. Be6+ Kf8 32. f5 Ke7 33. Bc4 Nb8 34. fxg6 hxg6 35. h4 Kf6 36. Kg2 Ke5 37. Bd3 Kf6 38. Be4 Ke5 39. Bxg6 d5 40. h5 Kf6 41. b3 Kg5 42. Kg3 c4 43. bxc4 dxc4 44. f4+ Kh6 45. Kg4 c3 46. b7 Nd7 47. Bc2 Nb8 48. f5 Nd7 49. Kh4 Nb8 50. f6 Nd7 51. Bb1 Nb8 52. Kg4 Nd7 53. Kf5 Kxh5 54. f7 c2 55. Bxc2 Kh6 56. b8=Q Nxb8 57. f8=Q+ Kh5 58. Qh8# 1-0
2024.10.01 Titled Tue 1st Oct Late
346361 Haug, Havard (2319) Koellner, Ruben Gideon (2481) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. dxe5 Nxe5 7. Nxe5 dxe5 8. Qxd8+ Bxd8 9. Bg5 h6 10. Bxf6 Bxf6 11. O-O-O c6 12. f3 b5 13. Bb3 Bg5+ 14. Kb1 Ke7 15. a4 a6 16. Rd3 b4 17. Ne2 a5 18. Bc4 Ra7 19. Rhd1 Rf8 20. Nc1 Bxc1 21. Kxc1 Rd7 22. b3 Rfd8 23. Rxd7+ Rxd7 24. Rxd7+ Bxd7 25. Kd2 f6 26. Ke3 g6 27. Kd3 f5 28. Ke3 f4+ 29. Kd2 g5 30. c3 c5 31. cxb4 cxb4 32. Ke2 Kd6 33. h3 Kc5 34. Kd3 Bc8 35. Kd2 Kd4 36. Be2 Be6 37. Bd1 h5 38. Bc2 g4 39. fxg4 hxg4 40. h4 Bf7 41. Bd1 Bh5 42. Bc2 g3 43. Bd1 Bxd1 44. Kxd1 Kxe4 45. Ke2 Kf5 0-1
2024.10.01 Titled Tue 1st Oct Late
346490 Koellner, Ruben Gideon (2481) Grigoriants, S RUS (2533) 1/2-1/2
1. d4 Nf6 2. Nf3 d5 3. e3 c6 4. Nbd2 Bf5 5. Ne5 Nbd7 6. g4 Be6 7. h3 h5 8. Rg1 hxg4 9. hxg4 Nxe5 10. dxe5 Ne4 11. Nxe4 dxe4 12. Qxd8+ Rxd8 13. Bd2 Rh4 14. Be2 g6 15. Bc3 Bg7 16. Rd1 Rxd1+ 17. Kxd1 Rh2 18. Ke1 Kd7 19. b3 g5 20. Bd4 b6 21. c4 f6 22. exf6 Bxf6 23. Bd1 Bf7 24. Bc2 Bg6 25. Ke2 c5 26. Bxf6 exf6 27. Rd1+ Ke7 28. Rg1 Rh4 29. Ke1 Ke6 30. Bd1 Ke5 31. Be2 Bf7 32. Kd2 Be6 33. Ke1 Rh2 34. Bd1 Bc8 35. Be2 a5 36. a4 Be6 37. Bd1 Rh4 38. Be2 Rh7 39. Bd1 Rh4 40. Be2 Rh2 41. Bd1 Rh4 1/2-1/2
2024.10.01 Titled Tue 1st Oct Late
346620 Santos Latasa, J (2624) Koellner, Ruben Gideon (2481) 0-1
1. Nf3 d6 2. d4 Nf6 3. c4 g6 4. Nc3 Bf5 5. Nh4 Bd7 6. e4 e5 7. Nf3 Nc6 8. d5 Ne7 9. Be2 Bg7 10. g3 O-O 11. Bg5 h6 12. Bd2 Ne8 13. Qc1 Kh7 14. Nh4 f5 15. exf5 Nxf5 16. Nxf5 gxf5 17. Qc2 Kh8 18. O-O-O Nf6 19. h3 Qe7 20. g4 f4 21. Bf3 Rae8 22. Rde1 c6 23. Rhg1 cxd5 24. cxd5 Nh7 25. Kb1 Qh4 26. Ne4 Ng5 27. Qb3 Nxe4 28. Bxe4 Qxf2 29. Bb4 Qb6 30. Qa3 f3 31. Rgf1 f2 32. Re2 Bb5 0-1
2024.10.01 Titled Tue 1st Oct Late
346744 Koellner, Ruben Gideon (2481) Mahdavi, Reza (2394) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 c6 7. a4 a5 8. b5 c5 9. dxc5 Ne4 10. Nxe4 dxe4 11. Nd4 Nd7 12. c6 Ne5 13. cxb7 Bxb7 14. c5 Bd5 15. Ba3 Nd3+ 16. Bxd3 exd3 17. O-O e5 18. Nf3 e4 19. Nd4 Qg5 20. c6 Bxd4 21. h4 Qxh4 22. exd4 Qg5 23. Bxf8 e3 24. f3 e2 25. Qxd3 exf1=Q+ 26. Rxf1 Rxf8 27. Re1 Rd8 28. Qe3 Qh4 29. Qf2 Qf4 30. Qe3 Qf6 31. c7 Rf8 32. Qe8 Qxd4+ 33. Kh1 Bb7 0-1
2024.09.25 Julius Baer Gen Cup Pl/In
349020 Koellner, Ruben Gideon (2481) Nguyen Ngoc Truong Son (2633) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. Nbd2 Nc6 5. c3 cxd4 6. exd4 Bf5 7. Bb5 e6 8. Ne5 Rc8 9. g4 Bg6 10. h4 Bd6 11. h5 Be4 12. f3 Bxe5 13. dxe5 Nxg4 14. Nxe4 Nxe5 15. Nf2 Qb6 16. Be2 d4 17. Qb3 Qc7 18. Bd2 d3 19. Bd1 O-O 20. f4 Na5 21. Qb5 Nec4 22. Nxd3 Rfd8 23. Be2 Nxd2 24. Kxd2 Qxf4+ 25. Kc2 Qe4 26. Qe5 Rc4 27. Qxe4 Rxe4 28. Rae1 Nc4 29. Bf3 Rxe1 30. Rxe1 b6 31. b3 Na3+ 32. Kd2 Nb5 33. a4 Nd6 34. Kc2 Kf8 35. Ne5 Nf5 36. Be4 g5 37. hxg6 hxg6 38. Bxf5 exf5 39. Nc6 Rd7 40. b4 f4 41. Nd4 Kg7 42. a5 bxa5 43. bxa5 g5 44. Kd3 Kg6 45. c4 Rc7 46. Nb5 Rd7+ 47. Nd4 Rc7 48. Rc1 Rc5 49. Nb3 Rc8 50. c5 g4 51. Nd4 f3 52. c6 a6 53. Ke3 f5 54. Kf4 f2 55. Kg3 Kf6 56. Kxf2 Ke5 57. Ke3 f4+ 58. Kd3 f3 59. Rc5+ Kd6 60. Rg5 Rf8 61. Rg6+ Kd5 62. Rg5+ Kd6 63. Rg6+ Kd5 64. Nc2 f2 65. Ne3+ Kc5 66. Ke2 Kb5 67. c7 Kxa5 68. Rc6 f1=Q+ 69. Nxf1 Rc8 70. Ne3 Kb5 71. Rc1 Kb6 72. Nd5+ Kb7 73. Ke3 a5 74. Kd4 g3 75. Kc5 Rh8 76. Rb1+ Ka7 77. Ne7 1-0
2024.09.25 Julius Baer Gen Cup Pl/In
349059 Koellner, Ruben Gideon (2481) Oparin, G (2662) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 b6 5. Bd3 Bb7 6. Ne5 Bd6 7. f4 O-O 8. Qf3 c5 9. c3 Nc6 10. O-O Ne7 11. g4 g6 12. g5 Ne8 13. h4 f6 14. Ng4 Nf5 15. Qh3 a5 16. Nf3 Ba6 17. Bxa6 Rxa6 18. h5 Ra7 19. Rf2 Rg7 20. hxg6 Rxg6 21. Rh2 Qe7 22. Kf2 fxg5 23. Bd2 cxd4 24. cxd4 gxf4 25. exf4 Nf6 26. Nxf6+ Rfxf6 27. Rc1 Rf8 28. Rch1 Ng3 29. Qxg3 Rxg3 30. Kxg3 Rf7 31. Kg4 Qf6 32. Ng5 Qf5+ 33. Kh4 Rf6 34. Rf1 Rh6+ 35. Kg3 Qxg5+ 0-1
2024.09.25 Julius Baer Gen Cup Pl/In
349191 Vakhidov, J (2571) Koellner, Ruben Gideon (2481) 0-1
1. c4 d6 2. Nc3 Nf6 3. d4 e5 4. Nf3 Nbd7 5. g3 c6 6. e4 Be7 7. Bg2 O-O 8. O-O a6 9. a4 a5 10. Re1 Re8 11. h3 Bf8 12. Be3 exd4 13. Nxd4 Nc5 14. Qc2 Qb6 15. Rab1 Bd7 16. f4 Rad8 17. Bf2 Qc7 18. Rbd1 Bc8 19. Re2 Ne6 20. Nb3 g6 21. Red2 Nd7 22. h4 Nec5 23. Nd4 Nf6 24. Nde2 Ng4 25. Bxc5 dxc5 26. Rxd8 Rxd8 27. Rxd8 Qxd8 28. Qd1 Qxd1+ 29. Nxd1 Bg7 30. Bf3 h5 31. b3 Bd4+ 32. Nxd4 cxd4 33. Be2 Nf6 34. Nf2 Kf8 35. e5 Ne8 36. Kf1 Ng7 37. Bd3 Nf5 38. Ne4 Ne3+ 39. Ke2 Bg4+ 40. Kd2 Bd1 41. Nc5 b6 42. Nd7+ Ke8 43. Nxb6 Bxb3 44. c5 Kd8 45. f5 gxf5 46. Be2 f4 47. gxf4 Ng2 48. Bxh5 Nxh4 49. Kd3 Ng2 50. Kxd4 Nxf4 51. Bf3 Ne6+ 52. Kc3 Nxc5 53. Bxc6 Kc7 54. Bd5 Kxb6 55. Bxb3 Nxb3 56. Kxb3 Kc5 57. Kc3 Kd5 58. Kd3 Kxe5 59. Kc4 f5 60. Kd3 Kf4 61. Ke2 Kg3 62. Kf1 Kf3 63. Ke1 Kg2 0-1
2024.09.25 Julius Baer Gen Cup Pl/In
349257 Gledura, B (2628) Koellner, Ruben Gideon (2481) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O Nb6 7. Be2 exd4 8. Nxd4 O-O 9. a4 a5 10. Re1 Re8 11. Bf1 Bf8 12. Bg5 h6 13. Bh4 Be7 14. Bg3 Nfd7 15. Qd2 Bf6 16. Rad1 Nc5 17. b3 Bd7 18. f3 Bh4 19. Bxh4 Qxh4 20. Re3 Rad8 21. g3 Qf6 22. f4 Ne6 23. Ndb5 Bxb5 24. Nxb5 d5 25. e5 Qg6 26. Bd3 Qg4 27. Be2 Qg6 28. Bd3 Qg4 29. Qe2 Qxe2 30. Bxe2 Re7 31. Bf3 c6 32. Nd6 g6 33. Bg4 Nc8 34. f5 Ng5 35. Nxc8 Rxc8 36. f6 Ree8 37. Bxc8 Rxc8 38. c4 dxc4 39. bxc4 Ne6 40. Rd7 Nc5 41. e6 Nxe6 42. Rxb7 Nc5 43. Ra7 Nxa4 44. Ree7 Rf8 45. Rxa5 Nb6 46. Rc5 Rc8 47. Rb7 Na4 48. Re5 Nc3 49. Rb3 Na4 50. Ra5 1-0
2024.09.25 Julius Baer Gen Cup Pl/In
349314 Koellner, Ruben Gideon (2481) Chigaev, M (2624) 1/2-1/2
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. c3 O-O 6. Bc4 Nc6 7. O-O e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Qe2 Qe7 11. a4 Be6 12. b3 Rfd8 13. Ba3 Qe8 14. Rad1 h6 15. f3 a6 16. a5 Rd7 17. Bxe6 Qxe6 18. Nc4 Rad8 19. Rxd7 Rxd7 20. Rd1 h5 21. Rxd7 Nxd7 22. Qd2 Bf8 23. Bxf8 Kxf8 24. Qg5 Qe7 25. Qxe7+ Kxe7 26. b4 f5 27. Kf2 Ke6 28. Ke3 f4+ 29. Ke2 g5 30. h3 Nf6 31. Nd2 Nd7 32. Nc4 b5 33. Nb2 c5 34. Nd3 c4 35. Nf2 Nf6 36. Kf1 Kf7 37. Ke2 Kg6 38. Kf1 g4 39. hxg4 hxg4 40. Nd1 Kg5 41. Nb2 Kh4 42. Kf2 gxf3 43. gxf3 Kh3 44. Nd1 Nh7 45. Nb2 Ng5 46. Nd1 Kh2 47. Nb2 Kh3 48. Nd1 Kh2 49. Nb2 Kh3 1/2-1/2
2024.09.25 Julius Baer Gen Cup Pl/In
349418 Dominguez Perez, L (2748) Koellner, Ruben Gideon (2481) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. O-O h6 8. Re1 Qc7 9. a5 Nf8 10. d5 Ng6 11. Ra3 O-O 12. Ba2 a6 13. Nd2 cxd5 14. Nxd5 Nxd5 15. Bxd5 Nf4 16. c4 Nxd5 17. exd5 f5 18. b4 e4 19. Bb2 Bg5 20. Bd4 Qf7 21. Nb1 Bd7 22. Nc3 Qg6 23. c5 Rae8 24. Qb1 Bd2 25. c6 Bc8 26. Ne2 f4 27. Rd1 Bg4 28. Rxd2 Bxe2 29. Rxe2 f3 30. Qf1 fxe2 31. Qxe2 bxc6 32. Rg3 Qxg3 33. hxg3 cxd5 34. Qxa6 e3 35. fxe3 1-0
2024.09.25 Julius Baer Gen Cup Pl/In
349527 Koellner, Ruben Gideon (2481) Malakhov, V (2642) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. Nbd2 c6 4. e3 Bf5 5. Ne5 Nbd7 6. g4 Nxe5 7. gxf5 Ned7 8. c4 g6 9. cxd5 cxd5 10. Bd3 Bg7 11. Qb3 Qc7 12. Nf3 O-O 13. Bd2 Rac8 14. O-O Qb6 15. Qxb6 Nxb6 16. Bb4 Rc7 17. Rfc1 Rfc8 18. Rxc7 Rxc7 19. Nd2 Bf8 20. Ba5 Ne8 21. fxg6 hxg6 22. b3 e6 23. Nf1 Be7 24. Ng3 Nd6 25. Ne2 Rc8 26. f3 Nf5 27. Bd2 Bf6 28. Rc1 Rxc1+ 29. Bxc1 Nc8 30. Bxf5 gxf5 31. Ba3 a6 32. Kf2 Na7 33. Bc5 Nc6 34. Nf4 Bd8 35. Nd3 Kg7 36. Bd6 b6 37. Kg3 Bg5 38. Bf4 Be7 39. Bc7 b5 40. Bb6 Bd6+ 41. f4 Nb4 42. Nxb4 Bxb4 43. Bd8 Kg6 44. Kf3 Kh5 45. h3 Kg6 46. a4 bxa4 47. bxa4 Kh5 48. Ke2 Kg6 49. Kd3 Bf8 50. Kc3 Bd6 51. Kb3 Kh5 52. Bf6 Bf8 53. Bg5 a5 54. Bd8 Bb4 55. Kc2 Kg6 56. Kd3 Kh5 57. Ke2 Kg6 58. Bh4 Kh5 59. Bd8 Kg6 60. Kf3 Kh5 61. Kf2 Kg6 62. Bb6 Kh5 63. Bc5 Bc3 64. Be7 Kg6 65. Ke2 Kh5 66. Kd1 Kg6 67. Kc2 Be1 68. Kd3 Kh5 69. Ke2 Bc3 70. Kf1 Kg6 71. Ke2 Kh5 1/2-1/2
2024.09.25 Julius Baer Gen Cup Pl/In
349570 Smirnov, P (2483) Koellner, Ruben Gideon (2481) 1-0
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. d5 Nf8 10. h3 g5 11. a5 Ng6 12. Nh2 Kf8 13. Ng4 Bxg4 14. hxg4 Qc8 15. f3 h5 16. Bxg5 hxg4 17. dxc6 bxc6 18. fxg4 Nxg4 19. Qf3 Rh7 20. Bxe7+ Kxe7 21. Ne2 Rh1+ 22. Kxh1 Qh8+ 23. Kg1 Qh2+ 24. Kf1 Qh1+ 25. Ng1 Nh2+ 26. Kf2 Nxf3 27. Nxf3 Qh6 28. Rh1 Qf4 29. Rae1 Rh8 30. Rxh8 Nxh8 31. Bd3 Qh6 32. b4 Ng6 33. g3 Nf8 34. c4 Ne6 35. Rb1 Nd4 36. b5 cxb5 37. cxb5 Nxf3 38. Kxf3 Qd2 39. Be2 Qxa5 40. Rd1 Qa3+ 41. Rd3 Qb4 42. Rd1 Qb3+ 43. Kf2 f5 44. exf5 Qc2 45. g4 Qc5+ 46. Kf1 Kf6 47. Rd3 e4 48. Rh3 d5 49. Rh6+ Kg5 50. Rh5+ Kf4 51. Rh2 Qc1+ 52. Kg2 Qe1 53. Bf1 Qg3+ 54. Kh1 Qf3+ 55. Kg1 Qxg4+ 56. Rg2 Qh5 57. f6 Ke5 58. Rf2 Qf7 59. Be2 d4 60. Bc4 Qxc4 61. f7 Qc1+ 62. Kg2 Qg5+ 63. Kf1 1-0
2024.09.25 Julius Baer Gen Cup Pl/In
349618 Koellner, Ruben Gideon (2481) Sethuraman, S (2570) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 b6 5. Ne5 Bb7 6. f4 Bd6 7. Bd3 c5 8. Qf3 Nbd7 9. c3 Qc7 10. O-O g6 11. g4 a6 12. a4 h5 13. g5 Ng8 14. Qh3 Ne7 15. Ndf3 Nf5 16. Bd2 Nxe5 17. Nxe5 Kf8 18. Qg2 Kg7 19. Qe2 Qe7 20. Nf3 c4 21. Bc2 b5 22. e4 dxe4 23. Bxe4 Bxe4 24. Qxe4 Rab8 25. axb5 Rxb5 26. Rxa6 Rxb2 27. Rfa1 Rhb8 28. Ra7 R8b7 29. Rxb7 Rxb7 30. Qc6 Rb2 31. Ra8 Rxd2 32. Nxd2 Bxf4 33. Ne4 Nd6 34. h4 Nxe4 35. Qc8 Be3+ 36. Kg2 1-0
2024.09.24 Titled Tue 24th Sep Late
353807 Koellner, Ruben Gideon (2481) Fernandez Siles, L (2189) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 b6 7. Bb2 a5 8. b5 c6 9. a4 dxc4 10. Bxc4 cxb5 11. axb5 Bb7 12. O-O Nbd7 13. Ba3 Re8 14. Qb3 e6 15. Rfd1 Bd5 16. Rac1 Rc8 17. Ne5 Nxe5 18. dxe5 Nd7 19. e4 Bb7 20. f4 Nc5 21. Bxc5 Rxc5 22. Qe3 Qc8 23. Rc3 Bf8 24. Kh1 Rd8 25. Rdc1 a4 26. h3 a3 27. Nb3 Rc7 28. Qxb6 a2 29. Bxe6 Rxc3 30. Bxc8 Rxc1+ 31. Kh2 Rdxc8 32. Qxb7 R8c3 33. Qa6 Rxb3 34. Qxa2 Rxb5 35. e6 fxe6 36. Qxe6+ Kh8 37. Qf6+ Kg8 38. Qe6+ Kh8 39. Qf7 Rc8 40. Qf6+ Bg7 41. Qe6 Rbc5 42. e5 R5c6 43. Qd5 Rc5 44. Qd7 R5c7 45. Qe6 Rc6 46. Qb3 Rc3 47. Qb5 Bh6 48. g3 Rc2+ 49. Kg1 Rd8 50. Qb1 Rcd2 51. Qe4 Rb2 52. Qf3 Rdd2 53. e6 Rb1+ 54. Qf1 Rbd1 55. e7 Rxf1+ 56. Kxf1 1-0
2024.09.24 Titled Tue 24th Sep Late
353952 Elier, Ali (2160) Koellner, Ruben Gideon (2481) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Be3 Be6 7. f3 Nbd7 8. O-O-O Bd6 9. Nb5 Ke7 10. Nxd6 cxd6 11. Kb1 Rhc8 12. g3 a6 13. Bh3 b5 14. Bxe6 fxe6 15. Ne2 Rc6 16. Rd2 Nb6 17. Bxb6 Rxb6 18. Rhd1 Rc8 19. c3 Rbc6 20. g4 Nd7 21. Ng3 Nc5 22. Nf1 Rf8 23. c4 bxc4 24. Ne3 Rxf3 25. Nxc4 Nxe4 26. Rc2 Rf2 27. Rcc1 Rxc4 28. Rxc4 Nd2+ 29. Rxd2 Rxd2 30. g5 Rxh2 31. Rc7+ Ke8 32. Rc6 Kd7 33. Rxa6 e4 34. Ra7+ Kc6 35. Rxg7 e3 36. Kc1 Rh1+ 37. Kc2 e2 38. Rxh7 Rxh7 39. Kd2 Rg7 40. Kxe2 Rxg5 41. Kd3 Rg2 42. Kc3 e5 43. a4 Rg3+ 44. Kb4 e4 45. a5 e3 46. b3 e2 47. a6 e1=Q+ 48. Ka3 Qa1+ 49. Kb4 Qc3+ 50. Ka4 Qxb3+ 51. Ka5 Qb6+ 52. Ka4 Qxa6+ 53. Kb4 Qb6+ 54. Kc4 Qb5+ 55. Kd4 Rg4+ 56. Ke3 Rc4 57. Kd2 Qb3 58. Ke1 Rc2 59. Kd1 Qb2 60. Ke1 Rd2 61. Kf1 Re2 62. Kg1 d5 63. Kf1 d4 64. Kg1 Qd2 65. Kf1 d3 66. Kg1 Qe3+ 67. Kf1 Qf3+ 68. Kg1 Qf4 69. Kh1 d2 70. Kg1 Kd5 71. Kh1 Ke4 72. Kg1 Kf3 73. Kh1 Kg3 74. Kg1 Qe3+ 75. Kh1 Qd3 76. Kg1 Qc2 77. Kh1 Rf2 78. Kg1 Qc5 79. Kh1 d1=Q# 0-1
2024.09.24 Titled Tue 24th Sep Late
354245 Koellner, Ruben Gideon (2481) Svane, R (2629) 1/2-1/2
1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Nbd2 Bd6 5. Bd3 c5 6. c3 Nbd7 7. O-O O-O 8. Re1 Qc7 9. e4 dxe4 10. Nxe4 Nxe4 11. Rxe4 Re8 12. Rh4 Nf8 13. Qc2 Ng6 14. Rh5 cxd4 15. Nxd4 Bd7 16. Nb5 Bxb5 17. Bxb5 Red8 18. Be3 Bf4 19. Bxf4 Qxf4 20. g3 Qd2 21. Rc1 Rd6 22. Bf1 Rad8 23. Rb5 b6 24. Qxd2 Rxd2 25. a4 R8d5 26. Rxd5 exd5 27. b3 Ne5 28. h3 Kf8 29. Kg2 f6 30. a5 Rb2 31. axb6 axb6 32. b4 Ke7 33. Ra1 Rc2 34. Ra7+ Kf8 35. Ra8+ Kf7 36. Ra7+ Kg6 37. Ra3 h5 38. Kg1 Kh6 39. Kg2 g5 40. Ra6 Rxc3 41. Rxb6 Kg6 42. b5 d4 43. Rd6 d3 44. f4 Rc2+ 45. Kh1 gxf4 46. gxf4 Rc1 47. fxe5 Rxf1+ 48. Kg2 Rf5 49. exf6 Rxb5 50. f7+ Kxf7 51. Rxd3 Kg6 52. Kg3 Rg5+ 53. Kh4 Rf5 54. Rd6+ Kh7 55. Re6 Rd5 56. Rc6 Kg7 57. Rb6 Kh7 58. Re6 Kg7 59. Rc6 Kh7 60. Re6 Kg7 61. Rc6 Kh7 62. Re6 1/2-1/2
2024.09.24 Titled Tue 24th Sep Late
354413 Paravyan, D (2620) Koellner, Ruben Gideon (2481) 1-0
1. g3 d5 2. Nf3 Nd7 3. d4 Ngf6 4. Bg2 e6 5. c4 dxc4 6. O-O Rb8 7. a4 a6 8. a5 b5 9. axb6 cxb6 10. Bf4 Rb7 11. Ne5 Nxe5 12. Bxb7 Bxb7 13. Bxe5 Ng4 14. Bf4 Be7 15. e4 h5 16. f3 Nf6 17. Nc3 b5 18. Be3 h4 19. g4 h3 20. Qe2 Qc7 21. Rad1 b4 22. Na4 Rh4 23. Bf2 Rh8 24. Nc5 Bxc5 25. dxc5 Bc6 26. Rd6 Bb5 27. Rfd1 Nd7 28. Qd2 1-0
2024.09.24 Titled Tue 24th Sep Late
354632 Machidon, Cristi (2313) Koellner, Ruben Gideon (2481) 0-1
1. c4 d6 2. d4 e5 3. Nf3 e4 4. Nfd2 f5 5. Nc3 Nf6 6. b4 c5 7. bxc5 dxc5 8. d5 Bd6 9. Nb3 Nbd7 10. e3 O-O 11. Bb2 Ne5 12. Nb5 b6 13. Nxd6 Qxd6 14. Be2 Bd7 15. Qc2 Rae8 16. g3 Re7 17. O-O-O Be8 18. h3 Bh5 19. Bxh5 Nxh5 20. g4 Nd3+ 21. Rxd3 exd3 22. Qxd3 Nf6 23. gxf5 Ne4 24. Qc2 Rxf5 25. f4 Qg6 26. Kb1 Ng3 27. Re1 Rh5 28. Qxg6 hxg6 29. Nd2 Ne4 30. Nf3 Rxh3 31. Ne5 g5 32. f5 Rh2 33. Kc1 Re8 34. Rd1 Rxb2 35. Kxb2 Rxe5 36. d6 Re8 37. d7 Rd8 38. Kc2 Nf6 39. e4 Nxe4 0-1
2024.09.24 Titled Tue 24th Sep Late
354771 Koellner, Ruben Gideon (2481) Bortnyk, Olexandr (2608) 0-1
1. d4 Nf6 2. Nf3 b6 3. Nbd2 Bb7 4. e3 g6 5. Bd3 d5 6. O-O Bg7 7. Ne5 c5 8. c3 O-O 9. f4 e6 10. Qf3 Nc6 11. g4 Nd7 12. Qh3 f5 13. Nxd7 Qxd7 14. Nf3 e5 15. Nxe5 Nxe5 16. fxe5 fxg4 17. Qg2 c4 18. Rxf8+ Rxf8 19. Be2 h5 20. Bd2 Bh6 21. Rf1 Rxf1+ 22. Qxf1 Qf5 23. Bd1 Bc8 24. Ba4 Bg5 25. Qxf5 gxf5 26. Bc6 Be6 27. Kf2 h4 28. b3 cxb3 29. axb3 h3 30. Ke2 g3 0-1
2024.09.24 Titled Tue 24th Sep Late
355033 Spata, G (2399) Koellner, Ruben Gideon (2481) 1-0
1. Nf3 d6 2. d4 Nf6 3. e3 Nbd7 4. c4 e5 5. Nc3 Be7 6. Be2 O-O 7. O-O c6 8. b4 Qc7 9. b5 Re8 10. a4 a5 11. Ba3 c5 12. dxe5 dxe5 13. Qc2 b6 14. Ng5 Nf8 15. Bf3 Bb7 16. Bxb7 Qxb7 17. Rad1 Rad8 18. Nge4 Nxe4 19. Qxe4 Qxe4 20. Nxe4 Ne6 21. Bb2 f6 22. Nc3 Nc7 23. f3 Kf7 24. Kf2 Ke6 25. Ke2 f5 26. Rxd8 Rxd8 27. Rd1 Rxd1 28. Kxd1 e4 29. fxe4 fxe4 30. Nxe4 g6 31. Ke2 Ne8 32. Kf3 h6 33. h3 Bd6 34. Nf2 Bc7 35. Nd3 Nd6 36. Nf4+ Kf7 37. Be5 Ne8 38. Ke4 Bd8 39. Nd5 Ke6 40. g4 h5 41. gxh5 gxh5 42. Nf4+ Kf7 43. Nxh5 Bg5 44. Nf4 Bd8 45. Ng2 Ke6 46. Nf4+ Kf7 47. Nd5 Ke6 48. h4 Bxh4 49. Nxb6 Bf6 50. Bxf6 Nxf6+ 51. Kd3 Nd7 52. Nxd7 Kxd7 53. Ke4 Kd6 54. Kf5 Ke7 55. Ke5 Kd7 56. Kd5 Kc7 57. Kxc5 Kb7 58. Kd4 Ka7 59. c5 Kb8 60. Kd5 Ka8 61. Kc6 Ka7 62. e4 Ka8 63. Kb6 Kb8 64. Kxa5 Kc8 65. Kb4 Kd7 66. a5 Ke6 67. a6 Kd7 68. a7 Ke6 69. a8=Q Ke5 70. Qd5+ Kf4 71. e5 Ke3 72. e6 Kf2 73. e7 Kg3 74. e8=Q Kh2 75. Qe2+ Kg1 76. Qdd1# 1-0
2024.09.10 Titled Tue 10th Sep Late
373926 Bynum, Jacorey (2109) Koellner, Ruben Gideon (2481) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. f3 Be6 7. Be3 Bd6 8. O-O-O Ke7 9. a3 Nbd7 10. g4 c6 11. Nge2 Bc5 12. Bxc5+ Nxc5 13. Ng3 g6 14. g5 Nfd7 15. b4 Na6 16. h4 Nc7 17. Kb2 a5 18. b5 h6 19. a4 hxg5 20. hxg5 Rxh1 21. Nxh1 Rh8 22. Ng3 Nc5 23. Be2 Rh3 24. Rg1 Rh2 25. Ka3 Bd7 26. Nf1 Rh3 27. Ne3 Be6 28. Kb2 Rh2 29. Ka3 Ne8 30. Nf1 Rh3 31. Nd2 Nd6 32. Nb3 Bxb3 33. cxb3 Ne6 34. bxc6 bxc6 35. Rc1 Nd4 36. Bd1 Nxf3 37. Ne2 Kd7 38. Rc3 Nxg5 0-1
2024.09.10 Titled Tue 10th Sep Late
374141 Koellner, Ruben Gideon (2481) Vusatiuk, V (2289) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. c3 O-O 6. Bc4 c5 7. dxc5 dxc5 8. O-O Nc6 9. Qe2 a6 10. a4 Qc7 11. e5 Ng4 12. e6 f5 13. h3 Nge5 14. Ba2 b5 15. Bd5 Bb7 16. axb5 axb5 17. Rxa8 Rxa8 18. Nb3 Nd4 19. cxd4 Bxd5 20. dxe5 Bxb3 21. Qxb5 Bxe6 22. Be3 Ra5 23. Qe8+ Bf8 24. Ng5 Qc8 25. Qxc8 Bxc8 26. Rd1 h6 27. Rd8 Ra8 28. Ne6 Ra1+ 29. Kh2 Bxe6 30. Bxh6 Rb1 31. Bxf8 Kf7 32. Bh6 Rxb2 33. Rf8# 1-0
2024.09.10 Titled Tue 10th Sep Late
374469 Koellner, Ruben Gideon (2481) Ashraf, Artin (2388) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. Nbd2 cxd4 5. exd4 Nc6 6. c3 Bf5 7. Bb5 a6 8. Bxc6+ bxc6 9. Qa4 Qb6 10. Ne5 Rc8 11. Nb3 e6 12. Na5 Qb5 13. Qxb5 cxb5 14. Bd2 Ne4 15. f3 Nxd2 16. Kxd2 b4 17. g4 bxc3+ 18. bxc3 Bg6 19. h4 f6 20. Nxg6 hxg6 21. Rab1 Bd6 22. Rb7 O-O 23. h5 gxh5 24. gxh5 Rf7 25. Rhb1 Bc7 26. Rxc7 Rfxc7 27. Rb3 Kh7 28. Nb7 Rb8 29. Nc5 Rxb3 30. axb3 Rc6 31. Nd3 Kh6 32. Nf4 Kg5 33. Ne2 Kxh5 34. Kd3 e5 35. c4 dxc4+ 36. bxc4 exd4 37. Nxd4 Rc8 38. Ne6 g5 39. c5 Kg6 40. Kc4 Kf7 41. Nd4 Ke7 42. Kd5 Rd8+ 43. Kc4 Kd7 44. Nb3 Re8 45. Nd4 Re5 46. Nb3 f5 47. Kd4 Re1 48. Kd5 g4 49. fxg4 fxg4 50. c6+ Kc7 51. Nd4 g3 52. Nf3 Rd1+ 53. Ke4 g2 54. Ke3 Rf1 55. Ng1 Kxc6 0-1
2024.09.10 Titled Tue 10th Sep Late
374764 Plotkin, Mark (2339) Koellner, Ruben Gideon (2481) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nge2 Nc6 5. h3 d5 6. dxe5 Nxe4 7. Nxe4 dxe4 8. Qxd8+ Nxd8 9. Nc3 Nc6 10. Nd5 Kd8 11. Bg5+ Be7 12. Nxe7 Nxe7 13. Bc4 Be6 14. O-O-O+ Ke8 15. Bxe6 fxe6 16. Rhe1 Rf8 17. Bxe7 Kxe7 18. Rd2 Rad8 19. Rxe4 Rxd2 20. Kxd2 Rxf2+ 21. Re2 Rf1 22. Kc3 g5 23. a4 a5 24. Kc4 Rf4+ 25. Kb5 Rb4+ 26. Kxa5 Rxb2 27. Rf2 h5 28. Rf3 Rxc2 29. Rg3 Rc5+ 30. Kb4 Rxe5 31. Rc3 Kd6 32. Rf3 Rf5 33. Rd3+ Rd5 34. Rf3 h4 35. g3 hxg3 36. Rxg3 b6 37. Rg4 Ke7 38. h4 gxh4 39. Rxh4 Rd4+ 40. Rxd4 c5+ 41. Kc4 cxd4 42. Kxd4 Kd6 43. Kc4 e5 44. Kb5 Kc7 45. Kb4 Kb7 46. Kb5 e4 47. Kc4 Ka6 48. Kd4 Ka5 49. Kxe4 Kxa4 50. Kd3 Kb3 51. Kd2 b5 52. Kc1 Ka2 53. Kc2 b4 54. Kc1 b3 0-1
2024.09.10 Titled Tue 10th Sep Late
374958 Koellner, Ruben Gideon (2481) Borges Feria, Y (2439) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 b6 5. c3 Bb7 6. Bd3 cxd4 7. exd4 d6 8. O-O Be7 9. Qe2 O-O 10. Re1 a6 11. a4 Re8 12. Nf1 Nbd7 13. Ng3 Bf8 14. Bg5 Qc7 15. Rad1 Qc6 16. Bc2 g6 17. h4 h5 18. Qd2 Ng4 19. Ne4 Qc7 20. Nh2 Nxh2 21. Kxh2 Bxe4 22. Rxe4 d5+ 23. Bf4 Bd6 24. Bxd6 Qxd6+ 25. Qf4 Qxf4+ 26. Rxf4 b5 27. a5 Rec8 28. Rd3 Ra7 29. Rdf3 Nf8 30. Re3 Rac7 31. Rff3 Nd7 32. b4 Kg7 33. Bb3 Nf6 34. Kh3 Ne4 35. Bc2 Nxc3 36. Bd3 Na2 37. Rf4 Nxb4 38. Bxg6 Kxg6 39. Rg3+ Kh7 40. Rg5 Rg8 0-1
2024.09.10 Titled Tue 10th Sep Late
375161 Liu, Casper (2289) Koellner, Ruben Gideon (2481) 1/2-1/2
1. d4 d6 2. e4 Nf6 3. Bd3 e5 4. Nf3 Nbd7 5. O-O exd4 6. Nxd4 Be7 7. Nf5 O-O 8. Bg5 h6 9. Bh4 Nc5 10. Nc3 Bxf5 11. exf5 d5 12. Re1 c6 13. a4 a5 14. Ne2 Nfe4 15. Bxe7 Qxe7 16. Ng3 Qf6 17. Bxe4 Nxe4 18. Nxe4 dxe4 19. Rxe4 Rad8 20. Qe1 Qxb2 21. Rb1 Qxc2 22. f6 g6 23. h4 Rd6 24. h5 Rxf6 25. Rxb7 gxh5 26. Re2 Qxa4 27. Re5 Qg4 28. Rb3 Rg6 29. Rg3 Qd4 30. Rxg6+ fxg6 31. Rxa5 Rf7 32. Ra2 Kg7 33. Rd2 Qf6 34. Rc2 Ra7 35. Qe4 g5 36. Rxc6 Ra1+ 37. Kh2 Qf4+ 38. Qxf4 gxf4 39. Rc4 f3 40. Rc7+ Kg6 41. Rc6+ Kg5 42. gxf3 Ra4 43. Rc5+ Kg6 44. Rc6+ Kg5 45. Rc5+ Kg6 46. Rc6+ Kg5 1/2-1/2
2024.09.10 Titled Tue 10th Sep Late
375321 Fieberg, Samuel (2186) Koellner, Ruben Gideon (2481) 1-0
1. Nf3 d5 2. g3 Nd7 3. d4 Nb6 4. Nc3 Bf5 5. Nh4 Bg4 6. h3 Bh5 7. Ng2 f5 8. Nf4 Bf7 9. Nd3 Nf6 10. Bg2 e6 11. b3 Ne4 12. Nxe4 fxe4 13. Ne5 Bd6 14. Nxf7 Kxf7 15. O-O Rf8 16. c4 Be7 17. a4 c6 18. a5 Nd7 19. f3 exf3 20. Rxf3+ Kg8 21. Bf4 Bf6 22. Qd2 dxc4 23. bxc4 e5 24. dxe5 Nxe5 25. Qxd8 Nxf3+ 26. Bxf3 Raxd8 27. Rb1 b6 28. Bxc6 g5 29. Bc7 Rd2 30. Bf3 Rb2 31. Rd1 Kg7 32. axb6 axb6 33. Kg2 Rf7 34. Bb8 Rc2 35. Bd5 Re7 36. Kf3 Rcxe2 37. Rd3 Kg6 38. Bd6 Re8 39. Bc6 R8e6 40. Bd7 R6e4 41. Bc6 Re6 42. Bd7 R6e4 43. g4 Kg7 44. Bf5 Re8 45. Bd7 R8e4 46. Bc6 Re6 47. Bd7 1-0
2024.09.08 6th Bamberg Open 2024
378319 Hrebenshchykova, Yelyzaveta (2299) Koellner, Ruben Gideon (2481) 1/2-1/2
1. Nf3 d5 2. g3 Nd7 3. d4 Nb6 4. Nc3 Bf5 5. Nh4 Bg4 6. Qd3 e6 7. e4 Be7 8. f3 Bxh4 9. fxg4 Bg5 10. h4 Bxc1 11. Rxc1 Nf6 12. g5 Nxe4 13. Nxe4 dxe4 14. Qxe4 Qd6 15. Kf2 O-O-O 16. c3 h6 17. Bg2 c6 18. Rce1 hxg5 19. hxg5 g6 20. Rh4 Qe7 21. Qe5 Rhf8 22. Rg1 1/2-1/2
2024.09.07 6th Bamberg Open 2024
378179 Yelisieiev, Yevhenii (2408) Koellner, Ruben Gideon (2481) 1-0
1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Nbd7 5. Bf4 Bb4 6. cxd5 exd5 7. e3 c5 8. Bd3 c4 9. Bc2 Qa5 10. O-O Bxc3 11. bxc3 O-O 12. Qc1 Re8 13. Nd2 1-0
2024.09.07 6th Bamberg Open 2024
378246 Koellner, Ruben Gideon (2481) Fischer, Edwin (2176) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 g6 4. Nbd2 Bg7 5. b4 a5 6. b5 c5 7. bxc6 bxc6 8. Ba3 O-O 9. Be2 Ba6 10. c4 Re8 11. Rc1 Nbd7 12. O-O Qb6 13. Rb1 Qc7 14. cxd5 Nxd5 15. Rc1 Qb7 16. Ne4 N5f6 17. Nxf6+ Bxf6 18. Bxa6 Rxa6 19. Nd2 Rb6 20. Qc2 Rc8 21. Ne4 Rb8 22. h3 Qa6 23. Rfd1 Bg7 24. Bxe7 Rb2 25. Qxc6 Qxc6 26. Rxc6 Re8 27. Nf6+ Bxf6 28. Bxf6 Nxf6 29. Rxf6 Rxa2 30. d5 Rd8 31. Ra6 Kf8 32. e4 a4 33. Rd3 Ke7 34. g3 Rd7 35. Rd4 a3 36. Rda4 Rb7 37. Rxa3 Re2 38. Ra7 1-0
2024.09.06 6th Bamberg Open 2024
378103 Koellner, Ruben Gideon (2481) Chassard, Cedric (2289) 1-0
1. d4 Nf6 2. Bg5 d5 3. e3 c5 4. Bxf6 gxf6 5. Nc3 Nc6 6. Qh5 e6 7. Nf3 Bd7 8. Bb5 cxd4 9. exd4 f5 10. Bxc6 Bxc6 11. Ne5 Qf6 12. O-O Rg8 13. Rae1 Rg7 14. Qe2 Bd6 15. f4 Qe7 16. Rf3 Kf8 17. Rh3 Re8 18. Qf2 f6 19. Nd3 Qf7 20. Rhe3 Bd7 21. R1e2 Re7 22. a4 Qe8 1-0
2024.09.05 6th Bamberg Open 2024
377956 Koellner, Ruben Gideon (2481) Meulner, Fabian (2084) 1-0
1. d4 d5 2. Nf3 Nf6 3. c3 Nc6 4. Bf4 Bf5 5. Nbd2 e6 6. e3 Bd6 7. Bb5 O-O 8. h4 Ne4 9. Ne5 Nxd2 10. Qxd2 Ne7 11. h5 f6 12. Nf3 Be4 13. Be2 Bxf4 14. exf4 Nf5 15. Kf1 Nd6 16. h6 Bxf3 17. Bxf3 g6 18. Re1 Qd7 19. Qc2 Kf7 20. g3 a5 21. a4 Rac8 22. Kg2 Nf5 23. Qb3 Nd6 24. Bxd5 1-0
2024.09.05 6th Bamberg Open 2024
378025 Feldmann, Johannes (2205) Koellner, Ruben Gideon (2481) 0-1
1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Qc2 Nbd7 8. Bd3 h6 9. Bh4 Nh5 10. Bxe7 Qxe7 11. O-O-O Nb6 12. Kb1 Bd7 13. Nf3 O-O-O 14. Rc1 Kb8 15. Na4 Nxa4 16. Qxa4 Nf6 17. Ne5 Ng4 18. Nxg4 Bxg4 19. Rc3 Bc8 20. Ra3 a6 21. Qc2 g5 22. Rc1 Rd6 23. Rb3 Ka8 24. a4 Rf6 25. Rc3 Qd6 26. g3 h5 27. f4 gxf4 28. gxf4 Re8 29. Qf2 Qb4 30. Bc2 Bf5 31. Bxf5 Rxf5 32. Ra3 Rf6 33. Rg1 Rg6 34. Rg5 Reg8 35. Rxg6 Rxg6 36. a5 Ka7 37. Ka2 Qc4+ 38. Rb3 Qa4+ 39. Ra3 Qc4+ 40. Rb3 Qa4+ 41. Ra3 Qd1 42. Qh4 f6 43. f5 Rg1 44. Qxf6 Qb1+ 45. Kb3 Rg2 46. Ra2 Qd3+ 0-1
2024.09.04 6th Bamberg Open 2024
377880 Strahl, Christian (1970) Koellner, Ruben Gideon (2481) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bg5 Be7 6. Qd2 c6 7. a4 h6 8. Bxf6 Bxf6 9. d5 Be7 10. a5 a6 11. Bc4 O-O 12. O-O Kh8 13. Ne2 Nf6 14. Ng3 Qc7 15. dxc6 bxc6 16. Rfd1 Kh7 17. Qd3 g6 18. h3 Kg7 19. Qe2 Re8 20. Bb3 Bf8 21. c4 Be6 22. Bc2 Reb8 23. b3 Nd7 24. Ne1 Nc5 25. Rdb1 Rb4 26. Nd3 Nxd3 27. Qxd3 Rd8 28. Qc3 Qb8 29. f4 d5 30. cxd5 cxd5 31. Qxe5+ Qxe5 32. fxe5 Bc5+ 33. Kh2 Bd4 34. Ra2 Bxe5 35. Rd1 h5 36. exd5 Rxd5 37. Rxd5 Bxd5 0-1
2024.08.27 Titled Tue 27th Aug Late
392381 Koellner, Ruben Gideon (2490) Avila Bautista, Roberto Al (2170) 1-0
1. d4 Nf6 2. Nf3 c5 3. e3 g6 4. dxc5 Qa5+ 5. Nbd2 Qxc5 6. a3 Bg7 7. b4 Qc7 8. Bb2 O-O 9. c4 b6 10. Be2 d6 11. O-O Bb7 12. Rc1 Nbd7 13. Qb3 Rac8 14. Rfd1 Qb8 15. h3 Qa8 16. Bc3 Ne4 17. Nxe4 Bxe4 18. Bxg7 Kxg7 19. h4 Nf6 20. Qb2 Kg8 21. Ng5 h6 22. Nxe4 Qxe4 23. Rd4 Qe5 24. Qd2 Rc7 25. Bf3 Rfc8 26. b5 Qe6 27. Bc6 Kg7 28. Rd1 Nd7 29. Rf4 f5 30. g4 Ne5 31. Bd5 Qf6 32. gxf5 gxf5 33. Qe2 Kh8 34. Kh1 e6 35. Bc6 Ng6 36. Rfd4 Nxh4 37. Qh5 Ng6 38. Rxd6 Rg8 39. Rd7 Rxd7 40. Rxd7 Qh4+ 41. Qxh4 Nxh4 42. Rxa7 Rd8 43. Rd7 Rb8 44. Rb7 Rd8 45. Rxb6 Rd2 46. Rb8+ Kg7 47. Kg1 Ng6 48. b6 Ne5 49. Bg2 Rd1+ 50. Kh2 Ng4+ 51. Kg3 h5 52. b7 Rb1 53. Rc8 h4+ 54. Kxh4 Nxf2 55. b8=Q 1-0
2024.08.27 Titled Tue 27th Aug Late
392454 Aaron, D (2289) Koellner, Ruben Gideon (2490) 1-0
1. e4 d6 2. d4 Nf6 3. f3 e5 4. Ne2 Nc6 5. c4 exd4 6. Nxd4 g6 7. Be3 Bg7 8. Nc3 O-O 9. Qd2 Re8 10. O-O-O a6 11. h4 h5 12. Be2 Bd7 13. Rdg1 Nxd4 14. Bxd4 b5 15. g4 hxg4 16. h5 gxh5 17. fxg4 hxg4 18. Nd5 Nxe4 19. Bxg4 Nxd2 20. Be6 Rxe6 21. Rxg7+ Kf8 22. Rh8# 1-0
2024.08.20 Titled Tue 20th Aug Early
399145 Koellner, Ruben Gideon (2490) Slovineanu, V (2412) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 c5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bb6 10. b5 Ne7 11. Bb2 Ng6 12. c4 Bd7 13. a4 a5 14. Ba3 Re8 15. cxd5 exd5 16. Nb3 Bg4 17. Be2 Ne4 18. Bb2 Rc8 19. h3 Be6 20. Rc1 Rxc1 21. Qxc1 Qd6 22. Qa1 f6 23. Nbd4 Bc7 24. Ba3 Qd7 25. Rc1 Bb8 26. Nxe6 Qxe6 27. Bd1 Nxf2 28. Kxf2 Qxe3+ 29. Kf1 Bg3 30. Bc5 Qe1+ 31. Nxe1 Rxe1# 0-1
2024.08.20 Titled Tue 20th Aug Early
399471 Shafer, Logan C (2097) Koellner, Ruben Gideon (2490) 0-1
1. e4 d6 2. d4 c5 3. Nf3 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. O-O-O Nxd4 10. Bxd4 Be6 11. h4 a6 12. g4 b5 13. Kb1 Qa5 14. a3 b4 15. Nd5 Bxd5 16. exd5 Rfb8 17. g5 Nxd5 18. Bxg7 Nc3+ 19. Kc1 Kxg7 20. Qd4+ e5 21. Qxd6 Nxd1 22. Qf6+ Kg8 23. Bc4 Qc7 24. h5 Qxc4 25. Qxe5 bxa3 26. b3 Qc3 27. Qxc3 Nxc3 28. hxg6 hxg6 29. f4 a5 30. f5 gxf5 31. g6 fxg6 32. Re1 Rd8 33. b4 Rd1+ 34. Rxd1 Nxd1 35. b5 a2 36. Kxd1 a1=Q+ 0-1
2024.08.20 Titled Tue 20th Aug Early
399702 Koellner, Ruben Gideon (2490) Pavlov, Nikolay (2316) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 b6 5. Bd3 Bb7 6. O-O Be7 7. c3 cxd4 8. exd4 O-O 9. Qe2 d6 10. Re1 Re8 11. a4 a6 12. Nf1 Nbd7 13. Ng3 Bf8 14. Bg5 Qc8 15. Rad1 Bc6 16. Bc2 Qb7 17. Bxf6 Bxf3 18. Qxf3 Qxf3 19. gxf3 Nxf6 20. Ne4 Nd5 21. Bb3 Nf4 22. Ng3 d5 23. Ne2 Nh3+ 24. Kg2 Nxf2 25. Kxf2 Bd6 26. h3 b5 27. axb5 axb5 28. Ra1 b4 29. c4 dxc4 30. Bxc4 e5 31. d5 Bc5+ 32. Kg2 g6 33. Ng3 Bd4 34. Rxa8 Rxa8 35. b3 Ra2+ 36. Re2 Ra1 37. Rd2 f5 38. Ne2 Be3 39. d6+ 1-0
2024.08.20 Titled Tue 20th Aug Early
400110 Gutierrez Olivares, D (2354) Koellner, Ruben Gideon (2490) 1-0
1. Nf3 b6 2. g3 Bb7 3. Bg2 Nf6 4. d3 e6 5. Nbd2 Be7 6. e4 d6 7. O-O c5 8. Re1 O-O 9. b3 Nfd7 10. Bb2 Nc6 11. c3 Rc8 12. a3 Qc7 13. b4 Rfd8 14. h4 h6 15. Nf1 Bf6 16. Qe2 d5 17. Ne3 dxe4 18. dxe4 Nce5 19. Rad1 Nxf3+ 20. Bxf3 Ne5 21. Bg2 Be7 22. f4 Nc6 23. b5 Na5 24. c4 Rxd1 25. Rxd1 Rd8 26. Qg4 Rxd1+ 27. Qxd1 Qd8 28. Qxd8+ Bxd8 29. Bc3 Nb3 30. Be5 a6 31. bxa6 Bxa6 32. Bc3 f6 33. Bh3 Kf7 34. Kf2 Bc7 35. Bf1 g5 36. hxg5 hxg5 37. f5 e5 38. Nd5 Bd8 39. Be2 Bb7 40. Bh5+ Kf8 41. Bd1 Nd4 42. Bxd4 1-0
2024.08.11 17th Arad Open 2024
420215 Koellner, Ruben Gideon (2490) Ongut, Tamas Gunes (2254) 0-1
1. d4 Nf6 2. Bg5 c5 3. d5 d6 4. Nc3 h6 5. Bc1 g6 6. e4 Bg7 7. Nf3 O-O 8. Bc4 a6 9. a4 Nbd7 10. h3 b5 11. axb5 Nb6 12. Be2 axb5 13. Rxa8 Nxa8 14. Nxb5 Nxe4 15. O-O Nc7 16. Re1 Nf6 17. Nxc7 Qxc7 18. Bc4 Re8 19. c3 Qb6 20. b3 Nd7 21. Qd3 Qa5 22. Bb2 Nf8 23. Ra1 Qb6 24. Qd2 e6 25. Nh2 Bb7 26. dxe6 Nxe6 27. Ng4 Qc6 28. Bf1 Ng5 29. Qd3 h5 30. Nh2 Qe4 31. Rd1 Qxd3 32. Bxd3 Ra8 33. Nf1 Ra2 34. Rd2 Ne4 35. Bxe4 Bxe4 36. Ne3 d5 37. f3 d4 38. fxe4 dxe3 39. Rc2 c4 40. b4 e2 41. Kf2 Rxb2 42. Rxb2 e1=Q+ 43. Kxe1 Bxc3+ 44. Rd2 Bxb4 45. Ke2 Bxd2 46. Kxd2 Kg7 47. Kc3 Kf6 48. Kxc4 Ke5 49. Kd3 Kf4 50. Kd4 g5 51. e5 Kg3 52. Ke4 Kxg2 53. Kf5 g4 54. hxg4 h4 55. Kf6 h3 56. Kxf7 h2 57. e6 h1=Q 58. e7 Qf1+ 59. Ke6 Qe2+ 60. Kd6 Qb5 0-1
2024.08.10 17th Arad Open 2024
420175 Veress, Armand (2097) Koellner, Ruben Gideon (2490) 1-0
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. O-O Bc5 6. d3 c6 7. Bc4 d5 8. exd5 cxd5 9. Bb5+ Bd7 10. Bxd7+ Qxd7 11. Nd2 Ne7 12. a4 a5 13. c3 dxc3 14. bxc3 O-O 15. Rb1 Rfc8 16. Rb5 Bd6 17. Qb3 Qc7 18. c4 Bb4 19. g3 b6 20. cxd5 Nf5 21. Nf3 Qb7 22. Be3 Rc3 23. Qb1 Rd8 24. Bxb6 Rxd5 25. Bc5 Qa8 26. Bxb4 Rxb5 27. axb5 axb4 28. Qxb4 Rxd3 29. Ne5 Rd4 30. Qc3 Rd5 31. Ra1 Qd8 32. Qf3 g6 33. Nc6 Qd6 34. Ra8+ Kg7 35. Rd8 Nd4 36. Qxd5 1-0
2024.08.09 17th Arad Open 2024
420126 Warmerdam, Max (2676) Koellner, Ruben Gideon (2490) 1/2-1/2
1. Nf3 Nf6 2. g3 b5 3. e3 a6 4. b3 Bb7 5. c4 bxc4 6. bxc4 c5 7. Bg2 e6 8. Nc3 Be7 9. Rb1 Ra7 10. O-O O-O 11. d4 d6 12. d5 exd5 13. cxd5 Nbd7 14. Nd2 Qc7 15. Nc4 Rb8 16. Bd2 Ba8 17. Rxb8+ Qxb8 18. Na5 Rc7 19. Nc6 Bxc6 20. dxc6 Ne5 21. Qa4 Qc8 22. Rb1 Nxc6 23. Rb6 Nb4 24. Qa5 Bd8 25. a3 Rc6 26. Rxc6 Nxc6 27. Qa4 Ne5 28. Nd5 Ned7 29. h3 Nxd5 30. Bxd5 Bf6 31. Qb3 Ne5 32. Bc3 c4 33. Qa4 h6 34. Bxe5 dxe5 35. Bxc4 a5 36. h4 g6 37. Be2 Qc1+ 38. Kg2 Qc7 39. h5 gxh5 40. Bxh5 Bg7 41. Qe4 Bf8 42. a4 Bb4 43. Be2 Qe7 44. Bc4 Qf6 45. Kf1 Kg7 46. Ke2 Qg5 47. Bd3 Qf6 48. Qg4+ Qg5 49. Qe4 Qf6 50. Kf1 Kf8 51. Qd5 Kg7 52. Bc4 Qf5 53. Bd3 Qh3+ 54. Kg1 Qe6 55. Qe4 Qf6 56. Kf1 Kf8 57. Be2 Kg7 58. Kg2 Be1 59. Bf3 Bb4 60. Kf1 Qa6+ 61. Be2 Qf6 62. Bd1 Qa6+ 63. Be2 Qf6 64. Bd3 Kf8 65. Qg4 Qg5 66. Qd7 Kg7 67. Be4 Qf6 68. Bd5 Qa6+ 69. Kg2 Qf6 1/2-1/2
2024.08.08 17th Arad Open 2024
420069 Koellner, Ruben Gideon (2490) Radeva, Viktoria (2301) 1-0
1. d4 e6 2. Nf3 Nf6 3. Bf4 c5 4. e3 cxd4 5. exd4 b6 6. c4 Bb7 7. Nc3 Be7 8. d5 exd5 9. cxd5 Nh5 10. Be3 Bc5 11. Bxc5 bxc5 12. Qe2+ Qe7 13. Nb5 Qxe2+ 14. Bxe2 O-O 15. Nc7 Nf4 16. Bc4 Nxg2+ 17. Kd2 Nf4 18. Rhe1 a6 19. Nxa8 Bxa8 20. Re5 g6 21. Rae1 d6 22. Re8 Bxd5 23. Bxd5 Nxd5 24. Ng5 Nf6 25. R8e7 Nc6 26. Rb7 Nd5 27. Ne4 Nd4 28. Rd1 Re8 29. Nxd6 Re2+ 30. Kc1 Rxf2 31. Kb1 Ne3 32. Rc1 Ne2 33. Re1 Nd5 34. Ka1 Nb4 35. Kb1 Nd5 36. Ne4 Rxh2 37. Rd7 f5 38. Rxd5 fxe4 39. Rd2 Nc3+ 40. Kc2 Rxd2+ 41. Kxd2 Nxa2 42. Rxe4 Kf7 43. Rc4 Nb4 44. Rxc5 Ke6 45. Kc3 Nd5+ 46. Kd4 Nf6 47. Re5+ Kf7 48. Ra5 Ke6 49. Rxa6+ Kf5 50. b4 h5 51. b5 h4 52. b6 h3 53. b7 Nd7 54. Ke3 h2 55. Ra1 Ke5 56. Rd1 Ke6 57. Kf2 h1=Q 58. Rxh1 Kd6 59. Rd1+ 1-0
2024.08.08 17th Arad Open 2024
420095 Koellner, Ruben Gideon (2490) Lupulescu, C (2583) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. c3 e6 4. Bf4 c5 5. e3 Nc6 6. Nbd2 Be7 7. Bd3 Nh5 8. Be5 Qb6 9. Rb1 cxd4 10. exd4 O-O 11. Ng5 Bxg5 12. Qxh5 Bxd2+ 13. Kxd2 g6 14. Qh4 Nxe5 15. dxe5 Bd7 16. Qd4 Qa5 17. h4 Bb5 18. Bxb5 Qxb5 19. h5 Rac8 20. Qh4 d4 21. hxg6 dxc3+ 22. Ke1 Qxe5+ 23. Kf1 h5 24. gxf7+ Rxf7 25. bxc3 Rxc3 26. Kg1 Rc2 27. Rh3 Rc5 28. Re3 Qf5 29. Rbe1 Qf6 30. Qxf6 1/2-1/2
2024.08.07 17th Arad Open 2024
420021 Idani, P (2595) Koellner, Ruben Gideon (2490) 1/2-1/2
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 b5 7. Bb3 d6 8. a4 b4 9. d4 Ba7 10. h3 O-O 11. Be3 exd4 12. cxd4 Na5 13. Bc2 c5 14. b3 Re8 15. dxc5 Bxc5 16. Re1 Bb7 17. Bxc5 dxc5 18. Qxd8 Raxd8 19. Nbd2 Nd7 20. Bd3 Nb6 21. Bf1 f5 22. exf5 Bxf3 23. Rxe8+ Rxe8 24. gxf3 Rd8 25. Ra2 c4 26. bxc4 b3 27. Nxb3 Nxb3 28. Rb2 Nxa4 29. Rxb3 Nc5 30. Rb6 Rf8 31. Rc6 Rxf5 32. h4 a5 33. Bh3 Re5 34. f4 Re1+ 35. Kg2 Nd3 36. Kf3 a4 37. Ra6 Ra1 38. Be6+ Kf8 39. f5 a3 40. Ra8+ Ke7 41. Ra7+ Kf6 42. Ke4 Nc5+ 43. Kd5 Nxe6 44. fxe6 a2 45. e7 Kf7 46. Kc5 g6 47. f3 h6 48. f4 h5 49. Kc6 Rc1 50. Rxa2 Rxc4+ 51. Kd6 Rd4+ 52. Ke5 Rd7 53. e8=B+ Kxe8 54. Kf6 Rf7+ 55. Kxg6 Rxf4 1/2-1/2
2024.08.06 17th Arad Open 2024
419958 Negrean, Andrei (2279) Koellner, Ruben Gideon (2490) 1/2-1/2
1. Nf3 e6 2. g3 b5 3. Bg2 Bb7 4. O-O Nf6 5. d3 c5 6. Nbd2 d6 7. a4 a6 8. axb5 axb5 9. Rxa8 Bxa8 10. e4 Nbd7 11. Qe2 Be7 12. b3 O-O 13. Bb2 e5 14. Ra1 Qb8 15. Nf1 Re8 16. Ne3 Bf8 17. Nd2 Bc6 18. f4 Qb7 19. f5 Ra8 20. Qe1 Rxa1 21. Qxa1 g6 22. h4 Bh6 23. Ndf1 Qb6 24. c4 bxc4 25. bxc4 Qb3 26. Qa3 Ba4 27. Qxb3 Bxb3 28. Kf2 Nb8 29. g4 Bf4 30. g5 Nh5 31. Bf3 Bxe3+ 32. Kxe3 Nf4 33. Kd2 Nc6 34. Bc3 f6 35. gxf6 Kf7 36. Ne3 Kxf6 37. Nd5+ Nxd5 38. cxd5 Nd4 39. Bxd4 exd4 40. fxg6 hxg6 41. Bd1 Bxd1 42. Kxd1 Ke5 43. Kc2 c4 44. dxc4 Kxe4 45. Kd2 Kf5 46. Kd3 Ke5 47. Ke2 Ke4 48. Kd2 d3 49. c5 Kxd5 50. cxd6 Kxd6 51. Kxd3 Ke5 52. Ke3 Kf5 53. Kf3 g5 54. hxg5 Kxg5 55. Ke4 1/2-1/2
2024.08.06 17th Arad Open 2024
420004 Koellner, Ruben Gideon (2490) Padurariu, Mihai-Edward (2270) 1-0
1. d4 d5 2. Nf3 c5 3. e3 Nf6 4. Nbd2 cxd4 5. exd4 Nc6 6. h3 Qc7 7. c3 Bf5 8. Nh4 Bg6 9. Nxg6 hxg6 10. Nf3 e6 11. Bd3 Nh5 12. O-O Bd6 13. Re1 O-O-O 14. a4 e5 15. dxe5 Nxe5 16. Nxe5 Bxe5 17. Bg5 Bf6 18. Be3 Kb8 19. Be2 Nf4 20. Bf3 g5 21. a5 Qd6 22. Qb3 Rd7 23. Red1 Rhd8 24. Ra4 d4 25. Bxd4 Qe6 26. Qb5 a6 27. Qc5 Ne2+ 28. Bxe2 Qxe2 29. Qa7+ Kc8 30. Rc1 Rc7 31. Bxf6 Rd1+ 32. Kh2 Rxc1 33. Rd4 1-0
2024.08.05 17th Arad Open 2024
419929 Koellner, Ruben Gideon (2490) Danila, Tudor-Gabriel (2128) 1-0
1. d4 Nf6 2. Bg5 e6 3. Nd2 h6 4. Bh4 c5 5. e4 Be7 6. e5 Nd5 7. Bxe7 Qxe7 8. c4 Nc7 9. Ne4 Nc6 10. dxc5 Nxe5 11. Qd4 f6 12. Nd6+ Kf8 13. O-O-O b6 14. cxb6 axb6 15. Nf3 Nxf3 16. gxf3 Ba6 17. Qxb6 Ne8 18. Be2 Bc8 19. c5 Nxd6 20. cxd6 Qe8 21. Kb1 Qh5 22. Qd8+ Kf7 23. Qe7+ Kg8 24. Rhg1 Rh7 25. f4 Qf7 26. Qxf7+ Kxf7 27. Bh5+ Kf8 28. Bg6 Rh8 29. Rc1 Bb7 30. Rc7 Bc6 31. Rc1 h5 32. R1xc6 dxc6 33. Rf7+ Kg8 34. d7 Rh6 35. Re7 1-0
2024.08.04 Cristina Foisor Mem Rapid
433879 Maksimovic, Bojan (2499) Koellner, Ruben Gideon (2490) 1/2-1/2
1. d4 d6 2. Nf3 Nf6 3. c4 Nbd7 4. Nc3 e5 5. e4 Be7 6. Be2 O-O 7. O-O c6 8. Re1 a6 9. d5 cxd5 10. cxd5 b5 11. a3 Nb6 12. h3 Bd7 13. b3 Qb8 14. Bd2 Rc8 15. Rc1 Ra7 16. Bd3 Rac7 17. Qe2 Be8 18. Na2 Rxc1 19. Rxc1 Rxc1+ 20. Nxc1 Bd8 21. Na2 Nbd7 22. b4 Nb6 23. Bc1 Qc7 24. Qc2 Bd7 25. Qxc7 Bxc7 26. Nc3 Kf8 27. Be3 Bc8 28. g4 Ng8 29. Nd2 Ne7 30. f3 f6 31. Kf2 g5 32. Nb3 Ng6 33. Bf1 Nf4 34. Na5 Ke8 35. Kg3 Bd7 36. h4 h6 37. h5 Na8 38. Kf2 Bb6 39. Bxb6 Nxb6 40. Nb3 Kd8 41. Ke3 f5 42. exf5 Nfxd5+ 43. Nxd5 Nxd5+ 44. Kd2 Bc6 45. Bd3 Nf6 46. Be2 Kc7 47. Kd3 Bd5 48. Nd2 Kb6 49. Kc2 Bc6 50. Bd3 d5 51. Be2 Kc7 52. Nb3 Nd7 53. Kd2 Kd6 54. Bd3 e4 55. fxe4 dxe4 56. Be2 Ke5 57. Ke3 Nf6 58. Nc5 Nd5+ 59. Kd2 Nc7 60. Ke3 Nd5+ 61. Kd2 Nc7 62. Ke3 Nd5+ 1/2-1/2
2024.08.04 Cristina Foisor Mem Rapid
433912 Koellner, Ruben Gideon (2490) Motylev, A (2582) 1/2-1/2
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 b6 5. Bd3 Bb7 6. Ne5 a6 7. f4 Nbd7 8. Qf3 c5 9. c3 Qc7 10. O-O Be7 11. g4 g6 12. h4 Bd6 13. h5 Rf8 14. h6 Ng8 15. Qh3 Ne7 16. Ndf3 f6 17. Nxd7 Qxd7 18. g5 f5 19. Bd2 Nc6 20. Qh2 c4 21. Bc2 b5 22. Qe2 a5 23. b3 a4 24. b4 Qc7 1/2-1/2
2024.08.04 Cristina Foisor Mem Rapid
433947 Deac, Bogdan-Daniel (2683) Koellner, Ruben Gideon (2490) 1-0
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. Qb3 b6 6. h3 c5 7. dxc5 bxc5 8. e4 Bd7 9. e5 dxe5 10. Be3 Nc6 11. Bxc5 Bh6 12. Rd1 Qa5 13. Qa3 Qxa3 14. Bxa3 e4 15. Nd4 Nxd4 16. Rxd4 e3 17. Be2 Bc6 18. O-O exf2+ 19. Kxf2 e5 20. Rdd1 Ne4+ 21. Nxe4 Bxe4 22. Rfe1 f6 23. c5 Bc6 24. Rd6 Rc8 25. Bg4 f5 26. Rxe5+ Kf7 27. Bf3 Bf4 28. Bxc6 Bxe5 29. Bd5+ Kg7 30. Rd7+ Kh6 31. c6 Rc7 32. Bc5 Rhc8 33. Bxa7 Rxc6 34. Bxc6 Rxc6 35. Be3+ f4 36. Bd2 Rc2 37. a4 Rxb2 38. Kf3 Ra2 39. a5 g5 40. Ke4 Bb8 41. Kf5 Rb2 42. Rd5 Rb7 43. Bc3 Rf7+ 44. Bf6 Kh5 45. Ke6 Ra7 46. Rxg5+ Kh6 47. Rb5 Bc7 48. Bc3 Kg6 49. Kd5 Ra6 50. Rc5 Ra7 51. a6 Kf7 52. Rc6 Bb8 53. Rb6 Rd7+ 54. Ke4 Ba7 55. Rb7 Ke6 56. Rxd7 Kxd7 57. Bd4 Bb8 58. a7 1-0
2024.08.04 Cristina Foisor Mem Rapid
433998 Koellner, Ruben Gideon (2490) Filip, L (2327) 0-1
1. d4 e6 2. Nf3 Nf6 3. Nbd2 d5 4. e3 Nbd7 5. Bd3 c5 6. c3 Bd6 7. O-O O-O 8. e4 cxd4 9. cxd4 dxe4 10. Nxe4 Nxe4 11. Bxe4 h6 12. Re1 Nf6 13. Bc2 b6 14. Be3 Bb7 15. Rc1 Rc8 16. Ne5 Bb4 17. Rf1 Qd5 18. Qf3 Qxf3 19. Nxf3 Ba6 20. a3 Bxf1 21. Kxf1 Bd6 22. Ke2 Rc7 23. Bd3 Rxc1 24. Bxc1 Rc8 25. Bd2 Nd5 26. g3 Be7 27. Ne5 Bf6 28. f4 Ne7 29. Be4 g6 30. Bc3 Bg7 31. Kd3 Nd5 32. Bd2 Rc7 33. Bf3 Nf6 34. Bc3 Bf8 35. Bd2 Nd7 36. Nc6 Nf6 37. Ne5 Nd5 38. Be4 Kg7 39. Bf3 Bd6 40. Nc4 Be7 41. Ne5 f6 42. Ng4 f5 43. Ne5 g5 44. Bd1 Bf6 45. Bb3 Bxe5 46. dxe5 gxf4 47. gxf4 Kf7 48. Ke2 Rc8 49. Kf2 b5 50. h3 Nb6 51. Be3 Rc7 52. Ke2 Na4 53. Bd4 Rc1 54. Bd1 Rc4 55. Ke3 Nb6 56. Bxb6 axb6 57. h4 b4 58. a4 Re4+ 59. Kf3 Re1 60. Bc2 Rh1 61. Kg3 Rf1 62. b3 Rg1+ 63. Kf3 Rg4 64. Bd3 Rxh4 65. Bf1 Rh2 66. Bg2 Rh4 67. Bf1 Rg4 68. Bh3 h5 69. Bf1 h4 0-1
2024.08.04 Cristina Foisor Mem Rapid
434044 Koellner, Ruben Gideon (2490) Toma, Iustin (2086) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 c5 5. c3 b6 6. Ne5 Nbd7 7. f4 Be7 8. Bd3 Bb7 9. Qf3 O-O 10. O-O g6 11. g4 Ne8 12. g5 Nxe5 13. dxe5 Qc7 14. h4 Ng7 15. Qh3 a5 16. Rf2 a4 17. h5 Nxh5 18. Rh2 Kg7 19. Be2 Rh8 20. Bxh5 gxh5 21. Qxh5 Kf8 22. Qh6+ Kg8 23. Nf1 Bf8 24. Qh3 h5 25. Bd2 Bg7 26. Qf3 d4 27. e4 Qc6 28. Re1 Rd8 29. Rxh5 Rxh5 30. Qxh5 dxc3 31. Bxc3 b5 32. g6 b4 33. gxf7+ Kf8 34. Bd2 Rd7 35. Be3 Rxf7 36. Ng3 c4 37. Qg5 Rd7 38. Rf1 Ke8 39. f5 exf5 40. Qxf5 Kd8 41. e6 Bd4 42. Bxd4 Rxd4 43. Qf6+ 1-0
2024.08.03 Cristina Foisor Mem Rapid
433772 Codru, Raul Cristian (1793) Koellner, Ruben Gideon (2490) 0-1
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. Qb3 b6 6. h3 c5 7. d5 h5 8. Bf4 Bg7 9. Nd2 O-O 10. e4 Bc8 11. Be2 e5 12. Bg5 Qd7 13. O-O Nh7 14. Nf3 Nxg5 15. Nxg5 Qe7 16. Nf3 f5 17. Qc2 Nd7 18. a3 Nf6 19. Bd3 f4 20. b4 Nd7 21. Nb5 Rf7 22. Nc7 Rb8 23. Ne6 Bf6 24. Be2 0-1
2024.08.03 Cristina Foisor Mem Rapid
433803 Koellner, Ruben Gideon (2490) Minescu, D (1981) 1-0
1. d4 d6 2. Nf3 f5 3. Nc3 Nf6 4. Bg5 e6 5. e4 fxe4 6. Nxe4 Be7 7. Bxf6 Bxf6 8. c3 Nc6 9. Bd3 Bd7 10. Qb3 b6 11. O-O-O Be7 12. h4 h6 13. Kb1 d5 14. Ng3 O-O 15. Qc2 Bf6 16. Rde1 Qe7 17. Nh5 Qd6 18. Qe2 Rae8 19. Ne5 Bxe5 20. dxe5 Qc5 21. Qg4 Re7 22. Qg6 Rf5 23. Bxf5 exf5 24. Nf6+ Kf8 25. Nxd7+ Rxd7 26. Qxf5+ Ke8 27. e6 Re7 28. Rd1 d4 29. Qg6+ Kf8 30. cxd4 Nxd4 31. Rhe1 Qc4 32. Qe4 c5 33. Qa8+ Re8 34. e7+ Kf7 35. Qe4 1-0
2024.08.03 Cristina Foisor Mem Rapid
433834 Radu, David Cr. (2159) Koellner, Ruben Gideon (2490) 0-1
1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. c3 Nbd7 5. Nf3 d5 6. dxe5 dxe4 7. exf6 exf3 8. O-O Qxf6 9. Nd2 Ne5 10. Re1 Be7 11. Nxf3 Nxf3+ 12. Qxf3 Qxf3 13. gxf3 Be6 14. Bf4 O-O-O 15. Bf5 Bxf5 16. Rxe7 Rd7 17. Rae1 Be6 18. Rxd7 Kxd7 19. a4 a5 20. b4 Ra8 21. Rd1+ Kc8 22. b5 b6 23. Rd4 Kb7 24. Kg2 Re8 25. c4 Re7 26. Be3 Rd7 27. Rh4 h6 28. c5 bxc5 29. Bxc5 Rd5 30. Be3 Rf5 31. Bd2 Bd5 32. Bxa5 Rxf3 33. Kf1 Ra3 34. Rd4 Be6 35. Kg2 Bh3+ 0-1
2024.08.03 Cristina Foisor Mem Rapid
433857 Koellner, Ruben Gideon (2490) Poltorak, Sebastian (2397) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 a5 6. b5 c5 7. bxc6 Nxc6 8. a4 O-O 9. c3 Re8 10. Bb5 Nd7 11. Qb3 Nf8 12. O-O e5 13. Nxe5 Bxe5 14. dxe5 Rxe5 15. Nf3 Rh5 16. Be2 Qc7 17. Rd1 Be6 18. Rb1 d4 19. c4 dxe3 20. Bxe3 Nb4 21. Qc3 Nd5 22. Qd4 Nxe3 23. Qxe3 Rc5 24. Rdc1 Rc8 25. Nd2 Re5 26. Qf3 Bd7 27. Rxb7 Qc6 28. Rb2 Rce8 29. Bf1 Qxa4 30. Qc3 Qc6 31. Nf3 Rh5 32. c5 Rc8 33. Ne5 Qc7 34. f4 Ne6 35. c6 Rxe5 36. Qxe5 Qxe5 37. fxe5 Rxc6 38. Rxc6 Bxc6 39. Bc4 a4 40. Rb6 Nd4 41. Ra6 Kg7 42. Ra7 Be8 43. e6 Nc6 44. exf7 1-0
2024.07.23 Titled Tue 23rd Jul Late
447596 Wael Sabry, Mina (2045) Koellner, Ruben Gideon (2454) 1-0
1. d4 e6 2. g3 Nf6 3. Bg2 d5 4. Nf3 b5 5. O-O Nbd7 6. a4 b4 7. c3 bxc3 8. Nxc3 c6 9. Bf4 a5 10. Rc1 Ba6 11. Nb1 Qb6 12. b3 Bb4 13. Ne5 Nxe5 14. Bxe5 Be7 15. Nd2 O-O 16. Re1 Nd7 17. e4 Nxe5 18. dxe5 Bb4 19. Re3 Qd4 20. Nf1 Qxd1 21. Rxd1 Rab8 22. Red3 Bxd3 23. Rxd3 Rb6 24. Ne3 Rfb8 25. exd5 cxd5 26. Kf1 Bc5 27. Nxd5 exd5 28. Bxd5 Kf8 29. Bc4 R6b7 30. f4 g6 31. Kg2 Ke7 32. g4 Rd8 33. Rf3 Rd2+ 34. Kh3 Rbd7 35. f5 gxf5 36. gxf5 Bd4 37. f6+ Kd8 38. e6 fxe6 39. f7 Bg7 40. f8=Q+ Bxf8 41. Rxf8+ Ke7 42. Rh8 Kf6 43. Ra8 Rf2 44. Rxa5 e5 45. Ra6+ Kg5 46. Kg3 Rc2 47. h4+ Kh5 48. Kf3 Rc3+ 49. Ke4 Kxh4 50. Kxe5 h5 51. a5 Rc1 52. Ke6 Rd2 53. Rd6 Re1+ 54. Kd7 Ra2 55. a6 Kg5 56. Kc7 h4 57. Rd7 h3 58. Kb7 h2 59. Bd5 Rd1 60. a7 Rda1 61. Kb8 Kf6 62. b4 Ke5 63. Bc6 1-0
2024.07.23 Titled Tue 23rd Jul Late
447838 Koellner, Ruben Gideon (2454) Lemos, Dawton Almino (2169) 0-1
1. Nf3 Nf6 2. e3 g6 3. b3 Bg7 4. Bb2 O-O 5. c4 d6 6. Be2 e5 7. Nc3 Nc6 8. h3 Be6 9. a3 h6 10. d4 exd4 11. exd4 d5 12. O-O Qd6 13. c5 Qd7 14. Bb5 a6 15. Ne5 Qe8 16. Bxc6 bxc6 17. Re1 Nd7 18. Nf3 Qd8 19. b4 a5 20. Qd2 Qb8 21. Ne2 axb4 22. axb4 Qb5 23. g4 Nf6 24. Ng3 Ne4 25. Nxe4 dxe4 26. Rxe4 Bd5 27. Re3 Rxa1+ 28. Bxa1 Ra8 29. Bc3 Ra2 30. Qd3 Qa4 31. Ne5 Qb3 32. Be1 Qb2 33. Qc3 Qb1 34. Nd3 Qd1 35. Qc1 Ra1 36. Qxd1 Rxd1 37. Re8+ Kh7 38. Nf4 Bxd4 39. Nxd5 cxd5 40. Kg2 Bf6 41. Kf3 Rd3+ 42. Ke2 Rb3 43. Rc8 Rb2+ 44. Kf3 Be5 45. Rd8 Rb1 46. Bd2 c6 47. Rc8 Rb2 48. Ke2 Bc3 49. Rxc6 Bxd2 50. Kf3 Bxb4 51. Rc7 Kg7 52. c6 Rc2 53. Rd7 Rxc6 54. Rxd5 Be7 55. Kg2 Bf6 56. Rd2 g5 57. Rd3 Rc4 58. Rf3 Rf4 59. Re3 Kg6 60. Re2 Bd4 61. Rc2 f6 62. Rd2 h5 63. f3 Be5 64. Re2 Rd4 65. Rf2 Bf4 66. Re2 Rd2 67. Rxd2 Bxd2 68. Kf2 Bf4 69. Ke2 hxg4 70. hxg4 Kf7 71. Kd3 Ke6 72. Kd4 Be5+ 73. Ke4 Ba1 74. Kd3 Be5 75. Ke3 Bf4+ 76. Ke4 Bg3 77. Kd4 Bf2+ 78. Ke4 Bc5 79. Kd3 Ke5 80. Kc4 Be3 81. Kd3 Kf4 82. Ke2 Bd4 83. Kf1 Kxf3 84. Ke1 Kxg4 85. Kf1 f5 86. Kg2 f4 87. Kh1 Kf5 88. Kh2 g4 89. Kg2 Bf6 90. Kh2 Ke4 91. Kh1 Kf3 92. Kg1 Kg3 93. Kh1 Kf2 94. Kh2 g3+ 95. Kh3 g2 96. Kh2 g1=Q+ 97. Kh3 Qg3# 0-1
2024.07.23 Titled Tue 23rd Jul Late
447978 Meng, Joshua (2032) Koellner, Ruben Gideon (2454) 1/2-1/2
1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h6 5. g4 Bh7 6. e6 fxe6 7. Bd3 Bxd3 8. Qxd3 Nf6 9. Qg6+ Kd7 10. Nf3 Kc7 11. Bf4+ Kb6 12. Ne5 Qe8 13. Qd3 a5 14. a4 Na6 15. c3 Nd7 16. Ng6 Rg8 17. Nd2 e5 18. Nxe5 Nxe5 19. Bxe5 e6 20. f4 h5 21. Qh7 Be7 22. Qxh5 Qxh5 23. gxh5 Rh8 24. Ke2 Rxh5 25. Rag1 Rg8 26. Rxg7 Rxg7 27. Bxg7 Rxh4 28. Rxh4 Bxh4 29. Nf3 Be7 30. Ng5 c5 31. Nxe6 Kc6 32. dxc5 Bxc5 33. f5 Kd7 34. Nf4 Nc7 35. Be5 Bd6 36. Bxd6 Kxd6 37. f6 Na6 38. f7 Ke7 39. Nxd5+ Kxf7 40. Nb6 Ke6 41. Nc4 Nc5 42. Nxa5 Nxa4 43. Nxb7 Nxb2 44. Kd2 Kd5 45. Na5 Na4 46. c4+ Kd4 47. c5 Nxc5 1/2-1/2
2024.07.23 Titled Tue 23rd Jul Late
448149 Koellner, Ruben Gideon (2454) Odeh, K (1959) 1-0
1. Nf3 d5 2. e3 c6 3. b3 Nf6 4. Bb2 g6 5. Bxf6 exf6 6. d4 Bg7 7. c4 O-O 8. Nc3 Be6 9. cxd5 Bxd5 10. Nxd5 Qxd5 11. Bc4 Qd7 12. O-O b5 13. Be2 Na6 14. Rc1 Rac8 15. a4 Nc7 16. axb5 cxb5 17. Qd2 a6 18. Qa5 Qd6 19. Nd2 Rfe8 20. Bf3 Nd5 21. Ne4 Qb4 22. Qxb4 Nxb4 23. Nc5 a5 24. Be2 Na2 25. Rc2 Nb4 26. Rd2 Rb8 27. Ra1 Bf8 28. Rxa5 Bxc5 29. dxc5 Rec8 30. Rxb5 Rxb5 31. Bxb5 Rxc5 32. Bc4 Nc6 33. f4 Na5 34. Rd8+ Kg7 35. Bd5 Nc6 36. Rd7 Rc1+ 37. Kf2 Na5 38. Rxf7+ Kh6 39. Rxf6 Rb1 40. g4 Nxb3 41. Bxb3 Rxb3 42. Rf7 g5 43. Rf6+ Kg7 44. fxg5 Rb5 45. h4 1-0
2024.07.23 Titled Tue 23rd Jul Late
448391 Montero Martinez, C (2004) Koellner, Ruben Gideon (2454) 0-1
1. e4 c6 2. d3 d5 3. Nd2 Nf6 4. g3 dxe4 5. Nxe4 Nxe4 6. dxe4 Qxd1+ 7. Kxd1 e5 8. Be3 Be6 9. c3 Nd7 10. Kc2 Bc5 11. Bxc5 Nxc5 12. f3 O-O-O 13. b4 Na4 14. Nh3 f6 15. Nf2 b5 16. Nd3 Rd6 17. Nc5 Nxc5 18. bxc5 Rd7 19. Bd3 Rhd8 20. Rhd1 a6 21. a4 Kb7 22. axb5 axb5 23. Be2 Rxd1 24. Rxd1 Ra8 25. Rb1 Ra2+ 26. Rb2 Ra1 27. c4 b4 28. Rxb4+ Kc7 29. Rb1 Ra5 30. Kc3 Ra2 31. Rb2 Ra1 32. Bd3 Rc1+ 33. Rc2 Rg1 34. Ra2 Kb7 35. Rb2+ Kc7 36. Ra2 Bc8 37. Rf2 Rc1+ 38. Kd2 Ra1 39. f4 Be6 40. fxe5 fxe5 41. Ke3 Ra3 42. Rc2 Ra5 43. Rf2 Rxc5 44. Rf8 Kd6 45. Rd8+ Ke7 46. Rh8 h6 47. Ra8 Bxc4 48. Ra7+ Kf6 49. Rc7 Be6 50. h4 g5 51. hxg5+ hxg5 52. Kd2 Bb3 53. Rc8 Ke7 54. Rc7+ Kd6 55. Rg7 Ra5 56. Rxg5 Be6 57. Rg6 Ra2+ 0-1
2024.07.23 Titled Tue 23rd Jul Late
448644 Bambino Filho, A (2168) Koellner, Ruben Gideon (2454) 0-1
1. d4 c6 2. c4 d5 3. Nf3 Nf6 4. e3 Nbd7 5. Be2 e6 6. O-O Bd6 7. Qc2 O-O 8. Nbd2 e5 9. dxe5 Nxe5 10. Nxe5 Bxe5 11. Nf3 Bc7 12. b3 dxc4 13. Qxc4 Be6 14. Qh4 Nd5 15. Qxd8 Raxd8 16. Bb2 h6 17. Rfd1 Nb4 18. Ba3 a5 19. Nd4 Bc8 20. Bxb4 axb4 21. Nc2 Be5 22. Rxd8 Rxd8 23. Rd1 Rxd1+ 24. Bxd1 Bc3 25. Bf3 Bf5 26. e4 Be6 27. Kf1 Kf8 28. Ke2 Ke7 29. Kd3 Kd6 30. Be2 b5 31. f4 f6 32. Ne3 g6 33. Bg4 Bf7 34. Nd1 Ba1 35. Ne3 h5 36. Bf3 Bb2 37. g3 Kc5 38. Ng2 Bd4 39. h3 Bf2 40. g4 h4 41. e5 fxe5 42. fxe5 Bg3 43. Be4 g5 44. Ne3 Bxe5 45. Nf5 Be6 46. Nh6 Kd6 47. Nf5+ Kd7 48. Nh6 Kc7 49. Nf5 c5 50. Ne3 Bd4 51. Nc2 Bb2 52. Ne3 Kd6 53. Nf5+ Ke5 54. Ke3 c4 55. bxc4 bxc4 56. Kf3 c3 57. Ne3 Bxa2 58. Bd3 Bc1 59. Nc2 b3 60. Nb4 Ba3 0-1
2024.07.23 Titled Tue 23rd Jul Late
448687 Koellner, Ruben Gideon (2454) Gimenez Aguirre, Alejo Ismael (2204) 1-0
1. Nf3 Nf6 2. e3 d5 3. d4 c5 4. Nbd2 e6 5. c3 Nc6 6. Bd3 Bd6 7. O-O b6 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Bb7 11. Qa4 Qd7 12. dxc5 Bxc5 13. Rd1 Qc7 14. Bf4 b5 15. Bxc7 bxa4 16. Ne5 Rc8 17. Bxc6+ Bxc6 18. Nxc6 O-O 19. Rd7 f5 20. Ne7+ Bxe7 21. Rxe7 a3 22. bxa3 1-0
2024.07.23 Titled Tue 23rd Jul Late
449013 Al Tarbosh, W (2251) Koellner, Ruben Gideon (2454) 0-1
1. e4 c6 2. Nc3 d5 3. Nf3 Nf6 4. e5 Ne4 5. Ne2 e6 6. d3 Nc5 7. Ng3 Ncd7 8. d4 c5 9. c3 Nc6 10. Bd3 cxd4 11. cxd4 Bb4+ 12. Bd2 Bxd2+ 13. Qxd2 Qa5 14. Qxa5 Nxa5 15. O-O Nc6 16. Rac1 a6 17. a3 h6 18. b4 Ke7 19. Nh5 g6 20. Nf4 g5 21. Ne2 Nb6 22. h3 Bd7 23. Ng3 Rac8 24. Nh5 Na7 25. Nf6 Bb5 26. Bxb5 Nxb5 27. Ra1 Na4 28. Rfc1 Nbc3 29. Kh2 Rc4 30. Rc2 Rhc8 31. Ng4 Ne4 32. Re2 h5 33. Ne3 Rc3 34. Ne1 Rc1 35. Rxc1 Rxc1 36. N1c2 Nac3 37. Re1 Rxe1 38. Nxe1 Nxf2 39. Nf3 Nfe4 40. g4 h4 41. Nc2 Ne2 42. Kg2 Nf4+ 43. Kh2 Nd3 44. Kg2 f6 45. Kh2 f5 46. gxf5 exf5 47. Kg2 Nf4+ 48. Kh2 Ke6 49. Ne3 Ng6 50. Kg2 Nf4+ 51. Kh2 b6 52. Nc2 Ng6 53. Ne3 Nf4 54. a4 Nd3 55. b5 a5 56. Nc2 Nf4 57. Ne3 Ne2 58. Nd1 g4 59. hxg4 fxg4 60. Nxh4 g3+ 61. Kg2 Nxd4 62. Ne3 Kxe5 63. Ng4+ Kd6 64. Nh6 Ne6 65. N6f5+ Kc5 66. Ng6 Nd4 67. Nge7 Nxf5 68. Nxf5 Kb4 69. Nd4 Kxa4 70. Kf3 Kb4 71. Ke3 Kc4 72. Ne2 g2 73. Kf3 a4 0-1
2024.07.23 Titled Tue 23rd Jul Late
449128 Koellner, Ruben Gideon (2454) Akhilbay, Imangali (2255) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O Nc6 7. c3 e5 8. dxe5 dxe5 9. Qe2 Qe7 10. a4 a5 11. b3 Rd8 12. Ng5 Be6 13. Nxe6 fxe6 14. Nf3 h6 15. Ba3 Qf7 16. Bb5 Nh5 17. g3 Kh7 18. Kg2 Ne7 19. Rad1 c6 20. Bc4 Nd5 21. exd5 exd5 22. Nxe5 Bxe5 23. Bd3 Nf4+ 24. gxf4 Qxf4 25. Rh1 Re8 26. Bc1 Qh4 27. Be3 Bf4 28. h3 Re5 29. f3 Bxe3 30. f4 Bxf4 31. Qf3 Rf8 32. Rhe1 Rxe1 33. Rxe1 Qxe1 34. Qg4 Qd2+ 35. Kg1 Qxd3 36. Qd7+ Kg8 37. Qe7 Qe3+ 38. Qxe3 Bxe3+ 39. Kg2 Rf2+ 40. Kg3 Rc2 41. Kg4 Rxc3 42. h4 h5+ 43. Kf3 Bb6+ 44. Ke2 Rxb3 45. Kd2 d4 46. Kc2 Rg3 47. Kd2 d3 48. Kc3 Bc5 49. Kc4 Be7 50. Kd4 d2 51. Kc4 b5+ 52. axb5 d1=Q 53. bxc6 Qd3# 0-1
2024.07.21 37th Sonnenterrasse Open
453813 Koellner, Ruben Gideon (2454) Rogic, D (2403) 1-0
1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 b6 6. Bb5 Bd7 7. c3 a6 8. Bd3 g6 9. Ne5 Bg7 10. h4 Qc8 11. Ndf3 Be6 12. Ng5 Nxe5 13. Bxe5 Bf5 14. Be2 h6 15. Nh3 cxd4 16. Qxd4 O-O 17. g4 Bd7 18. Nf4 Bxg4 19. Nxd5 Qb7 20. Bxf6 exf6 21. Qxg4 Qxd5 22. Bf3 Qb5 23. Bxa8 Qxb2 24. O-O Rxa8 25. h5 Re8 26. hxg6 Re5 27. gxf7+ Kxf7 28. f4 Rxe3 29. Rad1 Bf8 30. Rf2 Qxc3 31. Qh5+ Ke7 32. Kh2 Qc5 33. Qg4 Re6 34. Rfd2 Qc6 35. Qg6 Qc8 36. Rd7+ 1-0
2024.07.20 37th Sonnenterrasse Open
453804 Lerch, Johannes (2208) Koellner, Ruben Gideon (2454) 1/2-1/2
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nbd2 Nxe4 8. d5 Ne7 9. O-O Nxd2 10. Nxd2 c6 11. Qb3 cxd5 1/2-1/2
2024.07.19 37th Sonnenterrasse Open
453794 Koellner, Ruben Gideon (2454) Chassard, Cedric (2244) 1-0
1. d4 Nf6 2. Nf3 d5 3. c3 e6 4. Bf4 c5 5. e3 Nc6 6. Nbd2 Bd6 7. Bg3 O-O 8. Bd3 a5 9. Ne5 Qc7 10. f4 Ne7 11. Bh4 Ne8 12. Bxe7 Qxe7 13. O-O g6 14. Qf3 f6 15. Ng4 e5 16. fxe5 Bxg4 17. exd6 Qe6 18. Qf4 c4 19. Bc2 Nxd6 20. h3 Bf5 21. Bxf5 Nxf5 22. e4 Nd6 23. exd5 Qxd5 24. Rae1 Rf7 25. Re2 Re8 26. Rxe8+ Nxe8 27. Re1 Nd6 28. Ne4 Nxe4 29. Qxe4 Qd6 30. Qe6 Qg3 31. Re2 Qd3 32. Qe4 Qd1+ 33. Re1 Qh5 34. d5 Qe5 35. Qxe5 fxe5 36. Rxe5 Kg7 37. a4 Kf6 38. Re6+ Kf5 39. Rb6 Kf4 40. Rb5 Re7 41. Kf2 Re3 42. Rc5 Rd3 43. Rxc4+ Ke5 44. Rd4 1-0
2024.07.18 37th Sonnenterrasse Open
453784 Zelcic, R (2453) Koellner, Ruben Gideon (2454) 0-1
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 b5 7. Bb3 d6 8. d4 Bb6 9. a4 Bg4 10. h3 Bh5 11. Bg5 Rb8 12. d5 Ne7 13. Bxf6 gxf6 14. Kh2 Rg8 15. axb5 axb5 16. Qd3 Ng6 17. g3 Ke7 18. Bd1 Qf8 19. Na3 Qg7 20. Qd2 Kf8 21. Rg1 Ne7 22. Nxe5 fxe5 23. Bxh5 Qg5 24. Qxg5 Rxg5 25. g4 Ng8 26. h4 Rg7 27. Kg3 Nf6 28. Kf3 Ke7 29. b4 Rbg8 30. Rg3 Bxf2 31. Kxf2 Nxh5 32. Rgg1 Rxg4 33. Rxg4 Rxg4 34. Nxb5 Nf6 35. Ra7 Nxe4+ 36. Kf1 f5 37. Nxc7 f4 38. Ne6+ Kf6 39. Rxh7 Nxc3 40. Ng5 e4 41. b5 e3 42. Rh6+ Kf5 43. Re6 Nxb5 44. Re8 Rxh4 45. Nf3 Rh3 46. Rf8+ Kg4 0-1
2024.07.17 37th Sonnenterrasse Open
453774 Koellner, Ruben Gideon (2454) Ostovic, M (2376) 1-0
1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. f3 Qa5+ 5. c3 Nf6 6. d5 e6 7. e4 exd5 8. exd5 d6 9. Qe2+ Be7 10. Bxd6 Nxd5 11. Bxb8 Rxb8 12. Qe5 Qb6 13. Qxb8 O-O 14. Nd2 Ne3 15. Qe5 Nc2+ 16. Kd1 Bf6 17. Nc4 Bxe5 18. Nxb6 Nxa1 19. Nxc8 Rd8+ 20. Ke2 Bf4 21. Kf2 Rxc8 22. Bd3 Re8 23. Nh3 Be3+ 24. Kg3 c4 25. Be4 Re5 26. Re1 f5 27. Rxe3 fxe4 28. Rxe4 Rb5 29. Rxc4 Rxb2 30. Ng5 Kf8 31. Rc7 Nc2 32. Ne6+ Ke8 33. Nxg7+ Kf8 34. Ne6+ Kg8 35. Kf4 a5 36. Rg7+ Kh8 37. Rd7 h6 38. Rd2 Rxa2 39. Ke5 h5 40. Kf6 Kh7 41. Rd7+ Kh6 42. Ng5 1-0
2024.07.16 37th Sonnenterrasse Open
453764 Weishaeutel, Moritz (2398) Koellner, Ruben Gideon (2454) 0-1
1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nbd7 5. Bf4 dxc4 6. e3 b5 7. Nxb5 Bb4+ 8. Nc3 Nd5 9. a3 Nxc3 10. Qd2 Nd5 11. axb4 Nxf4 12. exf4 Bb7 13. Be2 Nb6 14. O-O Qd6 15. Ne5 f6 16. Bh5+ g6 17. Bf3 Bd5 18. Bxd5 exd5 19. Nf3 Kd7 20. Rfe1 Rhe8 21. Rxe8 Rxe8 22. Rxa7 Qe6 23. h3 Qe2 24. Qc1 Qe7 25. h4 Ra8 26. Rxa8 Nxa8 27. f5 gxf5 28. Qf4 Kc6 29. Qxf5 Nb6 30. h5 Kb5 31. h6 c6 32. g4 Na4 33. g5 fxg5 34. Nxg5 Nxb2 35. Nxh7 Qh4 36. Nf6 Qxh6 37. Ng4 Qg7 38. Kh2 Qxd4 39. Ne3 Nd1 40. Nxd1 Qxd1 41. Qh7 c3 42. Qb7+ Kc4 43. Qxc6+ Kb3 44. b5 c2 0-1
2024.07.15 37th Sonnenterrasse Open
453754 Koellner, Ruben Gideon (2454) Lavrencic, Matic (2318) 1/2-1/2
1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Nc6 5. Nbd2 Nh5 6. dxc5 Nxf4 7. exf4 a5 8. a4 g6 9. c3 Bg7 10. Bb5 O-O 11. O-O Qc7 12. Re1 d4 13. Bxc6 dxc3 14. Bb5 cxd2 15. Qxd2 Qxc5 16. Rac1 Qd6 17. Qxd6 exd6 18. Rc7 Bg4 19. Ng5 Rac8 20. Rxb7 h6 21. h3 hxg5 22. hxg4 gxf4 23. b3 d5 24. Rd7 Rfd8 25. Rxd8+ Rxd8 26. Re8+ Rxe8 27. Bxe8 Bc3 28. Kf1 g5 29. Ke2 Kg7 30. Kd3 d4 31. Bc6 Kf6 32. Ke4 Ke7 33. Bb5 f6 34. Kd5 Kf7 35. Kd6 Bb4+ 36. Kd7 Kg7 37. Ke6 Bc3 38. Bd3 Bb4 39. Kd5 Bc3 40. b4 Bxb4 41. Kxd4 1/2-1/2
2024.07.14 37th Sonnenterrasse Open
465198 Koellner, Ruben Gideon (2454) Tumur-Ochir, Duluu (2143) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c6 4. Nbd2 e6 5. Bd3 Nbd7 6. O-O Be7 7. b3 b6 8. Bb2 Bb7 9. Ne5 O-O 10. f4 c5 11. Qf3 Qc8 12. c3 c4 13. Bc2 cxb3 14. axb3 g6 15. Rfc1 Ne8 16. Qh3 f5 17. Ndf3 Qd8 18. c4 Nxe5 19. Nxe5 Bd6 20. Bd3 dxc4 21. bxc4 Nf6 22. Rd1 Ne4 23. d5 Bxe5 24. Bxe5 exd5 25. cxd5 Nd6 26. Be2 a5 27. g4 Bc8 28. Qh6 Rf7 29. Rac1 fxg4 30. Rc6 Nf5 31. Rxg6+ 1-0
2024.07.14 37th Sonnenterrasse Open
465208 Kunz, A (2178) Koellner, Ruben Gideon (2454) 0-1
1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. c3 Nbd7 5. Nf3 d5 6. dxe5 dxe4 7. exf6 exf3 8. O-O Qxf6 9. Re1+ Be7 10. Be3 Ne5 11. Bd4 Qg5 12. Bf1 Nc6 13. Qxf3 Nxd4 14. cxd4 O-O 15. Nc3 Bd6 16. Ne4 Qf4 17. Qxf4 Bxf4 18. g3 Bh6 19. f4 g6 20. Nf6+ Kh8 21. Ne8 Bf5 22. Nxc7 Rad8 23. Rad1 Bg7 24. Nb5 a6 25. Nc3 Bxd4+ 26. Kg2 Be6 27. a3 Kg7 28. Be2 Bb3 29. Ra1 Bf6 30. Bf3 Rd2+ 31. Re2 Rfd8 32. Re1 Bc4 33. Ne4 Rxe2+ 34. Bxe2 Bd5 35. Bf3 Bxb2 36. a4 Bc6 37. Re2 Bd4 38. Rd2 b6 39. Nc3 Be8 40. Bb7 b5 41. axb5 axb5 42. Ne2 Bf6 43. Rxd8 Bxd8 44. Nd4 Bb6 45. Bc6 Bxc6+ 46. Nxc6 f5 47. Kf3 Kf6 48. h3 Ke6 49. g4 Kd6 50. Ne5 Bd4 51. Nf7+ Ke7 52. Ng5 h5 53. gxf5 gxf5 54. Nh7 h4 0-1
2024.07.13 43rd St Veit Open 2024
467456 Koellner, Ruben Gideon (2454) Schwarhofer, C (2292) 1-0
1. d4 f5 2. Bg5 h6 3. Bh4 g5 4. Bg3 d6 5. e3 Nf6 6. Nc3 c6 7. h4 Rg8 8. hxg5 hxg5 9. Bc4 e6 10. a3 Qe7 11. Bb3 Nbd7 12. Qd3 Nb6 13. f3 Bd7 14. e4 f4 15. Bf2 O-O-O 16. O-O-O Be8 17. d5 exd5 18. Bxb6 axb6 19. exd5 c5 20. Nh3 Nd7 21. Ba4 Bg6 22. Bxd7+ Qxd7 23. Qc4 Bf5 24. Nb5 Re8 25. Qa4 Kd8 26. Rde1 Re5 27. Rxe5 dxe5 28. Re1 Qe8 29. Qa8+ Bc8 30. Na7 Kc7 31. Rxe5 Qd7 32. Nxg5 1-0
2024.07.12 43rd St Veit Open 2024
467421 Mazi, L (2309) Koellner, Ruben Gideon (2454) 1/2-1/2
1. Nf3 d5 2. g3 Nd7 3. d4 Nb6 4. Bg2 Bf5 5. Nh4 Bg4 6. h3 Bh5 7. Nd2 e6 8. c3 Be7 9. Nhf3 Nf6 10. Ne5 Nfd7 11. Nd3 Bd6 12. a4 a5 13. O-O O-O 14. Re1 c5 15. dxc5 Nxc5 16. Nxc5 Bxc5 17. Nb3 Be7 18. Nd4 Nc4 19. Qb3 Bc5 20. e4 Bxd4 21. cxd4 Qb6 22. Qc3 Rac8 23. exd5 exd5 24. Bxd5 Nd6 25. Qb3 Qxd4 26. Be3 Qf6 27. Bd2 Bg6 28. Bc3 Qf5 29. Bg2 Rfe8 30. Qd5 Qxd5 31. Bxd5 h6 32. Rxe8+ Rxe8 33. Re1 Rxe1+ 34. Bxe1 b6 35. f3 Bf5 36. Bf2 Nc8 37. g4 Bd7 38. Bb7 Kf8 39. Bd4 f6 40. Kf2 Ke7 41. h4 Kd6 42. Bxc8 Bxc8 43. Bxb6 Bd7 44. Bxa5 Bxa4 45. Bb4+ Ke6 46. h5 f5 47. Bc3 fxg4 48. fxg4 Bd1 49. Kg3 Kf7 50. b4 Be2 51. Kf4 g6 52. hxg6+ Kxg6 53. Bd4 Bb5 54. Bc5 Be2 55. Bf8 Bb5 56. Bxh6 Kxh6 57. Ke4 1/2-1/2
2024.07.11 43rd St Veit Open 2024
467385 Koellner, Ruben Gideon (2454) Schernthaner, David (2329) 1-0
1. d4 Nf6 2. Nf3 e6 3. Bf4 c5 4. e3 d5 5. c3 Bd6 6. Ne5 Qc7 7. Nd2 Nc6 8. Ndf3 Nd7 9. Nxc6 bxc6 10. Bxd6 Qxd6 11. Qa4 cxd4 12. cxd4 Rb8 13. b3 Qb4+ 14. Qxb4 Rxb4 15. Rc1 Rb6 16. Kd2 Ke7 17. Ne1 Kd6 18. Nd3 Ba6 19. Nc5 Bxf1 20. Rhxf1 Rb5 21. Nxd7 Kxd7 22. Rc2 Kd6 23. Rfc1 Rc8 24. Rc5 Rxc5 25. Rxc5 Kc7 26. f3 f5 27. h3 g5 28. g4 fxg4 29. hxg4 h5 30. gxh5 Rh8 31. b4 Kb6 32. a4 Rxh5 33. b5 cxb5 34. Rxb5+ Kc7 35. Rc5+ Kb7 36. e4 Rh3 37. exd5 exd5 38. Ke2 g4 39. fxg4 Rg3 40. Rxd5 Rxg4 41. Kd3 Rg1 42. Rc5 Ra1 43. Rc4 Kb6 44. d5 Rh1 45. Rc6+ Ka5 46. Kc4 Rc1+ 47. Kd4 Rd1+ 48. Kc5 Rc1+ 49. Kd6 Rh1 50. Rc4 Kb6 51. Rb4+ Ka5 52. Kc5 a6 53. Rc4 Rh7 54. d6 Rc7+ 55. Kd5 Rh7 56. Rd4 Kb6 57. Rb4+ Ka5 58. Rb8 Kxa4 59. Kc6 Rh6 60. Kc7 a5 61. d7 Rh7 62. Kc8 Rh8+ 63. d8=Q Rxd8+ 64. Kxd8 Ka3 65. Kc7 a4 66. Kc6 Ka2 67. Kb5 a3 68. Ka4 1-0
2024.07.10 43rd St Veit Open 2024
467349 Kuegel, T (2416) Koellner, Ruben Gideon (2454) 1/2-1/2
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. b4 Bb6 7. e5 d5 8. exf6 dxc4 9. Qe2+ Be6 10. b5 Nb4 11. cxb4 Qxf6 12. O-O O-O 13. a4 a6 14. a5 axb5 15. Nc3 dxc3 16. Bg5 Qg6 17. axb6 c5 18. Be7 cxb4 19. Bxb4 Bd5 20. Bxf8 Rxf8 21. Rfe1 h6 22. g3 Qd3 23. Qxd3 cxd3 24. Re3 Bc4 25. Ne5 Rd8 26. Nxc4 bxc4 27. Re4 d2 28. Rxc4 d1=Q+ 29. Rxd1 Rxd1+ 30. Kg2 Rb1 31. Rxc3 Rxb6 32. Rc8+ Kh7 33. Rc7 Kg6 34. h4 Kf6 35. g4 g5 36. h5 Ke6 37. f3 f5 38. gxf5+ Kxf5 39. Kg3 Ke5 40. Rh7 Kf5 41. Re7 Kf6 42. Rh7 Ke5 43. Kg4 Rb4+ 1/2-1/2
2024.07.09 43rd St Veit Open 2024
467313 Koellner, Ruben Gideon (2454) Bosiocic, Mari (2559) 1-0
1. d4 d5 2. Nf3 Nf6 3. c3 c5 4. dxc5 e6 5. Be3 Nc6 6. b4 Be7 7. g3 O-O 8. Bg2 b6 9. cxb6 Ng4 10. Bd4 axb6 11. O-O Qc7 12. a4 Bd7 13. h3 Nh6 14. b5 Nxd4 15. Nxd4 Rfc8 16. e4 e5 17. Nc6 Bxc6 18. bxc6 dxe4 19. Bxe4 b5 20. Qc2 f5 21. Bxf5 Nxf5 22. Qxf5 bxa4 23. Qe6+ Kh8 24. Re1 Bf8 25. Rxe5 Qxc6 26. Qxc6 Rxc6 27. Re2 Rb6 28. Rea2 Rab8 29. Nd2 a3 30. Rxa3 Bxa3 31. Rxa3 Rb2 32. Ne4 Re2 33. Ra4 Rf8 34. Kf1 Rc2 35. h4 h6 36. Ra7 Kh7 37. Re7 Kg6 38. Kg1 Rc1+ 39. Kg2 Rf5 40. c4 Rc2 41. c5 Rf8 42. h5+ Kh7 43. Kh3 Kg8 44. Kg4 Rd8 45. Kf5 Kh7 46. f4 Rc4 47. Nf6+ Kh8 48. Nd7 Kh7 49. Nf6+ Kh8 50. Nd7 Kh7 51. g4 Rc1 52. Nf6+ Kh8 53. Nd7 Kh7 54. Ke6 Kg8 55. Kd6 Rc8 56. Ke6 Re1+ 57. Kd6 Rd1+ 58. Ke6 Re1+ 59. Kd6 Rg1 60. Ne5 Rd1+ 61. Ke6 Rxc5 62. g5 Rc8 63. gxh6 gxh6 64. f5 Ra8 65. Kf6 Rg1 66. Ng6 Ra6+ 67. Re6 Rxe6+ 68. Kxe6 Re1+ 69. Ne5 Kh7 70. f6 Re2 71. Kd6 Kg8 72. Ke6 Re1 73. Kf5 Rg1 74. Ke6 Re1 75. Kf5 Kh7 76. Ke6 Rh1 77. Ng6 Re1+ 78. Kf7 Rg1 79. Ke8 Re1+ 80. Kf7 Rg1 81. Nf8+ Kh8 82. Ne6 Rf1 83. Nf8 Rg1 84. Ke7 Rf1 85. f7 Re1+ 86. Ne6 1-0
2024.07.08 43rd St Veit Open 2024
467278 Kulon, K (2379) Koellner, Ruben Gideon (2454) 0-1
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. d5 Ne5 10. bxc3 Nxc4 11. Re1 Nd6 12. Ng5 O-O 13. Nxe4 Nxe4 14. Rxe4 d6 15. Qf3 Bd7 16. Bd2 Re8 17. Rae1 Rxe4 18. Rxe4 f5 19. Re1 Qf6 20. c4 Re8 21. Rxe8+ Bxe8 22. Bc3 Qg5 23. h4 Qh6 24. g3 Qc1+ 25. Kh2 Bd7 26. Qd3 f4 27. g4 c5 28. h5 Bxg4 29. Qe4 Kf7 30. Qxh7 Qxc3 31. Qg6+ Ke7 32. Qxg4 Qe5 33. Kg2 b5 34. cxb5 Qxd5+ 35. Kg1 Qe5 36. Qc8 Qe1+ 37. Kg2 Qe4+ 38. Kh2 Qf3 39. Kg1 Qd1+ 40. Kg2 Qd5+ 41. Kg1 Qxh5 42. Qc7+ Ke6 43. Qxg7 f3 44. a4 c4 45. Qg8+ Qf7 46. Qg5 Qf5 47. Qg8+ Ke5 48. Kh2 c3 49. Qh8+ Qf6 50. Qe8+ Kd4 51. Qe3+ Kc4 52. Kh3 Qh8+ 53. Kg4 Qd4+ 54. Kxf3 Qxe3+ 55. Kxe3 Kb3 56. a5 c2 57. Kd2 Kb2 0-1
2024.07.07 43rd St Veit Open 2024
467207 Wegerer, F (2117) Koellner, Ruben Gideon (2454) 0-1
1. Nf3 d5 2. d4 Nf6 3. Bg5 Nbd7 4. e3 h6 5. Bf4 g5 6. Bg3 Ne4 7. Nc3 Nxg3 8. hxg3 e6 9. Ne2 a6 10. c3 Bg7 11. g4 e5 12. Ng3 e4 13. Nh5 Kf8 14. Nd2 Nf6 15. Nxf6 Bxf6 16. Be2 Be7 17. Qb3 c6 18. O-O-O Kg7 19. f3 exf3 20. gxf3 Bd6 21. c4 a5 22. c5 Bc7 23. Bd3 Qf6 24. Bc2 a4 25. Qd3 b6 26. cxb6 Ba6 27. Qf5 Qxf5 28. Bxf5 Bxb6 29. Rhe1 Rhe8 30. Kc2 c5 31. dxc5 Bxc5 32. Nb1 Bxe3 33. Rxd5 Bc4 34. Rd7 Bxa2 35. Nc3 Bb3+ 36. Kd3 Bf4 37. Rxe8 Rxe8 38. Be4 Bc1 39. Bd5 Re3+ 40. Kd4 Bxd5 41. Rxd5 Rxf3 42. Kc5 a3 43. Kd4 0-1
2024.07.07 43rd St Veit Open 2024
467243 Koellner, Ruben Gideon (2454) Rempe, Jonas (2161) 1-0
1. d4 Nf6 2. Bg5 c5 3. d5 Ne4 4. Bf4 e6 5. f3 Bd6 6. Bxd6 Nxd6 7. e4 O-O 8. Nc3 b5 9. dxe6 dxe6 10. e5 b4 11. Qxd6 bxc3 12. Qxd8 Rxd8 13. bxc3 Nc6 14. f4 Rb8 15. Bd3 Bb7 16. Kf2 Rbc8 17. Rb1 Na5 18. Nf3 Bd5 19. Rb5 Nc4 20. Bxc4 Bxc4 21. Ra5 Rd7 22. Rb1 g6 23. Ke3 Rcc7 24. g4 Bd5 25. Nd2 Kg7 26. c4 Bg2 27. Nb3 Bh3 28. Rg1 h5 29. gxh5 Bf5 30. hxg6 fxg6 31. Rxc5 a5 32. Rd1 1-0
2024.07.06 43rd St Veit Open 2024
467171 Koellner, Ruben Gideon (2454) Martinovic, David (1975) 1-0
1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. f3 Nc6 6. e4 e6 7. e5 Nd7 8. f4 a6 9. Nf3 b5 10. Bd3 g6 11. O-O Bg7 12. Be3 O-O 13. g4 Re8 14. Ne2 Nf8 15. Ng3 Nb4 16. Bb1 Bb7 17. f5 Rc8 18. f6 Bh8 19. Qd2 Nc6 20. h4 Qa5 21. Qh2 Rc7 22. h5 Rec8 23. Bh6 Qb4 24. Qf2 Nd8 25. Bd3 Bc6 26. Rad1 Be8 27. a3 Qb3 28. Bxf8 Kxf8 29. Qd2 Kg8 30. Qh6 Bxf6 31. exf6 1-0
2024.07.02 Titled Tue 2nd Jul Late
479148 Toktomushev, Teimur (2300) Koellner, Ruben Gideon (2454) 0-1
1. d4 d6 2. e4 Nf6 3. Bd3 e5 4. Nf3 Nbd7 5. c3 Be7 6. O-O O-O 7. h3 c6 8. Re1 Re8 9. Nbd2 Qc7 10. Nc4 b5 11. Ne3 a6 12. a4 Bb7 13. Nf5 Bf8 14. Bg5 h6 15. Bh4 g6 16. Ne3 exd4 17. cxd4 Nxe4 18. Rc1 Nef6 19. axb5 axb5 20. Bxb5 Qb6 21. Bc4 d5 22. Bd3 Bg7 23. Qc2 Ne4 24. Ra1 Rxa1 25. Rxa1 g5 26. Bxe4 dxe4 27. Nxg5 hxg5 28. Bxg5 Qxd4 29. Rd1 Qe5 30. Rxd7 Bc8 31. Rd8 Rxd8 32. Bxd8 Bd7 33. Nc4 Qd4 34. Bb6 Qd3 35. Qxd3 exd3 36. Kf1 Be6 37. Na5 Bxb2 38. Nxc6 Bc4 39. Ke1 Bc3+ 0-1
2024.07.02 Titled Tue 2nd Jul Late
479315 Koellner, Ruben Gideon (2454) Pinto, Daniel (2265) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 c5 4. e3 Bg7 5. dxc5 O-O 6. a3 a5 7. Rb1 a4 8. b4 axb3 9. cxb3 Nd5 10. Ne4 Nc3 11. Nxc3 Bxc3+ 12. Nd2 b6 13. cxb6 Qxb6 14. Be2 Bb7 15. O-O Nc6 16. Nc4 Qc7 17. Bf3 d6 18. Qc2 Bg7 19. Bb2 Bxb2 20. Qxb2 Na5 21. Bxb7 Qxb7 22. Nxa5 Rxa5 23. b4 Ra4 24. Rfc1 Rfa8 25. Rc3 Qb5 26. Rbc1 f6 27. Rc8+ Kg7 28. Qb3 Rxa3 29. Qg8+ Kh6 30. Rxa8 1-0
2024.07.02 Titled Tue 2nd Jul Late
479690 Sindarov, Javokhir (2674) Koellner, Ruben Gideon (2454) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. f3 Bd6 9. h4 Ke7 10. h5 h6 11. Nge2 Nc6 12. Be3 a6 13. g4 b5 14. O-O-O Nh7 15. Rdf1 Rhf8 16. Nd1 Rf7 17. Rh3 Raf8 18. c3 Na5 19. b3 Nb7 20. Rg3 Bc5 21. Kd2 Rd8+ 22. Kc2 a5 23. Bc1 Ng5 24. Bxg5+ hxg5 25. Rh1 Rdf8 26. Rhh3 Rf6 27. Nc1 Bd6 28. Nd3 Nc5 29. N1f2 Rh6 30. Nxc5 Bxc5 31. Nd3 Bd6 32. Rg1 Rhf6 33. Rf1 Kd7 34. Kd2 Kc6 35. Ke2 Ra8 36. Rfh1 a4 37. b4 Rh6 38. a3 Rf8 39. Rc1 Kd7 40. c4 c6 41. cxb5 cxb5 42. Rc3 Rc8 43. Rxc8 Kxc8 44. Rh1 Kd7 45. Rd1 Ke7 46. Rc1 Rh8 47. Rc6 Rb8 48. Ra6 Rc8 49. Kd2 Rb8 50. Ra7+ Kf6 51. Rd7 Be7 52. Nc1 Rc8 53. Ne2 Ra8 54. Nc3 Rb8 55. Kc2 Kf7 56. Rc7 Kf6 57. Rc6 Kf7 58. Rc7 Kf6 59. Ra7 Kf7 60. Ra5 Bd8 61. Rxb5 Rc8 62. Rb7+ Kf6 63. Kd3 Bc7 64. Nxa4 Rd8+ 65. Kc4 Rd4+ 66. Kb5 Bd6 67. Nb6 Rd3 68. Nd7+ Ke7 69. Nxe5+ Kd8 70. Nxd3 Kc8 71. Kc6 Bf4 72. Nc5 Be3 73. Nd7 Bb6 74. Rb8# 1-0
2024.07.02 Titled Tue 2nd Jul Late
479874 Koellner, Ruben Gideon (2454) Lymar, Vladislav (2184) 0-1
1. d4 d6 2. Nf3 Nf6 3. Nbd2 Nbd7 4. e4 e5 5. dxe5 dxe5 6. Bc4 Bc5 7. O-O O-O 8. c3 a5 9. a4 Qe7 10. Nb3 Bb6 11. Qe2 Nc5 12. Nxc5 Bxc5 13. Nd2 Bg4 14. Nf3 Rfd8 15. h3 Bh5 16. Bg5 Rd6 17. Rfd1 Rad8 18. Rxd6 Qxd6 19. Bb3 h6 20. Rd1 Qe7 21. Rxd8+ Qxd8 22. Bxf6 Qxf6 23. g4 Bg6 24. Kg2 h5 25. Bc2 hxg4 26. hxg4 Qf4 27. Nh4 Bh7 28. Nf5 Bxf5 29. exf5 f6 30. Be4 c6 31. Bf3 Qxa4 32. Qd2 Kh7 33. g5 Qf4 34. Qxf4 exf4 35. g6+ Kh6 36. Be4 Kg5 37. Kf3 Bd6 38. Ke2 Kg4 39. f3+ Kg3 40. Kd3 Kf2 41. Kd2 Bc5 42. Kd3 Ke1 43. Kc2 Ke2 44. Kb3 Kd2 45. Ka4 Bb6 46. b4 Kxc3 47. bxa5 Bd4 48. a6 bxa6 49. Bxc6 Bb6 50. Bb7 a5 51. Kb5 Bc7 0-1
2024.07.02 Titled Tue 2nd Jul Late
480081 Safranek, William (2119) Koellner, Ruben Gideon (2454) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nge2 Nbd7 5. h3 c6 6. g4 h6 7. a4 b6 8. Bg2 Bb7 9. O-O Be7 10. f4 O-O 11. Ng3 Re8 12. Nf5 Bf8 13. Be3 Nh7 14. Qd2 a6 15. Rad1 exf4 16. Bxf4 Ndf6 17. e5 dxe5 18. dxe5 Qxd2 19. Rxd2 Nd5 20. Nxd5 cxd5 21. Bxd5 Bxd5 22. Rxd5 Ng5 23. Bxg5 hxg5 24. Rfd1 Re6 25. Nd4 Ree8 26. Nf3 f6 27. c3 Rac8 28. Kf1 Rc4 29. R1d4 Rc6 30. exf6 gxf6 31. Rd2 Rce6 32. Kf2 Bc5+ 33. Kg3 Re3 34. R5d3 R3e4 35. b4 Be3 36. Rd1 Bf4+ 37. Kg2 Re2+ 38. Kf1 Ra2 39. a5 bxa5 40. bxa5 Kf7 41. Re1 Rxe1+ 42. Kxe1 Rxa5 43. Rd7+ Ke6 44. Rb7 Ra2 45. Nd4+ Kd5 46. Rb6 Be5 47. Ne2 Kc5 48. Rb4 a5 49. Re4 Kd5 50. Re3 a4 51. Kd1 a3 52. Nc1 Rh2 53. Re2 Rxh3 54. Kc2 Rxc3+ 55. Kb1 Rg3 56. Ka2 Rxg4 57. Kxa3 Rg3+ 58. Kb4 Bd6+ 59. Kb5 Rc3 60. Rd2+ Ke6 61. Ne2 Rc5+ 62. Kb6 Rc4 63. Kb5 Rb4+ 64. Kc6 Rc4+ 65. Kb5 Re4 66. Nd4+ Kf7 67. Nf5 Be5 68. Kc6 Rf4 69. Ne3 Rf3 70. Nd5 Ke6 71. Nb4 g4 72. Nd3 Kf5 73. Ne1 Rc3+ 74. Kd5 Rc8 75. Rf2+ Kg5 76. Ke4 Rc4+ 77. Kd3 Rd4+ 78. Ke2 Re4+ 79. Kf1 Rxe1+ 80. Kxe1 Bg3 81. Kf1 Bxf2 82. Kxf2 f5 83. Kg3 f4+ 84. Kf2 Kf5 85. Kg2 Ke4 86. Kf2 f3 87. Kg3 Ke3 88. Kxg4 f2 89. Kg3 f1=Q 90. Kh2 Qf2+ 0-1
2024.07.02 Titled Tue 2nd Jul Late
480265 Koellner, Ruben Gideon (2454) Yang, Kevin (2096) 1/2-1/2
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 b6 5. Bd3 Bb7 6. O-O Be7 7. c3 cxd4 8. exd4 O-O 9. Qe2 d6 10. Re1 Nbd7 11. Nf1 Re8 12. Ng3 Qc7 13. Bc2 Bf8 14. Bb3 a6 15. a4 Bd5 16. Bc2 Qb7 17. Ng5 h6 18. N5e4 Nxe4 19. Bxe4 b5 20. Bxd5 Qxd5 21. Qg4 Nf6 22. Qe2 Reb8 23. axb5 axb5 24. Be3 Qc4 25. Qf3 Nd5 26. Qg4 Rxa1 27. Rxa1 Nxe3 28. fxe3 b4 29. Rc1 bxc3 30. bxc3 Qd3 31. Qf3 Rb1 32. Rxb1 Qxb1+ 33. Kf2 Qc2+ 34. Ne2 d5 35. g3 Bd6 36. Kg2 g6 37. Kh3 Qf5+ 38. Qxf5 gxf5 39. g4 fxg4+ 40. Kxg4 Kg7 41. h3 Ba3 42. Kf3 Kf6 43. e4 dxe4+ 44. Kxe4 Bd6 45. c4 Kg5 46. c5 Bc7 47. Nc3 f5+ 48. Kf3 Kf6 49. Nb5 Ba5 50. Ke3 Ke7 51. Nd6 Kd7 52. Nf7 h5 53. Ne5+ Kc7 54. Ng6 Bb4 55. Nf4 Kd7 56. Nxh5 e5 57. Ng7 exd4+ 58. Kxd4 f4 59. Nf5 f3 60. Ne3 f2 61. Kd5 Bd2 62. Nf1 Bf4 63. Ke4 Bh6 64. Kd5 Bf4 65. h4 Bh6 66. h5 Bf4 67. Ke4 Bh6 68. Kf3 Kc6 69. Kxf2 Kxc5 70. Ng3 Kc6 71. Kf3 Kd7 72. Nf5 Bf8 73. Kf4 Ke6 74. Kg5 Kf7 75. Nd6+ Bxd6 76. Kf5 Kg7 77. Kg5 Be7+ 78. Kf5 Kh6 79. Ke6 Bg5 80. Kf5 Kxh5 1/2-1/2
2024.07.02 Titled Tue 2nd Jul Late
480336 Koellner, Ruben Gideon (2454) Papayan, O (2183) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. Nbd2 Qc7 5. c3 Nbd7 6. Bd3 e5 7. dxe5 Nxe5 8. Nxe5 Qxe5 9. e4 dxe4 10. O-O Bd6 11. f4 exf3 12. Nxf3 Qe7 13. Bb5+ Kf8 14. Re1 Be6 15. Bc4 Rd8 16. Qc2 h6 17. Bxe6 fxe6 18. Nh4 Qc7 19. Ng6+ Kg8 20. h3 Rh7 21. Rxe6 Qf7 22. Re1 Bg3 23. Rf1 Qd5 24. Ne7+ 1-0
2024.07.02 Titled Tue 2nd Jul Late
480471 Adan Bermudez, S (2304) Koellner, Ruben Gideon (2454) 0-1
1. Nf3 d5 2. d3 Nd7 3. Nbd2 e5 4. e4 c6 5. g3 Ngf6 6. Bg2 Bd6 7. O-O O-O 8. Re1 Re8 9. a4 a5 10. b3 h6 11. Bb2 Qc7 12. Nh4 Nc5 13. h3 Bf8 14. Qf3 dxe4 15. dxe4 Ne6 16. Nf5 Nd7 17. Nc4 g6 18. Nfe3 Nd4 19. Qd1 Bg7 20. c3 Ne6 21. Nd6 Rd8 22. Nxc8 Raxc8 23. Qc2 Ndc5 24. Red1 Qb6 25. Nc4 Qxb3 26. Rxd8+ Rxd8 27. Qe2 Nxa4 28. Bc1 Nxc3 29. Qf1 Rd1 0-1
2024.07.02 Titled Tue 2nd Jul Late
480675 Koellner, Ruben Gideon (2454) Guillemette, Hugo (2071) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 Qc7 11. a3 a6 12. c4 Ne5 13. Bxe5 Bxe5 14. Rc1 Qb8 15. Nxe5 Qxe5 16. Nf3 Qh5 17. cxd5 exd5 18. Rc7 Bg4 19. Rxb7 Ne4 20. h3 Bxf3 21. Qxf3 Qxf3 22. gxf3 Nd2 23. Rd1 Nxf3+ 24. Kg2 Ne5 25. Be2 Rfd8 26. f4 Ng6 27. Kg3 Re8 28. Kf2 Rad8 29. Bxa6 h5 30. Be2 h4 31. Rd4 Ra8 32. Rd3 Re6 33. b5 d4 34. Rxd4 Rxa3 35. Bd3 Rf6 36. Rd5 Nf8 37. Rb8 g6 38. Rdd8 Kg7 39. Rxf8 Rxd3 40. Rg8+ 1-0
2024.07.02 Titled Tue 2nd Jul Late
480874 Koellner, Ruben Gideon (2454) Klukin, Kirill (2413) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 Bd6 5. Bd3 O-O 6. O-O Nbd7 7. e4 dxe4 8. Nxe4 Nxe4 9. Bxe4 Nf6 10. Bg5 h6 11. Bxf6 Qxf6 12. c3 c5 13. dxc5 Bxc5 14. Qe2 Rb8 15. Rad1 b5 16. Ne5 b4 17. Nc6 Rb6 18. Nxb4 Bxb4 19. cxb4 Ba6 20. Bd3 Bxd3 21. Rxd3 Rxb4 22. b3 a5 23. Rfd1 a4 24. g3 axb3 25. Rxb3 Ra4 26. Rf3 Qg6 27. Kg2 Rfa8 28. Rd2 Qb1 29. Rfd3 Rxa2 30. Qe4 Rf8 31. Rxa2 Qxa2 32. Rd7 Qa8 33. Qxa8 Rxa8 34. h4 g6 35. Rb7 Kg7 36. Rc7 Kf6 37. Rb7 Rd8 38. Rc7 Rd5 39. Rb7 Rc5 40. Rd7 Rc2 41. Kf3 Rc8 42. Ra7 Re8 43. Kf4 Re7 44. Ra6 Rc7 45. Kf3 Rb7 46. Ra5 Rb3+ 47. Kg2 g5 48. hxg5+ hxg5 49. Ra7 Kg6 50. Ra5 f6 51. Ra6 e5 52. Rc6 Kf5 53. g4+ Kg6 54. f3 Rb2+ 55. Kg3 Re2 56. Rc4 Re3 57. Kf2 Rd3 58. Ra4 Kf7 59. Ra7+ Ke6 60. Ra6+ Rd6 61. Ra4 Rc6 62. Kg3 Kd5 63. Ra5+ Kd4 64. Ra4+ Kd3 65. Ra3+ Rc3 66. Ra6 Ke2 67. Ra2+ Ke3 68. Ra6 Ke2 69. Ra2+ Kd3 70. Ra6 e4 71. Rd6+ Ke2 72. Rxf6 Rxf3+ 73. Rxf3 exf3 74. Kh2 f2 75. Kg2 f1=Q+ 76. Kh2 Qf4+ 77. Kg1 Qxg4+ 78. Kh1 Qh4+ 0-1
2024.05.28 Titled Tue 28th May Early
524745 Kopczynski, M (2225) Koellner, Ruben Gideon (2439) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. d5 Be7 5. Be3 c6 6. dxc6 bxc6 7. f3 O-O 8. Qd2 d5 9. exd5 cxd5 10. Bg5 d4 11. Bxf6 Bxf6 12. Ne4 Be7 13. Bc4 Nc6 14. O-O-O Rb8 15. h4 Qb6 16. Bb3 a5 17. a4 Be6 18. Qd3 Nb4 19. Qb5 Qxb5 20. axb5 Bxb3 21. cxb3 Rfc8+ 22. Kb1 f5 23. Ng3 g6 24. f4 Bf6 25. h5 exf4 26. N3e2 d3 27. Nxf4 Rc2 28. Nxd3 Rxg2 29. hxg6 hxg6 30. Nf3 Nxd3 31. Rxd3 Rxb2+ 32. Kc1 Rc8+ 33. Kd1 Rb1+ 0-1
2024.05.28 Titled Tue 28th May Early
525115 Koellner, Ruben Gideon (2439) Le Ruyet, L (2229) 1-0
1. d4 d5 2. Nf3 e6 3. e3 c6 4. Nbd2 f5 5. Ne5 Nf6 6. f4 Bd6 7. Bd3 O-O 8. O-O Bd7 9. c4 Be8 10. c5 Be7 11. b4 Bh5 12. Ndf3 Ne4 13. Bd2 Nd7 14. Qc2 Ndf6 15. b5 cxb5 16. Bxb5 Ng4 17. Rab1 Nxe5 18. Nxe5 g5 19. Bd3 gxf4 20. exf4 Qc7 21. Be3 Kh8 22. Rb2 Rg8 23. Rfb1 Rab8 24. Bxe4 fxe4 25. Qa4 a6 26. Qd7 Qxd7 27. Nxd7 Rbd8 28. Rxb7 Bf3 29. g3 Rde8 30. Ne5 Bh5 31. Ra7 Bf6 32. Rbb7 Rg7 33. c6 Bxe5 34. fxe5 1-0
2024.05.28 Titled Tue 28th May Early
525420 Soham, Kamotra (2388) Koellner, Ruben Gideon (2439) 1-0
1. c4 d6 2. g3 e5 3. Bg2 f5 4. Nc3 Nf6 5. d3 c6 6. e4 Be7 7. Nge2 O-O 8. O-O Be6 9. exf5 Bxf5 10. h3 d5 11. d4 e4 12. Qb3 Qb6 13. cxd5 Qxb3 14. axb3 cxd5 15. Nf4 Rd8 16. g4 Bg6 17. g5 Nh5 18. Nfxd5 Bd6 19. Nb6 Nc6 20. Nxa8 Rxa8 21. Nxe4 Bxe4 22. Bxe4 Nxd4 23. Bxb7 Rb8 24. Rxa7 Kf8 25. Ra8 Nxb3 26. Rxb8+ Bxb8 27. Be3 Be5 28. Bd5 Nd4 29. f4 Ne2+ 30. Kf2 Nexf4 31. Bxf4 Nxf4 32. Ke3 Ke7 33. Rxf4 Bxf4+ 34. Kxf4 Kd6 35. Bg8 h6 36. gxh6 gxh6 37. Kf5 Kc5 38. Kg6 Kd4 39. Kxh6 Kd3 40. Kg6 Kc2 41. h4 Kxb2 42. h5 Kc3 43. h6 Kd4 44. h7 Ke5 45. h8=Q+ Kd6 46. Qg7 Kc5 47. Qf7 Kb6 48. Qd5 Ka6 49. Qb3 Ka7 50. Qb5 Ka8 51. Bd5+ Ka7 52. Qb7# 1-0
2024.05.28 Titled Tue 28th May Early
525785 Koellner, Ruben Gideon (2439) Iljin, T (2283) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O Nc6 7. c3 e5 8. dxe5 dxe5 9. Qe2 Nh5 10. g3 Bg4 11. Kg2 Qd7 12. Rd1 Rad8 13. Bb3 Bh3+ 14. Kh1 Kh8 15. Ng1 Bg4 16. f3 Be6 17. Nf1 Qe7 18. Rxd8 Rxd8 19. Be3 f5 20. Rd1 fxe4 21. Rxd8+ Nxd8 22. fxe4 Bxb3 23. axb3 Nf6 24. Nd2 Ne6 25. Ngf3 Nd7 26. b4 h6 27. Qc4 g5 28. Kg2 Bf6 29. Nf1 g4 30. N3d2 h5 31. Bf2 Ng5 32. Ne3 Nb6 33. Qd3 Qd6 34. Qxd6 cxd6 35. Nf5 Nc8 36. Be3 Nf7 37. Nc4 Kg8 38. b5 Kf8 39. Na5 Nd8 40. Nc4 Nf7 41. Kf2 Ke8 42. Ke2 Kd7 43. Kd3 Ke6 44. Na5 b6 45. Nc6 d5 46. Nh6 dxe4+ 47. Kxe4 Nxh6 48. Bxh6 Nd6+ 49. Kd3 Nxb5 50. Be3 Nd6 51. Nxa7 e4+ 52. Kc2 b5 53. Bc5 Nc4 54. Nxb5 Ne5 55. Nd4+ Kd5 56. b4 Nf3 57. Nxf3 gxf3 58. Kb3 Bg5 59. c4+ Ke5 60. Kc3 1-0
2024.05.28 Titled Tue 28th May Early
525927 Papasimakopoulos, Alexandros (2395) Koellner, Ruben Gideon (2439) 1-0
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. Nh4 Bd7 6. e4 e5 7. Nf3 Nc6 8. d5 Ne7 9. Be2 Bg7 10. O-O O-O 11. Ne1 Ne8 12. Be3 f5 13. f3 Nf6 14. Nd3 b6 15. b4 f4 16. Bf2 g5 17. c5 h5 18. c6 Bc8 19. a4 a6 20. Kh1 g4 21. Bh4 Ng6 22. Bg5 Qe8 23. Bxf6 Bxf6 24. fxg4 hxg4 25. Bxg4 Kg7 26. a5 b5 27. Nf2 Rh8 28. Bxc8 Rxc8 29. Qg4 Rd8 30. g3 Rh6 31. Rg1 Qf7 32. Ne2 Rdh8 33. Rg2 Rh5 34. gxf4 exf4 35. Nxf4 Rxh2+ 36. Rxh2 Rxh2+ 37. Kxh2 Bxa1 38. Qxg6+ Qxg6 39. Nxg6 Kxg6 40. Kg3 Kg5 41. Nd3 Bc3 42. e5 dxe5 43. d6 e4 44. dxc7 exd3 45. c8=Q d2 46. Qd7 Bxb4 47. c7 d1=Q 48. Qxd1 Bxa5 49. c8=Q b4 50. Qcg4+ Kf6 51. Qde2 b3 52. Qf4+ Kg7 53. Qeg4+ Kh7 54. Qf7+ Kh8 55. Qfg7# 1-0
2024.05.28 Titled Tue 28th May Early
526186 Koellner, Ruben Gideon (2439) Bharadia Yash (2100) 1-0
1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Nbd2 c5 5. Bd3 Bb7 6. O-O Be7 7. c3 O-O 8. Qe2 d5 9. Ne5 Nfd7 10. f4 f6 11. Qh5 f5 12. Ndf3 Qe8 13. Qh3 Nf6 14. g4 g6 15. Bd2 Nc6 16. Be1 Ne4 17. gxf5 exf5 18. Kh1 Bf6 19. Rg1 Ne7 20. Rg2 a5 21. Bh4 Ba6 22. Bxf6 Rxf6 23. Bxe4 fxe4 24. Ng5 h5 25. Rag1 Bc8 26. Qh4 Nf5 27. Qf2 Ra7 28. Nh3 Rg7 29. Rg5 Nh6 30. Qg2 Ng4 31. Qg3 cxd4 32. cxd4 Bf5 33. Nf2 Nh6 34. Rxh5 Be6 35. Rxh6 1-0
2024.05.28 Titled Tue 28th May Early
526515 Koellner, Ruben Gideon (2439) Kononenko, Dmitry2 (2207) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c6 4. Nbd2 Bf5 5. Ne5 Nbd7 6. g4 Be4 7. f3 Bg6 8. h4 h5 9. Nxg6 fxg6 10. g5 Ng8 11. Bd3 Kf7 12. c4 e6 13. e4 Bd6 14. Qe2 Ne7 15. b3 Re8 16. Bb2 Bg3+ 17. Kf1 Bf4 18. Kg2 Nf8 19. Nf1 Kg8 20. Ne3 Bxe3 21. Qxe3 Qc7 22. Rae1 Kh7 23. Re2 a5 24. Rhe1 a4 25. Qf2 axb3 26. axb3 Qd7 27. Bb1 b5 28. c5 b4 29. Bc1 Rad8 30. Be3 Qc7 31. Qg3 Qxg3+ 32. Kxg3 dxe4 33. fxe4 Ra8 34. Bf4 Red8 35. Rd1 Ra3 36. Rb2 Nc8 37. Be3 Ne7 38. Bd3 e5 39. dxe5 Ne6 40. Rbb1 Ra5 41. Bc4 Rxd1 42. Rxd1 Nxc5 43. Bxc5 Rxc5 44. e6 Re5 45. Kf4 Ra5 46. Rd7 Ng8 47. e7 Nxe7 48. Rxe7 Ra8 49. e5 c5 50. e6 Rf8+ 51. Rf7 Re8 52. e7 Rb8 53. Ke5 Rb6 54. e8=Q Re6+ 55. Qxe6 Kg8 56. Rxg7+ Kxg7 57. Qf7+ Kh8 58. Qg8# 1-0
2024.05.28 Titled Tue 28th May Early
526757 Ljukin, S (2362) Koellner, Ruben Gideon (2439) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. f4 Bb4 7. Bd3 Re8 8. fxe5 Nxe4 9. Ne2 Rxe5 10. Bf4 Re7 11. O-O-O Nxc3 12. Nxc3 Bxc3 13. Bxh7+ Bd7 14. bxc3 Kc8 15. Rhe1 Rxe1 16. Rxe1 Be6 17. g4 a5 18. h4 Ra6 19. h5 Nd7 20. g5 b5 21. Bd3 f6 22. h6 gxh6 23. gxh6 Nf8 24. h7 Nxh7 25. Bxh7 Bxa2 26. Bf5+ Kb8 27. Re8+ Kb7 28. Be4+ c6 29. Re7+ Kc8 30. Bc7 Bd5 31. Bf5+ Kb7 32. Bxa5+ Ka8 33. Bd8 Ra1+ 34. Kd2 Rf1 35. Bc8 Rf2+ 36. Ke3 Rxc2 37. Bb7+ Kb8 38. Kd3 Rc1 39. Bb6 Rd1+ 40. Kc2 Rh1 41. Ba6 Rh8 42. Bd4 Rf8 43. Rb7+ Ka8 44. Bc5 Re8 45. Rg7 f5 46. Bb7+ Kb8 47. Bd6+ Ka7 48. Bxc6+ Kb6 49. Bxe8 f4 50. Bxf4 Bc4 51. Be3+ Ka5 52. Ra7# 1-0
2024.05.28 Titled Tue 28th May Late
527455 Garcia Almaguer, J (2126) Koellner, Ruben Gideon (2439) 0-1
1. e4 d6 2. Nf3 Nf6 3. d3 e5 4. g3 c5 5. Bg2 Nc6 6. Nbd2 Be6 7. a4 Be7 8. O-O O-O 9. h3 d5 10. Ng5 Bc8 11. exd5 Nxd5 12. Ngf3 Be6 13. Re1 f6 14. Ne4 Qd7 15. Kh2 Rac8 16. c3 Rfd8 17. Qc2 Bf8 18. Bd2 Nde7 19. Rad1 b6 20. Bc1 Nf5 21. Bf1 Na5 22. Nfd2 Qf7 23. Re2 Rd7 24. Rde1 Rcd8 25. Nc4 Nxc4 26. dxc4 Bxc4 27. Rd2 Bxf1 28. Rxd7 Qxd7 29. Rxf1 Qd3 30. Qxd3 Rxd3 31. Kg2 Nd6 32. Nxd6 Bxd6 33. Re1 Kf7 34. Be3 Ke6 35. Kf3 f5 36. Ke2 c4 37. Ra1 f4 38. gxf4 exf4 39. Bd4 f3+ 40. Ke1 Be5 41. Bxe5 Kxe5 42. a5 b5 43. a6 Kd5 44. Rd1 Rxd1+ 45. Kxd1 Ke4 46. Kd2 g5 0-1
2024.05.28 Titled Tue 28th May Late
527804 Koellner, Ruben Gideon (2439) Droin, Augustin (2476) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 e6 5. Nbd2 Be7 6. Bd3 b6 7. Ne5 Bb7 8. f4 O-O 9. Qf3 Ne8 10. Qh3 f5 11. g4 Nd6 12. Ndf3 Ba6 13. Bc2 Ne4 14. gxf5 exf5 15. Rg1 Qc8 16. Bd2 Nd7 17. O-O-O Nxe5 18. Nxe5 Bf6 19. Be1 Qe6 20. Bxe4 dxe4 21. d5 Qc8 22. d6 Bxe5 23. fxe5 Qe6 24. Bh4 Qxa2 25. Qg2 Rf7 26. Qc2 Bd3 27. Rxd3 exd3 28. Qxd3 Qe6 29. Bg3 a5 30. Bf4 a4 31. c4 a3 32. bxa3 Ra4 33. Kb2 Rxc4 34. Rd1 Rd7 35. Qb3 g5 36. Rc1 b5 37. Rg1 h6 38. h4 Rg7 39. hxg5 hxg5 40. Bg3 f4 41. Qxb5 fxg3 42. Qb8+ Kh7 43. Rh1+ Kg6 44. d7 Rxd7 45. Qh8 Kf5 46. Rf1+ Ke4 47. Qh7+ Rxh7 48. Rf2 gxf2 49. a4 Rb4+ 50. Ka3 Qb3# 0-1
2024.05.28 Titled Tue 28th May Late
528023 Koellner, Ruben Gideon (2439) Flynn, Jacob (2190) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 cxd4 5. exd4 Bg4 6. Nbd2 Qc7 7. h3 Bh5 8. g4 Bg6 9. Ne5 Nfd7 10. f4 e6 11. Qf3 Nc6 12. Nxc6 bxc6 13. f5 exf5 14. gxf5 O-O-O 15. fxg6 Re8+ 16. Kd1 hxg6 17. Nb3 Nf6 18. Bf4 Bd6 19. Bxd6 Qxd6 20. Nc5 Re7 21. Kc2 Rhe8 22. Bd3 Ne4 23. Bxe4 dxe4 24. Qe3 f5 25. Raf1 Kb8 26. Qf4 Qxf4 27. Rxf4 Rf8 28. h4 Kc7 29. Rg1 Rf6 30. Kd2 Kd6 31. Ke3 Kd5 32. b3 a5 33. c4+ Kd6 34. Na4 Rb7 35. Nc3 Rb8 36. d5 c5 37. Rg5 Rh8 38. Nb5+ Kd7 39. Rg2 Rh6 40. Rg1 Rf8 41. Kf2 Re8 42. Rg5 Reh8 43. Kg3 Re8 44. Rf2 e3 45. Re2 Re4 46. Kf3 Rhxh4 47. Rxg6 Rh3+ 48. Kg2 Rh7 49. Nc3 Re5 50. Kf3 Ke7 51. Kf4 Kf7 52. Rxg7+ Rxg7 53. Kxe5 Rg3 54. Kxf5 Ke7 55. Ke4 Kd6 56. Rxe3 Rg2 57. Kd3 Rb2 58. Re6+ Kd7 59. Ra6 a4 60. Rxa4 Rc2 61. Ra6 1-0
2024.05.28 Titled Tue 28th May Late
528156 Otero Marino, Alain (2249) Koellner, Ruben Gideon (2439) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. a5 Qc7 9. Be3 Nf8 10. Re1 Ng4 11. Bc1 Nf6 12. Qd3 Ng6 13. d5 O-O 14. h3 Nh5 15. Qd1 Nhf4 16. Bf1 cxd5 17. exd5 a6 18. Kh2 Qd7 19. Na4 Bd8 20. b4 Qf5 21. Be3 e4 22. Nd4 Qe5 23. g3 Nxd5 24. Bc1 Nxb4 25. Bb2 Qe8 26. Bg2 d5 27. Nb6 Bxb6 28. axb6 Nc6 29. Ba3 Nxd4 30. Qxd4 Qc6 31. Bxf8 Nxf8 32. c4 Qxc4 33. Qxc4 dxc4 34. Bxe4 Nd7 35. Rab1 a5 36. Rec1 Ne5 37. f4 Nd3 38. Rxc4 Nb4 39. Ra1 Na6 40. Rxa5 Kf8 41. Rxa6 Rxa6 42. Rxc8+ Ke7 43. Rc7+ Kd6 44. Rxb7 f6 45. Rb8 g5 46. b7 Ra1 47. Rd8+ Ke7 48. b8=Q Ra2+ 49. Bg2 1-0
2024.05.21 Titled Tue 21st May Late
535399 Koellner, Ruben Gideon (2439) Jaque Gutierrez, Matias (2233) 0-1
1. d4 Nf6 2. Nf3 c5 3. e3 g6 4. Nbd2 Bg7 5. dxc5 Qa5 6. a3 Qxc5 7. b4 Qc7 8. Bb2 d6 9. c4 O-O 10. Be2 Nc6 11. O-O Bf5 12. Qb3 e5 13. Rfe1 Rfd8 14. Bf1 h6 15. Rad1 Be6 16. e4 a5 17. Nb1 axb4 18. axb4 Qb6 19. b5 Na5 20. Qb4 Bf8 21. Rc1 Nxc4 22. Bxc4 d5 23. Qc3 dxc4 24. Nxe5 Bg7 25. Na3 Ng4 26. Naxc4 Qxf2+ 27. Kh1 Nxe5 28. Nxe5 Rd2 29. Rg1 Rxb2 30. Rcf1 Qc2 31. Qg3 Qxe4 32. Nf3 Rxb5 33. Re1 Qc6 34. Rc1 Qd7 35. Rgd1 Qe8 36. Re1 Rba5 37. Qc7 Ra2 38. Qxb7 Qa4 39. Qc7 Qa3 40. Qg3 Qb2 41. Rcd1 Kh7 42. Rd2 Qb3 43. Rdd1 Qc3 44. Qh3 Bxh3 45. Rf1 Bxg2+ 46. Kg1 Bxf3 47. Rxf3 Qxf3 48. Rd2 Rxd2 49. h4 Qg2# 0-1
2024.05.21 Titled Tue 21st May Late
535673 Alvarado, C (2108) Koellner, Ruben Gideon (2439) 1/2-1/2
1. d4 b5 2. Nf3 Bb7 3. g3 Nf6 4. Bg2 e6 5. O-O c5 6. c3 Be7 7. Nbd2 O-O 8. e3 d5 9. Ne5 Nbd7 10. Nxd7 Qxd7 11. dxc5 Bxc5 12. Qe2 a6 13. Rd1 Qc7 14. e4 dxe4 15. Nxe4 Bxe4 16. Bxe4 Rad8 17. Bf4 Qb6 18. Bf3 Rxd1+ 19. Rxd1 Rd8 20. Rxd8+ Qxd8 21. Qd1 Qxd1+ 22. Bxd1 Nd5 23. Bd2 Kf8 24. Bf3 Ke7 25. Bxd5 exd5 26. Kf1 d4 27. Ke2 Ke6 28. f3 Kd5 29. Kd3 g6 30. h3 Bd6 31. g4 Be5 32. cxd4 Bxd4 33. b3 h5 34. Bh6 Bf6 35. Be3 Be7 36. Bh6 f5 37. gxh5 gxh5 38. Bf4 Kc5 39. Bd2 Bf6 40. Be1 Bg5 41. Bc3 Kd5 42. Bg7 Bh4 43. Bc3 Bf2 44. Bg7 Bc5 45. Bf6 Ke6 46. Bc3 Bd6 47. Bb2 Be5 48. Bc1 Kf6 49. a4 bxa4 50. bxa4 Bg3 51. Kd4 f4 52. Ba3 Kf5 53. Kd5 Bh4 54. Bd6 Bd8 55. Bb8 Ba5 56. Bd6 Bc3 57. Bc7 Bf6 58. Bd6 Bd8 59. Bb8 Kg5 60. Ke4 Kh4 61. Bxf4 Kxh3 62. Bd6 h4 63. f4 Kg4 64. f5 Bf6 65. Bc7 h3 66. Bd6 Kg5 67. Bf4+ Kh5 68. Kd5 Kg4 69. Ke4 Bd8 70. Bd6 Be7 71. Be5 Bg5 72. Bd6 Bh4 73. Bh2 Bg5 74. Bg1 Kg3 75. Ke5 h2 76. Bxh2+ Kxh2 77. f6 Kg3 78. f7 Bh6 79. Kd6 Kf4 80. Kc6 Ke5 81. Kb6 Kd6 82. Kxa6 Kc6 83. f8=Q Bxf8 84. a5 Bb4 85. Ka7 Bxa5 1/2-1/2
2024.05.14 Titled Tue 14th May Early
539749 Koellner, Ruben Gideon (2439) George Samir, David (2143) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 d5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 Qc7 11. a3 a5 12. b5 Ne5 13. Nxe5 Bxe5 14. Nf3 Bd6 15. c4 dxc4 16. Bxc4 Rd8 17. Qc2 Nd5 18. Rac1 Qe7 19. Bxd5 exd5 20. Qc3 f6 21. a4 Bg4 22. Qb3 Bxf3 23. gxf3 Kh8 24. Rfd1 Qe6 25. Kg2 Be5 26. Bxe5 fxe5 27. Qd3 Rd6 28. Kf1 Rf8 29. Ke2 Qh3 30. e4 d4 31. Rc5 Rdf6 32. Rxe5 Rxf3 33. Qxd4 Rxf2+ 34. Qxf2 Rxf2+ 35. Kxf2 Qxh2+ 36. Ke3 Qg3+ 37. Kd4 h6 38. Rd3 Qf2+ 39. Kd5 Qa2+ 40. Kd6 Qxa4 41. Red5 Qb4+ 42. Kc7 Qxe4 43. Kxb7 a4 44. b6 a3 45. Kc7 a2 46. Rd8+ Kh7 47. Ra3 Qe7+ 48. Kc8 Qxa3 49. b7 Qc5+ 50. Kd7 Qd5+ 51. Kc7 Qxb7+ 52. Kxb7 a1=Q 53. Kc7 Qa5+ 54. Kd7 Qxd8+ 55. Kxd8 g5 56. Ke7 g4 57. Kf6 g3 58. Kf5 g2 59. Kg4 g1=Q+ 60. Kh5 Qg5# 0-1
2024.05.14 Titled Tue 14th May Early
540161 Matthes, Aaron (2215) Koellner, Ruben Gideon (2439) 0-1
1. Nf3 d6 2. g3 Nf6 3. d4 Nbd7 4. Bg2 e5 5. O-O e4 6. Ne1 d5 7. c4 c6 8. Nc3 Bd6 9. Bg5 h6 10. Bxf6 Nxf6 11. cxd5 cxd5 12. f3 exf3 13. exf3 O-O 14. f4 Bc7 15. Qb3 Bb6 16. Nf3 Re8 17. Rad1 Bf5 18. Ne5 Be6 19. f5 Bc8 20. Kh1 Bxd4 21. Rxd4 Rxe5 22. Nxd5 Nxd5 23. Rxd5 Rxd5 24. Bxd5 Qf6 25. g4 Rb8 26. Qg3 Ra8 27. Qc7 Kh7 28. Bxf7 Qc6+ 29. Qxc6 bxc6 30. Bg6+ Kg8 31. Re1 Ba6 32. Kg2 Rb8 33. b3 c5 34. Re7 c4 35. bxc4 Bxc4 36. a3 a6 37. Kf3 Kf8 38. Rc7 Bb5 39. Kf4 Rd8 40. Ke5 Rd2 41. h4 Re2+ 42. Kd6 Rd2+ 43. Kc5 Rc2+ 44. Kb6 Rxc7 45. Kxc7 Ke7 46. Kb6 Kf6 47. Kc5 Be2 48. Bh5 Ke5 49. a4 Kf4 50. Bg6 Kxg4 51. Kb6 Kxh4 52. Be8 Kg5 53. Bd7 h5 54. Bc8 h4 55. Bd7 Kf4 0-1
2024.05.14 Titled Tue 14th May Early
540277 Koellner, Ruben Gideon (2439) Le Goff, R (2275) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 b6 5. Ne5 Bb7 6. f4 Be7 7. Bd3 O-O 8. Qf3 Nbd7 9. O-O c5 10. c3 g6 11. g4 Nxe5 12. fxe5 Nd7 13. Qg3 f6 14. exf6 Nxf6 15. Nf3 Bd6 16. Ne5 Bxe5 17. Qxe5 Qe7 18. h3 Nd7 19. Qg3 Rxf1+ 20. Bxf1 e5 21. Bd2 Rf8 22. Bg2 e4 23. Rf1 Rxf1+ 24. Bxf1 Nf8 25. Be1 g5 26. Qb8 Bc6 27. Bg3 Qb7 28. Qd8 h6 29. Qf6 Ba4 30. Qxh6 Qg7 31. Qd6 Qf7 32. dxc5 bxc5 33. Qxc5 Ng6 34. c4 Bc2 35. Qxd5 1-0
2024.05.14 Titled Tue 14th May Early
540698 Herman, Daniel (1968) Koellner, Ruben Gideon (2439) 0-1
1. Nf3 d6 2. d4 Nf6 3. c4 g6 4. Nc3 Bf5 5. g3 Ne4 6. Qb3 Nxc3 7. Qxc3 Bg7 8. Bg2 Be4 9. O-O O-O 10. Qb3 c5 11. d5 Nd7 12. Qxb7 Rb8 13. Qxa7 Bxb2 14. Bxb2 Rxb2 15. Bh3 Bxf3 16. exf3 Ne5 17. f4 Nxc4 18. Rfe1 Re8 19. Bd7 Qb8 20. Qxb8 Rexb8 21. Rxe7 Rd2 22. a4 Rbb2 23. Bb5 Nb6 24. Bf1 Nxd5 25. Re8+ Kg7 26. a5 Ra2 27. Rxa2 Rxa2 28. a6 Nb4 29. Rd8 d5 30. Rd7 c4 31. a7 c3 32. Rc7 c2 33. Kg2 Rxa7 34. Rc5 Ra1 35. Be2 c1=Q 0-1
2024.05.14 Titled Tue 14th May Early
541132 Koellner, Ruben Gideon (2439) Szpar, Milosz (2512) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 Qc7 5. Nbd2 g6 6. dxc5 Qxc5 7. Bd3 Bg7 8. O-O O-O 9. e4 Nc6 10. Qe2 Qb6 11. Re1 Qc7 12. h3 e5 13. exd5 Nxd5 14. Ne4 h6 15. Bc4 Nb6 16. Bb3 Kh7 17. h4 Bf5 18. Ng3 e4 19. Nd2 e3 20. Qxe3 Rae8 21. Qxe8 Rxe8 22. Rxe8 Bd3 23. Nf3 Ne5 24. Nxe5 Bxe5 25. Be3 Nc8 26. Rd1 Bb5 27. Rf8 Nd6 28. Ne4 Nc4 29. Bxc4 Bxc4 30. Rdd8 Bg7 31. Rfe8 Bb5 32. Rf8 Bxf8 33. Nf6+ Kh8 34. Rxf8+ Kg7 35. Ne8+ Bxe8 36. Rxe8 Qd7 37. Bd4+ f6 38. Ra8 a6 39. Rb8 g5 40. hxg5 hxg5 41. g3 Kg6 42. Rf8 Qd5 43. Rxf6+ Kh5 44. Kf1 Qh1+ 45. Ke2 Qe4+ 46. Kd2 Qg2 47. a4 Kg4 48. a5 Qd5 49. b4 Kh3 50. Ke3 Kg2 51. Kd3 Kf1 52. Ke3 Ke1 53. f4 g4 54. Kd3 Kd1 55. f5 Qf3+ 56. Kc4 Qxg3 57. Rg6 Qf3 58. f6 g3 59. Rg7 g2 60. f7 Kc2 61. b5 Qd3+ 62. Kc5 Qxb5+ 63. Kd6 Qc6+ 64. Ke7 Qe4+ 65. Kd8 Qd5+ 66. Ke8 Qe6+ 67. Kd8 g1=Q 68. Rxg1 Qxf7 69. Bb6 Kb3 70. Kc8 Kc4 71. Kb8 Kxc3 72. Ka7 Kb4 73. Rb1+ Ka3 74. Rc1 Kb2 75. Rc7 Qd5 76. Rxb7 Ka3 77. Rc7 Qd3 78. Rc5 Ka4 79. Rc7 Qe2 80. Rc5 Qf1 81. Rc7 Qb5 82. Kb7 Qd3 83. Rc5 Qe2 84. Ka7 Kb4 85. Rc7 Qd3 86. Rb7 Ka4 87. Re7 Qc4 88. Rc7 Qd3 89. Kb8 Qe2 90. Kb7 Qf1 91. Rd7 Qe2 92. Rd4+ Kb5 93. Rd5+ Ka4 94. Rc5 Qd3 95. Ba7 Kb4 96. Bb6 Ka4 97. Ka7 Kb4 98. Rc7 Ka4 99. Re7 Kb4 100. Rg7 Ka4 101. Rg4+ Kb3 102. Rd4 Qb5 103. Rd6 Qf1 104. Rc6 Ka4 105. Bc7 Kb4 106. Rxa6 Qf7 107. Rc6 Kb5 108. Rb6+ Kxa5 109. Rb7+ Ka4 110. Bb6 Qd5 111. Rc7 Qe4 112. Rc5 Qe8 113. Kb7 Kb4 114. Ka7 Qd7+ 115. Rc7 Qd5 116. Rc5 Qd7+ 117. Rc7 Qa4+ 118. Kb7 Qd1 119. Rc5 Qd7+ 120. Rc7 Qh3 121. Rc5 Qf3+ 122. Ka7 Ka4 123. Rc7 Kb4 124. Rc5 Ka4 125. Rc7 Kb4 126. Rc5 1/2-1/2
2024.05.14 Titled Tue 14th May Early
541274 Koellner, Ruben Gideon (2439) Cherniaiev, Tykhon (2306) 1/2-1/2
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nc6 6. Bd3 Qc7 7. O-O Bd6 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 Ne5 11. Nxe5 Bxe5 12. Nf3 Bd6 13. a3 Bd7 14. c4 dxc4 15. Bxc4 Bc6 16. Rc1 O-O 17. Bxf6 gxf6 18. b5 Bxf3 19. Qxf3 Qe7 20. a4 f5 21. Rfd1 Rfd8 22. g3 Rac8 23. Bf1 Rxc1 24. Rxc1 Bc5 25. a5 Kg7 26. Bg2 Rd7 27. g4 Ba3 28. Ra1 fxg4 29. Qxg4+ Kh8 30. Kh1 Bb2 31. Rg1 Rd8 32. Qe4 Bc3 33. a6 bxa6 34. bxa6 Qf6 35. Bf3 Rg8 36. Rxg8+ Kxg8 37. Qa8+ Kg7 38. Kg2 Qg6+ 39. Kf1 Qb1+ 40. Kg2 Qg6+ 41. Kh1 Qd3 42. Kg2 Qxa6 43. Qe4 Bf6 44. Qg4+ Kh8 45. Qf4 Qa1 46. Qb8+ Kg7 47. Qg3+ Kh8 48. Qb8+ Kg7 49. Qg3+ Kf8 50. Qd6+ Kg8 51. Qb8+ Kg7 1/2-1/2
2024.05.14 Titled Tue 14th May Early
541639 Oro, Faustino (2353) Koellner, Ruben Gideon (2439) 1-0
1. Nf3 Nf6 2. d4 d6 3. b3 g6 4. Bb2 Bg7 5. g3 O-O 6. Bg2 Nbd7 7. O-O Re8 8. c4 c6 9. Nc3 e5 10. e4 a6 11. a4 a5 12. Qc2 Qc7 13. h3 Nb8 14. Rad1 Na6 15. Rfe1 Nb4 16. Qb1 Be6 17. Bc1 Rad8 18. Be3 Bc8 19. Rd2 Nd7 20. d5 Na6 21. Red1 Ndc5 22. Nh4 h6 23. Re1 Kh7 24. Rdd1 Qb6 25. Qc1 Qxb3 26. Kh2 Qxc4 27. Bf1 Qb4 28. Qc2 Qb6 29. f4 exf4 30. gxf4 Qb3 31. Qxb3 Nxb3 32. Ne2 Rxe4 33. Ng3 Rxa4 34. Nf3 Ra2+ 35. Kh1 c5 36. f5 a4 37. Bd3 Nb4 38. Be4 Re8 39. fxg6+ fxg6 40. Bf4 Rf2 41. Bxd6 Rxe4 42. Nxe4 Rxf3 43. Kg2 Rf7 44. Bg3 Bf5 45. d6 Bxe4+ 46. Rxe4 a3 47. d7 Nc6 48. Re6 Nbd4 49. Rd6 a2 50. Bf2 Rxf2+ 51. Kxf2 Bf8 52. d8=Q Nxd8 53. Rxd8 Bg7 54. Rd7 Nf5 55. Rxb7 Kg8 56. Ra7 Bd4+ 57. Kf3 a1=Q 58. Raxa1 Bxa1 59. Rxa1 Kf7 60. Kf4 Ne7 61. Ke5 Nc6+ 62. Kd5 Ne7+ 63. Kxc5 Kf6 64. Kd4 Kg5 65. Ke5 Kh4 66. Ra3 g5 67. Kf6 Nd5+ 68. Kg6 h5 69. Kf5 Nf4 70. Ra4 Kxh3 71. Kxg5 Kg3 72. Rxf4 h4 73. Rxh4 1-0
2024.05.14 Titled Tue 14th May Early
541851 Koellner, Ruben Gideon (2439) Yelisieiev, Yevhenii (2403) 1-0
1. d4 d6 2. Nf3 Nf6 3. Nbd2 Nbd7 4. e4 e5 5. dxe5 dxe5 6. Bc4 Bd6 7. O-O O-O 8. c3 Qe7 9. Qe2 c6 10. a4 a5 11. Rd1 Nc5 12. h3 Bc7 13. b3 Rd8 14. Ba3 b6 15. Nf1 Be6 16. Bxc5 bxc5 17. Rxd8+ Rxd8 18. N3d2 Nd7 19. Bxe6 Qxe6 20. Nc4 Nb6 21. Nxb6 Bxb6 22. Nd2 Qd7 23. Nc4 Bc7 24. Kf1 Qd3 25. Qxd3 Rxd3 26. Rc1 Kf8 27. Ke2 Rd8 28. Rd1 Rxd1 29. Kxd1 Ke7 30. Ke2 Ke6 31. Ne3 g6 32. g4 Kf6 33. h4 h5 34. gxh5 gxh5 35. Kf3 Bd8 36. Kg3 Ke6 37. Nf5 Bf6 38. Ne3 Bd8 39. Nf5 Kf6 40. Kh3 Bc7 41. f3 Bb8 42. Ne3 Bc7 43. Kg3 Kg6 44. Nf5 Kf6 45. Kf2 Bd8 46. Ke2 Ke6 47. Kd3 Kf6 48. Kc4 Bb6 49. Nd6 Ke6 50. Ne8 Bd8 51. Ng7+ Kd6 52. Nxh5 Bxh4 53. Ng7 Be1 54. Nf5+ Kd7 55. Ne3 Kd6 56. Ng4 Bd2 57. Nf6 Be1 58. Ne8+ Kd7 59. Ng7 Kd6 60. Nf5+ Kd7 61. Nh6 Ke6 62. Kxc5 Bxc3 63. Kxc6 Bb4 64. Nf5 Bd2 65. Nd6 Bb4 66. Nc4 f5 67. Kb5 fxe4 68. fxe4 Kf6 69. Nxa5 Bc3 70. Nc6 Kg5 71. Kc4 Bb2 72. b4 Kf4 73. Kd5 Bc3 74. a5 Bd2 75. b5 Be3 76. b6 Bf2 77. b7 Ba7 78. Nxa7 1-0
2024.05.14 Titled Tue 14th May Early
541977 Koellner, Ruben Gideon (2439) Mrudul, Dehankar (2034) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 b6 5. Bd3 Bb7 6. O-O Be7 7. b3 O-O 8. Bb2 cxd4 9. exd4 Nc6 10. a3 Nd5 11. Re1 f5 12. c4 Nf4 13. Bf1 Bf6 14. Rb1 Rc8 15. b4 Ne7 16. g3 Nfg6 17. Bg2 Qc7 18. Qb3 b5 19. cxb5 Bd5 20. Qd3 Qb7 21. a4 Rc7 22. Rbc1 Rfc8 23. Rxc7 Rxc7 24. Rc1 Rxc1+ 25. Bxc1 a6 26. bxa6 Qxb4 27. Qb5 Qc3 28. Bb2 Qc7 29. Ba3 Nc6 30. Bc5 d6 31. Bb6 Qb8 32. h4 Nge7 33. Ng5 Bxg2 34. Kxg2 Qa8 35. Ndf3 Nxd4 36. Bxd4 Bxd4 37. Qb7 Qa7 38. Nxd4 1-0
2024.05.14 Titled Tue 14th May Early
542295 Galchenko, Matvey (2438) Koellner, Ruben Gideon (2439) 1-0
1. f4 d5 2. Nf3 Nc6 3. g3 Bg4 4. Bg2 h5 5. h3 Bxf3 6. Bxf3 e5 7. d3 Nf6 8. Nc3 Bb4 9. O-O Bd6 10. e4 dxe4 11. Nxe4 Nxe4 12. Bxe4 exf4 13. Bxf4 Bxf4 14. Rxf4 Qg5 15. Bxc6+ bxc6 16. Qe2+ Kf8 17. Qf2 f6 18. Re1 Re8 19. Rf1 Kf7 20. h4 Qg6 21. Kg2 a6 22. Qa7 Re7 23. Qxa6 Re6 24. Qb7 Rhe8 25. Qxc7+ R8e7 26. Qb6 Re3 27. R4f3 Re2+ 28. R1f2 Qg4 29. Qb3+ Kg6 30. d4 Re1 31. Qd3+ Kh6 32. Qd2+ Kh7 33. Rf4 Qg6 34. R4f3 Qe4 35. Qd3 Qxd3 36. Rxd3 Rb1 37. b3 Rb2 38. a4 Ra2 39. Rc3 Re6 40. Kf3 Rd6 41. Rd2 Ra1 42. Ke4 Re1+ 43. Kd3 Rg1 44. Kc4 Rf1 45. Kc5 Re6 46. a5 Ra1 47. b4 Kg6 48. Rcd3 Kf5 49. c4 Kg4 50. d5 cxd5 51. cxd5 Rc1+ 52. Kb5 Re8 53. d6 Rb8+ 54. Ka4 Rb1 55. Rd4+ Kxg3 56. R2d3+ Kf2 57. d7 Rd8 58. a6 f5 59. a7 Ra1+ 60. Ra3 Rxa3+ 61. Kxa3 Ke3 62. Rd1 Ke2 63. Rd6 f4 64. b5 f3 65. Re6+ Kd2 66. Rd6+ Ke2 67. Re6+ Kd2 68. Re8 Rxd7 69. a8=Q f2 70. Rf8 Rd3+ 71. Kb4 Ke2 72. Qe4+ Re3 73. Qc2+ Ke1 74. Qxf2+ Kd1 75. Qxe3 g5 76. Rf2 gxh4 77. Qd2# 1-0
2024.05.14 Titled Tue 14th May Early
542366 Koellner, Ruben Gideon (2439) Castellanos Gomez, Alejandro (2296) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 c5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 Ne5 11. Nxe5 Bxe5 12. a3 Bd7 13. Nf3 Bd6 14. c4 dxc4 15. Bxc4 Bc6 16. b5 Be4 17. Nd2 Bg6 18. Qf3 Bh5 19. Qxb7 Bxh2+ 20. Kxh2 Ng4+ 21. Kg1 Qxd2 22. Bd4 e5 23. Bxa7 Qd6 24. b6 e4 25. g3 Ne5 26. Qd5 Qf6 27. Ra2 Bf3 28. Qxe5 Qxe5 0-1
2024.05.14 Titled Tue 14th May Late
542690 Zhou, Aiden (2142) Koellner, Ruben Gideon (2439) 0-1
1. Nf3 d6 2. c4 e5 3. Nc3 f5 4. d4 e4 5. Ng5 Be7 6. Nh3 Nf6 7. Bg5 O-O 8. e3 c6 9. Nf4 Na6 10. a3 Nc7 11. b4 h6 12. Bxf6 Bxf6 13. Be2 g5 14. Nh5 Bh8 15. h4 Be6 16. hxg5 hxg5 17. g4 d5 18. gxf5 Bxf5 19. Bg4 Qd7 20. Rg1 Bxg4 21. Qxg4 Qxg4 22. Rxg4 Kh7 23. Rxg5 Kh6 24. Rg3 Kxh5 25. Ke2 Bf6 26. Rh1+ Bh4 27. Rgh3 Rxf2+ 28. Kd1 Rg8 29. Rxh4+ Kg5 30. Ne2 Kf6 31. Rh6+ Rg6 32. Nf4 Rxh6 33. Rxh6+ Kg5 34. Rg6+ Kf5 35. Rg7 Na6 36. Rf7+ Kg4 37. Rxb7 Kf3 38. b5 Kxe3 39. Ne6 Kd3 40. Ke1 e3 41. bxa6 dxc4 42. Nc5+ Kxd4 43. Ne6+ Kd3 44. Rd7+ Kc3 45. Nc5 Ra2 46. Ne4+ Kb3 47. Rb7+ Kxa3 48. Nc3 Rb2 49. Rxb2 Kxb2 50. Ne4 c3 51. Nxc3 Kxc3 52. Ke2 Kb4 53. Kxe3 c5 54. Kd3 Kb3 55. Kd2 c4 56. Kc1 Kc3 57. Kb1 Kd2 0-1
2024.05.14 Titled Tue 14th May Late
542808 Santos Latasa, J (2626) Koellner, Ruben Gideon (2439) 1-0
1. Nf3 d6 2. d4 Nf6 3. c4 g6 4. Nc3 Bf5 5. Qb3 b6 6. g3 c5 7. Bg2 Nc6 8. d5 Na5 9. Qd1 Bg7 10. Nd2 O-O 11. O-O a6 12. a4 Bd7 13. e4 Ng4 14. Qc2 Ne5 15. b3 b5 16. axb5 axb5 17. cxb5 Qb6 18. Ra3 Bxb5 19. Nxb5 Qxb5 20. Qa2 Nd3 21. Nc4 Bc3 22. Qc2 Nxc4 23. bxc4 Qb4 24. Rxc3 Ne5 25. f4 Ng4 26. h3 Nf6 27. Rb3 Qa4 28. e5 Rab8 29. Rc3 Qxc2 30. Rxc2 Nd7 31. Re1 Nb6 32. h4 Na4 33. Bd2 Rb3 34. Re3 Rb1+ 35. Kf2 Rfb8 36. h5 R8b2 37. Rxb2 1-0
2024.05.14 Titled Tue 14th May Late
543142 Koellner, Ruben Gideon (2439) Radhakrishnan, Sharath (1999) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 Be7 5. Bd3 O-O 6. O-O c5 7. c3 Nc6 8. dxc5 Bxc5 9. b4 Be7 10. Bb2 a6 11. a3 Bd7 12. c4 Rc8 13. Rc1 Na7 14. Qe2 dxc4 15. Nxc4 Bb5 16. Rfd1 Bxc4 17. Bxc4 Qe8 18. Ne5 Nc6 19. Nxc6 Qxc6 20. Bd3 Qa4 21. Bc2 Qe8 22. Qf3 h6 23. Qxb7 a5 24. bxa5 Rb8 25. a6 Rxb7 26. axb7 Qb8 27. Rb1 Nd5 28. Bd4 Bf6 29. Be4 Bxd4 30. Bxd5 Be5 31. Bf3 Bxh2+ 32. Kh1 Bc7 33. Rdc1 Rd8 34. Rc6 Rd6 35. Rxd6 Bxd6 36. Rb6 Bc5 37. Ra6 Ba7 38. g3 g5 39. Kg2 Kg7 40. Ra4 f5 41. Rc4 g4 42. Bc6 Kf6 43. Kg1 h5 44. Bg2 Qe5 45. Rc8 Bb8 46. a4 h4 47. gxh4 g3 48. fxg3 Qxe3+ 49. Kf1 Bxg3 50. Rc2 Qe1# 0-1
2024.05.14 Titled Tue 14th May Late
543273 Zeneli, Klendi (2156) Koellner, Ruben Gideon (2439) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. g4 d5 6. dxe5 Nxe4 7. Qxd5 Nxc3 8. bxc3 c6 9. Qe4 Nc5 10. Qe3 Bxg4 11. Rg1 Bxf3 12. Qxf3 Qc7 13. Bf4 Ne6 14. Bg3 O-O-O 15. Bd3 h5 16. h4 Bc5 17. Kf1 g5 18. hxg5 Nxg5 19. Qf5+ Ne6 20. Rh1 Kb8 21. Rxh5 Ng7 22. Rxh8 Nxf5 23. Rxd8+ Qxd8 24. Bxf5 Ka8 25. Ke2 Qa5 26. Rh1 a6 27. Rh7 Qxa2 28. Bd3 a5 29. c4 a4 30. Rxf7 a3 31. e6 Qb2 32. e7 Bxe7 33. Rxe7 a2 34. Bc7 a1=Q 35. c5 Qh8 36. Bb6 Qae5+ 37. Rxe5 Qxe5+ 38. Kd2 Qf4+ 39. Ke2 Kb8 40. Kf1 Kc8 41. Ke2 Kd7 0-1
2024.05.14 Titled Tue 14th May Late
543632 Koellner, Ruben Gideon (2439) Seletsky, G (2220) 1-0
1. d4 c5 2. d5 e5 3. e4 d6 4. Nc3 Be7 5. Nf3 Nf6 6. Be2 O-O 7. O-O Na6 8. a4 Nc7 9. Nd2 Nd7 10. Nc4 b6 11. f4 exf4 12. Bxf4 Ne8 13. Qd2 a6 14. Rf3 f6 15. Rg3 Ne5 16. Ne3 Kh8 17. Rf1 Bd7 18. Nf5 Rb8 19. Bxa6 Bxf5 20. exf5 Nc7 21. Bd3 c4 22. Be4 b5 23. axb5 Nxb5 24. Rh3 Nxc3 25. bxc3 Rb2 26. Qe2 Qe8 27. Bxe5 dxe5 28. Qxc4 Qb8 29. Qd3 Rc8 30. Qg3 Bc5+ 31. Kh1 Rb1 32. Qd3 Bd6 33. Rf3 Rxf1+ 34. Rxf1 Qc7 35. Ra1 h6 36. Ra6 Bc5 37. Rc6 Qb8 38. Rxc8+ Qxc8 39. g3 Qc7 40. Qb5 Qe7 41. Kg2 Kh7 42. h4 Qd6 43. c4 Qe7 44. Qc6 Qf8 45. Qe6 Bd6 46. Bf3 Bc5 47. Bh5 Bd6 48. Bg6+ Kh8 49. Kh3 Bc5 50. Kg4 Bd6 51. Kh5 Bc5 52. g4 Be7 53. Qf7 Qxf7 54. Bxf7 Kh7 55. g5 hxg5 56. hxg5 fxg5 57. Kg4 Kh6 58. Bg6 Bd6 59. Kf3 Be7 60. Kg3 e4 61. Kf2 Bc5+ 62. Kg3 g4 63. Kxg4 e3 64. Kf3 Kg5 65. d6 Kf6 66. d7 Ke7 67. Be8 Kd8 68. Ke2 Bb6 69. Kd3 Bc5 70. c3 Bb6 71. Bf7 Kxd7 72. Bh5 Kd6 73. Ke4 Bc5 74. Be2 Bb6 75. Kf4 Bc5 76. Kg5 Ke7 77. Kg6 Kf8 78. Bf3 Bb6 79. Kh5 Bc5 80. Kg5 Bb6 81. Kg6 Bc5 82. Kg5 Bb6 83. Kf4 Bc5 84. Ke5 Bb6 85. Kd6 Ke8 86. c5 Ba5 87. c4 Kd8 88. c6 Bc7+ 89. Ke6 Ke8 90. Bh5+ Kd8 91. Kf7 1-0
2024.05.14 Titled Tue 14th May Late
543641 Sroczynski, M (2256) Koellner, Ruben Gideon (2439) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nge2 Nbd7 5. f3 c6 6. Be3 d5 7. Qd2 dxe4 8. Nxe4 Nxe4 9. fxe4 Nf6 10. Ng3 Ng4 11. O-O-O Be7 12. Kb1 Nxe3 13. Qxe3 O-O 14. Bc4 exd4 15. Rxd4 Qb6 16. Nf5 Bxf5 17. exf5 Bf6 18. Rhd1 c5 0-1
2024.05.14 Titled Tue 14th May Late
543974 Koellner, Ruben Gideon (2439) Zou, Chen (2449) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. Nbd2 Nc6 5. c3 Bg4 6. dxc5 a5 7. Bb5 e6 8. b4 Nd7 9. Bxc6 bxc6 10. h3 Bh5 11. a3 Be7 12. Bb2 O-O 13. O-O Qb8 14. Qc1 Bg6 15. Nb3 e5 16. Nxa5 Rxa5 17. bxa5 Nxc5 18. Ra2 Bd3 19. c4 Qb3 20. Ra1 Bxf1 21. cxd5 Ba6 22. Bxe5 Qxd5 23. Qc3 f6 24. Bf4 Ne6 25. Bg3 Qc5 26. Qb3 Qc4 27. Qxc4 Bxc4 28. Rc1 Bb5 29. a4 Bxa4 30. Ra1 Bb5 31. a6 Ra8 32. a7 Bc5 33. Bb8 Kf7 34. Nd2 f5 35. Nb3 Bb6 36. Na5 Bxa7 37. Nxc6 Bxc6 38. Bxa7 Bb7 39. Bd4 Nxd4 40. Rb1 Be4 41. Rc1 Ne2+ 42. Kh2 Nxc1 43. Kg3 Ne2+ 44. Kh4 Kg6 45. f4 Kh6 46. g4 fxg4 47. hxg4 g5+ 48. fxg5+ Kg6 49. Kh3 Kxg5 50. Kh2 Ra3 51. Kh3 Rxe3+ 52. Kh2 Nf4 53. Kg1 Re2 54. Kf1 Bf3 55. Kg1 Kxg4 56. Kf1 Kg3 57. Kg1 Re1# 0-1
2024.05.08 Chess.com Classic Play-In
545855 Koellner, Ruben Gideon (2439) Idani, P (2605) 1/2-1/2
1. d4 Nf6 2. Nf3 c5 3. d5 b5 4. e4 Nxe4 5. Bd3 Nf6 6. Bxb5 g6 7. O-O Bg7 8. Re1 O-O 9. Nc3 Bb7 10. d6 exd6 11. Qxd6 Qb6 12. Bf4 Nc6 13. a4 Rfe8 14. Be3 Nb4 15. Bxc5 Qxd6 16. Bxd6 Nxc2 17. Rxe8+ Nxe8 18. Rd1 a6 19. Bxd7 Nxd6 20. Rxd6 Rd8 21. Rd2 Nb4 22. Bg4 Re8 23. h4 f5 24. Bh3 Bxc3 25. bxc3 Nd5 26. c4 Nf4 27. Kh2 Bc6 28. a5 Bxf3 29. gxf3 Re5 30. Ra2 Re1 31. Rc2 Kf8 32. c5 Ke8 33. c6 Kd8 34. Rc4 Ne6 35. Rb4 h5 36. Rb7 Kc8 37. Re7 Nd4 38. Rxe1 Nxf3+ 39. Kg3 Nxe1 40. Kf4 Kc7 41. Kg5 Nf3+ 42. Kxg6 Nxh4+ 43. Kxh5 Nf3 44. Bxf5 Nd4 45. Bd3 Nxc6 46. Bxa6 Nxa5 47. Be2 Kd6 48. Kg5 Ke7 49. Bf3 Nc4 50. Bd5 Nd6 51. f4 Kf8 52. Kf6 Ne8+ 53. Kg6 Nd6 54. Kf6 Ne8+ 55. Ke5 Ke7 56. f5 Nf6 57. Bc4 Nd7+ 58. Kf4 Nf6 59. Be6 Ne8 60. Kg5 Nf6 61. Kg6 Ne4 62. Bd5 Nf6 63. Bf3 Nd7 64. Bd5 Nf6 65. Bg2 Nd7 66. Bf1 Nf6 67. Bb5 Ng4 68. Bc4 Nf6 69. Kg5 Ne4+ 70. Kf4 Nf6 71. Ke5 Nd7+ 72. Kf4 Nf6 1/2-1/2
2024.05.08 Chess.com Classic Play-In
545936 Koellner, Ruben Gideon (2439) Yoo, Christopher Woojin (2600) 1/2-1/2
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. c3 e6 5. Nbd2 Be7 6. Bd3 Nbd7 7. O-O Qc7 8. Re1 O-O 9. e4 cxd4 10. cxd4 dxe4 11. Nxe4 Nxe4 12. Rxe4 Qd8 13. Ne5 f5 14. Re2 Nxe5 15. dxe5 Bd7 16. Bf4 Rc8 17. Qb3 Qb6 18. Qxb6 axb6 19. Rd1 Rfd8 20. Be3 Bb5 21. Red2 Bxd3 22. Rxd3 Rxd3 23. Rxd3 Rc2 24. Rb3 Bc5 25. h3 Bxe3 26. fxe3 Rc6 27. Rd3 Rc2 28. Rb3 Rc6 29. Rd3 Rc2 30. b4 Rxa2 31. Rd8+ Kf7 32. Rd7+ Kf8 33. Rxb7 Re2 34. Rxb6 Rxe3 35. Rxe6 Kf7 36. Rb6 Rxe5 37. Kf2 Re4 38. Kf3 g5 39. b5 Rb4 40. Rb8 Rb3+ 41. Kf2 g4 42. hxg4 fxg4 43. b6 Kg7 44. Rb7+ Kg6 45. Rb8 Kg7 46. Rb7+ Kg6 47. Rb8 g3+ 48. Ke2 Kg7 49. Rb7+ Kg6 50. Rb8 h5 51. Rg8+ Kh7 52. Rg5 Kh6 53. Rg8 h4 54. Rb8 Kg7 55. Rb7+ Kg6 56. Rb8 Kh7 57. Rb7+ Kh6 58. Rb8 Kg6 59. Rg8+ Kh6 60. Rb8 1/2-1/2
2024.05.08 Chess.com Classic Play-In
546011 Daneshvar, Bardiya (2582) Koellner, Ruben Gideon (2439) 1-0
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. Qb3 b6 6. h3 c5 7. g4 Bd7 8. Bg2 Nc6 9. Qd1 Bg7 10. d5 Nd4 11. Nxd4 cxd4 12. Qxd4 O-O 13. Qd3 Rc8 14. Bd2 e6 15. O-O exd5 16. cxd5 Re8 17. Rac1 Qe7 18. Rfe1 h5 19. g5 Nh7 20. h4 Nf8 21. Bf4 Be5 22. Bxe5 Qxe5 23. Qg3 Rc4 24. Qxe5 Rxe5 25. e4 Re8 26. Bf1 Rc5 27. Rcd1 Rec8 28. Re3 b5 29. Rd4 a5 30. a3 Kg7 31. f4 Rb8 32. b4 axb4 33. axb4 Rc7 34. e5 Ra7 35. exd6 Ra6 36. Ne4 Bf5 37. Nf6 Nd7 38. Ne8+ Kf8 39. Nc7 Rxd6 40. Bxb5 Rdb6 41. Bc6 Rxb4 42. Rxb4 Rxb4 43. Re8+ Kg7 44. Rd8 Nc5 45. Ne8+ Kf8 46. d6 Ne6 47. Ra8 Rb1+ 48. Kh2 Rb2+ 49. Bg2 Rxg2+ 50. Kh1 Nc7 51. Nxc7+ Kg7 52. Kxg2 Be4+ 53. Kg3 Bxa8 54. d7 Bc6 55. d8=Q 1-0
2024.05.08 Chess.com Classic Play-In
546106 Koellner, Ruben Gideon (2439) Sjugirov, S (2692) 1/2-1/2
1. d4 Nf6 2. Nf3 d5 3. e3 g6 4. Nbd2 Bg7 5. b4 a5 6. b5 c5 7. bxc6 Nxc6 8. a4 O-O 9. c3 Bf5 10. Ba3 Qc7 11. Qb3 Rfc8 12. Be2 e5 13. h3 exd4 14. cxd4 Bf8 15. Bxf8 Kxf8 16. Rc1 Qe7 17. O-O Nb4 18. Ne5 Rc7 19. Rxc7 Qxc7 20. Qa3 Rc8 21. Bb5 Qc3 22. Qxc3 Rxc3 23. g4 Be6 24. Ndf3 Ne4 25. Rd1 Rc2 26. Bd3 Ra2 27. Bxe4 dxe4 28. Ng5 Bd5 29. Rc1 Rc2 30. Rxc2 Nxc2 31. Nd7+ Ke7 32. Nb6 Kd6 33. Nxh7 Bb3 34. Nf6 Kc6 35. Nc8 Ne1 36. Kf1 Nf3 37. Nxe4 Bxa4 38. Kg2 Ne1+ 39. Kg3 Bc2 40. Nc3 Bd3 41. h4 Kc7 42. Na7 Kb6 43. Nc8+ Kc7 44. Na7 Kb6 45. Nc8+ Kc7 1/2-1/2
2024.05.08 Chess.com Classic Play-In
546186 Lupulescu, C (2588) Koellner, Ruben Gideon (2439) 0-1
1. d4 d6 2. e4 Nf6 3. f3 g6 4. c4 c5 5. d5 Bg7 6. Ne2 O-O 7. Nec3 e6 8. Be3 exd5 9. cxd5 Nh5 10. g4 Nf6 11. h4 h5 12. g5 Nfd7 13. Nd2 Ne5 14. Be2 Re8 15. Qc2 Na6 16. a3 Nc7 17. Nd1 b5 18. Nf2 Rb8 19. O-O a5 20. Rae1 a4 21. f4 Nd7 22. Bf3 b4 23. Nc4 Nb6 24. Be2 Nxc4 25. Bxc4 bxa3 26. bxa3 Nb5 27. Bxb5 Rxb5 28. Qxa4 Ra5 29. Qb3 Ba6 30. Bd2 Rb5 31. Qa4 Qb6 32. e5 dxe5 33. Ne4 Rd8 34. f5 Rxd5 35. fxg6 fxg6 36. Qc4 Qe6 37. Nf6+ Bxf6 38. Rxf6 Qg4+ 39. Qxg4 hxg4 40. Bc3 Rb3 41. Bxe5 Bd3 42. Bd6 Bf5 43. Rf8+ Kg7 44. Re7+ Kxf8 0-1
2024.05.08 Chess.com Classic Play-In
546247 Deac, Bogdan-Daniel (2693) Koellner, Ruben Gideon (2439) 1-0
1. d4 d6 2. Nf3 Nf6 3. Nc3 Nbd7 4. e4 e5 5. Rg1 c6 6. a4 h6 7. h3 Be7 8. Be3 Qa5 9. Qd2 b5 10. b4 Qxb4 11. axb5 cxb5 12. Nxb5 Qb2 13. Qc3 Qxc3+ 14. Nxc3 Bb7 15. d5 O-O 16. Bd3 Rfc8 17. Kd2 a5 18. Rgb1 Ba6 19. Rxa5 Bxd3 20. Rxa8 Rxa8 21. cxd3 Bd8 22. Kc2 Rc8 23. Rb5 Kf8 24. Nd2 Ke7 25. Nc4 Bc7 26. Rb7 Ne8 27. Nb5 h5 28. Na7 Ra8 29. Nc6+ Kf8 30. Nxd6 Bxd6 31. Rxd7 Ra2+ 32. Kb1 Re2 33. Kc1 f6 34. Kd1 Ra2 35. Ke1 Ba3 36. Ra7 Ra1+ 37. Ke2 Bb2 38. Bc5+ Kg8 39. Rxa1 Bxa1 40. d6 1-0
2024.05.08 Chess.com Classic Play-In
546331 Koellner, Ruben Gideon (2439) Demchenko, A (2609) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O Nc6 7. c3 e5 8. dxe5 dxe5 9. a4 Nh5 10. g3 Bh3 11. Re1 h6 12. b4 Qf6 13. Bf1 Bxf1 14. Nxf1 Rad8 15. Qe2 Qe6 16. Ne3 Rd7 17. Qc4 Nd8 18. Ba3 Qxc4 19. Nxc4 Rd3 20. Re3 Rxe3 21. Nxe3 Nf6 22. b5 Re8 23. Nd2 Ne6 24. f3 Bf8 25. Bxf8 Kxf8 26. Ndc4 Nc5 27. Kf2 a6 28. Ke2 Nfd7 29. Nd5 Rc8 30. Nb4 Ra8 31. Ra2 f6 32. h4 h5 33. Rd2 axb5 34. axb5 Ra4 35. Ne3 Ra3 36. Nbd5 c6 37. bxc6 bxc6 38. Nb4 Rxc3 39. Nxc6 Nb6 40. Rd8+ Kg7 41. Nb4 Nb3 42. Rb8 Na4 43. Nbd5 Nd4+ 44. Kf2 Rc6 45. Rb7+ Kf8 46. Ne7 Rb6 47. Rxb6 Ke8 48. Rb7 1-0
2024.05.08 Chess.com Classic Play-In
546390 Ter Sahakyan, S (2652) Koellner, Ruben Gideon (2439) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 c6 6. a3 h6 7. g4 Be7 8. Be3 Qc7 9. h4 Nf8 10. g5 hxg5 11. hxg5 Ng4 12. Bc4 Nxe3 13. fxe3 Be6 14. Qe2 Rh3 15. d5 Bd7 16. dxc6 bxc6 17. O-O-O g6 18. Rh1 Rxh1 19. Rxh1 Be6 20. Bxe6 Nxe6 21. Rh8+ Bf8 22. Qc4 O-O-O 23. Rh7 Bg7 24. Kb1 Rh8 25. Rxh8+ Bxh8 26. Na2 Bg7 27. Nb4 Kd7 28. Qf1 Ke7 29. Qc4 Kd7 30. Qf1 a5 31. Nd3 Ke7 32. a4 Qb6 33. Qe1 Qa7 34. b3 Qc7 35. Qc3 Qb6 36. Qd2 Qc7 37. Qc3 Qb6 38. Qd2 Qc7 39. Qc3 1/2-1/2
2024.05.08 Chess.com Classic Play-In
546453 Smirnov, P (2500) Koellner, Ruben Gideon (2439) 1-0
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. O-O h6 8. Re1 Qc7 9. a5 Nf8 10. d5 Ng6 11. h3 O-O 12. Be3 Nh5 13. Bb3 Nhf4 14. a6 c5 15. axb7 Qxb7 16. Kh2 Kh7 17. Ng1 Nh8 18. Bxf4 exf4 19. e5 Ng6 20. Nf3 a6 21. Qd3 Qc7 22. Ne4 Bb7 23. exd6 Bxd6 24. h4 Kg8 25. Nxd6 Qxd6 26. h5 Ne7 27. Rad1 Rad8 28. Re5 Qf6 29. Qe4 Nc8 30. Rf5 Qxb2 31. Qxf4 Nd6 32. Re5 c4 33. Ba4 Qa2 34. Bc6 Qxc2 35. Rde1 Bc8 36. Nd4 Qb2 37. R1e3 c3 38. Re2 Qb8 39. R5e3 Qc7 40. Rxc3 Nb5 41. Qxc7 Nxc7 42. Rc5 Rd6 43. Re7 Nb5 44. Bxb5 axb5 45. Nxb5 Rf6 46. d6 Bg4 47. f3 Be6 48. d7 Rf5 49. Rxf5 Bxf5 50. Nd6 Be6 51. Rxe6 fxe6 52. Ne8 Kf7 53. d8=Q Rxe8 54. Qd3 Re7 55. Qg6+ Kf8 56. g4 Re8 57. Kg3 e5 58. Qf5+ Kg8 59. Qd7 Kf8 60. Kf2 Re7 61. Qd6 Kf7 62. Ke3 Re6 63. Qd5 Kf6 64. Ke4 Re7 65. Qd6+ Kf7 66. Kf5 Re8 67. Qd5+ Kf8 68. Kg6 Re7 69. Qd8+ Re8 70. Qxe8+ Kxe8 71. Kxg7 Ke7 72. Kxh6 Kf6 73. g5+ Kf5 74. g6 e4 75. fxe4+ Kxe4 76. g7 1-0
2024.05.07 Titled Tue 7th May Early
548152 Vega Gutierrez, S (2382) Koellner, Ruben Gideon (2439) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. O-O h6 8. Re1 Qc7 9. a5 Nf8 10. h3 g5 11. Bb3 Ng6 12. Qe2 g4 13. Nh2 gxh3 14. g3 h5 15. Bg5 Rg8 16. Kh1 h4 17. gxh4 Nh7 18. Bxe7 Qxe7 19. h5 Nf4 20. Qf3 Rg2 21. Rg1 Ng5 22. Qe3 Qf6 23. dxe5 dxe5 24. Rad1 Bd7 25. Na4 Rd8 26. Qxa7 Bc8 27. Qe3 Rxg1+ 28. Rxg1 Ng2 29. Qg3 Rd2 30. f3 Qf4 31. Qxf4 exf4 32. Nb6 Be6 33. Bxe6 fxe6 34. Nc4 Rxc2 35. Nd6+ Ke7 36. Nxb7 Rxb2 37. a6 Ra2 38. Nc5 Nh7 39. Rd1 Nf6 40. h6 Ra5 41. h7 Nxh7 42. Rd7+ Kf6 43. Rxh7 Rxc5 44. Nf1 Ra5 45. a7 Ra1 46. Kh2 Ne1 47. Nd2 Ra2 48. Kxh3 Ke5 49. Nc4+ Kd4 50. Nb6 Nxf3 51. a8=Q Rxa8 52. Rd7+ Kxe4 53. Nxa8 c5 54. Nb6 Ne5 55. Rc7 Kd4 56. Nd7 Nxd7 57. Rxd7+ Ke4 58. Kg4 e5 59. Rd1 c4 60. Re1+ Kd4 61. Kf3 c3 62. Re4+ Kd3 63. Rxe5 c2 64. Rd5+ Kc3 65. Rd8 c1=Q 66. Rc8+ Kb2 67. Rxc1 Kxc1 68. Kxf4 1/2-1/2
2024.05.07 Titled Tue 7th May Early
548399 Koellner, Ruben Gideon (2439) Grot, Blazej (2046) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Bd6 6. Bd3 Qc7 7. O-O Nbd7 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6 11. Bc2 b6 12. Bg5 Bb7 13. h3 Be7 14. dxc5 Qxc5 15. Be3 Qc7 16. Ba4+ Bc6 17. Bf4 Qb7 18. Ne5 Bxa4 19. Qxa4+ b5 20. Qb3 O-O 21. a4 b4 22. c4 a5 23. Qf3 Qxf3 24. Nxf3 Rfd8 25. Rfd1 Rac8 26. b3 Ne4 27. Be3 Bf6 28. Rac1 Nc3 29. Rxd8+ Rxd8 30. Kf1 g6 31. g4 Kf8 32. Bb6 Ra8 33. Rc2 Ke7 34. Rd2 Ne4 35. Rd3 Ke8 36. Nd2 Nc3 37. Nf3 Ne4 38. Ke2 Nc3+ 39. Ke3 Ra6 40. c5 Nd5+ 41. Ke4 Nxb6 42. Rd6 Bd8 43. Nd4 Nd7 44. Rxa6 Nxc5+ 45. Ke5 Nxa6 46. Kd6 Be7+ 47. Kc6 Nc5 48. Kb5 e5 49. Nc6 Nxb3 50. Nxe5 Nd4+ 51. Kxa5 b3 52. Nd3 Ba3 53. Kb6 b2 54. Nxb2 Bxb2 55. a5 Ne6 56. a6 Bd4+ 57. Kc6 Bxf2 58. Kd5 Ke7 59. Ke5 h5 60. gxh5 gxh5 61. Kf5 h4 62. Kg4 Kf6 63. Kh5 Ke5 64. Kg4 f5+ 65. Kh5 f4 66. Kg4 Ke4 67. a7 Bxa7 68. Kxh4 f3 69. Kg3 f2 70. Kg2 Nf4+ 71. Kf1 Kf3 72. h4 Ne2 73. h5 Ng3# 0-1
2024.05.07 Titled Tue 7th May Late
550869 Koellner, Ruben Gideon (2439) Novik, Ma (2404) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 a5 7. b5 c6 8. a4 Bf5 9. Ba3 Nbd7 10. Rc1 Re8 11. Be2 Ne4 12. cxd5 cxd5 13. Nxe4 Bxe4 14. O-O e5 15. dxe5 Nxe5 16. Nxe5 Bxe5 17. Bf3 Qf6 18. Bxe4 dxe4 19. Qd5 b6 20. Rc6 Qf5 21. Rd1 h5 22. Rxb6 Rad8 23. Qxd8 Rxd8 24. Rxd8+ Kh7 25. Rb7 h4 26. Rdd7 Qg4 27. Rxf7+ Kh6 28. f3 exf3 29. Rxf3 Qe4 30. Bf8+ Kg5 31. Rbf7 Qb1+ 32. Rf1 Qe4 33. R7f3 Kh5 34. b6 g5 35. h3 Bg3 36. b7 Qxb7 37. Bc5 Qd5 38. Bd4 Qa2 39. Rf5 Qe2 40. Kh1 1-0
2024.05.07 Titled Tue 7th May Late
551008 Tomasi, Albert (2295) Koellner, Ruben Gideon (2439) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. Be3 Nf8 10. h3 g5 11. b4 Ng6 12. b5 g4 13. hxg4 Bxg4 14. Be2 h5 15. Rb1 h4 16. Ng5 Bxe2 17. Qxe2 Nh5 18. bxc6 bxc6 19. dxe5 Nhf4 20. Qg4 dxe5 21. Ne2 Rg8 22. Qf5 Bxg5 23. Qxg5 Ne7 24. Qh6 Nxg2 25. Bc5 Nxe1+ 26. Kf1 Nf3 27. Qf6 Nd2+ 28. Ke1 Nxb1 0-1
2024.05.07 Titled Tue 7th May Late
551267 Koellner, Ruben Gideon (2439) Sarana, A (2706) 0-1
1. d4 Nf6 2. Nf3 d5 3. Nbd2 Bf5 4. e3 c6 5. Ne5 h5 6. Bd3 e6 7. Bxf5 exf5 8. c4 Nbd7 9. cxd5 cxd5 10. Qb3 Qb6 11. Nxd7 Kxd7 12. Qxb6 axb6 13. Nf3 Bd6 14. Bd2 Ne4 15. Ke2 g5 16. h4 g4 17. Ne1 f4 18. exf4 Nxd2 19. Kxd2 Bxf4+ 20. Kd1 Rhe8 21. g3 Bh6 22. Nc2 Re4 23. Re1 f5 24. Rxe4 fxe4 25. Ne3 Ra4 26. Nc2 Rc4 27. b3 Rc3 28. Nb4 Kd6 29. Ke2 Ke6 30. Rb1 Bg7 31. Rb2 Bxd4 32. Rd2 Ke5 33. Rd1 Rf3 34. Rf1 Bc5 35. Nc2 d4 36. Ne1 d3+ 37. Kd1 Rxf2 38. Rxf2 Bxf2 39. b4 Bxe1 40. Kxe1 e3 41. b5 Kd4 42. a4 Kc3 43. a5 bxa5 44. b6 a4 45. Kf1 a3 46. Kg2 a2 47. Kh2 a1=Q 48. Kg2 d2 49. Kh2 d1=Q 50. Kg2 Qd2# 0-1
2024.05.07 Titled Tue 7th May Late
551409 Roberson, P (2426) Koellner, Ruben Gideon (2439) 0-1
1. a4 e5 2. Ra3 Bxa3 3. Nxa3 Nf6 4. b3 d5 5. Bb2 Nbd7 6. e3 O-O 7. Ne2 c6 8. g3 Re8 9. Bg2 e4 10. O-O Ne5 11. Qa1 Nf3+ 12. Kh1 Nxd2 13. Rd1 Nf3 14. c4 Ng4 15. Rf1 Nfxh2 16. Bxg7 Nxf1 17. Bxf1 f6 18. Nf4 Kxg7 19. cxd5 cxd5 20. Nb5 Re5 21. Nd4 Bd7 22. Kg1 Rc8 23. Bh3 Qc7 24. Kg2 Qc1 25. Qa2 Qd1 26. Qa3 Rc1 27. Nh5+ Kf7 0-1
2024.05.07 Titled Tue 7th May Late
551654 Koellner, Ruben Gideon (2439) Shamsi, Mohammadho (2217) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 Nc6 5. Nbd2 e6 6. Bd3 Qc7 7. O-O b6 8. Re1 Be7 9. e4 dxe4 10. Nxe4 O-O 11. Nxf6+ Bxf6 12. dxc5 bxc5 13. Qe2 Bb7 14. Be3 Ne7 15. Rad1 Rfd8 16. h3 Nd5 17. Bc1 Nf4 18. Bxf4 Qxf4 19. Nh2 g6 20. Qg4 Qc7 21. Be4 h5 22. Qf3 Bxe4 23. Qxe4 Rxd1 24. Qxa8+ Rd8 25. Qf3 Qb6 26. Qxf6 Rd2 27. Nf3 Rxb2 28. Rd1 1-0
2024.05.07 Titled Tue 7th May Late
551921 Ibarra Jerez, JC (2559) Koellner, Ruben Gideon (2439) 1-0
1. d3 d6 2. e4 Nf6 3. Nc3 e5 4. g3 Be7 5. Bg2 c5 6. Nge2 Nc6 7. O-O O-O 8. h3 Nd4 9. f4 Be6 10. f5 Bd7 11. g4 h6 12. Ng3 Nh7 13. Nd5 Bc6 14. c3 Bxd5 15. exd5 Nb5 16. Ne4 Nc7 17. c4 Ne8 18. Be3 Bh4 19. b4 b6 20. a4 cxb4 21. a5 bxa5 22. Qa4 Nef6 23. Nd2 Bg5 24. Bxg5 Qb6+ 25. Kh2 Nxg5 26. Qxa5 Qe3 27. Qxb4 Qxd3 28. Nf3 Nxf3+ 29. Rxf3 Qd4 30. Rff1 Rfd8 31. Rad1 Qb6 32. Qd2 Rab8 33. Rc1 e4 34. Qf4 Re8 35. h4 e3 36. g5 hxg5 37. hxg5 Nd7 38. Rf3 Qb2 39. Rxe3 Rxe3 40. Qxe3 Qe5+ 41. Qxe5 Nxe5 42. Ra1 Nxc4 43. Rxa7 Ne3 44. g6 Rf8 45. Be4 fxg6 46. fxg6 Re8 47. Kg3 Kf8 48. Rf7+ Kg8 49. Rd7 Kf8 50. Kf4 Nc4 51. Bf5 Rb8 52. Rf7+ Kg8 53. Be6 Kh8 54. Rf5 Ne5 55. Rh5# 1-0
2024.05.07 Titled Tue 7th May Late
552129 Koellner, Ruben Gideon (2439) Hamley, Ryan (2088) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 d5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 Qe7 11. a3 Rd8 12. c4 dxc4 13. Nxc4 Bc7 14. Qc2 e5 15. b5 e4 16. Bxf6 Qxf6 17. Bxe4 Ne7 18. Bxh7+ Kh8 19. Be4 Rb8 20. Rad1 Be6 21. Rxd8+ Rxd8 22. Bxb7 Rb8 23. Bc6 Nxc6 24. bxc6 Bd5 25. e4 Bxc6 26. Ne3 Bb6 27. Nd5 Bxd5 28. exd5 Rd8 29. Rd1 Rd6 30. a4 g6 31. Qe4 Kg7 32. Qe5 Bc5 33. h4 a5 34. g4 Rd8 35. Kg2 Bd6 36. Qxf6+ Kxf6 37. Rd3 Rc8 38. Ng5 Rc4 39. Rf3+ Ke7 40. Rxf7+ Ke8 41. f3 Rxa4 42. Rf6 Ra2+ 43. Kf1 Ke7 44. Rxg6 Rh2 45. h5 a4 46. Ne4 Bb4 47. Ra6 a3 48. h6 a2 49. h7 Rxh7 50. Rxa2 Rh1+ 51. Kg2 Rd1 52. Ra7+ Kf8 53. Ra8+ Ke7 54. Ra7+ Kf8 55. Rd7 Ke8 56. Nf6+ Kf8 57. g5 Be7 58. Ne4 Rd4 59. d6 Bxg5 60. Nxg5 Ra4 61. Ne4 Ke8 62. Re7+ Kd8 63. Kg3 Ra5 64. Kf4 Rh5 65. Re5 Rh4+ 66. Kg5 Rh3 67. f4 Rh8 68. Nf6 Rf8 69. Rb5 Kc8 70. Rc5+ Kd8 71. Ra5 Kc8 72. Ra8+ 1-0
2024.05.07 Titled Tue 7th May Late
552233 Koellner, Ruben Gideon (2439) Sjugirov, S (2692) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 cxd4 5. exd4 b6 6. c3 Bb7 7. Bd3 Be7 8. O-O d6 9. Qe2 Nbd7 10. Re1 O-O 11. Nf1 a6 12. a4 Re8 13. Ng3 Qc7 14. h4 Bf8 15. h5 e5 16. dxe5 dxe5 17. Ne4 Nxe4 18. Bxe4 Bxe4 19. Qxe4 Nf6 20. Qf5 e4 21. Bf4 Qc5 22. Nd4 Rad8 23. Qxc5 Bxc5 24. h6 Bxd4 25. cxd4 Nd5 26. Bd2 Rc8 27. Rac1 f5 28. hxg7 Kxg7 29. g3 Kg6 30. Kg2 h5 31. Rh1 Ne7 32. Be3 Nd5 33. Bd2 Red8 34. Be3 Nb4 35. b3 Nd5 36. Bd2 Ne7 37. Be3 b5 38. axb5 axb5 39. Rc5 Rxc5 40. dxc5 Rd3 41. Rc1 Nc6 42. Ra1 Nb4 43. Ra5 Nd5 44. Rxb5 Nxe3+ 45. fxe3 Rxe3 46. b4 Rc3 47. Rb8 Rc2+ 48. Kf1 h4 49. gxh4 f4 50. Rf8 f3 51. h5+ Kxh5 52. Re8 Rc4 53. c6 Kg4 54. b5 Kf4 55. b6 Ke3 56. Kg1 f2+ 57. Kg2 Rxc6 58. b7 Rg6+ 59. Kf1 Rg1# 0-1
2024.05.07 Titled Tue 7th May Late
552334 Gavrilin, Roman (2188) Koellner, Ruben Gideon (2439) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 c6 6. g4 h6 7. h4 exd4 8. Nxd4 Ne5 9. Be2 d5 10. Nf5 Bxf5 11. exf5 d4 12. g5 hxg5 13. hxg5 dxc3 14. Qxd8+ Rxd8 15. gxf6 gxf6 16. f4 Bb4 17. b3 Bc5 18. Rf1 Nd7 19. Bd3 Nb6 20. Ke2 Rh2+ 21. Kf3 Kd7 22. a3 Rg8 23. b4 Rh3+ 24. Ke2 Rg2+ 25. Kd1 Bd4 26. a4 Rxd3+ 27. cxd3 c2+ 28. Ke1 Bxa1 0-1
2024.05.07 Titled Tue 7th May Late
552556 Koellner, Ruben Gideon (2439) Altini, N (2373) 1-0
1. d4 d5 2. Nf3 Nf6 3. Nbd2 Bf5 4. e3 e6 5. Ne5 h6 6. Bd3 Bxd3 7. cxd3 Nbd7 8. f4 c5 9. O-O cxd4 10. exd4 Bd6 11. Ndf3 O-O 12. Be3 Qb6 13. Qe2 Rac8 14. h3 Rc7 15. g4 Rfc8 16. Rf2 Nf8 17. Raf1 Qa6 18. a3 Qa4 19. g5 Nh5 20. gxh6 Ng3 21. Qd1 Qxd1 22. Rxd1 Nf5 23. hxg7 Nxe3 24. gxf8=Q+ Kxf8 25. Re1 Rc1 26. Re2 Nf5 27. Kf2 Ke7 28. h4 Rxe1 29. Kxe1 Rh8 30. Rh2 Rh5 31. Kf2 Bc7 32. Kg2 Bb6 33. Kh3 Bxd4 34. Rc2 Bb6 35. Rg2 Rh7 36. Rg8 Be3 37. Rg4 b5 38. Ng5 Bxf4 39. Rxf4 f6 40. Nxh7 fxe5 41. Rg4 d4 42. Ng5 Ne3 43. Ne4 Nxg4 44. Kxg4 b4 45. axb4 a5 46. bxa5 Kd7 47. h5 Kc6 48. h6 Kd5 49. h7 Kc6 50. h8=Q Kd5 51. Qd8+ Kc6 52. Qd6+ Kb5 53. Qc5+ Ka6 54. Qb6# 1-0
2024.05.07 Titled Tue 7th May Late
552702 Banusz, T (2623) Koellner, Ruben Gideon (2439) 1-0
1. Nf3 Nf6 2. d4 d6 3. Bf4 g6 4. c3 Bg7 5. e3 O-O 6. h3 Nc6 7. Bh2 Re8 8. Be2 Bf5 9. O-O e5 10. Nbd2 e4 11. Ne1 h5 12. b4 Nh7 13. Kh1 h4 14. Bg4 Qd7 15. Nc2 Nf6 16. Bxf5 Qxf5 17. Qe2 Nd5 18. Qc4 Nb6 19. Qb3 a5 20. a4 g5 21. b5 Ne7 22. f3 exf3 23. Rxf3 Qe6 24. e4 Qxb3 25. Nxb3 Nc4 26. Bg1 Ng6 27. Ne3 Nxe3 28. Rxe3 b6 29. Rae1 Re7 30. Nd2 Rae8 31. Nc4 Bh6 32. e5 dxe5 33. dxe5 Bg7 34. Bh2 Bh6 35. Re4 Re6 36. Ne3 Bg7 37. Nd5 Rc8 38. c4 Kh7 39. Kg1 Bf8 40. Kf1 Bc5 41. Nf6+ Kg7 42. Rd1 Nf4 43. Bxf4 gxf4 44. Ng4 Rce8 45. Rxf4 Rxe5 46. Nxe5 Rxe5 47. Rd7 Bd6 48. Rdxf7+ Kg6 49. R7f6+ Kg7 50. R6f5 Re3 51. Rg4+ Kh6 52. Rxh4+ Kg6 53. Rf3 Re6 54. Rg4+ Kh5 55. Rf5+ Kh6 56. h4 Re3 57. Rfg5 Bb4 58. Kf2 Bc5 59. Rxc5 Rb3 60. Rc6+ Kh5 61. Rg8 Kxh4 62. Rh6# 1-0
2024.04.28 Bundesliga 2023-24
569082 Colbow, Collin (2404) Koellner, Ruben Gideon (2483) 1/2-1/2
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 O-O 6. h3 d6 7. c3 a5 8. Re1 h6 9. d4 Ba7 10. Bb3 Re8 11. Bc2 exd4 12. cxd4 Nb4 13. Nc3 Nxc2 14. Qxc2 c6 15. Bf4 Be6 16. Rad1 d5 17. e5 Ne4 18. Nd2 f5 19. Nb3 Qh4 20. Bh2 Nxc3 21. Qxc3 a4 22. Nc5 Bxc5 23. Qxc5 f4 24. f3 Qg5 25. Kh1 Qf5 26. Rc1 g5 27. Qb4 Qf7 28. Rc3 Qe7 29. Qxe7 Rxe7 30. Rec1 Ra6 31. Ra3 Re8 32. h4 Bf5 33. hxg5 hxg5 34. g3 fxg3 35. Bxg3 Kf7 36. Kg2 Rh8 1/2-1/2
2024.04.27 Bundesliga 2023-24
569018 Koellner, Ruben Gideon (2483) Kovacevic, Bl (2396) 0-1
1. d4 e6 2. Nf3 f5 3. Bf4 Nf6 4. e3 d6 5. h4 Be7 6. c4 Ne4 7. Bd3 O-O 8. Qc2 Nc6 9. a3 e5 10. dxe5 dxe5 11. Bxe4 fxe4 12. Nxe5 Nxe5 13. Bxe5 Bxh4 14. g3 Bf6 15. Qxe4 Bxe5 16. Qxe5 Bg4 17. Nd2 c6 18. f3 Qd3 19. O-O-O Rae8 20. Qc5 b6 21. Qb4 c5 22. Qa4 Bd7 23. Qxa7 Rxe3 24. Qb7 Ba4 25. Qd5+ Qxd5 26. cxd5 Bxd1 27. Rxd1 Rd3 28. Re1 Rxd5 29. Re6 b5 30. f4 Rb8 31. Kc2 c4 32. Ne4 h6 33. g4 Rd3 34. f5 Rf3 35. Rg6 Kh7 36. Nc5 b4 37. axb4 Rxb4 38. Ne6 Rb7 39. Nf8+ Kg8 40. Ne6 Kh7 41. Nf8+ Kh8 42. Rc6 Rf2+ 43. Kc3 Rb3+ 44. Kxc4 Rg3 45. Ng6+ Kh7 46. Ne5 Rxb2 47. Ra6 Rf2 48. Ra1 Re2 49. Kd5 Rge3 50. Ng6 Rd2+ 51. Kc4 Rg2 52. Kd5 Rxg4 53. Nf8+ Kg8 54. Ne6 Kf7 55. Ra8 Rg1 56. Rf8+ Ke7 57. Rg8 Rxe6 58. fxe6 Rg5+ 59. Ke4 Kxe6 60. Kf4 Kf7 61. Ra8 Rb5 62. Ra6 Rb1 63. Kg4 Rf1 64. Kh5 Rf5+ 65. Kh4 Rf6 66. Ra4 g6 67. Ra7+ Kg8 68. Kg4 Rf7 69. Ra8+ Kg7 70. Ra5 Rc7 71. Ra4 h5+ 72. Kh4 Kh6 73. Ra6 Rc4+ 74. Kh3 Re4 75. Rb6 Kg5 76. Rb5+ Kf6 77. Rb6+ Kf5 78. Rb5+ Re5 79. Rb3 g5 80. Rf3+ Kg6 81. Ra3 h4 82. Ra8 Re3+ 83. Kh2 Kf5 84. Ra2 g4 85. Rf2+ Kg5 86. Rf8 Re2+ 87. Kh1 h3 88. Ra8 Kf4 89. Rf8+ Kg3 90. Rf1 Kh4 91. Ra1 g3 92. Ra4+ Kg5 93. Ra1 Kf4 94. Ra4+ Kf3 95. Ra1 Rd2 96. Re1 Kf2 97. Rg1 Rd3 98. Rf1+ Ke2 99. Rf2+ gxf2 100. Kh2 Rf3 101. Kh1 f1=Q+ 102. Kh2 Qg2# 0-1
2024.04.23 Titled Tue 23rd Apr Early
564099 Koellner, Ruben Gideon (2441) Brzezina, Piotr (2346) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 Bd6 5. Bd3 c5 6. c3 Nc6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 Qe7 11. a3 Rd8 12. c4 dxc4 13. Nxc4 Bc7 14. Qc2 h6 15. Ncd2 a6 16. Rfd1 Bd7 17. Rac1 Rac8 18. Qb1 Bb8 19. Ne4 Nxe4 20. Bxe4 Be8 21. Qa1 f6 22. Qb1 Rxd1+ 23. Rxd1 Rd8 24. Rc1 Qd6 25. g3 Bh5 26. Kg2 Bxf3+ 27. Bxf3 Rc8 28. Qg6 Qe7 29. Rd1 Ne5 30. Bxe5 Bxe5 31. Qe4 b6 32. Rd3 a5 33. bxa5 bxa5 34. Rb3 a4 35. Qxa4 Bd6 36. Qe4 Kf7 37. a4 Rc7 38. a5 Ra7 39. Rb5 Bc7 40. Qa4 Qd8 41. a6 Qc8 42. Bb7 Qd7 43. Qc4 Bd6 44. Rb3 Ke7 45. Rd3 Qc7 46. Qxc7+ Bxc7 47. f4 e5 48. Kf3 exf4 49. gxf4 Bb6 50. Ke4 Bc7 51. Kf5 Bb6 52. Kg6 Kf8 53. e4 Bc7 54. Rf3 Bd6 55. h4 Bc7 56. h5 Bb8 57. e5 fxe5 58. fxe5+ Ke7 59. Kxg7 Bxe5+ 60. Kxh6 Kd6 61. Kg6 Bd4 62. h6 Ke7 63. h7 Bb2 64. Rf7+ Kd6 65. Rf8 Bc3 66. h8=Q Bxh8 67. Rxh8 Kc7 68. Kf5 Kb6 69. Ke6 Kc7 70. Kd5 Kb6 71. Rh6+ Kc7 72. Kc5 Kb8 73. Rh8+ Kc7 74. Rc8+ Kd7 75. Kb6 1-0
2024.04.23 Titled Tue 23rd Apr Early
564394 Manon Og, R (1970) Koellner, Ruben Gideon (2441) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. Nf3 Nd7 8. O-O-O Bd6 9. Nb5 Ke7 10. Nd2 a6 11. Nxd6 cxd6 12. Nc4 Bxc4 13. Bxc4 h6 14. Bxf6+ Nxf6 15. Bd5 Rab8 16. f3 Rhc8 17. Rd3 Rc5 18. Rhd1 b5 19. b4 Rc7 20. Kb2 Rb6 21. c3 Nh5 22. g3 Nf6 23. f4 Nd7 24. Kb3 Nf6 25. R1d2 Rb8 26. fxe5 dxe5 27. a4 Rbc8 28. axb5 axb5 29. Ra2 Rd7 30. Ra5 Rb8 31. Ra6 Ne8 32. Rf3 f6 33. Re6+ Kd8 34. Rd3 Nc7 35. Rc6 Ke7 36. Rc5 Rb6 37. c4 Na6 38. Rc8 bxc4+ 39. Kxc4 Rxb4+ 40. Kc3 Rb8 41. Rc6 Nb4 42. Re6+ Kf8 43. Rd1 Nxd5+ 44. exd5 Rc8+ 45. Kb4 Rb7+ 46. Ka5 Ra8+ 47. Ra6 Rxa6+ 48. Kxa6 Rb2 49. d6 Ke8 50. d7+ Kd8 51. Ka7 Rb4 52. Ka6 Rd4 53. Rb1 Rxd7 54. Rb8+ Ke7 55. Rg8 Kf7 56. Rb8 Rc7 57. Kb5 Rc2 58. Ka4 Rxh2 0-1
2024.04.23 Titled Tue 23rd Apr Early
564480 Makarian, Rudik (2524) Koellner, Ruben Gideon (2441) 1-0
1. Nf3 d6 2. e4 Nf6 3. Nc3 e5 4. Bc4 Be7 5. d3 c6 6. a4 O-O 7. h3 d5 8. Bb3 d4 9. Ne2 Nbd7 10. O-O Bd6 11. c3 c5 12. Ng3 Bc7 13. Nf5 Re8 14. Bxf7+ Kxf7 15. Qb3+ Kf8 16. Ng5 Re7 17. Nxe7 Kxe7 18. Qf7+ Kd6 19. Qe6# 1-0
2024.04.23 Titled Tue 23rd Apr Early
564935 Koellner, Ruben Gideon (2441) Figueredo Losada, L (2323) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c6 4. Nbd2 Bf5 5. Ne5 h6 6. Bd3 Bxd3 7. cxd3 e6 8. f4 Nbd7 9. O-O Be7 10. Qf3 O-O 11. g4 Ne8 12. Qh3 c5 13. dxc5 Nxc5 14. Ndf3 Nd6 15. Bd2 Rc8 16. g5 hxg5 17. fxg5 g6 18. Bc3 Na4 19. Nc6 Nxc3 20. Nxd8 Ne2+ 21. Kf2 Rc2 22. Ke1 Nf5 23. a3 Rxd8 24. Rf2 Rdc8 25. Rxe2 Rxe2+ 26. Kxe2 Rc2+ 27. Kf1 Nxe3+ 28. Kg1 Bc5 29. d4 Bb6 30. Re1 Nc4 31. b3 1-0
2024.04.23 Titled Tue 23rd Apr Early
565289 Koellner, Ruben Gideon (2441) Shankland, S (2671) 0-1
1. d4 e6 2. Nf3 c5 3. e3 b6 4. Nbd2 Bb7 5. Bd3 Nf6 6. O-O cxd4 7. exd4 d6 8. c3 Nbd7 9. Re1 g6 10. Qe2 Bg7 11. a4 a6 12. Nc4 Qc7 13. Bf4 Bf8 14. h3 Be7 15. Bg3 O-O 16. Ne3 Rfe8 17. Ng4 Bf8 18. Nxf6+ Nxf6 19. Nd2 Nh5 20. Bh2 Bh6 21. Ne4 Bxe4 22. Bxe4 Ra7 23. Bf3 Nf4 24. Qf1 e5 25. dxe5 dxe5 26. Rad1 f5 27. Bxf4 Bxf4 28. Bd5+ Kh8 29. Qc4 e4 30. Qxc7 Rxc7 31. g3 Be5 32. Kg2 Kg7 33. h4 Kf6 34. f3 exf3+ 35. Bxf3 Rce7 36. Re2 h5 37. Rde1 Rd8 38. Re3 Rd6 39. Rd1 Red7 40. Rxd6+ Rxd6 41. Re2 Rd3 42. Rc2 a5 43. Rf2 Bd6 44. Rc2 Kg7 45. Re2 Kh6 46. Rc2 f4 47. gxf4 Bxf4 48. Re2 Bc7 49. Re6 Rd2+ 50. Re2 Rd6 51. Be4 Bd8 52. Bc2 Bxh4 53. Kh3 Bg5 54. Bb3 Rd3+ 55. Kg2 Rd2 56. Rxd2 Bxd2 57. Bd5 Bc1 58. b3 Bd2 59. c4 Kg5 60. Bf7 Kf6 61. Be8 Bb4 62. Kh3 Kg7 63. Kh4 Kh6 64. Kh3 g5 65. Bd7 g4+ 66. Kg2 Kg5 67. Kg3 h4+ 68. Kg2 h3+ 69. Kh1 Kh4 70. Bc6 g3 71. Bd5 g2+ 72. Bxg2 hxg2+ 73. Kxg2 Kg4 74. Kf1 Kf4 75. Ke2 Ke4 76. Kd1 Kd3 77. Kc1 Kc3 78. c5 Bxc5 0-1
2024.04.23 Titled Tue 23rd Apr Early
565536 Novik, Ma (2415) Koellner, Ruben Gideon (2441) 0-1
1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. Nf3 Nbd7 5. c3 d5 6. dxe5 dxe4 7. exf6 exf3 8. fxg7 Bxg7 9. O-O O-O 10. Bc2 fxg2 11. Re1 Qh4 12. Re4 Qh3 13. Bg5 h6 14. Rh4 Qe6 15. Qd3 Qg6 16. Qxg6 fxg6 17. Bxh6 Ne5 18. Bb3+ Nf7 19. Bxg7 Kxg7 20. Kxg2 Bd7 21. Nd2 Bc6+ 22. Kg1 Rad8 23. Rd4 Ng5 24. h4 Rxd4 25. cxd4 Nh3+ 26. Kh2 Rxf2+ 27. Kxh3 Rxd2 28. d5 Bxd5 29. Bxd5 Rxd5 30. Rc1 c6 31. Re1 Kf6 32. Rf1+ Rf5 33. Rd1 Rf2 34. b3 Rxa2 35. Rd7 b6 36. Rd6+ Kf5 37. Rxc6 Ra3 38. Rc3 a5 39. Rf3+ Ke4 40. Kg4 b5 41. Rf4+ Kd5 42. b4 a4 43. Rf6 Ra1 44. Rxg6 Rg1+ 45. Kf5 Rxg6 46. Kxg6 a3 47. h5 a2 48. h6 a1=Q 0-1
2024.04.23 Titled Tue 23rd Apr Early
565713 Koellner, Ruben Gideon (2441) Ezat, M (2349) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 a5 7. b5 c5 8. dxc5 Nbd7 9. Ba3 Qc7 10. Rc1 Nxc5 11. cxd5 b6 12. Bxc5 bxc5 13. e4 e6 14. dxe6 Bxe6 15. Bc4 Bxc4 16. Rxc4 Rad8 17. Qc2 Qb7 18. a4 Rfe8 19. O-O Bf8 20. Qc3 Nxe4 21. Nxe4 Rxe4 22. Rxe4 Qxe4 23. Qxa5 Ra8 24. Qc7 Rxa4 25. Re1 Qd5 26. Ne5 Re4 27. Nf3 Rxe1+ 28. Nxe1 Qe4 29. Kf1 Qc4+ 30. Kg1 Qxb5 31. g3 Qe2 32. Ng2 Qd1+ 0-1
2024.04.23 Titled Tue 23rd Apr Late
566778 Senft, Sean (2054) Koellner, Ruben Gideon (2441) 1-0
1. d4 d6 2. c4 e5 3. d5 f5 4. Nc3 Nf6 5. Bg5 Be7 6. Bxf6 Bxf6 7. e4 O-O 8. Bd3 fxe4 9. Nxe4 Bf5 10. Nf3 Nd7 11. O-O Be7 12. Qc2 Bg6 13. Nfd2 a5 14. Rae1 b6 15. Kh1 Qe8 16. Ng3 Bxd3 17. Qxd3 Nc5 18. Qc2 Bg5 19. Nde4 Bf4 20. Nxc5 bxc5 21. Ne4 Qg6 22. g3 Bh6 23. Qe2 Rab8 24. b3 a4 25. bxa4 Rb4 26. Nc3 Qf5 27. f3 Qg5 28. Rb1 Rxb1 29. Rxb1 Qd2 30. Qxd2 Bxd2 31. Nb5 Rxf3 32. Nxc7 e4 33. a5 Bxa5 34. Ne6 h5 35. Rb8+ Kh7 36. Rb7 Bc3 37. Kg2 Bd4 38. Ng5+ Kg6 39. Nxf3 exf3+ 40. Kxf3 Bc3 41. Rb6 Be5 42. a4 Kf5 43. a5 g5 44. a6 g4+ 45. Ke3 Bd4+ 46. Kd3 1-0
2024.04.16 Titled Tue 16th Apr Late
573476 Koellner, Ruben Gideon (2441) Novikova, Galina (2073) 1-0
1. d4 e5 2. dxe5 d6 3. Nf3 Bg4 4. exd6 Bxd6 5. Nc3 Nc6 6. Bg5 f6 7. Bh4 Qe7 8. e3 O-O-O 9. Bd3 Ne5 10. Qe2 Nxd3+ 11. cxd3 Bb4 12. h3 Bh5 13. Bg3 g5 14. d4 Nh6 15. Qb5 Bg6 16. O-O Nf5 17. Nd5 Rxd5 18. Qxd5 Nxg3 19. fxg3 Qxe3+ 20. Kh2 Bd6 21. Rae1 Bxg3+ 22. Kxg3 Qf4+ 23. Kf2 Rd8 24. Qe6+ Kb8 25. Kg1 h5 26. Qe3 Qd6 27. Qe7 Qd5 28. Qxf6 Be4 29. Rxe4 1-0
2024.04.16 Titled Tue 16th Apr Late
573685 Vovk, Or (2315) Koellner, Ruben Gideon (2441) 1/2-1/2
1. g4 d5 2. h3 h5 3. g5 e5 4. Bg2 Be6 5. d4 e4 6. c4 c6 7. Nc3 Ne7 8. Qb3 Qb6 9. c5 Qxb3 10. axb3 Na6 11. Ra4 Nc7 12. Bf4 Kd7 13. b4 a6 14. Bxc7 Kxc7 15. b5 Nf5 16. bxc6 bxc6 17. e3 h4 18. Bf1 Be7 19. Bxa6 Rhb8 20. b4 Bxg5 21. Nge2 Bd8 22. Kd2 Bc8 23. Bxc8 Rxa4 24. Nxa4 Kxc8 25. Rb1 g5 26. Ke1 Ne7 27. Kf1 f5 28. Kg2 Bc7 29. Nec3 g4 30. b5 cxb5 31. Rxb5 Ra8 32. Nb6+ Bxb6 33. cxb6 Kb7 34. Nxd5 Nxd5 35. Rxd5 Ra2 36. Rxf5 g3 37. Rf4 Kxb6 38. Rxh4 Rxf2+ 39. Kg1 Kb5 40. Rxe4 Kc4 41. Rg4 Rf3 42. Kg2 Rxe3 43. Rxg3 Re2+ 44. Kf3 Rh2 45. Kg4 Kxd4 46. Rf3 Ke5 47. h4 Rg2+ 48. Kh5 Ke6 49. Kh6 Ke7 50. Rf5 Rg1 51. Rg5 Rh1 52. h5 Kf7 53. Rf5+ Kg8 54. Rg5+ Kh8 55. Rb5 Rg1 56. Rb8+ Rg8 57. Rb7 Rd8 58. Rh7+ Kg8 59. Rg7+ Kh8 60. Rg6 Rc8 61. Rd6 Rb8 62. Kg6 Ra8 63. Kf6 Rb8 64. Kg6 Ra8 65. h6 Rb8 66. Kf7 Kh7 67. Ke7 Ra8 68. Kd7 Ra7+ 69. Kc6 Ra3 70. Kc5 Rc3+ 71. Kd4 Rh3 72. Ke5 Rh5+ 73. Kf4 Rxh6 74. Rxh6+ Kxh6 1/2-1/2
2024.04.16 Titled Tue 16th Apr Late
573891 Koellner, Ruben Gideon (2441) Stone, Vincent W (1982) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 O-O 5. Bc4 d5 6. exd5 Nxd5 7. c3 Bf5 8. O-O a6 9. Re1 b5 10. Bb3 Nc6 11. Ne4 Na5 12. Nc5 Nxb3 13. axb3 Qd6 14. b4 Rfe8 15. Ne5 f6 16. Nf3 e5 17. dxe5 fxe5 18. Ng5 Nf4 19. Qb3+ Qd5 20. Qxd5+ Nxd5 21. Rxa6 Rxa6 22. Nxa6 h6 23. Ne4 Bxe4 24. Rxe4 Ra8 25. Nc5 Ra1 26. Re1 e4 27. Nxe4 Nxb4 28. cxb4 Bxb2 29. Bd2 1-0
2024.04.16 Titled Tue 16th Apr Late
574084 Boder, Jan (2328) Koellner, Ruben Gideon (2441) 1-0
1. c4 d6 2. g3 e5 3. Bg2 g6 4. Nc3 Bg7 5. b4 Ne7 6. Bb2 O-O 7. d3 c6 8. Nf3 d5 9. O-O d4 10. Nb1 a5 11. b5 Nd7 12. a4 c5 13. e3 Rb8 14. exd4 exd4 15. Nbd2 b6 16. Re1 Bb7 17. Ne4 Nf6 18. Nfg5 Nxe4 19. Nxe4 Nf5 20. Bc1 Re8 21. Bf4 Be5 22. Qd2 Bxf4 23. Qxf4 Bxe4 24. Bxe4 Nd6 25. Bd5 Qd7 26. h4 Rbd8 27. Bc6 Rxe1+ 28. Rxe1 Qf5 29. Qxf5 Nxf5 30. h5 Kf8 31. Kg2 Rd6 32. Re8+ Kg7 33. g4 Nh4+ 34. Kg3 g5 35. Be4 Rf6 36. f3 h6 37. Rc8 Re6 38. Rc6 Kf6 39. Bd5 Rxc6 40. bxc6 Ke7 41. Bxf7 Kd6 42. Bd5 Kc7 43. Be4 Kd6 44. f4 Kc7 45. fxg5 hxg5 46. h6 Kd6 47. h7 b5 48. cxb5 Ng6 49. Bxg6 c4 50. dxc4 Kc5 51. h8=Q d3 52. Qc3 Kb6 53. Qxd3 Kc5 54. c7 Kb6 55. c8=Q Ka7 56. Qd4# 1-0
2024.04.09 Titled Tue 9th Apr Early
577506 Koellner, Ruben Gideon (2441) Postnikov, Artem (2176) 1-0
1. d4 Nf6 2. Nf3 c5 3. e3 d6 4. Nbd2 Nc6 5. c3 a6 6. Bd3 b5 7. O-O c4 8. Bc2 d5 9. e4 e6 10. e5 Nd7 11. Re1 g6 12. Nf1 Bg7 13. h4 O-O 14. N1h2 f5 15. exf6 Nxf6 16. Bg5 Qd6 17. Ne5 Nd7 18. f4 Ndxe5 19. fxe5 Qd7 20. Ng4 Bb7 21. Nf6+ Bxf6 22. Bxf6 Ne7 23. Qg4 Nf5 24. h5 Qf7 25. Qg5 Rac8 26. g4 Ng3 27. hxg6 hxg6 28. Bxg6 1-0
2024.04.09 Titled Tue 9th Apr Early
577929 Bogaudinov, R (1912) Koellner, Ruben Gideon (2441) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Bb5+ c6 5. Be2 Nbd7 6. Nf3 Be7 7. O-O h6 8. b3 Qc7 9. Bb2 O-O 10. Re1 a5 11. a4 Re8 12. Bf1 Nf8 13. h3 Ng6 14. Bc4 Bf8 15. Qd2 Bd7 16. Rad1 Rad8 17. d5 Nh5 18. dxc6 bxc6 19. Ne2 Nhf4 20. Nxf4 Nxf4 21. Bc3 Ra8 22. Bf1 Be6 23. Kh2 Ng6 24. g3 f6 25. Bg2 d5 26. h4 d4 27. Bb2 h5 28. Bh3 Bxh3 29. Kxh3 Qc8+ 30. Kh2 Qg4 31. Ng1 Red8 32. Qe2 Qxe2 33. Rxe2 Bb4 34. Rd3 Nf8 35. f4 Ne6 36. fxe5 fxe5 37. Nf3 Bd6 38. Rd1 Rf8 39. Kg2 Rf7 40. Ng5 Nxg5 41. hxg5 Raf8 42. Bc1 Bb4 43. Bd2 Bxd2 44. Rdxd2 Rf3 45. Rd3 Rf1 46. c3 c5 47. cxd4 cxd4 48. Rc2 Kh7 49. Rc5 R8f2+ 0-1
2024.04.09 Titled Tue 9th Apr Early
578131 Gurel, Ediz (2578) Koellner, Ruben Gideon (2441) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. dxe5 Nxe5 8. Nxe5 dxe5 9. Qe2 O-O 10. Be3 b5 11. Bd3 Be6 12. a4 a6 13. h3 Qc7 14. Rfd1 Nd7 15. Qf3 Bc5 16. Ne2 Qb6 17. Bxc5 Nxc5 18. axb5 axb5 19. Ng3 f6 20. h4 Rxa1 21. Rxa1 Rd8 22. Bf1 Na4 23. b3 Qd4 24. Re1 Nc5 25. Be2 Qb2 26. Qe3 Rd4 27. c3 Qd2 28. cxd4 Qxe1+ 29. Kh2 Nxb3 30. d5 Nd4 31. dxe6 Nxe6 32. Qb3 Kf7 33. Bg4 Qxf2 34. Qxe6+ Kf8 35. Qc8+ Ke7 36. Qd7+ Kf8 37. Be6 Qf4 38. Qd8# 1-0
2024.04.09 Titled Tue 9th Apr Early
578324 Koellner, Ruben Gideon (2441) Miller, Luke C (1930) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 a5 7. b5 c5 8. dxc5 Nbd7 9. Ba3 Qc7 10. b6 Qc6 11. Nd4 1-0
2024.04.09 Titled Tue 9th Apr Early
578792 Volkov, Maksim (2340) Koellner, Ruben Gideon (2441) 1-0
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. Nh4 Bd7 6. g3 Bg7 7. Bg2 c6 8. O-O O-O 9. e4 e5 10. Nf3 Re8 11. h3 a5 12. Be3 Na6 13. Re1 Qc7 14. Qd2 Rad8 15. Rad1 exd4 16. Nxd4 Nc5 17. Qc2 Bc8 18. f4 h5 19. Bf2 Ne6 20. Nf3 b6 21. e5 dxe5 22. Nxe5 Rxd1 23. Rxd1 Nd8 24. Qb3 c5 25. Nb5 Qb8 26. Rxd8 Rxd8 27. Nc6 Qb7 28. Nxd8 Qd7 29. Nc6 h4 30. Ne5 Qe6 31. g4 Ne8 32. Qe3 Nd6 33. Nxd6 Qxd6 34. Bd5 Be6 35. Nxg6 Bd4 36. Qe4 Bxd5 37. Ne7+ Kf8 38. Nxd5 Qe6 39. Qxe6 fxe6 40. Bxd4 exd5 41. Be5 dxc4 42. Bc7 b5 43. Bxa5 Ke7 44. f5 Kd6 45. f6 Ke6 46. g5 b4 47. Kf2 c3 48. bxc3 bxc3 49. Bxc3 Kf7 50. Kf3 Kg6 51. Kg4 c4 52. Kxh4 Kh7 53. f7 Kg6 54. f8=Q Kh7 55. Qg7# 1-0
2024.04.09 Titled Tue 9th Apr Early
579031 Koellner, Ruben Gideon (2441) Glidzhain, G (2186) 1-0
1. d4 c5 2. e3 Nf6 3. Nf3 e6 4. Nbd2 b6 5. b3 Bb7 6. Bb2 Be7 7. Bd3 O-O 8. O-O d5 9. Ne5 Nc6 10. f4 Ne4 11. Nxe4 Nxe5 12. Nf6+ Bxf6 13. fxe5 Bg5 14. Rf3 Rc8 15. c3 f5 16. exf6 Rxf6 17. Rh3 Rh6 18. Qg4 Qe7 19. Rf1 Rxh3 20. Qxh3 Bh6 21. Rf3 c4 22. Bc2 cxb3 23. axb3 Ba6 24. e4 Kh8 25. e5 Rf8 26. Qg3 Be3+ 27. Kh1 Be2 28. Rxf8+ Qxf8 29. Qxe3 Qf1+ 30. Qg1 Qf4 31. Bc1 Qg4 32. Qf2 Kg8 33. h3 Qh5 34. Qg3 Ba6 35. Qg4 Qe8 36. Qh4 h6 37. Qf2 Qh5 38. Qf3 Qe8 39. Qg3 Qh5 40. Qg4 Qf7 41. Kh2 Kf8 42. Qf3 Ke7 43. Qxf7+ Kxf7 44. Kg3 g5 45. Kf2 Kg7 46. g3 Bc8 47. h4 Bd7 48. hxg5 hxg5 49. Bxg5 Kf7 50. Bf6 a5 51. g4 b5 52. g5 a4 53. bxa4 bxa4 54. Bh7 Ke8 55. g6 1-0
2024.04.09 Titled Tue 9th Apr Early
579125 Iljin, T (2283) Koellner, Ruben Gideon (2441) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. f3 Bd6 9. Be3 Ke7 10. O-O-O a6 11. Nh3 Nbd7 12. Nf2 b5 13. h4 c5 14. Rd2 c4 15. g4 Bc5 16. Bxc5+ Nxc5 17. h5 h6 18. b4 cxb3 19. cxb3 Rac8 20. Kb2 Rhd8 21. Rhd1 Rxd2+ 22. Rxd2 Nh7 23. b4 Nd7 24. Nd3 Ng5 25. f4 exf4 26. Nxf4 Ne5 27. Rd1 Rc4 28. Ng6+ Nxg6 29. hxg6 Rxb4+ 30. Ka3 Rc4 31. Kb3 Nxe4 32. Ne2 Nc5+ 33. Kb2 Rxg4 34. Rf1 Rxg6 35. Kc3 Ne4+ 36. Kd3 Ng3 37. Nf4 Nxf1 38. Nxg6+ Kf6 39. Nf4 Ng3 40. Ke3 Nf5+ 41. Ke4 Nd6+ 42. Kd4 e5+ 43. Kd5 e4 0-1
2024.04.09 Titled Tue 9th Apr Early
579427 Koellner, Ruben Gideon (2441) Sarana, A (2703) 0-1
1. d4 Nf6 2. Bg5 d5 3. e3 c5 4. Bxf6 exf6 5. dxc5 Bxc5 6. Nc3 d4 7. exd4 Bxd4 8. Qe2+ Be6 9. O-O-O Nc6 10. Nf3 Qb6 11. Nxd4 Nxd4 12. Qe3 Rd8 13. Bb5+ Ke7 14. Bc4 Qc5 15. Bb3 Nxb3+ 16. axb3 Qxe3+ 17. fxe3 f5 18. Rxd8 Rxd8 19. Rd1 Rc8 20. Rd4 a6 21. Kd2 g5 22. g3 b5 23. b4 Rc6 24. Nd1 h5 25. h4 f6 26. Nf2 Bc4 27. Nh3 Bf1 28. Nf2 Re6 29. Nd1 Bg2 30. Nf2 Bf3 31. Nh3 f4 32. exf4 Re2+ 33. Kd3 g4 34. Ng1 Re1 0-1
2024.04.09 Titled Tue 9th Apr Early
579566 Koellner, Ruben Gideon (2441) Gokhale, Rishabh Chandrashekhar (2079) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. Nbd2 Nc6 5. c3 cxd4 6. exd4 Bg4 7. Bb5 e6 8. Qa4 Qc7 9. Ne5 Rc8 10. Qxa7 Bd6 11. Bxc6+ bxc6 12. Qxc7 Rxc7 13. Nxg4 Nxg4 14. h3 Nf6 15. Nb3 c5 16. dxc5 Bxc5 17. Nxc5 Rxc5 18. Be3 Rb5 19. b4 Ne4 20. Bd4 f6 21. f3 Nd6 22. a4 Rb7 23. Bc5 Kd7 24. Bxd6 Kxd6 25. Kd2 h5 26. Rhb1 Ra8 27. a5 Kc6 28. Kc2 Kb5 29. Kb3 Rc7 30. Re1 e5 31. Red1 d4 32. cxd4 Rac8 33. dxe5 Rc3+ 34. Kb2 Rc2+ 35. Kb1 fxe5 36. a6 R2c4 37. Ra5+ Kxb4 38. Ra2 Ra8 39. Re1 Rc5 40. Rb2+ Ka5 41. Re3 Kxa6 42. Ra3+ Ra5 43. Rxa5+ Kxa5 44. Ra2+ 1-0
2024.04.09 Titled Tue 9th Apr Early
579881 Sielecki, C (2403) Koellner, Ruben Gideon (2441) 0-1
1. d4 d6 2. g3 Nf6 3. Nf3 Nbd7 4. Bg2 e5 5. Nc3 Be7 6. O-O O-O 7. dxe5 Nxe5 8. Nxe5 dxe5 9. h3 c6 10. Qxd8 Rxd8 11. Be3 Bf5 12. Rfc1 Bb4 13. g4 Bg6 14. g5 Bxc3 15. bxc3 Nd5 16. Bxd5 cxd5 17. f4 Rdc8 18. fxe5 Rxc3 19. Kf2 Bxc2 20. Bd4 Rc4 21. e3 b6 22. Ke2 Rac8 23. Kd2 Bf5 24. Rxc4 Rxc4 25. a4 Rc2+ 26. Ke1 Rh2 27. Ra3 Rxh3 28. a5 h6 29. axb6 axb6 30. gxh6 Rxh6 31. Rb3 Rh1+ 32. Kf2 Kh7 33. Rxb6 Be6 34. Kg2 Rh5 35. Rb2 Kg6 36. Rf2 Rg5+ 37. Kh2 Rh5+ 38. Kg2 Bf5 39. Kg3 Rh3+ 40. Kf4 Rh4+ 41. Kg3 Rg4+ 42. Kf3 Kg5 43. Ke2 Kg6 44. Kf3 Rg5 45. Ke2 Bg4+ 46. Kd2 Be6 47. Ke2 Rh5 48. Kf3 Kf5 49. Ke2+ Kg5 50. Rg2+ Bg4+ 51. Kd3 Kf5 52. Rf2+ Ke6 53. Rg2 Bf5+ 54. Ke2 g5 55. Kf3 Be4+ 56. Kg4 Bxg2 57. Kxh5 Kf5 0-1
2024.04.09 Titled Tue 9th Apr Early
579918 Maksimovic, Bojan (2485) Koellner, Ruben Gideon (2441) 0-1
1. g3 d5 2. Bg2 c6 3. Nf3 Nd7 4. c4 dxc4 5. Na3 Nb6 6. Qc2 Be6 7. Ng5 Qd7 8. O-O Nf6 9. Nxe6 Qxe6 10. b3 cxb3 11. axb3 g6 12. Bb2 Bg7 13. d4 O-O 14. Nc4 Nfd5 15. Na5 Qd7 16. Rfd1 Rfd8 17. e4 Nf6 18. b4 a6 19. Nb3 Qc8 20. Nc5 Nbd7 21. e5 Nd5 22. e6 Nxc5 23. exf7+ Kxf7 24. dxc5 Bxb2 25. Qxb2 Qf5 26. Re1 Qf6 27. Qb3 Kg7 28. Re2 Qxa1+ 0-1
2024.04.01 GRENKE Chess Open 2024
589257 Koellner, Ruben Gideon (2453) Janeczko, Jakub (2278) 1/2-1/2
1. d4 Nf6 2. Bg5 d5 3. e3 c5 4. Bxf6 gxf6 5. dxc5 e6 6. c4 dxc4 7. Nd2 c3 8. bxc3 Nd7 9. c6 bxc6 10. Ngf3 Bg7 11. Qa4 Qc7 12. Nd4 Bb7 13. Rb1 O-O 14. Be2 f5 15. O-O Nb6 16. Qa5 Rfd8 17. N2b3 Rd5 18. Qa3 Bf8 19. Qc1 c5 20. Nb5 Qe7 21. Na5 e5 22. Nxb7 Qxb7 23. e4 fxe4 24. c4 Rdd8 25. Qg5+ Bg7 26. Rfd1 Rxd1+ 27. Rxd1 Re8 28. Nd6 Qe7 29. Qg4 Rd8 30. Nf5 Rxd1+ 31. Bxd1 Qf6 32. Qxe4 Nxc4 33. Qxc4 Qxf5 34. Qxc5 Qb1 35. Qc8+ Bf8 36. Qg4+ Qg6 37. Qe2 Qg5 38. g3 Bc5 39. Bb3 Bd4 40. Qf3 Qg6 41. Bd5 Kg7 42. Be4 Qf6 43. Bf5 Qg5 44. Kg2 Qd2 45. Be4 Qg5 46. h4 Qf6 47. Bf5 h6 48. Qg4+ Kf8 49. Qf3 1/2-1/2
2024.04.01 GRENKE Chess Open 2024
589307 Knuedel, Torben (2299) Koellner, Ruben Gideon (2453) 0-1
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 b5 7. Bb3 d6 8. d4 Bb6 9. a4 Bg4 10. axb5 axb5 11. Rxa8 Qxa8 12. d5 Ne7 13. Qd3 O-O 14. Bg5 Ng6 15. h3 Bd7 16. Na3 Nh5 17. Ra1 Ngf4 18. Bxf4 Nxf4 19. Qf1 Qd8 20. Nc2 Qf6 21. Nce1 Qg6 22. Kh2 Qxe4 23. Rd1 Qg6 24. Bc2 Qh6 25. Ng1 f5 26. Bd3 Nxd3 27. Nxd3 e4 28. Nb4 Qf4+ 29. Kh1 Qxf2 30. Qxf2 Bxf2 31. Rf1 Bb6 32. Ne2 g5 33. g3 f4 34. g4 h5 35. Nd4 hxg4 36. hxg4 Bxd4 0-1
2024.03.31 GRENKE Chess Open 2024
589150 Koellner, Ruben Gideon (2453) Tokhirjonova, Gulrukhbegim (2365) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Ne5 Nbd7 5. g4 Be6 6. h3 h5 7. Rg1 hxg4 8. hxg4 g5 9. Nd2 Bg7 10. Bd3 Nxe5 11. dxe5 Ne4 12. f4 gxf4 13. exf4 c6 14. Bxe4 dxe4 15. Nxe4 Qb6 16. Nf2 f6 17. Qd3 Rd8 18. Qc3 fxe5 19. f5 Bf7 20. Be3 e4 21. Bxb6 Bxc3+ 22. bxc3 axb6 23. Nxe4 Rh3 24. Ng3 Rh2 25. Rh1 Rdd2 26. Rxh2 Rxh2 27. O-O-O Rh4 28. Rd4 c5 29. Rf4 Kd7 30. Ne4 Bxa2 31. Nf2 Bd5 32. Kd2 b5 33. Ke3 e5 34. fxe6+ Kxe6 35. g5 Rxf4 36. Kxf4 b6 37. Nd3 Bc4 38. Ne5 Ba2 39. g6 Kf6 40. Nd7+ Kxg6 41. Nxb6 Bb1 42. Nd7 b4 43. Nxc5 bxc3 44. Ne4 Bxc2 45. Nxc3 1/2-1/2
2024.03.31 GRENKE Chess Open 2024
589208 Dobrikov, Marco (2362) Koellner, Ruben Gideon (2453) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O Nb6 7. Be2 exd4 8. Nxd4 O-O 9. a4 a5 10. f4 Ne8 11. Nd5 Nxd5 12. exd5 Nf6 13. Bf3 Nd7 14. b3 Bf6 15. Bb2 Nc5 16. Qd2 Bd7 17. Rae1 Re8 18. Rxe8+ Qxe8 19. Re1 Qf8 20. h3 b6 21. Bg4 Bxg4 22. hxg4 h6 23. Qe3 g6 24. Bc3 Qg7 25. Nb5 Bxc3 26. Nxc3 Rc8 27. Nb5 Qf6 28. g3 Na6 29. Kg2 Nb4 30. Qe4 Kg7 31. Qc4 c6 32. Na7 Rc7 33. Nxc6 Nxc6 34. dxc6 d5 35. Qxd5 Rxc6 36. Re2 Rc5 37. Qe4 Qc3 38. Kf2 Rc6 39. Qe3 Qxe3+ 40. Kxe3 Rc3+ 41. Kd4 Rxg3 42. Kc4 Rxg4 43. Kb5 Rxf4 44. Kxb6 f5 45. Kxa5 Re4 46. Rf2 f4 47. b4 g5 48. b5 g4 49. b6 g3 50. Rg2 h5 51. b7 Re8 52. c4 h4 53. c5 f3 54. Rxg3+ hxg3 55. c6 g2 56. c7 g1=Q 57. c8=Q Qe1+ 58. Kb6 Qe6+ 0-1
2024.03.30 GRENKE Chess Open 2024
589050 Koellner, Ruben Gideon (2453) Hecht, C (2295) 1-0
1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Nc6 5. Nbd2 Qb6 6. dxc5 Qxb2 7. Rb1 Qc3 8. Bb5 g6 9. e4 dxe4 10. Be5 Qxc5 11. Bxf6 exf6 12. Nxe4 Qe7 13. O-O Bd7 14. Bxc6 Bxc6 15. Re1 Bxe4 16. Qd4 f5 17. Qxh8 O-O-O 18. Qc3+ Qc7 19. Qxc7+ Kxc7 20. Ng5 Bd5 21. c4 h6 22. cxd5 hxg5 23. Rec1+ Kb8 24. Rd1 Bc5 25. Rb3 Kc7 26. Kf1 b6 27. h3 Rh8 28. d6+ Kd7 29. Rbd3 Re8 30. Re1 Rxe1+ 31. Kxe1 g4 32. hxg4 fxg4 33. Ke2 Bxd6 34. Rd4 f5 35. Rd1 Ke6 36. Rh1 Bc5 37. Rh7 a5 38. Rg7 Kf6 39. Ra7 Ke6 40. Ra8 Kf6 41. a4 Ke6 42. Rd8 Ke5 43. Rg8 Kf6 44. Re8 Kf7 45. Rd8 Ke6 46. Rd2 Ke5 47. Kd3 Kf4 48. Rc2 Ke5 49. Kc4 Ke4 50. Re2+ Kf4 51. Kd5 g3 52. f3 Be3 53. Rc2 Bc5 54. Rc3 g5 55. Ke6 g4 56. fxg4 Kxg4 57. Ke5 f4 58. Ke4 Be3 59. Rc8 Kg5 60. Rf8 Kg6 61. Rf5 Kg7 62. Ke5 Kg6 63. Rf6+ Kg7 64. Kf5 Bd4 65. Re6 Be3 66. Re7+ Kf8 67. Ke6 Kg8 68. Rf7 Bd2 69. Kf6 Bc3+ 70. Kg6 Be5 71. Rf5 Bd6 72. Rf6 Be5 73. Re6 Bg7 74. Rxb6 f3 75. gxf3 g2 76. Rb1 1-0
2024.03.30 GRENKE Chess Open 2024
589088 Frank, Adam (2284) Koellner, Ruben Gideon (2453) 1/2-1/2
1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. O-O a6 6. Ba4 b5 7. Bb3 d6 8. a4 b4 9. a5 O-O 10. d4 Ba7 11. h3 Rb8 12. Be3 exd4 13. cxd4 Ne7 14. Nbd2 Bb7 15. Qc2 d5 16. e5 Ne4 17. Rfc1 Rc8 18. Nxe4 dxe4 19. Ng5 Nf5 20. Nxe4 Nxd4 21. Bxd4 Qxd4 22. Nc5 Bd5 23. Bxd5 Qxd5 24. Nxa6 b3 25. Qf5 c5 26. Rd1 Qc4 27. Qd3 Qe6 28. Qb5 Qxe5 29. Qxb3 c4 30. Qc3 Qb5 31. Nb4 Rb8 32. Nd5 1/2-1/2
2024.03.29 GRENKE Chess Open 2024
588948 Koellner, Ruben Gideon (2453) Khrapko, Marharyta (2218) 1-0
1. d4 d6 2. Nf3 Nf6 3. Nbd2 g6 4. e4 Bg7 5. Bc4 O-O 6. Qe2 c5 7. dxc5 dxc5 8. O-O Nc6 9. c3 Qc7 10. Re1 Ng4 11. Bb3 a6 12. a4 Rb8 13. h3 Nge5 14. Nxe5 Bxe5 15. Nf3 Bg7 16. e5 Nd8 17. Bf4 Be6 18. Bc2 b5 19. axb5 axb5 20. Qe3 b4 21. Ng5 bxc3 22. bxc3 Rb2 23. Qc1 Qb6 24. Nxe6 Nxe6 25. Bg3 c4 26. Rb1 Rxb1 27. Qxb1 Qa5 28. Qa1 Ra8 29. Qb2 Nc5 30. Rd1 Na4 31. Bxa4 Qxa4 32. Rd4 Qb3 33. Qd2 h6 34. Kh2 Kh7 35. Rd7 Re8 36. Rc7 Qb5 37. Qf4 Kg8 38. Qxc4 Qxc4 39. Rxc4 g5 40. Rc6 h5 41. h4 gxh4 42. Bf4 Rd8 43. Kh3 Rd5 44. c4 Rd4 45. Bg5 e6 46. f4 Kh7 47. Rc5 Kg6 48. Kxh4 f6 49. exf6 Bxf6 50. Kh3 Rd3+ 51. g3 Bd4 52. Rc8 e5 53. Rc6+ Kf5 54. Rf6+ Ke4 55. Kh4 Bf2 56. Kxh5 Bxg3 57. fxe5 Bxe5 58. Rf8 Rc3 59. Rc8 Kf5 60. Rf8+ Ke4 61. Rc8 Kf5 62. Bh4 Rh3 63. Rf8+ Ke4 64. Kg4 Rc3 65. Rc8 Kd4 66. Bf2+ Kd3 67. c5 Rc4+ 68. Kh3 Ke4 69. Re8 Kd5 70. Rd8+ Kc6 71. Kg2 Bc3 72. Rd6+ Kb7 73. Rb6+ Kc7 74. Bg3+ Kd7 75. Rd6+ Kc8 76. c6 Re4 77. Rg6 Re8 78. Rg5 Bd2 79. Rb5 Kd8 80. Rd5+ Kc8 81. Rxd2 Re5 82. Rb2 1-0
2024.03.29 GRENKE Chess Open 2024
588992 Kuberczyk, C (2290) Koellner, Ruben Gideon (2453) 1/2-1/2
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. a4 Be7 6. Bc4 O-O 7. O-O exd4 8. Nxd4 Re8 9. Re1 Ne5 10. Ba2 Bg4 11. f3 Bd7 12. Be3 a6 13. Qd2 c5 14. Nf5 Bxf5 15. exf5 Qd7 16. Nd5 Rad8 17. Bf4 Nxd5 18. Qxd5 Bf6 19. Re4 b5 20. Rae1 c4 21. Kh1 Qxf5 22. axb5 axb5 23. Qxb5 d5 24. g4 Qd7 25. Qxd7 Rxd7 26. R4e3 Ra8 27. Bxc4 dxc4 28. Bxe5 Bxe5 29. Rxe5 g6 30. Re8+ Rxe8 31. Rxe8+ Kg7 32. Re2 f5 33. Kg2 Kf6 34. h4 h6 35. Kg3 Rd1 36. Kf4 g5+ 37. hxg5+ hxg5+ 38. Ke3 fxg4 39. fxg4 Rg1 40. Kf3 Rf1+ 41. Kg2 Rb1 42. c3 Rd1 43. Kf2 Rb1 44. Ke3 Rg1 45. Kf3 Rf1+ 46. Kg2 Rd1 47. Re4 Rd2+ 48. Kf3 Rxb2 49. Rxc4 Ke6 50. Rd4 Rc2 51. c4 Rc3+ 52. Ke4 Rg3 53. Rd5 Rxg4+ 54. Kf3 Rf4+ 55. Kg3 Rxc4 56. Rxg5 1/2-1/2
2024.03.28 GRENKE Chess Open 2024
588899 Mende, A (2101) Koellner, Ruben Gideon (2453) 0-1
1. c4 e6 2. g3 d5 3. Nf3 Nf6 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 c5 7. Ne5 Qc8 8. Nxd7 Qxd7 9. O-O Nc6 10. d3 Be7 11. Qa4 Rc8 12. Nc3 O-O 13. Rd1 Rfd8 14. Bf4 b6 15. Rac1 h6 16. h4 Bf8 17. Kf1 Nd5 18. Bd2 Be7 19. a3 a5 20. Nxd5 exd5 21. Bc3 Qe6 22. d4 cxd4 23. Bd2 Bf6 24. Qb5 Ne7 25. b4 axb4 26. Bxb4 Rc4 27. Bxe7 Bxe7 28. Rb1 Bc5 29. a4 Ra8 30. Ra1 Rb4 31. Qd3 Rbxa4 32. Rxa4 Rxa4 33. Rb1 Ra3 34. Rb3 Ra2 35. Bf3 g5 36. hxg5 hxg5 37. Qb1 Ra7 38. g4 Kg7 39. Rd3 Qe5 40. Qb3 Qh2 41. Bxd5 Ra1+ 42. Rd1 Ra3 43. Qb2 Qh3+ 44. Bg2 Qxg4 45. Rc1 Qf5 46. Ra1 Rc3 47. Rd1 g4 48. e4 Qf4 49. Qd2 Qxd2 50. Rxd2 d3 0-1
2024.03.26 Titled Tue 26th Mar Early
592082 Koellner, Ruben Gideon (2453) Bogaudinov, R (1912) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 c5 5. c3 Nc6 6. Bd3 Be7 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 a6 11. a3 Re8 12. c4 dxc4 13. Nxc4 Be7 14. Qe2 b5 15. Nce5 Nxe5 16. Nxe5 Bb7 17. Rfd1 Qb8 18. Rac1 Rd8 19. h3 h6 20. Nc6 Bxc6 21. Rxc6 a5 22. Rdc1 axb4 23. axb4 Ra2 24. Bb1 Ra4 25. Qc2 g6 26. Rc7 Nd5 27. Rxe7 Nxe7 28. Bf6 Rc8 29. Qb2 Rxc1+ 30. Qxc1 Nd5 31. Bd4 Rxb4 32. Be4 Rc4 33. Qb1 Qc7 34. Bb2 Nc3 35. Qa1 Nxe4 36. Qa8+ Qc8 37. Qa7 b4 38. h4 h5 39. Qb6 Nc3 40. Qd6 Kg7 41. Qe5+ Kg8 42. Qf6 Qc7 43. g3 Qc6 44. Qd8+ Kg7 45. Kh2 b3 46. Qa5 Qf3 47. Qe5+ Qf6 0-1
2024.03.26 Titled Tue 26th Mar Late
594452 Mazurkiewicz, M (2145) Koellner, Ruben Gideon (2453) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. Nh3 Bd6 9. f3 Ke7 10. Nf2 a6 11. a4 Nbd7 12. Nd3 h6 13. Be3 g5 14. h3 b6 15. O-O Rag8 16. g4 Nf8 17. a5 b5 18. Nc5 h5 19. Nxa6 hxg4 20. hxg4 Ng6 21. Bxg5 Ra8 22. Nxb5 Rxa6 23. Nxd6 cxd6 24. b4 Rb8 25. Rfb1 Rba8 26. Bd2 d5 27. b5 R6a7 28. a6 Nd7 29. Bb4+ Kd8 30. Bd6 Ne7 31. b6 Rxa6 32. Rxa6 Rxa6 33. b7 Rxd6 34. b8=Q+ Nxb8 35. Rxb8+ Kc7 36. Rh8 Rc6 37. Rh6 Kd7 38. exd5 exd5 39. Rxc6 Nxc6 40. c3 Na7 41. Kf2 Nb5 42. f4 e4 43. Ke3 Nxc3 44. Kd4 Nb5+ 45. Ke3 Ke6 46. g5 Kf5 47. Kd2 d4 48. Ke2 Nd6 49. Kd2 Ne8 50. Kc2 Ng7 51. Kb3 Kxf4 0-1
2024.03.26 Titled Tue 26th Mar Late
594715 Koellner, Ruben Gideon (2453) Asish Panda (1884) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 Bd6 5. Bd3 O-O 6. O-O c5 7. c3 Nc6 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 e5 11. e4 Ne7 12. Re1 Ng6 13. exd5 Nxd5 14. Nc4 Bc7 15. Bxg6 fxg6 16. Ncxe5 Nf4 17. Qxd8 Rxd8 18. Rad1 Bf5 19. c4 a5 20. b5 Bb6 21. Ba3 Rac8 22. Rxd8+ Rxd8 23. c5 Bc7 24. g3 Nd3 25. Nxd3 Rxd3 26. Re3 Rd1+ 27. Kg2 h6 28. Bb2 Bd8 29. Nd4 Kf7 30. Nxf5 gxf5 31. Be5 Rd5 32. c6 bxc6 33. bxc6 Rc5 34. Rd3 Rxe5 35. Rxd8 Rc5 36. Rd7+ Kf6 37. c7 g5 38. Rh7 Kg6 39. Rd7 h5 40. h4 g4 41. Kf1 Rc2 42. a3 Kf6 43. Rh7 Kg6 44. Rd7 Kf6 45. Ke1 Ke6 46. Rh7 Kd6 47. Rxh5 Rxc7 48. Rxf5 a4 49. Rf4 Rc1+ 50. Ke2 Rc2+ 51. Kf1 Ra2 52. Rxa4 Ke5 53. Rxg4 Kf5 54. Rf4+ Kg6 55. Kg2 Rxa3 56. g4 Ra5 57. Kg3 Ra3+ 58. f3 Ra1 59. h5+ Kh6 60. Rf5 Rg1+ 61. Kf4 Ra1 62. Rf6+ Kg7 63. g5 Ra4+ 64. Kg3 Ra3 65. Kg4 Ra4+ 66. f4 Rb4 67. h6+ Kh7 68. Rf7+ Kg8 69. Rg7+ Kh8 70. Rc7 Rb5 71. g6 Rb8 72. Kg5 Rg8 73. f5 Ra8 74. Rh7+ Kg8 75. Rg7+ Kh8 76. Rc7 Rd8 77. h7 Ra8 78. Kh6 1-0
2024.03.26 Titled Tue 26th Mar Late
594893 Koellner, Ruben Gideon (2453) Bortnyk, Olexandr (2608) 0-1
1. d4 Nf6 2. Nf3 b6 3. Nbd2 Bb7 4. e3 g6 5. Bd3 d5 6. Ne5 Bg7 7. O-O c5 8. c3 O-O 9. f4 Nbd7 10. Qf3 Ne8 11. Qh3 e6 12. g4 Nd6 13. g5 cxd4 14. exd4 Rc8 15. Qg2 b5 16. a3 a5 17. h4 b4 18. cxb4 axb4 19. a4 Qb6 20. Qf2 Rfd8 21. a5 Qa7 22. a6 Ba8 23. h5 Ne4 24. Nxe4 dxe4 25. Bb5 Nb6 26. Be3 Nd5 27. Rfd1 b3 28. hxg6 hxg6 29. Rd2 Nxe3 30. Qxe3 Rc2 31. Rad1 Qb6 32. Bf1 Bd5 33. Qf2 Rdc8 34. Qe3 Rxd2 35. Rxd2 Rc1 36. Kf2 Rc2 37. Be2 Bf8 38. Bd1 Rxd2+ 39. Qxd2 Qxa6 40. Be2 Qa1 41. Ng4 Bg7 42. Bd1 Qa7 43. Ne5 Bf8 44. Qc3 Qb6 45. Ng4 Bg7 46. Nf6+ Bxf6 47. gxf6 Qb8 48. Qg3 Qb6 49. Ke3 Qd8 50. Qh4 Qf8 51. Qg5 Qb4 52. Be2 Qf8 53. Qh4 Qc8 54. Qh6 Qf8 55. Qg5 Bb7 56. Bg4 Bd5 57. Bh3 Qb4 58. Qh6 Qe1# 0-1
2024.03.26 Titled Tue 26th Mar Late
595127 Bulmaga, I (2429) Koellner, Ruben Gideon (2453) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. Re1 h6 8. a4 Qc7 9. a5 Nf8 10. dxe5 dxe5 11. b3 Ng6 12. Bb2 O-O 13. h3 Rb8 14. Qc1 b5 15. axb6 axb6 16. Nd1 b5 17. Bf1 Be6 18. Nd2 Rfd8 19. Ne3 Bc5 20. Kh1 Ra8 21. Rxa8 Rxa8 22. Kg1 Qa7 23. Bd3 Nf4 24. Bf1 Nd7 25. Kh2 Qb6 26. g3 Ng6 27. Bg2 Ndf8 28. Nf3 f6 29. Bf1 Rd8 30. c3 Bxb3 31. c4 bxc4 32. Bxc4+ Bxc4 33. Qxc4+ Kh7 34. Bc3 Qb5 35. Qf7 Rd7 36. Qa2 Rd3 37. Rb1 Rxc3 38. Rxb5 cxb5 39. Qd2 b4 40. Kg2 Bxe3 41. fxe3 Ne6 42. Qb2 Rxe3 43. Qxb4 Ng5 44. Nxg5+ hxg5 45. Kf2 Rd3 46. Qc4 Rd4 47. Qc6 Nf8 48. Kf3 Kg8 49. Qb7 Rd7 50. Qb3+ Kh7 51. Qb5 Rd4 52. Qc6 Kg8 53. Qb7 Nd7 54. Qc8+ Kf7 55. Qb7 Kg6 56. Qc6 Kf7 57. Qb7 Ke7 58. Qc6 g6 59. g4 Nf8 60. Qc7+ Rd7 61. Qc5+ Kf7 62. Qc4+ Kg7 63. Qc6 Re7 64. Qd6 Kf7 65. Qd5+ Ne6 66. Qc4 Rc7 67. Qd5 Ke7 68. Qa2 Rc3+ 69. Kf2 Rc7 70. Qa3+ Kf7 71. Qa2 Rd7 72. Qb3 Re7 73. Qa2 Kg7 74. Qd5 Nf4 75. Qb3 Rd7 76. Qb5 Rf7 77. Kg3 Rc7 78. Qb6 Rc3+ 79. Kf2 Nxh3+ 80. Kf1 Nf4 81. Qb7+ Kf8 82. Qb8+ Kf7 83. Qb7+ Kg8 84. Qb8+ Kh7 85. Qd6 Rg3 86. Qe7+ Kh6 87. Qf8+ Kh7 88. Qf7+ Kh6 89. Qf8+ Kh7 90. Qf7+ Kh8 91. Qf8+ Kh7 1/2-1/2
2024.03.26 Titled Tue 26th Mar Late
595270 Koellner, Ruben Gideon (2453) Tikhonov, Viacheslav (2160) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 a5 6. b5 c5 7. bxc6 Nxc6 8. a4 Bf5 9. c3 O-O 10. Ba3 Rc8 11. Qb3 Ne4 12. Nxe4 Bxe4 13. Be2 Qc7 14. O-O Rfd8 15. Rfc1 h6 16. Bc5 Qd7 17. Nd2 Bf5 18. Bf3 e6 19. c4 g5 20. cxd5 exd5 21. h3 Bf8 22. Bb6 Bb4 23. Nf1 Be6 24. Bxd8 Rxd8 25. Ng3 f5 26. Qd3 Rf8 27. Ne2 Qf7 28. g3 Qd7 29. Rc2 Kg7 30. Rac1 Rd8 31. Qb5 Rc8 32. Nc3 Rd8 33. Na2 Ba3 34. Rb1 Nb4 35. Qxd7+ Bxd7 36. Nxb4 Bxb4 37. Rc7 Kf6 38. Rxb7 Bxa4 39. Rb6+ Kg7 40. Rc1 Rd7 41. Rb8 Kh7 42. Rcc8 Kg7 43. Rg8+ Kf6 44. Rh8 Rg7 45. Rxh6+ Rg6 46. Rb6+ Ke7 47. Rhxg6 Bb3 48. Rg7+ Kf8 49. Ra7 Ba4 50. Rb8+ Be8 51. Bh5 Be7 52. Rxe8+ Kg7 53. Raxe7+ Kh6 54. Rh8# 1-0
2024.03.26 Titled Tue 26th Mar Late
595437 Terry, R (2522) Koellner, Ruben Gideon (2453) 1-0
1. Nf3 Nf6 2. g3 d5 3. Bg2 Nbd7 4. O-O e5 5. d3 c6 6. Nbd2 Bd6 7. e4 O-O 8. Qe2 Re8 9. a3 a5 10. b3 h6 11. Bb2 b5 12. Nh4 Nf8 13. exd5 cxd5 14. c4 bxc4 15. bxc4 Rb8 16. Rab1 d4 17. Ne4 Nxe4 18. Bxe4 Bh3 19. Rfe1 Ne6 20. Qh5 Qg5 21. Qf3 Qd2 22. Re2 Qg5 23. Ree1 Rb3 24. Qe2 Reb8 25. Bc1 Nf4 26. Bxf4 exf4 27. Rxb3 Rxb3 28. Nf3 Qc5 29. Bd5 Bd7 30. Qe4 Rxa3 31. Nxd4 Ra2 32. gxf4 a4 33. Re3 a3 34. Nf5 Bxf5 35. Qxf5 Ra1+ 36. Kg2 Qc7 37. Re8+ Bf8 38. Qe5 Qxe5 39. fxe5 Re1 40. c5 Rc1 41. c6 Rc5 42. Ra8 1-0
2024.03.26 Titled Tue 26th Mar Late
595683 Koellner, Ruben Gideon (2453) Karas, Marek (2212) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 a5 7. b5 Bg4 8. Be2 Bxf3 9. Bxf3 c6 10. a4 e6 11. O-O Nbd7 12. Ba3 Re8 13. cxd5 cxd5 14. Rc1 Bf8 15. Qb3 Bxa3 16. Qxa3 Qe7 17. Qxe7 Rxe7 18. Rc7 Ra7 19. Rfc1 Ne8 20. Rc8 Nb6 21. Rb8 Kg7 22. Bd1 Nd6 23. Bb3 Ra8 24. Rxa8 Nxa8 25. f3 Rc7 26. Rxc7 Nxc7 27. Kf2 f5 28. Ke2 b6 29. Kd3 Kf6 30. e4 fxe4+ 31. fxe4 dxe4+ 32. Nxe4+ Nxe4 33. Kxe4 Ne8 34. h4 Nd6+ 35. Kf4 h6 36. Bc2 g5+ 37. hxg5+ hxg5+ 38. Kf3 e5 39. d5 Nc8 40. Bb1 Nd6 41. Bd3 Nc8 42. Kg4 Nd6 43. Bb1 e4 44. Bc2 Kg6 45. Bb1 Kf6 46. Bc2 Kg6 47. g3 Kf6 48. Kh5 Kf5 49. Bb1 Kf6 50. Bc2 Kf5 51. Bd1 e3 52. Bg4+ Kf6 53. Be2 Ne4 54. Kg4 Nc3 55. Kf3 Nxd5 56. Bc4 Nc3 57. Bb3 e2 58. Kf2 Ke5 59. Bc4 Kd4 60. Bxe2 Nxe2 61. Kxe2 Kc3 62. Kf3 Kb4 63. Kg4 Kxa4 64. Kxg5 Kxb5 65. Kf4 a4 66. g4 a3 67. g5 a2 68. g6 a1=Q 69. Kf5 Qg7 70. Ke6 Kc4 71. Kd6 b5 72. Kc6 b4 73. Kd6 Qxg6+ 74. Kc7 Kc5 75. Kc8 Kc6 76. Kb8 Qf7 77. Ka8 Qb7# 0-1
2024.03.19 Titled Tue 19th Mar Early
599604 Jovic, Sta (2097) Koellner, Ruben Gideon (2453) 1/2-1/2
1. c4 d6 2. g3 e5 3. Bg2 g6 4. Nc3 Bg7 5. Nf3 Ne7 6. O-O c5 7. Ne1 Nbc6 8. Nc2 O-O 9. Ne3 a6 10. Ned5 Nxd5 11. Nxd5 Be6 12. d3 Rb8 13. a4 Ne7 14. Bg5 f6 15. Nxe7+ Qxe7 16. Bd2 Rfd8 17. e4 b5 18. axb5 axb5 19. b3 Ra8 20. Qc2 b4 21. Qb2 h5 22. Rxa8 Rxa8 23. Ra1 Qb7 24. h4 Ra6 25. Kh2 Qa7 26. Rxa6 Qxa6 27. Bh3 f5 28. Bc1 Kf7 29. Qe2 Qc8 30. exf5 Bxf5 31. Bxf5 Qxf5 32. Kg2 Qe6 33. Qf3+ Bf6 34. Qb7+ Qe7 35. Qxe7+ Bxe7 36. Kf3 Ke6 37. Ke4 Bf6 38. Bd2 Bd8 39. Bc1 Be7 40. Bd2 Bf6 41. Bc1 Be7 42. Bd2 Bd8 43. Bc1 Be7 1/2-1/2
2024.03.19 Titled Tue 19th Mar Early
599984 Koellner, Ruben Gideon (2453) Ozen, Metehan (2160) 1-0
1. d4 Nf6 2. Nf3 c5 3. e3 g6 4. Nbd2 Bg7 5. dxc5 O-O 6. Be2 Qc7 7. a3 a5 8. O-O Qxc5 9. b4 Qc7 10. Bb2 b6 11. c4 Bb7 12. Qb3 axb4 13. axb4 Nc6 14. Bc3 d6 15. Qb2 Nh5 16. Bxg7 Nxg7 17. Nb3 Nf5 18. h3 Nxb4 19. Nbd4 Nxd4 20. Nxd4 Nc6 21. Rxa8 Rxa8 22. Rb1 Nxd4 23. exd4 Be4 24. Qxb6 Qxb6 25. Rxb6 Ra2 26. Bf1 Ra1 27. Rb3 Rd1 28. f3 Bf5 29. g4 Bc2 30. Rc3 Bb1 31. c5 dxc5 32. dxc5 Rd7 33. Bc4 g5 34. Kf2 Bg6 35. Ke3 Kf8 36. Rb3 e6 37. Rb8+ Ke7 38. Bb5 Rc7 39. Re8+ Kf6 40. c6 Ke5 41. Rd8 f5 42. Rd7 f4+ 43. Kd2 Rc8 44. Rg7 Kf6 45. Rb7 Be8 46. Rb6 Ke5 47. Kc3 Kd6 48. Kb4 1-0
2024.03.19 Titled Tue 19th Mar Early
600286 Skliarov, V (2349) Koellner, Ruben Gideon (2453) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nge2 Nbd7 5. f3 Be7 6. Be3 c6 7. g4 h6 8. Qd2 b5 9. Ng3 Nb6 10. a4 Nc4 11. Bxc4 bxc4 12. dxe5 dxe5 13. Qxd8+ Kxd8 14. O-O-O+ Kc7 15. Nf5 Bf8 16. Bf2 g6 17. Bg3 Nd7 18. Ne3 Ba6 19. Rxd7+ Kxd7 20. Bxe5 Bc5 21. Ng2 Rhe8 22. Bf4 g5 23. Be3 Bd6 24. h4 f6 25. Rd1 Kc7 26. Bd4 Rf8 27. h5 Bc8 28. Ne3 Be6 29. Nf5 Bxf5 30. exf5 Rad8 31. Ne4 Bf4+ 32. Kb1 Rd5 33. c3 Be5 34. Bxe5+ fxe5 35. Kc2 Rxd1 36. Kxd1 Rd8+ 37. Ke2 Rb8 38. Nd2 Rxb2 39. Kd1 Ra2 40. Nxc4 Rxa4 41. Nxe5 Ra2 42. f6 Kd6 43. f7 Ke7 44. Ke1 c5 45. Kd1 a5 46. Kc1 a4 47. Kb1 Re2 48. Nd3 Kxf7 49. Nxc5 a3 50. Ka1 Rf2 51. Nd3 Rf1+ 52. Ka2 Ke6 53. c4 Rxf3 54. Nc5+ Kd6 55. Ne4+ Ke5 56. Nc5 Kd4 57. Ne6+ Kxc4 58. Ng7 Kb4 59. Nf5 Rf2+ 60. Ka1 Kc3 61. Nxh6 Kb3 62. Nf5 Rf1# 0-1
2024.03.19 Titled Tue 19th Mar Early
600512 Koellner, Ruben Gideon (2453) Sjugirov, S (2690) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 a5 7. b5 c6 8. a4 Bf5 9. Ba3 Re8 10. Be2 cxb5 11. axb5 dxc4 12. Bxc4 Nbd7 13. Qb3 e6 14. O-O Nb6 15. Be2 Ne4 16. Rfc1 Nxd2 17. Nxd2 e5 18. Nc4 Be6 19. dxe5 Bxe5 20. Bb2 Bxb2 21. Qxb2 Nxc4 22. Bxc4 Bxc4 23. Rxc4 Qb6 24. g3 Red8 25. Rac1 h5 26. h4 a4 27. Ra1 Ra5 28. Rb4 Rda8 29. Ra3 Qc5 30. Qd4 Qxd4 31. Rxd4 Rxb5 32. Rdxa4 Rxa4 33. Rxa4 Kg7 34. Rc4 Kf6 35. Rc7 Ke6 36. Kg2 Rb2 37. Kf3 b5 38. Rb7 b4 39. e4 b3 40. Ke3 Rb1 41. f3 Kd6 42. Kf4 Kc6 43. Rb8 Kc5 44. Ke5 Kc4 45. Kf6 Rf1 46. f4 Kc3 47. Kxf7 b2 48. Kxg6 b1=Q 49. Rxb1 Rxb1 50. e5 Kd4 51. e6 Kd5 52. e7 Rb8 53. Kf7 Rb7 54. Kf8 1-0
2024.03.19 Titled Tue 19th Mar Early
600796 Koellner, Ruben Gideon (2453) Durarbayli, Vasif (2627) 1/2-1/2
1. d4 Nf6 2. Nf3 b6 3. Nbd2 Bb7 4. e3 e6 5. Bd3 d5 6. Ne5 Nbd7 7. f4 Be7 8. Qf3 O-O 9. O-O c5 10. c3 a5 11. a4 Ba6 12. Bxa6 Rxa6 13. g4 Nxe5 14. fxe5 Nd7 15. Qe2 Ra8 16. Nf3 f5 17. h3 Rf7 18. Bd2 Qc7 19. Rf2 Raf8 20. Raf1 Qd8 21. Be1 f4 22. exf4 Rxf4 23. Bd2 R4f7 24. b3 Nb8 25. Qb5 Qc7 26. Bg5 Qc6 27. Bxe7 Rxe7 28. dxc5 Qxb5 29. axb5 bxc5 30. Ra2 Ref7 31. Nd2 Ra7 32. Rxf8+ Kxf8 33. Nf3 Nd7 34. Ra4 Nb6 35. Ra2 Ke7 36. Kg2 Ra8 37. h4 a4 38. bxa4 Rxa4 39. Rxa4 Nxa4 40. h5 h6 41. c4 dxc4 42. Kf2 c3 43. Ke3 c4 44. Ne1 Kd7 45. Kd4 Kc7 46. Kxc4 Kb6 47. Kb4 Nc5 48. Kxc3 Kxb5 49. Kd4 Kc6 50. Nf3 Nb3+ 51. Ke4 Kc5 52. g5 hxg5 53. Nxg5 Nd2+ 54. Kd3 Nc4 55. Nxe6+ Kd5 56. Nc7+ Kxe5 57. Kxc4 Kf5 58. Ne8 Kg5 59. Nxg7 Kh6 60. Kd5 Kxg7 61. Ke4 Kh6 62. Kf4 Kxh5 1/2-1/2
2024.03.19 Titled Tue 19th Mar Early
601000 Paravyan, D (2612) Koellner, Ruben Gideon (2453) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Be2 Be7 6. g4 Nxg4 7. Rg1 h5 8. h3 exd4 9. Nxd4 Nge5 10. Nf5 g6 11. Nxe7 Qxe7 12. Nd5 Qd8 13. Bg5 f6 14. Be3 c6 15. Nf4 Nf8 16. Qd2 h4 17. O-O-O g5 18. Nh5 Bxh3 19. f4 gxf4 20. Nxf4 Be6 21. Rg7 Bf7 22. Qb4 Qe7 23. Rxd6 h3 24. Bc5 h2 25. Rd1 Qc7 26. Bh5 a5 27. Qc3 Nd3+ 28. Nxd3 Rxh5 29. Rh1 Ne6 30. Qxf6 Nxg7 31. Qxg7 O-O-O 32. Bf2 Rg8 33. Qd4 Qd7 34. Qa7 Qd6 35. e5 Qb8 36. Qxa5 Qc7 37. Bb6 Rg1+ 38. Kd2 1-0
2024.03.19 Titled Tue 19th Mar Early
601303 Koellner, Ruben Gideon (2453) King, Alexander (2263) 0-1
1. d4 d5 2. Nf3 c5 3. e3 Nf6 4. Nbd2 e6 5. b3 Nc6 6. Bb2 cxd4 7. exd4 Bd6 8. Bd3 Qc7 9. a3 O-O 10. O-O e5 11. dxe5 Nxe5 12. Nxe5 Bxe5 13. Bxe5 Qxe5 14. Nf3 Qc7 15. h3 Re8 16. Re1 Bd7 17. Qd2 h6 18. Qb4 b6 19. Qd4 Qc5 20. b4 Qxd4 21. Nxd4 Kf8 22. f3 Rxe1+ 23. Rxe1 a5 24. Kf2 axb4 25. axb4 Ra4 26. Rb1 Ke7 27. h4 h5 28. Ke3 Ne8 29. Kd2 Nc7 30. Re1+ Kf6 31. Kc3 Ra7 32. Nb3 Ne6 33. g3 Rc7+ 34. Kd2 Ba4 35. Nc1 Nd4 36. Re3 Nxc2 37. Re2 Nxb4 38. Re1 Bd7 39. Nb3 Nc6 40. f4 Na5 41. Nxa5 bxa5 42. Re5 Be6 43. Rxh5 a4 44. Rh8 Ra7 45. Bb1 a3 46. Ba2 d4 47. Bxe6 fxe6 48. Rf8+ Ke7 49. Rg8 Kf7 50. Rc8 a2 51. Rc1 a1=Q 52. Rxa1 Rxa1 53. Kd3 Ra3+ 54. Kxd4 Rxg3 55. Ke5 Rh3 56. Ke4 Rxh4 57. Ke5 Rh5+ 0-1
2024.03.17 Bundesliga 2023-24
610294 Koellner, Ruben Gideon (2483) Wong, Gengchun (2252) 0-1
1. d4 d5 2. Nf3 c5 3. e3 Nf6 4. Nbd2 Nc6 5. dxc5 e6 6. a3 a5 7. b3 Bxc5 8. Bb2 O-O 9. Bd3 Qe7 10. c4 e5 11. cxd5 Nxd5 12. Qb1 f5 13. Bc4 Be6 14. Nxe5 Nxe5 15. Bxe5 Nxe3 16. fxe3 Bxc4 17. Nxc4 b5 18. O-O bxc4 19. Qb2 f4 20. b4 Ba7 21. b5 fxe3 22. Bd4 e2 23. Rfe1 Bxd4+ 24. Qxd4 Rac8 25. b6 Rfd8 26. Qf2 Rd2 27. Rab1 Rf8 28. Qg3 Qc5+ 29. Kh1 Qxb6 30. Rbc1 Qd4 31. Qh3 Kh8 32. Qe6 Qd3 33. h3 h6 34. Kh2 c3 35. Qb3 Rc8 36. Qb7 Rd8 37. Rb1 Qd6+ 38. Kg1 c2 39. Rbc1 Rd1 40. Kf2 Rxc1 41. Rxc1 Qf4+ 42. Kxe2 Qxc1 0-1
2024.03.16 Bundesliga 2023-24
610238 Sreyas, Payyappat (2075) Koellner, Ruben Gideon (2483) 1/2-1/2
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Bb5 Ne4 8. cxd4 Bb6 9. Nc3 O-O 10. Be3 Bg4 11. h3 Bh5 12. Qc2 Nxc3 13. Bxc6 Nxa2 14. Bxb7 Nb4 15. Qc3 Rb8 16. Qxb4 Rxb7 17. O-O Bxf3 18. gxf3 Qh4 19. Kh2 c5 20. Qa4 cxd4 21. Rg1 f6 22. Qc6 Rbf7 23. Rg4 Qh5 24. Bf4 fxe5 25. Qxd5 g6 26. Bxe5 Rd8 27. Qe6 Qxe5+ 28. Qxe5 Bc7 29. Qxc7 Rxc7 30. Rd1 d3 31. Rd2 Rc2 32. Rxc2 dxc2 33. Rc4 Rd2 34. Kg3 Kf7 35. f4 Ke6 36. Kf3 Kd5 37. b3 Rd3+ 38. Kg4 h5+ 39. Kg5 Rd2 40. Kxg6 Rxf2 41. Kxh5 a5 42. Rc8 Ke4 43. Kg6 Kxf4 44. Rc5 Ke3 45. h4 Kd2 46. Rd5+ Kc3 47. Rxa5 Rg2+ 48. Kf6 Rh2 49. Rc5+ Kxb3 50. Kg5 Rd2 51. Rxc2 Kxc2 52. h5 Kd3 53. h6 Ke4 54. h7 Rd8 55. Kf6 Kf4 56. Kg7 Rd7+ 57. Kg8 Kf5 58. h8=Q Rd8+ 59. Kg7 Rxh8 60. Kxh8 1/2-1/2
2024.03.12 Titled Tue 12th Mar Late
608029 Todev, Simeon (2095) Koellner, Ruben Gideon (2453) 0-1
1. e4 d6 2. Nf3 Nf6 3. Nc3 e5 4. d4 Nbd7 5. dxe5 dxe5 6. Bg5 Be7 7. Bc4 c6 8. O-O O-O 9. h3 h6 10. Bh4 b5 11. Bd3 a5 12. Bg3 Qc7 13. Qe2 a4 14. Nd1 Re8 15. Ne3 Bf8 16. Nf5 g6 17. Ne3 Nh5 18. Bh2 Nf4 19. Bxf4 exf4 20. Ng4 h5 21. Ngh2 Bg7 22. c3 a3 23. Rfc1 axb2 24. Qxb2 Nc5 25. Qe2 Be6 26. Nd4 Nxd3 27. Qxd3 Bc4 28. Qc2 Ra3 29. Qb2 Rea8 30. Nhf3 Rxa2 31. Rxa2 Rxa2 32. Qb1 Qd7 33. Rd1 Qe8 34. Nd2 Ra4 35. Nxc4 Rxc4 36. Qd3 c5 37. Nf3 Rxc3 38. Qd2 b4 39. Qxf4 b3 40. Qd2 Qxe4 41. Qd8+ Bf8 42. Ng5 Qe7 43. Qd2 Rc2 44. Qf4 b2 45. Ne4 Rc1 46. Nf6+ Qxf6 0-1
2024.03.12 Titled Tue 12th Mar Late
608179 Koellner, Ruben Gideon (2453) Sanchez Enriquez, O (2286) 1-0
1. d4 d6 2. Nf3 Bg4 3. Nbd2 Nd7 4. e4 Ngf6 5. Bd3 e5 6. c3 c6 7. h3 Bh5 8. Nf1 Be7 9. Ng3 Bg6 10. O-O O-O 11. Qe2 Re8 12. Rd1 Qc7 13. dxe5 dxe5 14. Nh4 Nc5 15. Nxg6 hxg6 16. Bc2 Ne6 17. Be3 Bc5 18. b4 Bb6 19. Bb3 Nf4 20. Qf3 Rad8 21. Ne2 Nxe2+ 22. Qxe2 Nh5 23. Bg5 Rxd1+ 24. Rxd1 Nf4 25. Qg4 Bxf2+ 26. Kxf2 Qb6+ 27. Kg3 Qe3+ 28. Kh2 Qxe4 29. Rd7 Rf8 30. Rxb7 c5 31. Rxa7 c4 32. Bd1 Qd3 33. Bxf4 exf4 34. Qf3 Qd2 35. Ra8 Rxa8 36. Qxa8+ Kh7 37. Qf3 f5 38. a4 Kh6 39. a5 Kg5 40. a6 Qa2 41. b5 Qb2 42. a7 Qa3 43. a8=Q Qa6 1-0
2024.03.12 Titled Tue 12th Mar Late
608438 Koellner, Ruben Gideon (2453) Sanal, V (2558) 1/2-1/2
1. d4 d6 2. Nf3 Nf6 3. Nbd2 Nbd7 4. e4 e5 5. dxe5 Nxe5 6. Nxe5 dxe5 7. Bc4 Bc5 8. O-O O-O 9. Qe2 c6 10. a4 a5 11. Nb3 Bb6 12. Be3 Bxe3 13. Qxe3 Bg4 14. f3 Bd7 15. Rfd1 b6 16. Rd2 Qc7 17. Rad1 Rad8 18. Nc1 h6 19. Qc3 b5 20. Bf1 Qb6+ 21. Kh1 Rfe8 22. axb5 cxb5 23. Rd6 Bc6 24. Rxd8 Rxd8 25. Rxd8+ Qxd8 26. Qxc6 Qd1 27. Qxb5 Qxc1 28. c3 a4 29. Qe2 Nd7 30. Qf2 Nc5 31. Qxc5 Qxf1+ 32. Qg1 Qe2 33. Qa1 Kf8 34. h3 Qc2 35. Qa3+ Kg8 36. Qa1 h5 37. Kh2 h4 38. Kh1 g5 39. Kh2 Kg7 40. Qa3 Qf2 41. Qb4 Qg3+ 42. Kg1 Qe1+ 43. Kh2 Qg3+ 44. Kg1 Qe1+ 45. Kh2 Qg3+ 1/2-1/2
2024.03.12 Titled Tue 12th Mar Late
608531 Taher, Yoseph Theolifus (2445) Koellner, Ruben Gideon (2453) 1-0
1. e4 d6 2. f4 e5 3. Nf3 exf4 4. d4 g5 5. h4 g4 6. Ng5 h6 7. Nxf7 Kxf7 8. Bc4+ Kg7 9. Bxf4 Nf6 10. Nc3 Nc6 11. Qd2 Nh5 12. O-O-O Be7 13. Be3 Bd7 14. Rhf1 Nf6 15. Bf4 Be8 16. Qe2 Bh5 17. e5 Ne8 18. Nd5 Bxh4 19. Kb1 Bg5 20. g3 Rf8 21. Rh1 Bg6 22. Qxg4 Qc8 23. e6 Bf5 24. Qh5 Qxe6 25. Bxg5 hxg5 26. Nf4 Qf6 27. Ne6+ Bxe6 28. Qh7# 1-0
2024.03.12 Titled Tue 12th Mar Late
608793 Koellner, Ruben Gideon (2453) Dobrikov, Marco (2362) 1-0
1. d4 g6 2. Nf3 Bg7 3. Nbd2 c5 4. e3 d5 5. dxc5 Nd7 6. Nb3 Nxc5 7. Nxc5 Qa5+ 8. Bd2 Qxc5 9. c4 dxc4 10. Qc2 Bf5 11. e4 Bg4 12. Bxc4 Rc8 13. Rc1 Bxf3 14. Bb5+ Kd8 15. Qxc5 Rxc5 16. Rxc5 Bxg2 17. Rg1 Bxe4 18. Bf4 e6 19. Ke2 Nf6 20. f3 Bd5 21. Rgc1 Ne8 22. Rc8+ Ke7 23. b3 Bd4 24. Bxe8 Rxe8 25. R1c7+ Kf8 26. Bh6+ Bg7 27. Bxg7+ Kxg7 28. Rxe8 Kf6 29. Ree7 e5 30. Rxb7 Bxb7 31. Rxb7 h5 32. Rxa7 e4 33. fxe4 Ke5 34. Rxf7 g5 35. Rf5+ Kxe4 36. Rxg5 h4 37. Rg4+ Kf5 38. Rxh4 Kg5 39. Rh3 Kf6 40. Rg3 Kf5 41. Kf2 Kf4 42. a3 Kf5 43. Re3 Kf4 44. b4 Kf5 45. b5 Kf4 46. b6 Kf5 47. b7 Kf4 48. b8=Q+ Kf5 49. Qb4 Kf6 50. Rc3 Kf7 51. Rc5 Kf6 52. Qb6+ Kf7 53. Rc7+ Kf8 54. Qb7 Ke8 55. a4 1-0
2024.03.12 Titled Tue 12th Mar Late
608946 Prestia, Paris (2059) Koellner, Ruben Gideon (2453) 0-1
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Nfd2 f5 5. e3 Nf6 6. Nc3 c5 7. d5 Nbd7 8. Be2 g6 9. f3 exf3 10. Nxf3 Bg7 11. Qc2 O-O 12. e4 fxe4 13. Nxe4 Nxe4 14. Qxe4 Nf6 15. Qh4 Bf5 16. O-O Re8 17. Re1 Ng4 18. Qxd8 Raxd8 19. Bg5 Rb8 20. Bf1 Bxb2 21. Rad1 Ne5 22. Bf4 Bc3 23. Re3 Nxf3+ 24. Rxf3 Bd4+ 25. Rxd4 cxd4 26. Bxd6 Rbc8 27. c5 Be4 28. Rf4 Bxd5 29. Rxd4 Bxa2 30. Ra4 Bd5 31. Rxa7 Ra8 32. Rxa8 Rxa8 33. Kf2 Ra2+ 34. Kg3 Kf7 35. h4 Ra3+ 36. Kf2 Ke6 37. Bf8 Ra2+ 38. Kg3 h5 39. Bh6 Ke5 40. Bg7+ Ke4 41. Bb5 Kf5 42. Bd7+ Be6 43. c6 Bxd7 44. cxb7 Ra3+ 0-1
2024.03.12 Titled Tue 12th Mar Late
609130 Shimanov, A (2578) Koellner, Ruben Gideon (2453) 1-0
1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 c5 7. Ne5 Qc8 8. Qd3 Nc6 9. Nxd7 Nxd7 10. O-O Be7 11. Nc3 O-O 12. b3 Rd8 13. Bb2 Nf6 14. Qc2 Nd4 15. Qd1 Qd7 16. Rc1 Rac8 17. d3 b6 18. Qd2 Nd5 19. Nxd5 exd5 20. e3 Ne6 21. f4 d4 22. e4 Nf8 23. Rce1 b5 24. e5 c4 25. bxc4 bxc4 26. dxc4 Rxc4 27. Qd3 Qa4 28. f5 Qc2 29. Be4 Qxd3 30. Bxd3 Rc7 31. Rc1 Rb7 32. Ba1 Ba3 33. Rc2 Re7 34. Re1 Red7 35. Re4 Rd5 36. e6 fxe6 37. fxe6 Ng6 38. Kg2 Ne5 39. Rd2 Bb4 40. Rd1 Bc3 41. Bc2 Bxa1 42. e7 1-0
2024.03.12 Titled Tue 12th Mar Late
609298 Koellner, Ruben Gideon (2453) Karas, Marek (2212) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 Bg4 4. h3 Bh5 5. g4 Bg6 6. Ne5 Nfd7 7. Nxg6 hxg6 8. Bg2 c6 9. Nd2 e5 10. e4 dxe4 11. Nxe4 Be7 12. dxe5 Nxe5 13. Qxd8+ Kxd8 14. Bf4 Nbd7 15. O-O-O f6 16. Ng5 fxg5 17. Bxe5 Bf6 18. Bd6 Re8 19. Rhe1 Rxe1 20. Rxe1 a5 21. Be4 Ne5 22. Rd1 Ke8 23. Bc7 Ke7 24. a4 Rh8 25. Bg2 Ra8 26. Re1 Ke6 27. h4 Re8 28. hxg5 Bxg5+ 29. Kb1 Bf4 30. Bxe5 Bxe5 31. f4 1-0
2024.03.12 Titled Tue 12th Mar Late
609500 Mazurkiewicz, M (2145) Koellner, Ruben Gideon (2453) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. f3 Bd6 9. Nh3 Ke7 10. Nf2 Nbd7 11. Nd3 a6 12. Be3 h6 13. a4 g5 14. O-O Rag8 15. g3 h5 16. Kg2 h4 17. g4 Nh7 18. a5 Ndf8 19. Na4 Ng6 20. Nac5 Rb8 21. h3 Nf4+ 22. Bxf4 gxf4 23. Ra3 Rhd8 24. Rb3 Bxc5 25. Nxc5 Rd2+ 26. Rf2 Rbd8 27. Nd3 Rxf2+ 28. Kxf2 Ng5 29. Kg2 c5 30. Rxb7+ Kf6 31. b3 Rc8 32. Nf2 c4 33. b4 Nf7 34. b5 axb5 35. Rxb5 Ra8 36. Rc5 Nd6 37. Rc6 Ke7 38. a6 Kd7 39. Rb6 Kc7 40. Rb4 Rxa6 0-1
2024.03.12 Titled Tue 12th Mar Late
609650 Koellner, Ruben Gideon (2453) Pichot, A (2644) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 c6 4. Nbd2 Bf5 5. Ne5 h6 6. Bd3 Bxd3 7. cxd3 Nbd7 8. f4 g5 9. fxg5 hxg5 10. Ndf3 Rg8 11. O-O e6 12. e4 Qb6 13. Nxd7 Nxd7 14. Bxg5 Bd6 15. e5 Nxe5 16. Kh1 Nd7 17. Qe2 Qb4 18. a3 Qb5 19. Bh4 Rh8 20. Rae1 Rh6 21. g3 Qb6 22. Ng5 Be7 23. Nxf7 Rxh4 24. Qxe6 Rxh2+ 25. Kxh2 1-0
2024.03.12 Titled Tue 12th Mar Late
609854 Paravyan, D (2612) Koellner, Ruben Gideon (2453) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. h3 Be7 6. g4 h6 7. Be3 c6 8. a4 Qc7 9. Bc4 Nf8 10. g5 hxg5 11. Nxg5 Ne6 12. Nxe6 Bxe6 13. Bxe6 fxe6 14. dxe5 dxe5 15. a5 Bb4 16. a6 b5 17. Kf1 Qf7 18. Qf3 O-O-O 19. Ne2 Kb8 20. Rg1 Rh7 21. Rg5 Bd6 22. Rd1 Qe7 23. Kg2 Bc7 24. Rxd8+ Qxd8 25. Ng3 Qh8 26. Rg6 Rxh3 27. Bg5 Rh2+ 28. Kg1 Bb6 29. Be3 Bc7 30. Rxg7 Qxg7 31. Kxh2 Ng4+ 32. Kh3 Nxe3 33. Qxe3 Bb6 34. Qf3 Kc7 35. b4 Qe7 36. c3 c5 37. Nh5 cxb4 38. cxb4 Bd4 39. Nf6 Qxb4 40. Qh5 Kb6 41. Qe8 Qd6 42. Qc8 Ka5 43. Nd7 b4 44. Nb8 Ka4 45. Qb7 Qc5 46. Nc6 b3 47. f4 Ka3 48. fxe5 Bxe5 49. Nxe5 Qxe5 50. Qxa7 b2 51. Qb7 Qc3+ 52. Kg4 Qb3 53. Qxb3+ Kxb3 54. a7 b1=Q 55. a8=Q Qg1+ 56. Kh5 Qg3 57. Qc6 e5 58. Kh6 Kb4 59. Kh5 Kb3 60. Kh6 Kb4 61. Qg6 Qh4+ 62. Kg7 Kc4 63. Qe6+ Kd4 64. Qd5+ Ke3 65. Qxe5 Qxe4 66. Qxe4+ Kxe4 1/2-1/2
2024.03.05 Titled Tue 5th Mar Early
612950 Koellner, Ruben Gideon (2453) Kazarian, Anna-Maja (2206) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 Bg4 4. h3 Bxf3 5. Qxf3 c6 6. Nd2 Nbd7 7. e4 e6 8. e5 Ng8 9. c3 c5 10. Bd3 Qb6 11. Qf4 Ne7 12. Nf3 Ng6 13. Qe3 Be7 14. h4 h6 15. h5 Ngf8 16. Qf4 Nh7 17. Qg4 Ng5 18. Nxg5 hxg5 19. O-O O-O-O 20. b3 f5 21. exf6 Nxf6 22. Qxg5 Rxh5 23. Qxg7 Rdh8 24. g3 Qd8 25. Bf4 R8h7 26. Bxh7 Rxh7 27. Qg6 Qh8 28. Kg2 Rh2+ 29. Kf3 Qh3 30. Rg1 Kd7 31. Be5 Ne4 32. Ke3 Rxf2 33. Rae1 Bg5+ 34. Qxg5 Nxg5 35. Kxf2 Qh2+ 36. Rg2 Nh3+ 37. Kf3 Ng5+ 38. Kf2 Nh3+ 39. Kf3 Ng5+ 40. Kg4 Qxg2 41. Kxg5 Qxa2 42. Bf4 Qxb3 43. dxc5 Qxc3 44. Rh1 Qg7+ 45. Kh4 Qh7+ 46. Kg4 Qxh1 47. Kg5 Qe4 48. Kf6 Qf5+ 49. Kg7 Kc6 50. Bd6 d4 51. g4 Qxg4+ 52. Kf6 d3 53. Ke7 d2 54. Kd8 d1=Q 55. Kc8 e5+ 56. Kb8 Qg8+ 57. Kxa7 Qa4# 0-1
2024.03.05 Titled Tue 5th Mar Early
613285 George Samir, David (2130) Koellner, Ruben Gideon (2453) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. O-O-O+ Bd6 8. Bxf6+ gxf6 9. f3 Ke7 10. Nge2 Nd7 11. Ng3 c6 12. Be2 h5 13. Bc4 Rag8 14. Bxe6 fxe6 15. Rd2 Bc5 16. Re1 h4 17. Nf1 Nb6 18. Red1 Rg7 19. a3 a5 20. Na4 Bd4 21. Nxb6 Bxb6 22. Rd7+ Kf8 23. Rd8+ Bxd8 24. Rxd8+ Ke7 25. Rxh8 Rxg2 26. Kd1 Rf2 27. Nd2 Rxh2 28. c3 b5 29. b3 Kf7 30. Rc8 h3 31. Kc2 Kg7 32. Rc7+ Kg6 33. Kd3 Rh1 34. Rc8 Kg7 35. Rc7+ Kg6 36. Rc8 Kg5 37. Rh8 Kf4 38. Rh4+ Kg3 39. Rh8 h2 40. Ke2 Rg1 41. Nf1+ Kf4 42. Rh4+ Kg5 43. Rxh2 Kg6 44. Kf2 Rg5 45. Rg2 Rxg2+ 46. Kxg2 Kg5 47. Kg3 f5 48. exf5 exf5 49. Nd2 Kh5 50. f4 e4 51. Kf2 Kg4 52. Ke3 c5 53. c4 b4 54. axb4 axb4 55. Nxe4 fxe4 56. Kxe4 Kh5 57. f5 Kg5 58. Ke5 Kh6 59. f6 Kh7 60. Ke6 Kg6 61. f7 Kg5 62. f8=Q Kh4 63. Qf5 Kg3 64. Ke5 Kg2 65. Ke4 Kh1 66. Kf3 Kg1 67. Qg4+ Kh2 68. Qg2# 1-0
2024.02.27 Titled Tue 27th Feb Late
624560 Koellner, Ruben Gideon (2465) Kotyk, Michael (2125) 1-0
1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Nbd2 c5 5. c3 c4 6. Qc2 Nc6 7. e4 dxe4 8. Nxe4 Nxe4 9. Qxe4 Na5 10. Ne5 Qd5 11. Qf4 f6 12. Nf3 Bd6 13. Qe3 b5 14. Be2 Bb7 15. O-O Kf7 16. Ne1 Qf5 17. h3 h5 18. Bf3 Bd5 19. Bd2 Nc6 20. a3 g5 21. Bxd5 exd5 22. Qf3 Qxf3 23. Nxf3 g4 24. Ne1 Rhg8 25. hxg4 hxg4 26. g3 a5 27. Nc2 Rae8 28. Rae1 Kg6 29. Ne3 Ne7 30. Nxg4 Nf5 31. Kg2 b4 32. axb4 axb4 33. Ne3 Nxe3+ 34. Bxe3 b3 35. Ra1 Ra8 36. Rh1 Rgb8 37. Rh6+ Kf7 38. Rh7+ Ke6 39. Rha7 Rxa7 40. Rxa7 f5 41. Ra6 Kd7 42. Rxd6+ Kxd6 43. Bf4+ Ke6 44. Bxb8 Kf6 45. Kf3 Kg5 46. Be5 f4 47. Bxf4+ Kf5 48. g4+ 1-0
2024.02.27 Titled Tue 27th Feb Late
624845 Ronka, E (2300) Koellner, Ruben Gideon (2465) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 c6 6. g4 h6 7. Be3 Be7 8. Qd2 Qc7 9. h4 Nf8 10. g5 hxg5 11. hxg5 Ng4 12. O-O-O Nxe3 13. fxe3 Ng6 14. Bc4 Be6 15. Bxe6 fxe6 16. Qg2 O-O-O 17. Qg4 Nf8 18. Rh1 Rxh1 19. Rxh1 Kb8 20. Rh8 exd4 21. exd4 d5 22. Rg8 Bb4 23. Nd1 Qf7 24. Rh8 Bd6 25. e5 Be7 26. g6 Nxg6 27. Rxd8+ Bxd8 28. Nd2 Qf5 29. Qg2 Bg5 30. c3 Nf4 31. Qh2 Nd3+ 32. Kc2 Ne1+ 33. Kb3 Qc2+ 34. Ka3 Qxd2 35. Qh8+ Kc7 36. Qxg7+ Kb6 37. Qf8 Nc2+ 38. Kb3 Qxd1 39. Qc5+ Ka6 40. Ka4 Nxd4+ 41. Ka3 Nb5+ 42. Kb4 Qg4+ 43. Kb3 Qc4+ 44. Qxc4 dxc4+ 45. Kxc4 Nc7 46. Kc5 Be7+ 47. Kc4 b5+ 48. Kd4 c5+ 49. Ke4 Kb6 0-1
2024.02.27 Titled Tue 27th Feb Late
625002 Koellner, Ruben Gideon (2465) Ribeiro, Gustavo (2250) 1-0
1. d4 Nf6 2. Nf3 b6 3. Nbd2 Bb7 4. e3 e6 5. Bd3 d5 6. Ne5 Nbd7 7. f4 c5 8. c3 Bd6 9. Qf3 Qc7 10. O-O g6 11. a4 h5 12. g3 Rf8 13. Qg2 O-O-O 14. a5 Kb8 15. axb6 axb6 16. Nb1 c4 17. Bc2 Ne4 18. Na3 Bxa3 19. Rxa3 Nxe5 20. fxe5 Bc6 21. Bd2 Kb7 22. Qe2 Ra8 23. Rxa8 Rxa8 24. Bxe4 dxe4 25. Qxc4 Qd7 26. Qb4 Bb5 27. c4 Bc6 28. Bc3 Ra4 29. Qf8 Qe8 30. Rxf7+ Ka6 31. Qxe8 Bxe8 32. Re7 Bc6 33. Rxe6 Rxc4 34. Rxg6 Bd5 35. Rd6 Bg8 36. d5 Kb7 37. e6 b5 38. Rd7+ Rc7 39. Rd8 Bh7 40. d6 1-0
2024.02.27 Titled Tue 27th Feb Late
625181 Koellner, Ruben Gideon (2465) Bortnyk, Olexandr (2608) 0-1
1. d4 Nf6 2. Nf3 b6 3. Nbd2 Bb7 4. e3 g6 5. Bd3 d5 6. Ne5 Bg7 7. f4 c5 8. c3 O-O 9. Qf3 Ba6 10. Bxa6 Nxa6 11. g4 Nc7 12. h4 h5 13. g5 Nd7 14. O-O Nxe5 15. fxe5 Qd7 16. Qg3 a5 17. a4 Ne6 18. Nf3 b5 19. axb5 Qxb5 20. Rf2 a4 21. Qg2 Rfb8 22. Ne1 Qb3 23. Ra3 Qd1 24. Bd2 Rxb2 25. Qxd5 Rd8 0-1
2024.02.27 Titled Tue 27th Feb Late
625494 Agasiyev, Ka (2441) Koellner, Ruben Gideon (2465) 0-1
1. d4 d6 2. Nf3 Nf6 3. g3 Nbd7 4. Bg2 e5 5. O-O Be7 6. c4 O-O 7. Nc3 c6 8. e4 a6 9. Re1 b5 10. a3 Bb7 11. cxb5 cxb5 12. Nh4 Re8 13. Nf5 Bf8 14. Nd5 Nxd5 15. exd5 Nf6 16. dxe5 dxe5 17. Bg5 h6 18. Bxf6 Qxf6 19. Ne3 Bc5 20. Rc1 Bd4 21. Rc7 Qb6 22. Rxb7 Qxb7 23. d6 Qd7 24. Bxa8 Rxa8 25. Qf3 Rd8 26. Nf5 g6 27. Nxd4 exd4 28. Re7 Qf5 29. Qc6 Kg7 30. d7 d3 31. Qd6 Qf6 32. Qxf6+ Kxf6 33. Re1 Rxd7 34. Kg2 d2 35. Rd1 Ke5 36. Kf3 Rd3+ 37. Ke2 Ke4 38. Rxd2 Rxd2+ 39. Kxd2 Kf3 40. Ke1 g5 41. Kf1 g4 42. Kg1 Ke2 43. Kg2 h5 44. Kg1 a5 45. Kg2 a4 46. Kg1 Kd2 47. f4 gxf3 48. Kf2 Kc2 49. Kxf3 Kxb2 50. g4 hxg4+ 51. Kxg4 Kxa3 52. h4 b4 53. h5 b3 54. h6 b2 55. h7 b1=Q 56. h8=Q Qg6+ 57. Kf3 Qe6 58. Qe8 Qb3+ 59. Ke2 Ka2 60. Qe5 a3 61. Kd2 Qb2+ 0-1
2024.02.27 Titled Tue 27th Feb Late
625669 Koellner, Ruben Gideon (2465) Erigaisi, Arjun (2738) 0-1
1. d4 d6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 Nc6 5. c3 e5 6. dxe5 dxe5 7. Bc4 Nf6 8. O-O O-O 9. a4 a5 10. Qe2 Nh5 11. g3 Kh8 12. Rd1 f5 13. Nf1 Qe8 14. Be3 b6 15. exf5 Bxf5 16. Bd5 Nf6 17. Nh4 Bg4 18. Bf3 Bxf3 19. Nxf3 e4 20. Nd4 Ne5 21. Bf4 Nd3 22. Rxd3 exd3 23. Qxd3 Qf7 24. Ne3 Nh5 25. Ng2 Nxf4 26. Nxf4 g5 27. Nh3 h6 28. f4 Rad8 29. fxg5 c5 30. Nf4 cxd4 31. Ng6+ Kg8 32. Nxf8 Rxf8 33. gxh6 Bxh6 34. cxd4 Qf2+ 35. Kh1 Qf3+ 36. Qxf3 Rxf3 37. Re1 Rb3 38. Re6 Bg7 39. d5 Kf7 40. Rc6 Bxb2 41. Rc7+ Kf6 42. d6 Be5 43. Rc6 Ke6 44. Kg2 Bxd6 45. g4 Rb2+ 46. Kf3 Kd5 47. Rc8 Rxh2 48. g5 Rh1 49. Kg4 Ke6 50. Rc6 Rg1+ 51. Kh5 Kf5 52. Kh6 Bf8+ 53. Kh7 Rxg5 54. Rxb6 Bb4 55. Kh6 Rg1 56. Rb5+ Ke4 57. Rb8 Kd3 58. Rd8+ Kc4 59. Re8 Kb3 60. Re3+ Kxa4 61. Kh5 Kb5 62. Re5+ Kc4 63. Re4+ Kb3 64. Re3+ Bc3 65. Re8 a4 66. Rb8+ Bb4 67. Ra8 a3 68. Ra6 a2 69. Rg6 Rxg6 70. Kxg6 a1=Q 0-1
2024.02.27 Titled Tue 27th Feb Late
625851 Ibadov, Dashgyn (2360) Koellner, Ruben Gideon (2465) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. a4 c6 6. Bc4 Be7 7. O-O h6 8. Re1 Qc7 9. h3 Nf8 10. Qd3 g5 11. d5 Ng6 12. Be3 g4 13. hxg4 Bxg4 14. Nd2 h5 15. Bb3 h4 16. dxc6 bxc6 17. Nc4 Nh5 18. f3 Ngf4 19. Qd2 Be6 20. Rad1 Rd8 21. Kh2 Rg8 22. Bxf4 Nxf4 23. Ne3 Rg3 24. Bxe6 fxe6 25. Ne2 Nxe2 26. Qxe2 Bg5 27. Ng4 Bf4 28. Kh1 Ke7 29. Nf2 Rdg8 30. Rg1 Qb6 31. Nh3 Be3 32. Rge1 Rxg2 33. Qxg2 Rxg2 34. Kxg2 Qxb2 35. Re2 d5 36. Rd3 d4 37. Rb3 Qc1 38. Rb7+ Kd6 39. Rb3 c5 40. Nf2 c4 41. Rb5 a6 42. Ra5 Ke7 43. Rxa6 Kf6 44. Ng4+ Kg5 45. Nxe3 dxe3 46. Rxe6 Kf4 47. Rf6+ Kg5 48. Rf5+ Kg6 49. f4 exf4 50. Rxf4 Kg5 51. Rf3 Kg4 52. Rfxe3 Qa1 53. Rf2 Qxa4 54. e5 Qc6+ 55. Kg1 h3 56. e6 Qc5 57. Re4+ Kg3 0-1
2024.02.27 Titled Tue 27th Feb Late
626026 Mendez Fortes, E (2231) Koellner, Ruben Gideon (2465) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. a5 Nf8 10. Qd3 Ng6 11. d5 O-O 12. a6 b5 13. Bb3 b4 14. Ne2 cxd5 15. Bxd5 Nxd5 16. Qxd5 Be6 17. Qd3 Rfc8 18. c3 b3 19. Ng3 Bc4 20. Qd1 Qc6 21. Nf5 Bf8 22. h4 Rd8 23. h5 Ne7 24. Ne3 Qxe4 25. Ra4 d5 26. Bd2 Qh7 27. Nxe5 Bb5 28. Ra1 Rab8 29. Qxb3 Bxa6 30. Qa2 Bd3 31. Nxd3 Qxd3 32. Bc1 Nc6 33. Rd1 Qe2 34. Qa6 Qb5 35. Qxb5 Rxb5 36. Ra6 Rc5 37. Nf5 d4 38. cxd4 Rxf5 39. Rxc6 Rxh5 40. Be3 Rhd5 41. Ra1 a5 42. Ra6 Bb4 43. Rc1 R8d7 44. Ra8+ Kh7 45. Kf1 Kg6 46. Ke2 f6 47. Kd3 Rb5 48. Rc2 Bd6 49. Ra6 Bb4 50. g4 Rdb7 51. Bc1 Be7 52. Rc8 Rb3+ 53. Kc2 Rf3 54. Be3 Bb4 55. Kd3 Rd7 56. Ke4 Rh3 57. Rc2 Re7+ 58. Kd3 Rh4 59. f3 Rh3 60. Rf2 Rh1 61. f4 Rh3 62. Re2 h5 63. f5+ Kh7 64. gxh5 Rxh5 65. Bd2 Rxe2 66. Kxe2 Rh2+ 67. Ke3 Bxd2+ 68. Kd3 Bb4 69. d5 Rxb2 70. Rb6 Rd2+ 71. Ke4 Kh6 72. Rb7 Re2+ 73. Kd4 Re5 74. Ra7 Rxf5 75. Kc4 Rf4+ 76. Kb5 Rd4 77. Kc6 f5 78. Rf7 g6 79. Kd7 Rxd5+ 80. Ke6 Rd6+ 81. Ke5 Rc6 82. Rf8 Bxf8 0-1
2024.02.27 Titled Tue 27th Feb Late
626062 Koellner, Ruben Gideon (2465) Pichot, A (2644) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 c6 4. Nbd2 Bf5 5. Ne5 Nfd7 6. Qf3 Bg6 7. Nxg6 hxg6 8. Bd3 e5 9. e4 f5 10. Qg3 Qf6 11. dxe5 Nxe5 12. exd5 Bd6 13. Qe3 O-O 14. Nf3 Nxf3+ 15. Qxf3 Re8+ 16. Kf1 Nd7 17. dxc6 bxc6 18. Bc4+ Kf8 19. Qxc6 Re1+ 20. Kxe1 Bb4+ 21. Bd2 Bxd2+ 22. Kxd2 Qxc6 23. Bd3 Nc5 24. Rhe1 Rd8 25. Re3 Qxg2 26. Rae1 Nxd3 27. cxd3 Qxh2 28. R1e2 Qd6 29. Kc2 Kf7 30. a3 f4 31. Rf3 Qc6+ 0-1
2024.02.27 Titled Tue 27th Feb Late
626216 Martin Fuentes, A (2369) Koellner, Ruben Gideon (2465) 0-1
1. e4 d6 2. Nc3 Nf6 3. d4 e5 4. Bc4 Be7 5. Nf3 Nbd7 6. O-O c6 7. a4 h6 8. Be3 Qc7 9. h3 Nf8 10. Qd2 g5 11. Rad1 Ng6 12. b4 g4 13. hxg4 Bxg4 14. Be2 h5 15. b5 h4 16. Ng5 Qc8 17. f3 Bd7 18. Bc4 Rf8 19. dxe5 dxe5 20. f4 Ng4 21. Nxf7 Nxe3 22. Qxe3 Rxf7 23. Bxf7+ Kxf7 24. f5 Nf4 25. Qd2 Be8 26. Ne2 Nxe2+ 27. Qxe2 Bf6 28. Rd6 cxb5 29. Rfd1 Qc4 30. Qh5+ Ke7 31. Re6+ Qxe6 32. fxe6 Bxh5 0-1
2024.02.27 Titled Tue 27th Feb Late
626336 Koellner, Ruben Gideon (2465) Rasulov, Vu (2538) 1-0
1. d4 a6 2. Nf3 b5 3. e4 Bb7 4. Nbd2 g6 5. c3 Bg7 6. Bd3 d6 7. O-O c5 8. b3 Nf6 9. Bb2 O-O 10. a3 Nc6 11. Qe2 Rc8 12. Rac1 Bh6 13. Rfd1 e5 14. d5 Nb8 15. Ra1 Nbd7 16. a4 c4 17. bxc4 bxa4 18. Rxa4 Nc5 19. Raa1 a5 20. Ba3 Nfd7 21. Bc2 Ba6 22. Nb3 Nxb3 23. Bxb3 Nc5 24. Bxc5 Rxc5 25. Ne1 Qb6 26. Rdb1 Rfc8 27. Nd3 R5c7 28. Qa2 Rb8 29. c5 dxc5 30. Bc4 Qa7 31. Rxb8+ Qxb8 32. Bxa6 c4 33. Bxc4 Qc8 34. Nxe5 1-0
2024.02.13 Baden-Baden Faschingsopen
638950 Cernov, Henrik (2049) Koellner, Ruben Gideon (2465) 0-1
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 Qe7 7. O-O Bb6 8. Bg5 Nf6 9. Bb5 h6 10. Bxf6 Qxf6 11. Bxc6 bxc6 12. Nxe5 O-O 13. Nd2 c5 14. Ndc4 d6 15. Nf3 Bg4 16. a4 cxd4 17. Nxb6 axb6 18. cxd4 Bxf3 19. gxf3 Ra5 20. d5 Rfa8 21. Ra3 b5 22. Qa1 Qg5+ 23. Kh1 Rxa4 24. Rxa4 Rxa4 25. Qc3 Rc4 26. Qb2 Qf4 27. Kg2 b4 28. Ra1 0-1
2024.02.13 Baden-Baden Faschingsopen
638959 Koellner, Ruben Gideon (2465) Knudsen, Simon (2231) 1-0
1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 c5 5. c3 Nc6 6. Nbd2 cxd4 7. exd4 Nh5 8. Be3 Bd6 9. Bd3 Nf4 10. Bxf4 Bxf4 11. O-O O-O 12. g3 Bh6 13. h4 Rb8 14. a4 g6 15. Re1 Qd6 16. a5 Bd7 17. a6 b6 18. Nb1 b5 19. b4 Rb6 20. Nbd2 Nb8 21. Nb3 Rxa6 22. Nc5 Rxa1 23. Qxa1 a6 24. Ne5 Bc8 25. h5 Nc6 26. Nxc6 Qxc6 27. Re2 Kg7 28. Ra2 gxh5 29. Qd1 e5 30. dxe5 h4 31. Qh5 hxg3 32. f4 f5 33. Qh4 d4 34. Rg2 dxc3 35. e6 Rf6 36. Rxg3+ Rg6 37. Bxf5 Qd6 38. Bxg6 hxg6 39. Rd3 c2 40. Rxd6 c1=Q+ 41. Kg2 Bxf4 42. Rd8 Qc2+ 43. Kf3 Qc3+ 44. Kxf4 Qxb4+ 45. Ne4 1-0
2024.02.12 Baden-Baden Faschingsopen
638925 Kocharin, Timur (2216) Koellner, Ruben Gideon (2465) 1/2-1/2
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 O-O 6. Bg5 h6 7. Bh4 Be7 8. O-O d6 9. h3 Na5 10. Bxf6 Bxf6 11. Qd2 c6 12. a4 Nxc4 13. dxc4 Be7 14. b3 f5 15. exf5 Bxf5 16. Rad1 Qe8 17. c5 Rd8 18. cxd6 Bxd6 19. Qe2 e4 20. Qc4+ Qf7 21. Qxf7+ Kxf7 22. Nd2 Bb4 23. Ncb1 b5 24. g4 Bg6 25. c3 Be7 26. Rde1 bxa4 27. bxa4 Rd3 28. Nxe4 Rfd8 29. f3 Kf8 30. Re2 Rb8 31. Nbd2 Rb2 32. Rff2 Bh4 33. Rg2 Ra2 34. Nc4 Rxa4 35. Ne5 Bxe4 36. Rxe4 Rxe4 37. fxe4 Rxh3 38. Nxc6 Rxc3 39. Nxa7 Rc5 40. Rb2 Bf6 41. Rb7 Rg5 42. Kf2 Rxg4 43. Kf3 Rg1 44. Nc8 Rf1+ 45. Ke3 Rd1 46. Nb6 Bg5+ 47. Kf3 Rf1+ 48. Ke2 Ra1 49. e5 Kg8 50. Nd7 Ra3 51. Kf2 Bh4+ 52. Ke2 Bg5 53. Kf2 Kf7 54. Nf6+ Ke6 55. Rxg7 Kxe5 56. Nd7+ Kf5 57. Rf7+ Ke6 58. Rh7 Be7 59. Nb6 Bg5 60. Nd7 Rc3 61. Nf8+ Kf5 62. Rb7 Rc6 63. Nd7 Rc2+ 64. Kf3 Rc3+ 65. Kf2 Be3+ 66. Kg2 Ke6 67. Nf8+ Kf6 68. Nd7+ Ke6 69. Nf8+ Kd5 70. Ng6 Bg5 71. Ne7+ Ke5 72. Rb5+ Ke6 73. Nd5 Ra3 74. Nb4 Rb3 75. Nc2 Rd3 76. Ne1 Ra3 77. Nf3 Be3 78. Kg3 Kf6 79. Rd5 Bg5 80. Kg4 Ra4+ 81. Rd4 Ra1 82. Nxg5 Rg1+ 83. Kh3 hxg5 84. Kh2 Ra1 85. Rd2 Kf5 86. Kg2 Ra4 87. Rb2 Kg4 88. Rc2 Kh4 89. Rb2 Ra3 90. Rb4+ g4 91. Rb2 Rg3+ 92. Kh2 Re3 93. Kg2 Re4 94. Ra2 Rb4 95. Rc2 Kg5 96. Rc8 Rb2+ 97. Kg3 Rb3+ 98. Kg2 Rb5 99. Rg8+ Kf4 100. Rf8+ Rf5 101. Rxf5+ Kxf5 102. Kg3 Kg5 103. Kg2 Kf4 104. Kf2 g3+ 105. Kg2 Kg4 106. Kg1 Kf3 107. Kh1 g2+ 108. Kg1 Kg3 1/2-1/2
2024.02.12 Baden-Baden Faschingsopen
638938 Koellner, Ruben Gideon (2465) Nied, Pascal (2099) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. Nbd2 cxd4 5. exd4 Qc7 6. c3 Nc6 7. h3 Bf5 8. Nh4 Bd7 9. Bd3 e5 10. dxe5 Qxe5+ 11. Be2 Bc5 12. Nhf3 Qc7 13. Nb3 Bd6 14. O-O h6 15. Nbd4 a6 16. Nxc6 bxc6 17. Bxa6 O-O 18. Bd3 c5 19. Re1 Rfb8 20. Nh4 Bh2+ 21. Kh1 Bf4 22. Nf5 Be6 23. Bxf4 Qxf4 24. Ne7+ Kf8 25. Rxe6 Rxb2 26. Re2 Rxe2 27. Qxe2 Re8 28. Nxd5 Nxd5 29. Qf3 Qxf3 30. gxf3 Nxc3 31. a4 Rd8 32. Bf1 Ke7 33. a5 Kd6 34. a6 Kc6 35. a7 Ra8 36. Bd3 c4 37. Bxc4 Nb5 38. Bxf7 Rxa7 39. Be8+ Kd5 40. Rd1+ Nd4 41. Kg2 Re7 42. Bc6+ Kc5 43. Be4 Ra7 44. Kg3 Ra2 45. Kf4 Ra3 46. h4 Ra7 47. Kg4 Re7 48. Kh5 Rf7 49. Kg6 Re7 50. Rb1 Ne6 51. Rb7 Nf8+ 52. Kf5 Rxb7 53. Bxb7 Kd6 54. h5 Ke7 55. Bd5 Kd6 56. Bf7 Ke7 57. Bb3 Kd6 58. f4 Ke7 59. Ba4 Kd6 60. Bb5 Ke7 61. Ke5 Nh7 62. Be2 Nf8 63. Bd1 Nd7+ 64. Kf5 Nf8 65. Ba4 Kd6 66. Bb5 Ke7 67. Ke5 Nh7 68. Bd3 Nf8 69. Bf5 Kf7 70. Bd3 Ke7 71. Bb5 1/2-1/2
2024.02.11 Baden-Baden Faschingsopen
638903 Metzinger, Hannes (2002) Koellner, Ruben Gideon (2465) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Ke8 7. f4 Bb4 8. Bd3 Nc6 9. Nf3 a6 10. fxe5 Nd7 11. Bf4 Nf8 12. O-O-O Bxc3 13. bxc3 Ng6 14. Bg3 Be6 15. Nd4 Ncxe5 16. Nxe6 fxe6 17. Be2 h5 18. h4 Ke7 19. Rd4 Raf8 20. Rhd1 Nf4 21. Bf1 Rh6 22. Be1 c5 23. R4d2 Rg6 24. g3 Nd5 25. exd5 Rxf1 26. Bf2 Rxd1+ 27. Rxd1 b6 28. Be3 exd5 29. Bf4 Nc4 30. Rxd5 Re6 31. Bg5+ Kf7 32. Rd7+ Kg6 33. Kd1 Rd6+ 34. Rxd6+ Nxd6 35. Bf4 Ne4 36. c4 Kf5 37. Bc7 Kg4 38. Bxb6 Kxg3 39. Bd8 Kf3 40. Be7 Ke3 41. Bf8 g6 42. Bh6+ Kf3 43. Bf8 g5 44. hxg5 h4 45. g6 h3 46. Bd6 Nxd6 47. g7 h2 48. g8=Q h1=Q+ 49. Kd2 Ne4+ 50. Kd3 Qd1# 0-1
2024.02.11 Baden-Baden Faschingsopen
638911 Koellner, Ruben Gideon (2465) Hartmann, Martin (2167) 1/2-1/2
1. d4 Nf6 2. Bg5 d5 3. Nd2 c5 4. dxc5 e6 5. e4 Bxc5 6. e5 Qb6 7. exf6 Bxf2+ 8. Ke2 gxf6 9. Nh3 Bd4 10. c3 fxg5 11. cxd4 Qxd4 12. Qc2 Nc6 13. Qc3 h6 14. Nf2 Bd7 15. Nf3 Qxc3 16. bxc3 Rc8 17. Kd2 Na5 18. h4 Ke7 19. hxg5 hxg5 20. Rxh8 Rxh8 21. Nxg5 Rg8 22. Nf3 f6 23. Rb1 b6 24. Rb4 e5 25. Nd1 Nb7 26. Ne3 Be6 27. Rh4 Rg7 28. Rh8 Nc5 29. Nh4 Ne4+ 30. Kc2 Ng3 31. Bb5 Kd6 32. Kb2 Kc5 33. Ba6 d4 34. cxd4+ Kxd4 35. Nc2+ Ke4 36. Rh6 Nf5 37. Rxf6 Nxh4 38. Rxe6 Nxg2 39. Re8 Nf4 40. Nb4 Rc7 41. Nc6 Ng6 42. Rc8 Rxc6 43. Bb7 Ne7 44. Re8 Kd4 45. Rxe7 Rh6 46. Rd7+ Kc4 47. Bd5+ Kc5 48. Bb3 Rh2+ 49. Ka3 a5 50. Rd5+ Kc6 51. Rxe5 b5 52. Bf7 Rh3+ 53. Kb2 Rh2+ 54. Kb1 Rh1+ 55. Kc2 Rh2+ 56. Kd3 Rh3+ 57. Ke4 Rh4+ 58. Kf5 Rb4 59. Be8+ Kb6 60. Re2 a4 61. Ke5 Rg4 62. Bd7 Rg7 63. Kd6 Rg1 64. Be6 Rd1+ 65. Bd5 Rg1 66. Re8 Rg6+ 67. Be6 Rh6 68. Rb8+ Ka5 69. a3 Rg6 70. Kd5 Rg3 71. Bd7 Rxa3 72. Rxb5+ Ka6 73. Rb4 Ka5 74. Rb5+ Ka6 75. Rb8 Ka5 76. Kc4 Ra1 77. Rb5+ Ka6 78. Rb8 Ka5 79. Bc6 Rc1+ 80. Kd5 Ra1 81. Kd6 Rd1+ 82. Kc7 Ra1 83. Rb5+ Ka6 84. Rh5 Rc1 85. Rh4 Ra1 86. Rh5 Rc1 87. Rh4 Ra1 88. Rb4 Ka5 89. Rb5+ Ka6 90. Rc5 Rb1 91. Bd5 Rb4 92. Bf3 Rb2 93. Bc6 Rb4 94. Bg2 Rb1 95. Rf5 Rc1+ 96. Bc6 Rc4 97. Rh5 Rc1 1/2-1/2
2024.02.10 Baden-Baden Faschingsopen
638874 Menzel, Maximilian (2103) Koellner, Ruben Gideon (2465) 0-1
1. d4 d5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Nbd7 5. O-O b5 6. a4 b4 7. c4 bxc3 8. Nxc3 a5 9. Ne5 Nxe5 10. dxe5 Nd7 11. e4 d4 12. Qxd4 Bc5 13. Qd1 Ba6 14. Nb5 O-O 15. Bg5 Qxg5 16. Qxd7 Qxe5 17. Rad1 Rab8 18. Kh1 Bxb5 19. axb5 Qxb2 20. Rb1 Qe5 21. f4 Qd6 22. Rfd1 Qb6 23. e5 a4 24. f5 exf5 25. Bc6 a3 26. Qxf5 Bd4 27. e6 fxe6 28. Qxe6+ Kh8 29. Rb4 Rbd8 30. Ra4 Qc5 31. Qe4 Bf6 32. Rxd8 Rxd8 33. Ra8 Rxa8 34. Bxa8 Qxb5 35. Kg2 a2 36. Bc6 Qe5 37. Qb4 Qb2+ 0-1
2024.02.10 Baden-Baden Faschingsopen
638886 Koellner, Ruben Gideon (2465) Zhang, Xiao (2189) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. Nbd2 e6 5. b3 Nbd7 6. Bb2 cxd4 7. exd4 Bd6 8. Bd3 O-O 9. O-O a5 10. a3 b6 11. Qe2 Bb7 12. Ne5 Qe7 13. f4 g6 14. Rf3 Nh5 15. g4 Ng7 16. Bb5 Nf6 17. Rf2 Rfc8 18. Bd3 Rc7 19. g5 Nfh5 20. Nf1 f6 21. gxf6 Qxf6 22. Qg4 Rf8 23. Ne3 Nf5 24. Nxf5 exf5 25. Qh3 Be7 26. Raf1 Qh4 27. Qxh4 Bxh4 28. Re2 Bf6 29. a4 Bg7 30. Ba3 Rd8 31. Rg2 Bh6 32. Rgf2 Nf6 33. h4 Nh5 34. Kg2 Kg7 35. Bc1 Kf8 36. Kf3 Bg7 37. Rg2 Bc8 38. Ba3+ Kg8 39. Ke3 Bxe5 40. dxe5 d4+ 41. Kd2 Be6 42. Bd6 Rc3 43. Rg5 Rdc8 44. Ba3 Rd8 45. Bb2 Rc7 46. Be2 d3 47. Bxd3 Rcd7 48. Ke3 Kf7 49. Ba3 Bxb3 50. Bd6 Be6 51. Bb5 Ra7 52. Rd1 Rc8 53. Rg2 Bc4 54. Rd4 Bxb5 55. axb5 Rc3+ 56. Kd2 Rf3 57. Ke2 Rh3 58. Kd2 Rd7 59. c4 Rxh4 60. Rf2 Ng3 61. Kc2 Ne4 62. Rf3 Ke6 63. Kd3 Nxd6 64. exd6 Rxd6 65. c5 bxc5 66. Rxd6+ Kxd6 67. Kc4 Rh1 68. Rd3+ Kc7 69. Kxc5 Rc1+ 70. Kd5 Kb6 71. Rh3 Rc7 72. Rb3 a4 73. Rb1 Rc5+ 74. Kd4 Rxb5 0-1
2024.02.09 Baden-Baden Faschingsopen
638862 Koellner, Ruben Gideon (2465) Goldinov, Daniel (1848) 1-0
1. d4 Nf6 2. Bg5 d5 3. Nd2 e6 4. e3 c5 5. c3 Nc6 6. Ngf3 h6 7. Bh4 Be7 8. Bd3 O-O 9. O-O cxd4 10. exd4 Bd7 11. Qe2 Rc8 12. Ne5 Nxe5 13. dxe5 Ne8 14. Bxe7 Qxe7 15. f4 Nc7 16. Nb3 a6 17. Nd4 Qc5 18. a4 b5 19. Rf3 bxa4 20. Rg3 Rfe8 21. Qg4 Qf8 22. f5 exf5 23. Bxf5 Ne6 24. Rf1 Rc4 25. Qh5 g5 26. Bxe6 Bxe6 27. Rf6 Rxd4 28. cxd4 Qb4 29. h4 Qxd4+ 30. Kh2 Rc8 31. Rxh6 Qxe5 32. Qxg5+ Qxg5 33. Rxg5+ 1-0
2024.02.06 Titled Tue 6th Feb Early
646555 Mushini, Ajay (2384) Koellner, Ruben Gideon (2465) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Be3 Qc7 9. a5 Nf8 10. a6 b5 11. Bd3 Ng6 12. Ne2 O-O 13. Ng3 Rb8 14. c3 Re8 15. Re1 Bf8 16. b4 Nf4 17. Bxf4 exf4 18. Nf1 Rb6 19. e5 dxe5 20. Nxe5 Rxa6 21. Qf3 Rxa1 22. Rxa1 Nd5 23. Be4 Be6 24. Nd2 Bd6 25. Nd3 Ra8 26. Nc5 a5 27. Bc2 Bxc5 28. bxc5 Re8 29. Be4 Nf6 30. Bc2 Bd5 31. Qd3 a4 32. f3 Re3 33. Qf1 Rxc3 34. Bb1 Re3 35. Qc1 Qa5 36. Qc2 Qc3 37. Nf1 Qxa1 38. Nxe3 fxe3 39. g3 Qxd4 40. Kf1 Bc4+ 41. Ke1 Qd2+ 42. Qxd2 exd2+ 43. Kxd2 a3 44. Kc3 a2 45. Bxa2 Bxa2 46. Kd4 Bd5 47. Ke5 Bxf3 48. Kd6 Bd5 49. Kc7 Ne4 50. Kb6 b4 51. Ka5 b3 52. Ka4 b2 53. Ka3 b1=Q 0-1
2024.02.06 Titled Tue 6th Feb Early
646837 Koellner, Ruben Gideon (2465) Juarez Flores, C (2300) 0-1
1. d4 d5 2. Nf3 Nf6 3. Nbd2 c5 4. e3 e6 5. c3 Nc6 6. Bd3 Bd6 7. O-O Bd7 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 a6 11. a3 b5 12. a4 Rb8 13. axb5 axb5 14. Qe2 O-O 15. Bxb5 e5 16. Ra6 Qc7 17. h3 Nxb4 18. Bxd7 Nxa6 19. Bb5 Qe7 20. c4 dxc4 21. Nxc4 Rxb5 22. Nxd6 Rxb2 23. Qxa6 Rfb8 24. Nf5 Qc5 25. Nh6+ Kf8 26. Nf5 h6 27. Rd1 Qc2 28. Qd6+ Kg8 29. Ne7+ Kh7 30. Rf1 Rb1 31. Rxb1 Rxb1+ 32. Kh2 e4 33. Nd4 Qxf2 34. Nef5 Qg1+ 35. Kg3 Rb2 36. Kf4 Qxg2 37. Ke5 Qh2+ 38. Ng3 Qxg3+ 39. Kf5 Qg5# 0-1
2024.02.06 Titled Tue 6th Feb Early
647163 Aadit, Bhatia (2169) Koellner, Ruben Gideon (2465) 0-1
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. O-O h6 8. Re1 Qc7 9. Bf1 Nf8 10. h3 g5 11. dxe5 dxe5 12. Nd2 Ng6 13. Nc4 g4 14. hxg4 Bxg4 15. f3 Be6 16. b3 h5 17. Ba3 h4 18. Bxe7 Kxe7 19. Qd2 Nf4 20. Rad1 Rad8 21. Qe3 b6 22. a5 Bxc4 23. Bxc4 Rdg8 24. b4 Rxg2+ 25. Kf1 N6h5 26. Ne2 Ng3+ 27. Nxg3 hxg3 0-1
2024.02.06 Titled Tue 6th Feb Early
647548 Koellner, Ruben Gideon (2465) Wilk, Igor (2228) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 Be7 5. Bd3 O-O 6. O-O b6 7. Ne5 Bb7 8. f4 Ne4 9. Qf3 f6 10. Ng4 Nxd2 11. Bxd2 Nd7 12. Qh3 f5 13. Ne5 Nxe5 14. fxe5 g6 15. g4 Kg7 16. gxf5 exf5 17. Kh1 Bc8 18. Qg2 Be6 19. Rf3 c5 20. Raf1 Qd7 21. c3 Rac8 22. Be1 cxd4 23. exd4 b5 24. Bd2 a5 25. a3 b4 26. axb4 axb4 27. cxb4 Rb8 28. Rh3 Rf7 29. Bg5 Bxg5 30. Qxg5 Rxb4 31. Rg1 Rxd4 32. Rxh7+ Kf8 33. Rh8+ 1-0
2024.02.06 Titled Tue 6th Feb Early
648090 Theodorou, Nikolas (2622) Koellner, Ruben Gideon (2465) 1-0
1. Nf3 d5 2. b3 Nd7 3. Bb2 c6 4. g3 Ngf6 5. Bg2 Qc7 6. d4 e6 7. O-O Bd6 8. c4 O-O 9. Nc3 Re8 10. Rc1 a6 11. Nd2 Qb8 12. e4 dxe4 13. Ndxe4 Nxe4 14. Nxe4 Bf8 15. d5 cxd5 16. cxd5 exd5 17. Qxd5 Nb6 18. Qd4 Nd7 19. Qd5 Ne5 20. Rxc8 Qxc8 21. Bxe5 Qf5 22. f4 Rac8 23. Ng5 Rc5 24. Qxb7 Re7 25. Be4 Qxg5 26. fxg5 Rxb7 27. Bxb7 Rxe5 28. Bxa6 Rxg5 29. Bc4 h5 30. Rxf7 Bc5+ 31. Kg2 Kh7 32. Bd3+ Kh6 33. Rf5 Rxf5 34. Bxf5 Ba3 35. Kf3 Kg5 36. Bd7 h4 37. gxh4+ Kxh4 38. h3 Kg5 39. Bg4 Kf6 40. Ke4 Ke7 41. Kd5 Kd8 42. Kc4 Kc7 43. b4 Kb6 44. Kb3 Bc1 45. a4 Bf4 46. a5+ Kb7 47. b5 Bd2 48. Bf3+ Kb8 49. Ka4 1-0
2024.02.06 Titled Tue 6th Feb Early
648203 Koellner, Ruben Gideon (2465) Benen, S (2326) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O c6 7. Bb3 Qc7 8. Qe2 e5 9. dxe5 dxe5 10. Rd1 Nbd7 11. c3 Nc5 12. Bc2 h6 13. a4 a5 14. b3 Rd8 15. Ba3 Ne6 16. Nc4 Nf4 17. Qe3 Ng4 18. Qb6 1-0
2024.02.06 Titled Tue 6th Feb Early
648661 Sahin, Sarp (2115) Koellner, Ruben Gideon (2465) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. Ba2 Nf8 10. dxe5 dxe5 11. Be3 Ng6 12. h3 O-O 13. Qd2 Kh8 14. Rad1 Nh7 15. Ne2 f5 16. exf5 Bxf5 17. Ng3 Bxh3 18. Qd3 Nf4 19. Bxf4 exf4 20. Ne4 Bg4 21. Ned2 Bc5 22. Ne5 Bh5 23. Qh3 Nf6 24. Ndf3 Rae8 25. Be6 Bd6 26. Nc4 Bb4 27. c3 Be7 28. Bd7 b5 29. Bxe8 Bg4 30. Qh4 Rxe8 31. Nfe5 Bxd1 32. Qxf4 Kg8 33. Qf5 Bh5 34. Qe6+ Kh8 35. g4 Bf8 0-1
2024.02.06 Titled Tue 6th Feb Early
649060 Kilic, Eray (2439) Koellner, Ruben Gideon (2465) 1-0
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 c6 6. g4 h6 7. Be3 b5 8. a3 Be7 9. d5 Bb7 10. g5 hxg5 11. Nxg5 cxd5 12. exd5 a6 13. Qf3 Rc8 14. Qg3 Nh5 15. Qg4 Ndf6 16. Qf5 g6 17. Qd3 Rxc3 18. bxc3 Bxd5 19. a4 Bc4 20. Qd2 Qc8 21. axb5 axb5 22. Bxc4 bxc4 23. Qe2 O-O 24. Ra7 Re8 25. Qf3 d5 26. Kf1 Qb8 27. Kg2 d4 28. Rb7 Qd8 29. cxd4 exd4 30. Rd1 d3 31. cxd3 cxd3 32. Rb3 Qd5 33. Rbxd3 Qxf3+ 34. Kxf3 Nh7 35. Nxh7 Kxh7 36. Rd7 Kg7 37. Rb7 Nf6 38. Bd4 Kf8 39. Rxe7 Kxe7 40. Bb2 Ke6 41. Ra1 Nh5 42. Ra6+ Kd7 43. Ra7+ Ke6 44. Ra5 Rb8 45. Be5 Rb3+ 46. Kg2 Rd3 47. Bb8 Rd5 48. Ra6+ Kf5 49. Ra7 f6 50. Ra4 g5 51. Rb4 Kg6 52. Bc7 Rc5 53. Rb7 Rd5 54. Bb8 Rc5 55. Rd7 Rc4 56. h3 Ng7 57. Rd6 Nf5 58. Rb6 Nh4+ 59. Kh2 Rc2 60. Bg3 Nf3+ 61. Kg2 Ne1+ 62. Kf1 Nf3 63. Kg2 Ne1+ 64. Kf1 Nf3 65. Ra6 Kf5 66. Ra5+ Ne5 67. Kg2 Re2 68. h4 gxh4 69. Bxh4 Rc2 70. Ra6 Rc6 71. Ra5 Ke6 72. Bg3 Kf5 73. f4 Rc2+ 74. Kh3 Re2 75. fxe5 fxe5 76. Ra8 Ke4 77. Kg4 Kd3 78. Rd8+ Ke4 79. Bxe5 Rg2+ 80. Bg3 Ra2 81. Re8+ Kd5 82. Kf5 Ra3 83. Bf4 Ra1 84. Rd8+ Kc4 85. Rd2 Kc3 86. Rd7 Kc4 87. Ke4 Ra6 88. Rc7+ 1-0
2024.02.06 Titled Tue 6th Feb Early
649085 Koellner, Ruben Gideon (2465) Parfenov, Vi (2193) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 d5 5. c3 Nbd7 6. Bd3 b6 7. Ne5 Bb7 8. f4 Bd6 9. Qf3 Qc7 10. O-O Nf8 11. g4 g6 12. g5 Nh5 13. Bb5+ Ke7 14. a4 a6 15. Bd3 Nd7 16. Qh3 Rag8 17. Ndf3 h6 18. gxh6 Rxh6 19. Ng5 Nf8 20. Nexf7 1-0
2024.02.06 Titled Tue 6th Feb Early
649549 Hayrapetyan, Ho (2432) Koellner, Ruben Gideon (2465) 1/2-1/2
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. g3 Ne4 6. Bg2 Nxc3 7. bxc3 Be4 8. O-O Bg7 9. Bh3 Bxf3 10. exf3 O-O 11. f4 c5 12. Rb1 Qc7 13. f5 Nc6 14. fxg6 hxg6 15. Be3 b6 16. Qg4 Na5 17. d5 Qb7 18. Rfc1 Qa6 19. Bf1 Qc8 20. Qe4 Re8 21. h4 e6 22. dxe6 Qxe6 23. Qxe6 fxe6 24. Rc2 Rad8 25. Rd1 Kf7 26. Rcd2 Be5 27. Bg5 Rd7 28. f4 Bxc3 29. Rxd6 Rxd6 30. Rxd6 Bf6 31. Rd7+ Re7 32. Rxe7+ Kxe7 33. Kf2 Kf7 34. Ke3 Bd4+ 35. Ke4 Nc6 36. g4 Bf6 37. h5 gxh5 38. gxh5 Nd4 39. h6 Kg6 40. Bh3 Bh8 41. a4 a6 42. Bf1 Nf5 43. Bd3 Nxh6 44. Bd8 Nf5 45. Bxb6 Bd4 46. a5 Kf6 47. Bc2 Nd6+ 48. Kd3 e5 49. fxe5+ Kxe5 50. Ba4 Ke6 51. Bc6 Ke7 52. Bc7 Ke6 53. Bb6 Ke7 54. Bd5 Kd7 55. Bf3 Ke6 56. Bg4+ Ke5 57. Bc7 Bb2 58. Bc8 Ba3 59. Bxa6 Ke6 60. Bb5 Nxb5 61. cxb5 Kd5 62. a6 c4+ 63. Kc3 Bc5 64. b6 Kc6 65. a7 Kb7 66. Kxc4 Bxb6 67. Bxb6 Ka8 68. Kb5 Kb7 69. Bc5 Ka8 70. Kc4 Kb7 71. Kd5 Ka8 72. Bd4 Kb7 73. Kc5 Ka8 74. Kb5 Kb7 75. Ka5 Ka8 76. Kb5 Kb7 77. Ka5 Ka8 78. Kb5 1/2-1/2
2024.02.06 Titled Tue 6th Feb Early
649655 Szpar, Milosz (2495) Koellner, Ruben Gideon (2465) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. O-O-O+ Nd7 8. f4 exf4 9. Nf3 h6 10. Bxf4 Ng4 11. Bg3 Bc5 12. Nd5 c6 13. Nc7 Nf2 14. Nxe6+ fxe6 15. Bxf2 Bxf2 16. Ne5 Ke8 17. Rxd7 Be3+ 18. Rd2 Rd8 19. Bd3 Rf8 20. Re1 Bf4 21. Ng6 Bxd2+ 22. Kxd2 Rf2+ 23. Re2 Rf1 24. a4 a5 25. b3 Kf7 26. Ne5+ Kf6 27. Ng4+ Ke7 28. Rf2 Rxf2+ 29. Nxf2 Rf8 30. Ke3 Kd6 31. Be2 e5 32. Bg4 b6 33. Nd3 Rf1 34. h4 Rh1 35. h5 Ra1 36. Nb2 b5 37. Kd2 Ra2 38. Kc1 Ra1+ 39. Kd2 Ra2 40. Nd1 bxa4 41. bxa4 Rxa4 42. Bf3 Ra1 43. Ne3 Kc5 44. Nf5 a4 45. Nxg7 a3 46. Kc3 Rb1 0-1
2024.02.06 Titled Tue 6th Feb Late
649892 Prieto Aranguren, A (2171) Koellner, Ruben Gideon (2465) 0-1
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. Ng5 Bg7 6. e4 Bg4 7. Be2 Bxe2 8. Qxe2 Nc6 9. Be3 e5 10. d5 Nd4 11. Qd2 h6 12. Nf3 Nxf3+ 13. gxf3 Nh5 14. O-O-O Qf6 15. Nb5 Qe7 16. c5 a6 17. cxd6 cxd6 18. Nc3 Qf6 19. Qe2 Nf4 20. Bxf4 Qxf4+ 21. Kb1 O-O 22. Rhg1 Qxh2 23. Rg3 Qh4 24. Rdg1 b5 25. Qf1 Rac8 26. Rh3 Qf4 27. Qe2 Rc7 28. Rg4 Qf6 29. Rgh4 h5 30. Qe3 Rfc8 31. a3 Rc5 32. Na2 a5 33. Nc3 Qe7 34. Rh1 Bf6 35. R4h2 Bg5 36. Qe2 b4 37. Na4 Rc1+ 38. Rxc1 Rxc1+ 39. Ka2 Bf4 40. Rg2 Qb7 41. Qd3 h4 42. Rg4 b3+ 0-1
2024.02.06 Titled Tue 6th Feb Late
650135 Koellner, Ruben Gideon (2465) Taranenko, Evgueniy (2201) 1-0
1. d4 f5 2. Bg5 g6 3. Nc3 d5 4. e3 c6 5. h4 h6 6. Bf4 Bg7 7. Nf3 Nd7 8. Bd3 Ngf6 9. Ne5 Nxe5 10. Bxe5 Be6 11. Qf3 Qd7 12. Ne2 O-O-O 13. Nf4 Bf7 14. h5 g5 15. Ng6 Bxg6 16. hxg6 e6 17. Bxf6 Bxf6 18. g4 f4 19. c3 c5 20. dxc5 Qc7 21. O-O-O Qxc5 22. exf4 gxf4 23. Kb1 e5 24. Rh5 Bg5 25. Bf5+ Kb8 26. Be6 e4 27. Qe2 f3 28. Qc2 Rhe8 29. Bf7 Re7 30. Qb3 Qxf2 31. Bxd5 e3 32. Bxf3 Red7 33. Rxd7 Rxd7 34. Qg8+ Rd8 35. Qf7 e2 36. Qxb7# 1-0
2024.02.06 Titled Tue 6th Feb Late
650350 Deac, Bogdan-Daniel (2690) Koellner, Ruben Gideon (2465) 1-0
1. d4 d6 2. Nf3 Nf6 3. Nc3 Nbd7 4. e4 e5 5. Rg1 c6 6. a4 h6 7. g4 exd4 8. Nxd4 Ne5 9. h3 d5 10. exd5 Nxd5 11. Qe2 Bd6 12. Nxd5 cxd5 13. f4 O-O 14. fxe5 Bxe5 15. Qxe5 Re8 16. Qxe8+ Qxe8+ 17. Kf2 Qe5 18. Be3 Bd7 19. Rg3 Re8 20. Bd3 a6 21. c3 Qf6+ 22. Rf3 Qh4+ 23. Kg2 g6 24. Raf1 Rf8 25. Bxg6 Kg7 26. Nf5+ Bxf5 27. Bxf5 f6 28. Bd4 Qg5 29. Bd3 Qd2+ 30. R1f2 Qc1 31. Bxf6+ Kg8 32. Bg5 hxg5 33. Rxf8+ Kg7 34. R2f7+ Kh6 35. Rh8# 1-0
2024.02.06 Titled Tue 6th Feb Late
650706 Koellner, Ruben Gideon (2465) Carnicelli, V (2427) 1/2-1/2
1. d4 Nf6 2. Nf3 c5 3. e3 e6 4. Nbd2 d5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 a5 11. a3 h6 12. e4 Re8 13. Qe2 Qc7 14. Rad1 Ne5 15. Nxe5 Bxe5 16. Nf3 dxe4 17. Bxe4 Nxe4 18. Qxe4 Bf6 19. b5 a4 20. Qb4 b6 21. Qd6 Ra7 22. Qxc7 Rxc7 23. Rd6 Rb7 24. Rfd1 Be7 25. R6d4 Ra7 26. c4 Bc5 27. Rd8 Rf8 28. Rxf8+ Bxf8 29. Rd8 Ra8 30. Ne5 Bb7 31. Rxa8 Bxa8 32. Nd7 Be4 33. Nxb6 Bd3 34. h3 f6 35. Nxa4 Bxc4 36. b6 Bd5 37. Nc3 Bc6 38. a4 Bb4 39. Kf1 Ba5 40. Nb5 Bxb6 41. f3 e5 42. Ke2 Kf7 43. Kd3 Ke6 44. Kc4 h5 45. Bc3 h4 46. a5 Bd8 47. a6 Bb6 48. Bb4 g5 49. Bc5 Bxc5 50. Kxc5 Kd7 51. Nc3 f5 52. Nd5 e4 53. fxe4 fxe4 54. Nb4 Ba8 55. Kd4 Kc7 56. Na2 Kb6 57. Nc3 e3 58. Kxe3 Bxg2 59. Ne4 g4 60. hxg4 h3 61. Ng3 h2 62. g5 h1=Q 63. Nxh1 Bxh1 64. Kd4 Bf3 65. g6 Bh5 66. g7 Bf7 67. a7 Kxa7 68. Ke5 Bg8 69. Kd6 Kb6 70. Ke7 Kc7 71. Kf8 Be6 72. Ke7 Bd5 73. Kf6 Bc4 74. Ke7 Kc8 75. Ke8 Kc7 76. Kf8 Kd7 77. g8=Q Bxg8 1/2-1/2
2024.02.06 Titled Tue 6th Feb Late
650919 Ismayil, Malak (2200) Koellner, Ruben Gideon (2465) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. f4 exf4 8. e5 h6 9. Bxf4 Nh5 10. Be3 g5 11. Be2 Nf4 12. Bf3 c6 13. Bxf4 gxf4 14. Nge2 Nd7 15. Nxf4 Nxe5 16. O-O-O+ Kc7 17. Nxe6+ fxe6 18. Rde1 Nxf3 19. gxf3 Re8 20. Rhg1 Rh7 21. Rg6 Rf7 22. Rgxe6 Rxe6 23. Rxe6 Rxf3 24. Ne4 Rf1+ 25. Kd2 Rh1 26. Rf6 Rxh2+ 27. Kd3 Rh3+ 28. Kd2 Be7 29. Rf7 Kd8 30. Rh7 h5 31. a4 h4 32. b3 Rh2+ 33. Kd3 Rg2 34. Nd2 Rg3+ 35. Ke4 Rc3 36. Nf3 Rxc2 37. Nd4 Rc1 38. Nf5 Re1+ 39. Kf4 Rf1+ 40. Ke4 Bg5 41. Rxb7 Re1+ 42. Kf3 a5 43. Rh7 Rb1 44. Kg4 Bd2 45. Nd4 c5 46. Nc6+ Ke8 47. Re7+ Kf8 48. Rd7 Bb4 49. Rd3 Be1 50. Ne5 Rc1 51. Nf3 Bg3 52. Nxh4 Bxh4 53. Kxh4 Ke7 54. Kg3 Rf1 55. Kg2 Rf4 56. Kg3 Rf5 57. Kg4 Rf1 58. Kg3 Ke6 59. Kg2 Rf4 60. Kg3 Rf5 61. Rd8 Rf1 62. Ra8 Rb1 63. Rxa5 Rxb3+ 64. Kf4 Kd5 65. Ra8 Kd4 66. a5 Ra3 67. a6 c4 68. a7 Kc3 69. Ke5 Ra5+ 70. Kd6 Kd3 71. Kc6 Kc2 72. Kb6 Ra1 73. Rc8 c3 74. a8=Q Rxa8 75. Rxa8 Kb2 76. Rc8 c2 77. Ka5 c1=Q 78. Rxc1 Kxc1 1/2-1/2
2024.02.06 Titled Tue 6th Feb Late
650965 Koellner, Ruben Gideon (2465) Bettalli, Francesco (2300) 0-1
1. d4 Nf6 2. Nf3 c5 3. e3 d5 4. c3 Nc6 5. Nbd2 e6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Be7 10. Bb2 a6 11. a3 e5 12. e4 Bg4 13. h3 Bh5 14. exd5 Qxd5 15. Qc2 Rad8 16. Bc4 Qd7 17. Rfe1 Bg6 18. Qb3 b5 19. Bf1 e4 20. Nd4 Nxd4 21. cxd4 Rfe8 22. a4 bxa4 23. Rxa4 Rb8 24. Bxa6 Nd5 25. b5 Bg5 26. Nc4 f6 27. Ne3 Bf7 28. Nxd5 Bxd5 29. Qg3 Rxb5 30. Bxb5 Qxb5 31. Qa3 Bd2 32. Rd1 e3 33. fxe3 Qe2 34. Rxd2 Qxd2 35. e4 Bxe4 36. Qb3+ Kh8 37. Qg3 Qxb2 38. Ra7 Qxd4+ 39. Qf2 Qxf2+ 40. Kxf2 h5 41. h4 Kh7 42. Ra5 Kh6 43. g3 Re5 44. Ra6 Bf5 45. Kf3 Bg4+ 46. Kf4 Rf5+ 47. Ke4 Rf3 48. Ra8 Rxg3 49. Kf4 Rf3+ 50. Ke4 Kg6 51. Ra5 Rh3 52. Kf4 Rxh4 53. Kg3 Rh3+ 54. Kf4 Rf3+ 55. Ke4 h4 56. Ra1 h3 57. Rg1 f5+ 58. Ke5 h2 59. Rh1 Rh3 60. Kf4 Bf3 61. Rg1+ hxg1=Q 62. Ke5 Qe3+ 63. Kd6 Qd4+ 64. Kc7 Qc5+ 65. Kb8 Qb6+ 66. Kc8 Qc6+ 67. Kd8 Qd6+ 68. Ke8 Rh8# 0-1
2024.01.30 Titled Tue 30th Jan Late
659054 Koellner, Ruben Gideon (2465) Pourkashiyan, A (2270) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 Bd7 11. a3 Rc8 12. c4 a6 13. Rc1 Qe7 14. Qe2 Rfd8 15. Rfd1 h6 16. g3 e5 17. cxd5 Nxd5 18. Ne4 Bg4 19. Nxd6 Rxd6 20. e4 Rf6 21. exd5 Bxf3 22. Qe3 Bxd5 23. Be4 Bxe4 24. Qxe4 Re8 25. Rd5 Rd6 26. Rcd1 Rxd5 27. Rxd5 Qe6 28. b5 axb5 29. Rxb5 Qd7 30. h4 Re7 31. a4 Qd1+ 32. Kg2 Qd7 33. a5 Qe6 34. Rb6 f5 35. Qc2 Qd5+ 36. Kh2 Rc7 37. Qxf5 Qf7 38. Qxf7+ Kxf7 39. a6 bxa6 40. Rxa6 Nd4 41. Bxd4 exd4 42. Rd6 Rc4 43. Rd7+ Kf6 44. Kg2 g6 45. Rd6+ Kf7 46. Kf3 h5 47. Ke4 Rc2 48. Kf3 Rc3+ 49. Kf4 Rc2 50. f3 Rd2 51. Ke4 Rg2 52. Kf4 Rd2 53. Kg5 Rg2 54. g4 hxg4 55. fxg4 Rd2 56. Rxg6 d3 57. Rd6 Rd1 58. h5 Ke7 59. Rd4 Ke6 60. Kg6 Ke5 61. Rd8 Ke4 62. g5 Ra1 63. h6 Ra6+ 64. Kh5 Ra5 65. h7 Ra1 66. h8=Q Rh1+ 67. Kg6 Rxh8 68. Rxh8 d2 69. Rd8 Ke3 70. Kf6 1-0
2024.01.30 Titled Tue 30th Jan Late
659234 Miszler, Levente (2269) Koellner, Ruben Gideon (2465) 1/2-1/2
1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 c5 7. Ne5 Qc8 8. O-O Nc6 9. Nxd7 Qxd7 10. b3 Be7 11. Bb2 O-O 12. e3 Rfd8 13. Rd1 Rac8 14. d3 Nd5 15. a3 Na5 16. Qc2 Qb5 17. Nd2 Nf6 18. Bf1 Qd7 19. Nc4 Nc6 20. Rac1 b5 21. Nd2 a6 22. Qb1 Bf8 23. Qa1 Nd5 24. Ne4 Na5 25. Qa2 f5 26. Nc3 Qf7 27. e4 Nf6 28. e5 Nd5 29. Nxd5 Rxd5 30. Bg2 Rdd8 31. d4 cxd4 32. Rxc8 Rxc8 33. Bxd4 Qe7 34. b4 Nc4 35. Bc5 Qc7 36. Bxf8 Rxf8 37. a4 Qxe5 38. axb5 axb5 39. Qa7 h6 40. Rd7 Kh8 41. Bf1 f4 42. Qc5 Qxc5 43. bxc5 fxg3 44. hxg3 Rc8 45. Re7 Rxc5 46. Rxe6 Kg8 47. Re8+ Kf7 48. Rb8 Kf6 49. Rb7 h5 50. Kg2 g5 51. Be2 g4 52. Bd3 Nd6 53. Rb6 Ke5 54. Kf1 Rc1+ 55. Ke2 Rc5 56. Rb8 Kd4 57. Rd8 Re5+ 58. Kd2 Rd5 59. Kc2 Nc4 60. Rxd5+ Kxd5 61. Bg6 Ne5 62. Bxh5 Ke4 63. Kc3 Kf3 64. Kb4 Kxf2 65. Kxb5 Kxg3 66. Bxg4 1/2-1/2
2024.01.30 Titled Tue 30th Jan Late
659514 Koellner, Ruben Gideon (2465) Ozen, Metehan (2160) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 b6 5. c3 Bb7 6. Bd3 cxd4 7. exd4 Be7 8. O-O O-O 9. Qe2 d6 10. Re1 Nbd7 11. Ne4 Nxe4 12. Bxe4 Bxe4 13. Qxe4 Nf6 14. Qe2 Qc7 15. a4 a6 16. Bf4 Qb7 17. Bg5 Nd5 18. Bxe7 Qxe7 19. Qe4 Nf6 20. Qh4 Qb7 21. Re3 b5 22. a5 Rac8 23. Ng5 h6 24. Nf3 b4 25. Qg3 bxc3 26. bxc3 Qb2 27. Rae1 Rfd8 28. h3 Rxc3 29. Nh2 Rxe3 30. fxe3 Ne4 31. Qf4 d5 32. Rf1 Rf8 33. Ng4 Qb8 34. Ne5 f6 35. Ng6 Qxf4 36. Nxf4 Kf7 37. Rc1 Re8 38. Rc6 g5 39. Nd3 Ra8 40. Nb4 Nd2 41. Nxa6 Nc4 42. Rc7+ Kg6 43. Nc5 Rxa5 44. Nxe6 Kf5 45. Nc5 Nxe3 46. Kf2 Nc4 47. Re7 Ra2+ 48. Kf3 Ra3+ 49. Kf2 Ra2+ 50. Kg1 Rd2 51. Ne6 h5 52. Ng7+ Kg6 53. g4 hxg4 54. hxg4 Rxd4 55. Kf2 Rxg4 56. Ne6 Re4 57. Nf8+ Kf5 58. Rd7 d4 59. Rd5+ Ne5 60. Nh7 g4 61. Rd6 Rf4+ 62. Kg2 Kg6 63. Nf8+ Kf7 64. Nd7 Nxd7 65. Rxd7+ Ke6 66. Rd8 Ke5 67. Re8+ Kf5 68. Kg3 Rf3+ 69. Kg2 d3 70. Rd8 Kf4 71. Rd4+ Kg5 72. Rd5+ f5 73. Rd8 Kf4 74. Rd4+ Ke5 75. Rd8 Re3 76. Re8+ Kf4 77. Rd8 Re2+ 78. Kf1 Re3 79. Kf2 Rf3+ 80. Kg2 g3 81. Rd4+ Ke3 82. Rd8 Ke4 83. Re8+ Kf4 84. Rd8 Rf2+ 85. Kg1 d2 86. Rd3 Re2 87. Kf1 Re1+ 88. Kg2 d1=Q 89. Rxd1 Rxd1 90. Kh3 Rd2 91. Kh4 Rh2# 0-1
2024.01.30 Titled Tue 30th Jan Late
659560 Santos Flores, A (2183) Koellner, Ruben Gideon (2465) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. h3 Qc7 9. Re1 Nf8 10. Be3 g5 11. Nd2 Ng6 12. Nf1 g4 13. hxg4 Bxg4 14. f3 Be6 15. Bxe6 fxe6 16. dxe5 dxe5 17. a5 h5 18. Na4 h4 19. Nc5 Kf7 20. Qe2 Nh5 21. Qc4 Ngf4 22. Nh2 Rag8 23. Ng4 h3 24. g3 Nxg3 25. Bxf4 Bxc5+ 26. Qxc5 exf4 27. Rad1 h2+ 28. Kg2 h1=Q+ 29. Rxh1 Nxh1 30. Rxh1 Rxh1 31. Kxh1 Qe7 32. Qh5+ Kf8 33. e5 Qg7 0-1
2024.01.30 Titled Tue 30th Jan Late
659856 Koellner, Ruben Gideon (2465) Dragomirescu, R (2347) 0-1
1. d4 d5 2. Nf3 Nf6 3. Nbd2 Bf5 4. e3 c6 5. Ne5 e6 6. g4 Be4 7. f3 Bg6 8. h4 h6 9. Nxg6 fxg6 10. Bd3 Kf7 11. f4 Bd6 12. g5 Nh5 13. Qg4 Nd7 14. Nf3 Rg8 15. Bxg6+ Kxg6 16. Qxe6+ Kh7 17. Qxd6 Ng3 18. Rg1 Ne4 19. Qa3 c5 20. Qd3 c4 21. Qe2 Qe7 22. Bd2 b5 23. a3 a5 24. c3 Rae8 25. Kf1 Nxd2+ 26. Qxd2 Qxe3 27. Qxe3 Rxe3 28. Kf2 Re4 29. Rg4 Rf8 30. Kg3 Re2 31. Re1 Rfe8 32. Rxe2 Rxe2 33. Ne5 Nxe5 34. dxe5 Rxb2 35. f5 Re2 36. e6 b4 37. axb4 axb4 38. cxb4 c3 39. Kf3 c2 40. Rg1 Re5 41. Kf4 Re4+ 42. Kf3 Rxb4 43. f6 hxg5 44. hxg5 Rb1 45. g6+ Kh6 0-1
2024.01.23 Titled Tue 23rd Jan Late
667776 Koellner, Ruben Gideon (2482) Gong, Daniel Hanwen (2319) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O c6 7. Bb3 a5 8. a4 Nbd7 9. e5 dxe5 10. dxe5 Nd5 11. e6 fxe6 12. Ne4 N7f6 13. Qe2 Nxe4 14. Qxe4 e5 15. Nxe5 Bf5 16. Qe2 Kh8 17. Re1 Qd6 18. Nc4 Qf6 19. Bd2 Rae8 20. Ne5 b6 21. h3 Bc8 22. Rad1 Bb7 23. Nd7 Qxb2 24. Nxf8 Rxf8 25. Bxd5 cxd5 26. Qxe7 Bc6 27. Rb1 Qxc2 28. Be3 Qf5 29. Rxb6 Bxa4 30. Rb7 Qf6 31. Qxf6 Bxf6 32. Bh6 Rd8 33. Re6 Bc3 34. Rd6 Re8 35. g3 d4 36. Bg7+ Kg8 37. Bxd4 Bxd4 38. Rxd4 Bc6 39. Rb1 a4 40. Rbd1 a3 41. Rd8 a2 42. Rxe8+ Bxe8 43. Kf1 Bb5+ 44. Ke1 Bd3 45. Ra1 Bc4 46. Kd2 Kf7 47. Kc3 Bd5 48. Kb2 Be6 49. Rxa2 Bxh3 50. Kc3 Kf6 51. Ra5 Bf5 52. Kd4 Kg5 53. f3 h5 54. Ke3 Kf6 55. Kf4 g5+ 56. Ke3 h4 57. gxh4 gxh4 58. Kf4 Be6 59. Rh5 h3 60. Rh6+ Ke7 61. Ke5 Bc8 62. f4 Kf7 63. f5 Kg7 64. Rxh3 Kf7 65. Rc3 Ba6 66. Rc7+ Kf8 67. Kf6 Ke8 68. Kg7 Kd8 69. Ra7 Bc4 70. f6 1-0
2024.01.23 Titled Tue 23rd Jan Late
667998 Grot, Blazej (2102) Koellner, Ruben Gideon (2482) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. g4 d5 6. dxe5 Nxe4 7. Qxd5 Nxc3 8. bxc3 c6 9. Qd1 Qa5 10. Qd4 Bc5 11. Qd3 Qb6 12. Qe2 O-O 13. Bg2 Re8 14. O-O Qc7 15. Bf4 Nb6 16. Nd4 Nd5 17. Bxd5 cxd5 18. Bg3 Qa5 19. Qf3 Be6 20. Nxe6 fxe6 21. Rab1 b6 22. Qd3 Qxa2 23. Ra1 Qc4 24. Qxc4 dxc4 25. Rfd1 a5 26. Kf1 Red8 27. Ke2 g5 28. h4 h6 29. hxg5 hxg5 30. f4 gxf4 31. Bxf4 Rxd1 32. Rxd1 a4 33. Ra1 a3 34. Be3 Bxe3 35. Kxe3 Kg7 36. Kd4 Ra4 37. Ke4 Kg6 38. Kf4 Ra5 39. Ra2 Kf7 40. Ke4 Kg7 41. Kd4 Ra4 42. Ke4 Kg6 43. Kf4 Ra5 44. Ke4 Kg5 45. Kf3 Ra8 46. Kg3 Ra7 47. Kf3 Rf7+ 48. Kg3 Rf4 49. Rxa3 Rxg4+ 50. Kf3 Kf5 51. Ra6 Rf4+ 52. Kg3 Re4 53. Rxb6 Re3+ 54. Kf2 Rxc3 55. Rb2 Kxe5 56. Ke2 Kd4 57. Kd2 Rh3 58. Rb6 Rh2+ 59. Ke1 e5 60. Rd6+ Kc3 61. Re6 Rh5 62. Kd1 Rh1+ 63. Ke2 Rh2+ 64. Ke3 Rh5 65. Rc6 Rh3+ 66. Ke2 Rh2+ 67. Kd1 Rd2+ 68. Ke1 Rxc2 69. Rc5 e4 70. Re5 Kd4 71. Re8 Rh2 72. Rd8+ Ke3 73. Kd1 c3 74. Kc1 Rd2 0-1
2024.01.23 Titled Tue 23rd Jan Late
668083 Alekseenko, K (2650) Koellner, Ruben Gideon (2482) 1-0
1. e4 d6 2. Bc4 Nf6 3. d3 e5 4. Bb3 Be7 5. Nf3 O-O 6. O-O c6 7. c3 Nbd7 8. Re1 h6 9. Nbd2 Re8 10. Nf1 Nf8 11. Ng3 Ng6 12. h3 Bf8 13. d4 a5 14. a4 Be6 15. Bc2 Qc7 16. Be3 Rad8 17. Qd2 d5 18. exd5 Nxd5 19. Bxg6 Nxe3 20. Rxe3 exd4 21. Bxf7+ Qxf7 22. cxd4 Bb4 23. Qc2 Bd5 24. Ne5 Qf4 25. Rd1 c5 26. Nd3 Qg5 27. Rxe8+ Rxe8 28. dxc5 Bc6 29. Nxb4 axb4 30. Qc4+ Kh7 31. Qxb4 Qf6 32. b3 Rf8 33. Qd2 Rf7 34. Qc2+ Kh8 35. b4 1-0
2024.01.23 Titled Tue 23rd Jan Late
668311 Koellner, Ruben Gideon (2482) Martins, Bruno Andre Leite (2347) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 d5 5. c3 Bd6 6. Bd3 O-O 7. O-O Nc6 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 Qe7 11. a3 e5 12. c4 e4 13. Bxf6 Qxf6 14. Bxe4 dxe4 15. Nxe4 Bxh2+ 16. Nxh2 Qe6 17. Nd6 Rd8 18. c5 b6 19. Qf3 Bd7 20. Rfd1 bxc5 21. bxc5 Ne5 22. Qe4 Bc6 23. Qf4 Qg6 24. e4 Qe6 25. Nf3 Nxf3+ 26. Qxf3 Rab8 27. Rac1 h6 28. Qf5 Qxf5 29. exf5 Kf8 30. Rc3 Ke7 31. Re1+ Kf6 32. f3 Rb2 33. Kh2 h5 34. Kg3 h4+ 35. Kh2 Rh8 36. Kh3 g6 37. fxg6 Bd7+ 38. g4 hxg3+ 39. Kxg3 Rg8 40. Kf4 fxg6 41. Ne4+ Kg7 42. Rd1 Rf8+ 43. Ke3 Bc6 44. Rd6 Bxe4 45. fxe4 Rff2 46. c6 Rfe2+ 47. Kf4 Rf2+ 48. Ke5 Rb5+ 49. Rd5 Rb8 50. c7 Rc8 51. Rd8 1-0
2024.01.23 Titled Tue 23rd Jan Late
668543 Kamsky, G (2623) Koellner, Ruben Gideon (2482) 1-0
1. d4 d6 2. Nf3 Nf6 3. Bf4 g6 4. h3 Bg7 5. c3 O-O 6. Nbd2 Nc6 7. e4 Re8 8. Be2 e5 9. dxe5 Nxe5 10. Nxe5 dxe5 11. Bg5 Be6 12. O-O c6 13. Qc2 Qc7 14. Bc4 h6 15. Be3 Rad8 16. Bxe6 Rxe6 17. a4 b6 18. Nc4 Re7 19. Rfd1 Red7 20. Rxd7 Rxd7 21. b4 Kh7 22. a5 b5 23. Nd2 a6 24. Nb3 Bf8 25. f3 Qd8 26. Bb6 Qc8 27. Bc5 Bg7 28. Rd1 Rxd1+ 29. Qxd1 Qd7 30. Qd6 Qxd6 31. Bxd6 Nd7 32. Kf2 Kg8 33. Ke3 Bf8 34. Bxf8 Kxf8 35. g3 Ke7 36. f4 f6 37. h4 Kd6 38. f5 gxf5 39. exf5 Kd5 40. Nd2 c5 41. g4 cxb4 42. cxb4 Nb8 43. Ne4 Nd7 44. Kd3 Kc6 45. Nc3 Kd6 46. Ke4 Nb8 47. Nd5 Nd7 48. Nc3 Nb8 49. Kd3 Nd7 50. Ke3 Kc6 51. Ke4 Kc7 52. Kd5 Kd8 53. Ke6 Ke8 54. Ne4 Kd8 55. g5 fxg5 56. hxg5 1-0
2024.01.23 Titled Tue 23rd Jan Late
668753 Koellner, Ruben Gideon (2482) Shapiro, V (2113) 1-0
1. d4 Nf6 2. Nf3 c5 3. e3 g6 4. Nbd2 cxd4 5. exd4 Bg7 6. c3 O-O 7. Bd3 b6 8. O-O Bb7 9. Re1 d6 10. Qe2 e6 11. a4 a6 12. Nf1 Nbd7 13. Ng3 Re8 14. h4 h5 15. Bg5 Qc7 16. Rad1 e5 17. dxe5 dxe5 18. Bxf6 Nxf6 19. Ne4 Nd5 20. g3 f5 21. Bc4 Rad8 22. Neg5 e4 23. Nd4 e3 24. Nde6 exf2+ 25. Kxf2 Qc8 26. Qd3 Rd6 27. Nf4 Qc5+ 28. Kf1 Rxe1+ 29. Rxe1 b5 30. axb5 axb5 31. Re8+ Bf8 32. Rxf8+ Kxf8 33. Nge6+ Ke7 34. Nxc5 Nxf4 35. gxf4 Rxd3 36. Bxd3 Bd5 37. Bxb5 Kd6 38. Nd3 Be4 39. Ne5 Ke6 40. Nxg6 Kf6 41. Ne5 Bc2 42. Kf2 Ke6 43. Be2 Kd5 44. Ke3 Bb3 45. Bxh5 Kc5 46. Bf3 Kd6 47. h5 Ke7 48. h6 Kf6 49. Bh5 Bg8 50. Bg6 Bb3 51. c4 Ba4 52. c5 Bb3 53. h7 Kg7 54. c6 Be6 55. c7 Bc8 56. b4 Kh8 57. Nf7+ Kg7 58. h8=Q+ Kxg6 59. Ne5# 1-0
2024.01.23 Titled Tue 23rd Jan Late
668862 Koellner, Ruben Gideon (2482) Lazavik, Denis (2566) 0-1
1. d4 f5 2. Bg5 h6 3. Bh4 g5 4. Bg3 Bg7 5. e3 c5 6. c3 Qb6 7. Nd2 d5 8. h4 g4 9. Ne2 Nf6 10. h5 O-O 11. Qb3 Be6 12. Nf4 Bf7 13. dxc5 Qxc5 14. Qxb7 Nbd7 15. Qb5 Qc8 16. Qa6 Qb8 17. Ne6 Qxb2 18. Rb1 Qxc3 19. Nxf8 Rxf8 20. Qd3 Ne4 21. Be2 Ndc5 22. Qxc3 Bxc3 23. Rd1 Rb8 24. Bxb8 Nxd2 25. Rxd2 Ne4 26. Bxa7 Nxd2 27. Kd1 Ne4 28. Kc2 Ba5 29. f3 Ng3 30. Rh4 Nxe2 31. fxg4 d4 32. exd4 f4 33. a4 Bd5 0-1
2024.01.23 Titled Tue 23rd Jan Late
669011 Biletskyy, Dmytro (1926) Koellner, Ruben Gideon (2482) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. h3 Qc7 9. Be3 Nf8 10. Qe2 g5 11. Nd2 Ng6 12. Rfd1 Nf4 13. Qf1 Rg8 14. Bb3 g4 15. h4 g3 16. fxg3 N4h5 17. dxe5 dxe5 18. Nc4 Be6 19. Bf2 Ng4 20. Qe2 Nxf2 21. Qxh5 Nxd1 22. Rxd1 Bg4 23. Nd6+ Bxd6 24. Qxh6 Bxd1 25. Be6 fxe6 26. Qxe6+ Kf8 27. Nxd1 Qe7 28. Qh6+ Ke8 29. Ne3 Bc5 30. Kh2 Bxe3 31. Qxe3 Kd7 32. Qd3+ Qd6 33. Qb3 Kc7 34. a5 Rgf8 35. h5 Rf6 36. g4 Qe6 37. g5 Qxb3 38. cxb3 Rf2 39. Kg3 Rf4 40. g6 Rg8 41. Kh3 Kd6 42. g4 Ke6 43. Kh4 Kf6 44. b4 Rxe4 45. b3 Rxb4 46. Kg3 Kg5 47. Kf3 0-1
2024.01.23 Titled Tue 23rd Jan Late
669103 Koellner, Ruben Gideon (2482) Grinev, V (2422) 1-0
1. d4 c5 2. e3 Nf6 3. Nf3 cxd4 4. exd4 g6 5. c3 Bg7 6. Nbd2 O-O 7. Bd3 d5 8. O-O Nc6 9. Re1 Bg4 10. h3 Bxf3 11. Nxf3 e6 12. Bg5 Qb6 13. Qe2 Rac8 14. h4 h5 15. Ne5 Nxe5 16. dxe5 Ng4 17. Bf4 d4 18. c4 Rfd8 19. Rad1 Qa5 20. a3 Qb6 21. b4 a5 22. c5 Qc7 23. f3 Ne3 24. Bxe3 dxe3 25. Qxe3 axb4 26. axb4 Rd5 27. f4 Rcd8 28. Be2 Bh6 29. Bf3 Rxd1 30. Rxd1 Rxd1+ 31. Bxd1 Qd7 32. Bf3 Qa4 33. Qd4 Qa3 34. Kh2 Qc1 35. g3 Qc2+ 36. Kh3 Qf5+ 37. Kg2 Qc2+ 38. Qf2 Qf5 39. Bxb7 Qc2 40. Qxc2 1-0
2024.01.23 Titled Tue 23rd Jan Late
669254 Dau Khuong Duy (2309) Koellner, Ruben Gideon (2482) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. dxe5 dxe5 9. a5 Qc7 10. Qe2 Nf8 11. Rd1 Ng6 12. h3 O-O 13. Be3 Nh5 14. Qf1 Nhf4 15. Kh2 Kh8 16. Ng1 f5 17. g3 fxe4 18. Nxe4 Nd5 19. Qe2 Bf5 20. Bd3 Nxe3 21. Qxe3 Bb4 22. a6 b6 23. Nf3 Rae8 24. c3 Be7 25. Kg2 Qc8 26. Ng1 Rf7 27. Re1 Ref8 28. Re2 c5 29. Bc4 Be6 30. Bxe6 Qxe6 31. Qd3 c4 32. Qc2 Qc6 33. Kh2 Rf5 34. Rf1 b5 35. Ra1 Bc5 36. Qd2 Qb6 37. Rf1 Be7 38. Qd7 Qxa6 39. Rd2 R5f7 40. Qg4 Qc6 41. h4 Kh7 42. Nh3 Rf5 43. h5 1-0
2024.01.23 Titled Tue 23rd Jan Late
669445 Koellner, Ruben Gideon (2482) Tan, Ralph (2016) 1/2-1/2
1. d4 d5 2. Nf3 e6 3. e3 Be7 4. Nbd2 Nf6 5. Bd3 O-O 6. O-O Nbd7 7. Ne5 c5 8. c3 Bd6 9. f4 b6 10. Qf3 Bb7 11. g4 cxd4 12. exd4 Ne4 13. Nxe4 dxe4 14. Bxe4 Bxe4 15. Qxe4 Nf6 16. Qg2 Bxe5 17. fxe5 Nd5 18. Bd2 Rc8 19. Rf3 b5 20. Raf1 a5 21. a3 Qb6 22. Qf2 Rc7 23. h4 Qb7 24. h5 b4 25. axb4 axb4 26. h6 g6 27. Rc1 Rfc8 28. Qf1 Qb6 29. Kh2 bxc3 30. bxc3 Qb2 31. Qg2 Ra7 32. Bg5 Ra2 33. Qxb2 Rxb2+ 34. Kg3 Kf8 35. c4 Nb6 36. Rcf1 Rc7 37. Bd8 Rd7 38. Bxb6 Rxb6 39. d5 exd5 40. cxd5 Ke8 41. e6 fxe6 42. Rf8+ Ke7 43. R1f7+ Kd6 44. dxe6 Rxf7 45. Rxf7 Kxe6 46. Rxh7 Kf6 47. Rc7 g5 48. Kf3 Kg6 49. h7 Rb8 50. Ke4 Re8+ 51. Kd5 Kf6 52. Rc1 Kg7 53. Rh1 Kh8 54. Rh5 Re1 55. Kd4 Rg1 56. Rxg5 Kxh7 57. Ke3 Rf1 58. Rf5 Rxf5 59. gxf5 Kg7 60. Ke4 Kf7 61. Kf4 Kf6 62. Ke4 Kf7 63. Ke5 Ke7 64. Ke4 Kf7 1/2-1/2
2024.01.16 Titled Tue 16th Jan Late
674311 Koellner, Ruben Gideon (2482) Marcziter, D (2190) 1/2-1/2
1. d4 d5 2. Nf3 c5 3. e3 Nf6 4. c3 Nc6 5. Nbd2 e6 6. Bd3 Bd6 7. O-O e5 8. dxe5 Nxe5 9. Nxe5 Bxe5 10. e4 O-O 11. exd5 Qxd5 12. Nf3 Bg4 13. Be2 Bc7 14. h3 Bh5 15. Qxd5 Nxd5 16. Rd1 Rad8 17. Bg5 f6 18. Bc4 Bf7 19. Be3 b6 20. a4 Nxe3 21. Bxf7+ Kxf7 22. fxe3 Bg3 23. Kf1 Ke7 24. Ke2 Rxd1 25. Rxd1 Rd8 26. Rxd8 Kxd8 27. Kd3 Kd7 28. Kc4 Kc6 29. b4 cxb4 30. cxb4 a6 31. Nd4+ Kd7 32. Kd5 Bf2 33. Nc2 g6 34. e4 b5 35. axb5 axb5 36. Na3 Be1 37. Kc5 Ke6 38. Nc2 Bf2+ 39. Kxb5 Ke5 40. Kc6 Kxe4 41. b5 Kf4 42. Nb4 Kg3 43. Nd3 Ba7 44. Kb7 Bd4 45. Ne1 Kf2 46. Nc2 Bc5 47. Kc6 Ba7 48. Kb7 Bc5 49. Kc6 Ba7 50. Kb7 Bc5 1/2-1/2
2024.01.16 Titled Tue 16th Jan Late
674454 Spichkin, A (2035) Koellner, Ruben Gideon (2482) 0-1
1. f4 a6 2. Nf3 b5 3. d3 Bb7 4. e4 d5 5. exd5 Qxd5 6. Be2 Nf6 7. O-O e6 8. Nc3 Bc5+ 9. Kh1 Qd6 10. Qe1 Nbd7 11. Qg3 O-O-O 12. Ne5 Qe7 13. Bf3 Nd5 14. Ne4 g6 15. Nxc5 Nxc5 16. c4 Nb4 17. Bxb7+ Kxb7 18. Qf3+ Kb6 19. Be3 f6 20. d4 fxe5 21. dxc5+ Ka7 22. c6+ Kb8 23. cxb5 axb5 24. a3 Nc2 25. Qe2 Rd5 26. Qxc2 exf4 27. Rxf4 e5 28. Rb4 Rhd8 29. a4 Qxb4 30. axb5 Qxb5 31. h3 R5d6 32. Rc1 Re6 33. Kh2 Rdd6 34. Rf1 Rxc6 35. Qd2 Kb7 36. Qd8 Qxf1 37. Qd6 Rexd6 0-1
2024.01.16 Titled Tue 16th Jan Late
674756 Gosh, C (2026) Koellner, Ruben Gideon (2482) 0-1
1. e4 d6 2. Nf3 Nf6 3. Nc3 e5 4. d4 Nbd7 5. h3 c6 6. Be2 Be7 7. O-O Qc7 8. Re1 h6 9. a4 Nf8 10. d5 g5 11. Be3 Ng6 12. a5 g4 13. hxg4 Nxg4 14. Qd2 Nxe3 15. Qxe3 a6 16. Na4 c5 17. Nb6 Rb8 18. c3 Bg4 19. b4 Nf4 20. bxc5 Rg8 21. g3 Nxe2+ 22. Rxe2 Rg6 23. Rd2 h5 24. cxd6 Bxd6 25. Nh4 Bc5 26. Qd3 Rf6 27. Nc4 Rd8 28. Rb1 Kf8 29. Ne3 Qxa5 30. Rxb7 Qa1+ 31. Rb1 Qa4 32. Nef5 a5 33. Rdb2 Kg8 34. Rb8 Rxb8 35. Rxb8+ Kh7 36. Qd2 Qd1+ 37. Qxd1 Bxd1 38. Ra8 a4 39. Kf1 Bc2 40. f3 a3 41. Ke2 Rb6 42. Kd2 Rb2 43. d6 Bxe4+ 44. Kc1 Bxa8 0-1
2024.01.16 Titled Tue 16th Jan Late
674994 Koellner, Ruben Gideon (2482) Ibarra Jerez, JC (2559) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. Nbd2 cxd4 5. exd4 Nc6 6. c3 Bf5 7. Bb5 e6 8. Qa4 Qb6 9. Ne5 Rc8 10. O-O Bd6 11. Ndf3 O-O 12. Bg5 Bxe5 13. dxe5 Nd7 14. Rfe1 Nc5 15. Bxc6 Nxa4 16. Bxa4 Qxb2 17. Be7 Qxc3 18. h3 Be4 19. Ng5 Qxe5 20. Nxe4 dxe4 21. Rab1 Rc7 22. Bxf8 Kxf8 23. Rbd1 g6 24. Rd8+ Kg7 25. g3 Qa5 26. Rxe4 Rc1+ 27. Rd1 Rxd1+ 28. Bxd1 Qxa2 29. Bf3 Qb1+ 30. Kg2 a5 31. Ra4 b6 32. h4 h5 33. Rc4 b5 34. Rc7 a4 35. Bc6 Qc2 36. Rc8 a3 37. Bd7 Qxc8 38. Bxc8 a2 39. Bd7 b4 40. Bb5 a1=Q 41. Bc4 Qc3 42. Be2 b3 43. Bf3 b2 44. g4 hxg4 45. Bxg4 b1=Q 46. Bf3 Qf5 47. Kg3 Qfxf3+ 48. Kh2 Qh3+ 49. Kg1 Qcf3 50. h5 Kf6 51. h6 Qfg4# 0-1
2024.01.09 Titled Tue 9th Jan Late
681541 Koellner, Ruben Gideon (2482) Blanco Diez, David (2305) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 b6 7. Bb2 Bb7 8. Be2 Ne4 9. Nxe4 dxe4 10. Nd2 c5 11. bxc5 bxc5 12. Nb3 cxd4 13. Bxd4 Nc6 14. Bxg7 Kxg7 15. O-O Ne5 16. Qd4 Qc7 17. Rac1 Rfd8 18. Qc3 f6 19. Rfd1 Rac8 20. Rxd8 Rxd8 21. Nd4 Kf7 22. c5 Bd5 23. a4 Rc8 24. Nb5 Qd7 25. Rd1 e6 26. Rc1 Ke7 27. Qb4 Nc6 28. Qa3 Rb8 29. Nc3 a6 0-1
2024.01.09 Titled Tue 9th Jan Late
681861 Goncalves, Samuel Jesus P (2208) Koellner, Ruben Gideon (2482) 0-1
1. Nf3 d6 2. d4 Nf6 3. g3 Nbd7 4. c4 e5 5. Nc3 Be7 6. Bg2 O-O 7. O-O Re8 8. e4 Bf8 9. Re1 c6 10. h3 a6 11. Qc2 b5 12. cxb5 axb5 13. Be3 Bb7 14. a3 Qb8 15. Rad1 Rc8 16. Qd2 Nb6 17. Bf1 Nc4 18. Bxc4 bxc4 19. Bg5 Nd7 20. Qe2 exd4 21. Nxd4 Ne5 22. Rf1 Nd3 23. Nf5 Re8 24. Qd2 Ba6 25. Nd4 c5 26. Nf5 Qxb2 27. Qxb2 Nxb2 28. Rd2 Nd3 29. Nd5 Bb7 30. Nc7 Bxe4 31. Nxe8 Bxf5 32. Nc7 Rxa3 33. Nd5 Bxh3 34. Rb1 h6 35. Rb8 hxg5 36. Ne7+ Kh7 37. Rxf8 Be6 38. Rd8 c3 39. Rxd3 Ra1+ 40. Kg2 c2 41. Rc3 c1=Q 42. Rxc1 Rxc1 43. Rxd6 c4 44. Nc6 Bf5 45. Nd4 Be4+ 46. f3 Bd3 47. Kf2 Rd1 48. Ke3 Re1+ 49. Kd2 Rg1 50. g4 f6 51. Rc6 Rg2+ 52. Kc3 Ra2 53. Rc7 Rf2 54. Kb4 Kg6 55. Kc3 Be2 56. Ne6 Rxf3+ 57. Kd2 Bd3 58. Rxg7+ Kh6 59. Rc7 Rg3 60. Rc8 Rxg4 61. Rh8+ Bh7 62. Nf8 Kg7 63. Rxh7+ Kxf8 64. Rc7 Rf4 65. Ke3 Ke8 66. Rb7 Kd8 67. Ra7 c3 68. Kd3 Rf3+ 69. Kc2 g4 70. Rg7 f5 0-1
2024.01.09 Titled Tue 9th Jan Late
681935 Koellner, Ruben Gideon (2482) Davidson, Kevin (2154) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O c5 7. dxc5 dxc5 8. Qe2 Nc6 9. c3 Qc7 10. e5 Ng4 11. e6 f5 12. h3 Nge5 13. Nxe5 Nxe5 14. Bd5 Rd8 15. c4 Nc6 16. Nf3 Nd4 17. Nxd4 cxd4 18. Bg5 Rb8 19. Qf3 b5 20. Rfe1 Qc5 21. Bf4 Rb6 22. Rac1 bxc4 23. Bxc4 Bb7 24. Qg3 Rxb2 25. Bb3 Qb4 26. Red1 a5 27. Bc7 Ra8 28. Be5 Bxe5 29. Qxe5 d3 30. Qxb2 a4 31. Rxd3 axb3 32. Rxb3 1-0
2024.01.09 Titled Tue 9th Jan Late
682218 Pasti, Aron (2389) Koellner, Ruben Gideon (2482) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. h3 Nf8 10. b4 g5 11. Bb2 Ng6 12. Ne2 g4 13. hxg4 Bxg4 14. dxe5 dxe5 15. Ng3 Bxb4 16. Re3 Rd8 17. Rd3 Rxd3 18. cxd3 Nh4 19. d4 Bxf3 20. gxf3 Rg8 21. dxe5 Nh5 22. Kh2 Nf4 23. Qb3 Bc5 24. Rd1 Bxf2 25. Bxf7+ Qxf7 26. Rd8+ Kxd8 27. Qxf7 Bxg3+ 28. Kh1 Rg6 29. e6 Rxe6 30. Bf6+ Rxf6 31. Qxf6+ Kc8 32. Qh8+ Kc7 33. Qg7+ Kb6 34. Qxg3 Nhg6 35. Qe1 h5 36. e5 Kc7 37. Qb4 Kd7 38. Qd6+ Ke8 39. e6 Nd5 40. Qd7+ Kf8 41. Qf7# 1-0
2024.01.09 Titled Tue 9th Jan Late
682540 Koellner, Ruben Gideon (2482) Novikova, Galina (2073) 0-1
1. d4 e5 2. dxe5 d6 3. Nf3 Nc6 4. Bf4 Bg4 5. exd6 Qf6 6. Qc1 Bxd6 7. Bxd6 Qxd6 8. Qd2 Qxd2+ 9. Nbxd2 Nb4 10. Kd1 O-O-O 11. c3 Nc6 12. Kc2 Nf6 13. e3 Bf5+ 14. Kc1 Ng4 15. Bc4 Nxf2 16. Rf1 Nd3+ 17. Bxd3 Bxd3 18. Re1 f6 19. b3 Rhe8 20. Kb2 Be4 21. Nxe4 Rxe4 22. Re2 Rde8 23. Rae1 Ne5 24. Nxe5 R8xe5 25. Kc2 c5 26. Kd3 f5 27. Rf1 g6 28. Rf3 b5 29. Re1 Kc7 30. Ke2 a5 31. Kf2 Rd5 32. Ke2 c4 33. Rd1 Rde5 34. Rd4 cxb3 35. axb3 b4 36. Rxe4 Rxe4 37. Kd3 bxc3 38. Kxc3 Kc6 39. Kd3 Kc5 40. Rf1 Kb4 41. Ra1 Re7 42. Ra4+ Kb5 43. Rd4 Rc7 44. h3 Re7 45. g3 Rc7 46. h4 Re7 47. Rd5+ Kb4 48. Kd4 Ra7 49. Rd8 Kxb3 50. Rb8+ Kc2 51. Rc8+ Kb2 52. Rb8+ Kc2 53. Rc8+ Kd2 54. Rb8 a4 55. Rb2+ Kc1 56. Ra2 a3 57. Kc3 Kb1 58. Kb3 Rb7+ 59. Kxa3 Ra7+ 60. Kb3 Rxa2 61. Kc3 Rg2 62. e4 fxe4 63. Kd4 Rxg3 64. Kxe4 Rg4+ 65. Ke5 Rxh4 66. Kf6 Rb4 67. Kg7 g5 68. Kh6 g4 69. Kg7 g3 70. Kh6 g2 71. Kg7 h5 72. Kh6 h4 73. Kg6 h3 74. Kh5 h2 75. Kg5 g1=Q+ 76. Kf5 Qf2+ 77. Ke6 Re4+ 78. Kd5 Qd4+ 79. Kc6 Re6+ 80. Kb7 Qd7+ 81. Ka8 Re8# 0-1
2024.01.06 34th Staufer-Open 2024
685964 Volkov, My (2281) Koellner, Ruben Gideon (2482) 1/2-1/2
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Bf5 7. Qf3 Bg6 8. Bxf6 Qxf6 9. Qxf6 gxf6 10. h4 h5 11. Kd2 Nd7 12. Nge2 Bd6 13. g3 f5 14. Nf4 Nf6 15. f3 O-O-O 16. Bd3 Rhe8 17. Rhe1 Kb8 1/2-1/2
2024.01.05 34th Staufer-Open 2024
685890 Koellner, Ruben Gideon (2482) Nemitz, Alfred (2223) 1-0
1. d4 d5 2. Nf3 c5 3. e3 Nf6 4. Nbd2 Nc6 5. c3 e6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 e5 11. e4 Bc7 12. Re1 Re8 13. Qc2 h6 14. Rad1 Bg4 15. h3 Bxf3 16. Nxf3 dxe4 17. Bxe4 Qb8 18. b5 Ne7 19. c4 Nxe4 20. Qxe4 a6 21. a4 axb5 22. axb5 Ng6 23. Rd7 Ra2 24. Qb1 Nf8 25. Rxf7 Rxb2 26. Rxf8+ Rxf8 27. Qxb2 Qa7 28. Qc2 Qc5 29. Re2 Rf4 30. Nd2 Qd4 31. Ne4 Ba5 32. g3 Rf7 33. c5 Kh8 34. Qa2 Qd1+ 35. Kg2 Rf8 36. Re3 Bb4 37. Qc4 Qd4 38. Qxd4 exd4 39. Rb3 Ba5 40. Rd3 Rd8 41. Nd6 b6 42. Nf7+ 1-0
2024.01.05 34th Staufer-Open 2024
685923 Koellner, Ruben Gideon (2482) Wong, Gengchun (2267) 1/2-1/2
1. d4 Nf6 2. Bg5 d5 3. Nd2 c5 4. dxc5 e6 5. e4 Bxc5 6. e5 h6 7. Bh4 g5 8. Bg3 Nfd7 9. Qh5 Bd4 10. Ngf3 Bxb2 11. Rb1 Bc3 12. h4 gxh4 13. Rxh4 Nc6 14. Bb5 Nf8 15. Rb3 Ba5 16. Rg4 Qc7 17. Ng5 hxg5 18. Qxh8 Bd7 19. c3 O-O-O 20. Qf6 d4 21. c4 Bxd2+ 22. Kxd2 Qa5+ 23. Kd1 Qxa2 24. Qf3 a6 25. Qd3 axb5 26. cxb5 Qa1+ 27. Rb1 Qa4+ 28. Ke2 1/2-1/2
2024.01.04 34th Staufer-Open 2024
685818 Koellner, Ruben Gideon (2482) Luebke, Florentin (2204) 1-0
1. d4 d5 2. Nf3 c5 3. e3 Nf6 4. Nbd2 e6 5. b3 Nbd7 6. Bb2 Bd6 7. Bd3 Qc7 8. O-O e5 9. dxe5 Nxe5 10. Nxe5 Bxe5 11. Bxe5 Qxe5 12. e4 dxe4 13. Nxe4 Bd7 14. Nxf6+ Qxf6 15. Re1+ Be6 16. Bb5+ Kf8 17. Qd6+ Qe7 18. Qe5 h5 19. Rad1 b6 20. Rd7 Qf6 21. Rxa7 Qxe5 22. Rxa8+ Ke7 23. Rxe5 Rxa8 24. a4 Kf6 25. Re3 Rd8 26. Kf1 Rd2 27. Bd3 Rd1+ 28. Re1 Rd2 29. Rb1 Bf5 30. Ke1 Rxc2 31. Bxc2 Bxc2 32. Rb2 Be4 33. f3 Bc6 34. Kd2 Ke5 35. Ke3 h4 36. Rc2 Bd5 37. a5 bxa5 38. Rxc5 h3 39. g4 Ke6 40. Rb5 g5 41. Rxa5 Bxb3 42. Rxg5 1-0
2024.01.04 34th Staufer-Open 2024
685848 Khrapko, Marharyta (2236) Koellner, Ruben Gideon (2482) 1/2-1/2
1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O Nd4 5. Nxd4 exd4 6. d3 c6 7. Bc4 d5 8. exd5 cxd5 9. Bb5+ Bd7 10. Bxd7+ Qxd7 11. Bg5 Ne7 12. Nd2 f6 13. Nb3 Bb6 14. Bd2 O-O 15. a4 a5 16. Re1 Nc6 17. Qf3 Ne5 18. Qg3 Rfc8 19. Rec1 Rc6 20. Qh4 Qc7 21. f4 Nf7 22. Qh5 Rd8 23. Qd1 Nh6 24. Kh1 Nf5 25. Qe1 Ra8 26. c4 dxc3 27. Rxc3 Qf7 28. Rxc6 bxc6 29. Bxa5 Ba7 30. Qd1 Qg6 31. d4 Rb8 32. Bc3 Nh4 33. Qe2 Rxb3 34. Qe6+ Qf7 35. Qc8+ Qf8 36. Qd7 Qf7 37. Qc8+ Qf8 38. Qd7 Qf7 39. Qc8+ 1/2-1/2
2024.01.03 34th Staufer-Open 2024
685726 Koellner, Ruben Gideon (2482) Knudsen, Simon (2213) 0-1
1. d4 d5 2. Nf3 Nf6 3. c3 e6 4. Nbd2 c5 5. e3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bb6 10. b5 Na5 11. Ba3 Re8 12. Qe2 e5 13. e4 Nh5 14. Bc2 Nf4 15. Qd1 Bg4 16. exd5 f5 17. Re1 e4 18. Nxe4 fxe4 19. Bxe4 Qf6 20. d6 Kh8 21. Bb4 Rxe4 22. Rxe4 Nh3+ 23. Kf1 Nxf2 24. Qe2 Nxe4 25. Qxe4 Bd7 26. a4 Re8 27. Qd5 Be6 28. Re1 Bxd5 29. Rxe8+ Bg8 30. d7 h6 31. Bc5 Qf5 32. Bxb6 Qxd7 33. Rd8 Qe7 34. Bxa5 b6 35. Rxg8+ Kxg8 36. Bb4 Qe6 37. Nd4 Qa2 38. h3 Kf7 39. Kg1 Kf6 40. Kh2 g6 41. Kg3 Qxa4 42. Kh2 Ke5 43. Kg3 Ke4 44. h4 h5 45. Bd6 Qd1 46. Kh2 Qe1 47. Bg3 Qxc3 48. Nc6 Qa1 49. Bb8 a6 50. Be5 Qa4 0-1
2024.01.03 34th Staufer-Open 2024
685774 Lesny, Florian (2196) Koellner, Ruben Gideon (2482) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O Nb6 7. Bd3 Nfd7 8. a4 a5 9. Be3 c6 10. Qd2 O-O 11. Rad1 Bf6 12. b3 Re8 13. Rfe1 Qc7 14. Bf1 g6 15. d5 Be7 16. Bg5 Bf8 17. h3 Nc5 18. Be3 Na6 19. Nh2 Nb4 20. dxc6 bxc6 21. f4 Nd7 22. Nf3 exf4 23. Bxf4 Ne5 24. Nxe5 dxe5 25. Be3 Na6 26. Qf2 Bb4 27. Bd2 Bc5 28. Be3 Bb4 29. Bd2 Rd8 30. Kh1 Be6 31. Nb1 Bc5 32. Be3 Rxd1 33. Rxd1 Qb6 34. Bxc5 Nxc5 35. Nd2 Nxa4 36. Qxb6 Nxb6 37. Nf3 Nd7 38. Bc4 Bxc4 39. Rxd7 Be6 40. Rd6 c5 41. Nxe5 c4 42. Nxc4 Bxc4 43. bxc4 a4 44. c5 a3 45. Rd1 a2 46. Ra1 Kf8 47. Kg1 Ke7 48. Kf2 Ra3 49. Ke2 Kd7 50. Kd2 Kc6 51. Kc1 Kxc5 52. Kb2 Rg3 53. Rxa2 Rxg2 54. Ra7 Rh2 55. Rxf7 Rxh3 56. Rd7 Kc6 57. Rd2 g5 58. e5 g4 59. e6 Re3 60. Rh2 Kd6 61. Rxh7 Kxe6 62. Rg7 Kf5 63. c3 Kf4 64. Kb3 g3 65. Kb4 Kf3 66. c4 Re4 67. Kb5 Rg4 68. Rf7+ Ke2 69. Ra7 g2 70. Ra1 g1=Q 71. Rxg1 Rxg1 72. c5 Kd3 73. c6 Kd4 74. c7 Rc1 75. Kb6 Kd5 76. Kb7 Rb1+ 77. Ka7 Rc1 78. Kb7 Kd6 79. c8=Q Rxc8 80. Kxc8 1/2-1/2
2024.01.02 34th Staufer-Open 2024
685649 Koellner, Ruben Gideon (2482) Lenz, Jonas (2154) 1-0
1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. f3 Qa5+ 5. c3 Nf6 6. d5 Qb6 7. Bc1 e6 8. e4 c4 9. Bxc4 Bc5 10. Ne2 exd5 11. exd5 O-O 12. b4 Bd6 13. Qd4 Qc7 14. Bf4 Re8 15. Bxd6 Qxd6 16. Nd2 a5 17. Ne4 Nxe4 18. fxe4 axb4 19. O-O Na6 20. cxb4 Nxb4 21. Nc3 Qg6 22. Bb3 1-0
2024.01.02 34th Staufer-Open 2024
685687 Kolbus, D (2222) Koellner, Ruben Gideon (2482) 0-1
1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. e3 Nbd7 5. Nc3 a6 6. b3 b6 7. Bb2 Bb7 8. Be2 Bd6 9. O-O O-O 10. Rc1 Qe7 11. Qc2 Rac8 12. Qb1 Ne4 13. Nxe4 dxe4 14. Nd2 f5 15. c5 bxc5 16. dxc5 Bxc5 17. Nc4 Bd5 18. Ne5 Nxe5 19. Bxe5 a5 20. Qa1 Bd6 21. Rc2 Bxe5 22. Qxe5 Qd6 23. Qc3 Qb4 24. Qc5 c6 25. Rfc1 Ra8 26. Qc3 Qxc3 27. Rxc3 a4 28. Bc4 axb3 29. Bxb3 Kf7 30. g4 fxg4 31. Rxc6 Bxc6 32. Rxc6 Rfe8 33. Rc4 Kf6 34. Rxe4 h5 35. h3 gxh3 36. Rh4 g5 37. Rxh3 Rh8 38. Kg2 g4 39. Rh1 e5 40. f3 Kg5 41. Rb1 Rab8 42. Rb2 Rhf8 43. fxg4 hxg4 44. Re2 Rb6 45. Bd5 Rfb8 46. Bb3 Rh8 47. Bd5 Rd6 48. Be4 Rhd8 49. a4 Rd2 50. Kf1 Rf8+ 51. Ke1 Rxe2+ 52. Kxe2 g3 53. Kd3 Rf2 0-1
2024.01.02 Titled Tue 2nd Jan Late
689387 Filipovic, SJ (2191) Koellner, Ruben Gideon (2482) 0-1
1. c4 d6 2. Nc3 e5 3. g3 f5 4. Bg2 Nf6 5. e3 Be7 6. Nge2 O-O 7. d4 e4 8. h4 Be6 9. Nf4 Bf7 10. d5 Na6 11. b3 Nc5 12. Bb2 a5 13. h5 Nfd7 14. Bh3 Ne5 15. Rb1 Qd7 16. Ba1 Bf6 17. O-O g5 18. hxg6 hxg6 19. Bg2 Kg7 20. f3 exf3 21. Bxf3 Rae8 22. Nb5 Qe7 23. Re1 Rh8 24. Nd4 Rh7 25. Nde6+ Bxe6 26. dxe6 c6 27. a3 Nxe6 28. Nxe6+ Qxe6 29. Bg2 Ng4 30. e4 Bxa1 31. Rxa1 Qe5 32. Qf3 Qc5+ 33. Re3 Qxe3+ 34. Qxe3 Nxe3 35. exf5 Nxg2 36. fxg6 Kxg6 37. Kxg2 Re2+ 38. Kf3 Rb2 39. Rd1 Rxb3+ 40. Kg4 Rd7 41. Rd2 Rxa3 42. c5 d5 43. Re2 Ra4+ 44. Kh3 Rh7+ 45. Kg2 Rb4 46. Re6+ Kf5 47. Re8 a4 48. Kf3 Rb3+ 49. Kf2 a3 50. Rf8+ Ke4 51. Re8+ Kd3 52. Re1 Kc4 53. Rc1+ Kb4 54. Ra1 Rb2+ 55. Kf3 a2 56. Kg4 Kb3 57. Kg5 Rb1 58. Rxa2 Kxa2 59. g4 Rg7+ 60. Kf6 Rxg4 61. Ke6 Rb5 62. Kd6 Rxc5 63. Kxc5 Rc4+ 64. Kd6 b5 65. Ke5 b4 66. Kf5 b3 67. Ke5 b2 68. Kd6 b1=Q 69. Kc7 Rc2 70. Kd6 c5 71. Ke5 c4 72. Kxd5 c3 73. Kd4 Rd2+ 74. Kc4 c2 0-1
2024.01.02 Titled Tue 2nd Jan Late
689505 Koellner, Ruben Gideon (2482) Sukandar, I (2349) 0-1
1. d4 Nf6 2. Nf3 b6 3. Nbd2 Bb7 4. e3 g6 5. Bd3 Bg7 6. O-O O-O 7. e4 d6 8. c3 e5 9. Re1 Nbd7 10. a4 a6 11. a5 b5 12. b4 Re8 13. Bb2 c5 14. d5 c4 15. Bc2 Nh5 16. Nf1 Nf8 17. Bc1 h6 18. Be3 Bc8 19. Qd2 g5 20. Ng3 Nf4 21. Nf5 Bxf5 22. exf5 Nd7 23. g3 Nd3 24. Re2 Qf6 25. g4 Nf4 26. Ree1 e4 27. Bd4 exf3 28. Bxf6 Bxf6 29. Re3 Ne2+ 30. Kf1 Nxc3 31. Rxc3 Re2 0-1
2024.01.02 Titled Tue 2nd Jan Late
689883 Alimpic, Aleksa (2282) Koellner, Ruben Gideon (2482) 0-1
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 h6 6. Bxf6 Bxf6 7. Rc1 c6 8. Nf3 O-O 9. Qc2 Re8 10. Be2 Nd7 11. O-O dxc4 12. Bxc4 e5 13. Rfd1 exd4 14. exd4 Nb6 15. Bb3 Bg4 16. Qd3 Qc7 17. h3 Bh5 18. d5 Rad8 19. d6 Qb8 20. g4 Qc8 21. Nh2 Be5 22. gxh5 Rxd6 23. Qf3 Rf6 24. Qg4 Qc7 25. Nf3 Rf4 26. Qg2 Bf6 27. Re1 Rd8 28. Ne2 Rf5 29. Ng3 Rf4 30. Rcd1 Nd5 31. Bxd5 cxd5 32. Ne2 Rf5 33. Ned4 Rxh5 34. Qg4 g6 35. Re2 Kg7 36. Kh1 Qc4 37. Rde1 Rd6 38. b3 Qc5 39. Re8 Rb6 40. Rc8 Qd6 41. Ree8 Rb4 42. Rg8+ Kh7 43. Rgf8 Qe7 44. Rce8 Qc7 45. Qc8 Qxc8 46. Rxc8 Kg7 47. Ne2 Re4 48. Ng3 Rxh3+ 49. Kg2 Rxg3+ 50. fxg3 Re7 51. Rfe8 Rd7 52. Rb8 d4 53. Nd2 d3 54. Kf1 Bg5 55. Ke1 Rc7 56. Kd1 Rc2 57. Nc4 Rc1# 0-1
2024.01.02 Titled Tue 2nd Jan Late
690043 Koellner, Ruben Gideon (2482) Baches Garcia, G (2327) 1-0
1. d4 d5 2. Nf3 e6 3. Nbd2 c5 4. e3 Nf6 5. c3 b6 6. Ne5 a6 7. f4 Bd6 8. Bd3 Bb7 9. Qf3 Nbd7 10. O-O Qc7 11. a4 O-O 12. g3 Ne8 13. Qh5 g6 14. Qh3 Ng7 15. g4 f5 16. Ndf3 b5 17. axb5 axb5 18. Rxa8 Bxa8 19. Bxb5 Nxe5 20. Nxe5 Bxe5 21. fxe5 c4 22. Ba4 Bc6 23. Bc2 Qd7 24. Qg2 Ba4 25. Bb1 fxg4 26. Rxf8+ Kxf8 27. Qxg4 Qf7 28. e4 h5 29. Qf4 Qxf4 30. Bxf4 Bc6 31. exd5 Bxd5 32. Bxg6 h4 33. Bh6 Kg8 34. Bxg7 Kxg7 35. Bc2 Kh6 36. Kf2 Kg5 37. Bd1 Kf4 38. Bh5 Bc6 39. Bd1 Bd5 40. Be2 Kg5 41. Ke3 h3 42. Bf3 1-0
2024.01.02 Titled Tue 2nd Jan Late
690254 Oparin, G (2664) Koellner, Ruben Gideon (2482) 1-0
1. c4 a6 2. Nc3 e6 3. e4 c5 4. Nf3 Nc6 5. d4 cxd4 6. Nxd4 Qc7 7. Be2 Nf6 8. O-O Bd6 9. h3 Be5 10. Nxc6 dxc6 11. Qd3 c5 12. f4 Bd4+ 13. Be3 Bxe3+ 14. Qxe3 O-O 15. e5 Nd7 16. Rad1 Nb8 17. Ne4 b6 18. Ng5 Bb7 19. Qd3 g6 20. Qd6 Rc8 21. Bg4 Qxd6 22. Rxd6 Nc6 23. Nxf7 Kxf7 24. Rd7+ Kf8 25. Rxb7 Nd4 26. Rxh7 Kg8 27. Rd7 Rd8 28. Rb7 Rab8 29. Ra7 Ra8 30. Rxa8 Rxa8 31. Rd1 a5 32. Kf2 a4 33. Ke3 a3 34. b3 Kf7 35. Bf3 Rd8 36. Kf2 Ke7 37. Be4 Rf8 38. Ke3 Rg8 39. h4 Kf7 40. Rh1 Rh8 41. g4 Kg7 42. b4 Rd8 43. bxc5 bxc5 44. Rb1 Rd7 45. Rb6 Kf7 46. Ra6 Rd8 47. Rxa3 Rb8 48. Ra7+ Kg8 49. Ra8 Rxa8 50. Bxa8 Kf7 51. Be4 Ke7 52. a4 1-0
2024.01.02 Titled Tue 2nd Jan Late
690447 Koellner, Ruben Gideon (2482) Silva, Kaua Marques (2142) 0-1
1. d4 Nf6 2. Bg5 g6 3. Bxf6 exf6 4. e3 d5 5. g3 Bd6 6. Bg2 c6 7. Ne2 Nd7 8. b3 f5 9. c4 Nf6 10. Nbc3 Be6 11. cxd5 Bxd5 12. Nxd5 cxd5 13. O-O h5 14. Nc3 Bb4 15. Qd3 Bxc3 16. Qxc3 h4 17. Rfc1 O-O 18. Qc7 hxg3 19. hxg3 Rb8 20. Qxd8 Rfxd8 21. Rc7 Ne8 22. Rc5 Nf6 23. Rac1 Rd7 24. Rc7 Rbd8 25. Kf1 Kf8 26. Ke2 Ke7 27. R7c5 Rh8 28. Bf3 Ke6 29. a4 g5 30. Rc8 Rh2 31. Rh1 Rxh1 32. Bxh1 Rd6 33. b4 Rc6 34. Rb8 b6 35. Rb7 Rc2+ 36. Kd3 Rc4 37. Rxa7 Rxb4 38. Ra6 Ke7 39. Bf3 Rb2 40. Be2 Ne4 41. Ra7+ Kf6 42. Bf3 Rd2# 0-1
2023.12.19 Titled Tue 19th Dec Early
705890 Kahlert, T (2110) Koellner, Ruben Gideon (2490) 0-1
1. c4 d6 2. Nf3 e5 3. Nc3 f5 4. d4 e4 5. Ng5 Nf6 6. g3 d5 7. cxd5 Nxd5 8. Bg2 Be7 9. Nh3 Be6 10. O-O O-O 11. Nf4 Nxf4 12. Bxf4 Bd6 13. Qd2 Bxf4 14. Qxf4 c6 15. Rfd1 Nd7 16. f3 exf3 17. exf3 Nf6 18. Re1 Qd7 19. Rad1 Rae8 20. a3 Bb3 21. Rc1 Nd5 22. Qd2 Nxc3 23. Rxc3 Bd5 24. f4 Rxe1+ 25. Qxe1 Bxg2 26. Kxg2 Qxd4 27. Qe6+ Kh8 28. Re3 Qxb2+ 29. Re2 Qxa3 30. Qd7 b5 31. Qxc6 a6 32. Re8 h6 33. Qc8 Rxe8 34. Qxe8+ Kh7 35. Qe6 Qc5 36. Qxa6 Qc2+ 37. Kh3 b4 38. Qb5 b3 0-1
2023.12.19 Titled Tue 19th Dec Early
706321 Koellner, Ruben Gideon (2490) Smolka, M (2190) 0-1
1. d4 d5 2. Nf3 Nf6 3. Nbd2 e6 4. e3 a6 5. Bd3 Bd6 6. O-O c5 7. c3 O-O 8. dxc5 Bxc5 9. b4 Ba7 10. Bb2 Nc6 11. a3 e5 12. e4 d4 13. cxd4 Nxd4 14. Nxe5 Qc7 15. Nef3 Rd8 16. Nxd4 Bxd4 17. Bxd4 Rxd4 18. Nf3 Bg4 19. e5 Bxf3 20. Qxf3 Qxe5 21. Qxb7 Rad8 22. Bxa6 Rh4 23. g3 Re4 24. Rad1 Rb8 25. Qc6 Re8 26. Bb7 Qh5 27. Qc5 R4e5 28. Qc6 Re4 29. Qxe4 Nxe4 30. Bxe4 g5 31. Bg2 g4 32. a4 Re6 33. b5 Rh6 34. Rd8+ Kg7 35. Rfd1 Qxh2+ 36. Kf1 Qh5 37. R8d5 Qg6 38. Rd6 Qc2 39. R6d2 Qc4+ 40. Kg1 Qxa4 41. Bc6 Qb4 42. Rd4 Qb3 43. Rxg4+ Rg6 44. Rxg6+ hxg6 45. Re1 Kf6 46. Re3 Qb1+ 47. Kg2 Kg5 48. Re5+ f5 49. Re3 Kf6 50. Rc3 Qb4 51. Rd3 Ke5 52. Rd5+ Ke6 53. Rd8 g5 54. Rd3 f4 55. gxf4 gxf4 56. Bd5+ Ke5 57. Rb3 Qd4 58. Bc6 Qb6 59. Kf3 Kf5 60. Rd3 Ke5 61. Rd5+ Ke6 62. Rd2 Ke5 63. Rd5+ Ke6 64. Rh5 Qd4 65. Rh2 Ke5 66. Rh5+ Ke6 67. Rh6+ Ke5 68. Rh7 Qd3+ 69. Kg2 Qxh7 70. b6 Qg6+ 71. Kf3 Qxc6+ 72. Kg4 Qxb6 0-1
2023.12.19 Titled Tue 19th Dec Early
706373 Manukyan, SaV (2253) Koellner, Ruben Gideon (2490) 1/2-1/2
1. c4 a6 2. d4 b5 3. cxb5 axb5 4. e4 b4 5. Nf3 Bb7 6. Bd3 e6 7. O-O Nf6 8. Qe2 Be7 9. h4 h6 10. Nbd2 d6 11. Rd1 Nbd7 12. e5 Nd5 13. Nc4 dxe5 14. Ncxe5 O-O 15. Nxd7 Qxd7 16. Ne5 Qc8 17. Bxh6 gxh6 18. Qg4+ Kh8 19. Qh5 Kg7 20. Qg4+ Kh8 21. Qh5 Kg7 22. Qg4+ Kh8 1/2-1/2
2023.12.19 Titled Tue 19th Dec Early
706642 Koellner, Ruben Gideon (2490) Caceres Benitez, Arturo Eduardo (2172) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O c6 7. Bb3 Nfd7 8. c3 Na6 9. Re1 Nc7 10. e5 d5 11. Nf1 e6 12. h4 Re8 13. h5 c5 14. N1h2 b5 15. Ng4 a5 16. Bc2 b4 17. Bg5 f6 18. exf6 Nxf6 19. hxg6 h5 20. Nxf6+ Bxf6 21. Bf4 Nb5 22. Ne5 Bxe5 23. Rxe5 bxc3 24. Qxh5 Ra7 25. bxc3 Nxc3 26. Re3 cxd4 27. Be5 1-0
2023.12.19 Titled Tue 19th Dec Early
706914 Koellner, Ruben Gideon (2490) Khamdamova, Afruza (2327) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 c5 5. c3 Nc6 6. Bd3 Be7 7. O-O O-O 8. Ne5 Qc7 9. f4 b6 10. Qf3 Bb7 11. g4 Rad8 12. g5 Nxe5 13. fxe5 Ne4 14. Nxe4 dxe4 15. Bxe4 Bxe4 16. Qxe4 Bxg5 17. Kh1 Kh8 18. Rg1 Bh6 19. Rg2 f6 20. exf6 Rxf6 21. Bd2 cxd4 22. exd4 Bxd2 23. Rxd2 Rdf8 24. Rg1 Qf7 25. Rdg2 g6 26. Qe5 Kg8 27. Re2 Qb7+ 28. Qe4 Qa6 29. h4 Qa5 30. Rg5 Rf1+ 31. Kg2 Qxa2 32. h5 Qa1 33. Qxe6+ Kh8 34. Qe5+ Kg8 35. Qd5+ Kh8 36. hxg6 Rg1+ 37. Kh2 Rxg5 38. Qxg5 hxg6 39. Qh6+ Kg8 40. Qxg6+ Kh8 41. Qh6+ Kg8 42. Rg2+ Kf7 43. Rg7+ Ke8 44. Qe6+ 1-0
2023.12.19 Titled Tue 19th Dec Early
707144 Nilsson, Joakim (2158) Koellner, Ruben Gideon (2490) 0-1
1. d4 d6 2. Nf3 Nf6 3. c3 Nbd7 4. Bg5 e5 5. Nbd2 Be7 6. e4 h6 7. Bh4 exd4 8. Nxd4 Nxe4 9. Nxe4 Bxh4 10. Qh5 O-O 11. Bd3 Nf6 12. Nxf6+ Bxf6 13. O-O-O Bxd4 14. cxd4 Qg5+ 15. Qxg5 hxg5 16. Rhe1 Be6 17. Kb1 c6 18. Re3 Rfe8 19. Rg3 f6 20. Bg6 Bf7 21. Bc2 Re2 22. Re3 Re8 23. Rxe8+ Bxe8 24. Rf1 Rd2 25. d5 c5 26. Kc1 Rd4 27. Re1 Kf8 28. Re6 Rxd5 29. Bb3 Rd4 30. Re3 Bf7 31. Bc2 d5 32. Rb3 b6 33. Ra3 a5 34. Rb3 Rb4 35. Re3 d4 36. Re1 Bxa2 37. b3 Bxb3 38. Bg6 Bf7 39. Bf5 g6 0-1
2023.12.19 Titled Tue 19th Dec Early
707427 Koellner, Ruben Gideon (2490) Kravtsiv, M (2598) 0-1
1. d4 e6 2. Nf3 Nf6 3. Nbd2 c5 4. e3 b6 5. c3 Bb7 6. Bd3 Be7 7. O-O O-O 8. e4 d6 9. Qe2 Nbd7 10. Rd1 Qc7 11. Nf1 e5 12. d5 Rfe8 13. Ne3 Bf8 14. a4 g6 15. g3 Bg7 16. Nd2 Rad8 17. b4 Nb8 18. Ndc4 Bc8 19. Na3 Nh5 20. a5 Nf4 21. gxf4 exf4 22. Nec4 cxb4 23. Nb5 Qe7 24. Nbxd6 Rxd6 25. Bxf4 Rdd8 26. Bxb8 Bxc3 27. Rac1 Rxd5 28. exd5 Qg5+ 29. Bg3 Rxe2 30. Bxe2 bxa5 31. Nxa5 h5 32. h4 Qf6 33. d6 Bd7 34. Bf1 g5 35. Bg2 gxh4 36. Bh2 Qg5 37. Kh1 Qxa5 38. Rg1 Kh8 39. Rcd1 b3 40. Rd5 Qb4 41. Rxh5+ Kg7 42. Bc6+ Bg4 43. f3 b2 44. Rxg4+ Qxg4 45. fxg4 b1=Q+ 46. Kg2 Qc2+ 47. Kh3 Bf6 48. g5 Qxc6 49. gxf6+ Kg6 50. Rxh4 Qf3+ 51. Bg3 Qh1+ 52. Kg4 Qd1+ 53. Kh3 a5 54. Rg4+ Kxf6 55. Rf4+ Ke6 56. Rh4 a4 57. Rh6+ f6 58. Rh7 Qh1+ 59. Bh2 Qf1+ 60. Kh4 Qc4+ 61. Kh3 Qd3+ 62. Bg3 Qxh7+ 63. Kg2 Qd7 0-1
2023.12.19 Titled Tue 19th Dec Early
707608 Martinez Reyes, P (2342) Koellner, Ruben Gideon (2490) 1-0
1. Nf3 a6 2. g3 b5 3. Bg2 Bb7 4. O-O e6 5. d3 Nf6 6. e4 Be7 7. e5 Nd5 8. c4 bxc4 9. dxc4 Nb6 10. Qe2 c5 11. Nc3 Nc6 12. Rd1 Qc7 13. Bf4 h6 14. h4 Rg8 15. h5 O-O-O 16. Ne4 Kb8 17. Nd6 Bxd6 18. exd6 Qc8 19. Qe3 e5 20. Qxc5 exf4 21. Qxb6 fxg3 22. fxg3 Rde8 23. Re1 Qd8 24. Qc5 Qa5 25. Qxa5 Nxa5 26. b3 Bxf3 27. Bxf3 Nb7 28. Kf2 Nxd6 29. Red1 Kc7 30. Rd5 Ne4+ 31. Kg2 d6 32. Ra5 Kb6 33. b4 Nd2 34. Bd5 Re2+ 35. Kh3 Rge8 36. Rc1 R8e5 37. Bxf7 Rxa5 38. bxa5+ Kxa5 39. c5 dxc5 40. Rxc5+ Kb4 41. Rc7 Nf3 42. Rb7+ Kc5 43. Bb3 Ng5+ 44. Kg4 Re4+ 45. Kf5 Re3 46. g4 Rf3+ 47. Kg6 Rf4 48. Kxg7 Rxg4 49. Kxh6 Ne4 50. Rf7 Kd4 51. Kh7 Ke5 52. h6 Nf6+ 53. Rxf6 Kxf6 54. Kh8 Rd4 55. h7 Rd8+ 56. Bg8 Kg6 57. a4 1-0
2023.12.19 Titled Tue 19th Dec Early
707719 Dinu, DD (2190) Koellner, Ruben Gideon (2490) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Qe2 Qc7 9. h3 Nf8 10. Rd1 g5 11. Be3 Ng6 12. dxe5 dxe5 13. Nh2 Nf4 14. Qd2 Kf8 15. f3 Rg8 16. Ne2 h5 17. h4 Nxe2+ 18. Bxe2 gxh4 19. Bh6+ Ke8 20. Bg5 Nxe4 21. fxe4 Bxg5 22. Qd3 Bf4 23. Bxh5 Rg3 24. Qc4 h3 25. Bf3 hxg2 26. Bxg2 Bh3 27. Qe2 Rxg2+ 28. Qxg2 Bxg2 29. Kxg2 Ke7 30. Nf3 Rg8+ 31. Kf1 Qb6 32. b3 Qe3 0-1
2023.12.19 Titled Tue 19th Dec Early
707863 Koellner, Ruben Gideon (2490) Asish Panda (1773) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 Bd6 5. Ne5 O-O 6. f4 c5 7. c3 Ne4 8. Nxe4 dxe4 9. Be2 cxd4 10. Qxd4 f5 11. O-O Bxe5 12. Qxe5 Nc6 13. Qc5 Qd5 14. Qxd5 exd5 15. b3 Be6 16. Bb2 Rac8 17. Rfd1 Rfd8 18. Rd2 Kf7 19. Rad1 a6 20. Kf2 g6 21. h3 h5 22. Kg3 Rd7 23. c4 Rcd8 24. c5 Rc8 25. a3 a5 26. Bb5 Rdc7 27. Be5 Nxe5 28. fxe5 Rxc5 29. Be2 Rc3 30. Kf4 Rxb3 31. Rxd5 Bxd5 32. Rxd5 Rb2 33. Bb5 Rc7 34. Kg3 b6 35. a4 Ke6 36. Rd6+ Kxe5 37. Rxg6 Rb3 38. Kh4 Rxe3 0-1
2023.12.19 Titled Tue 19th Dec Early
708068 Tifferet, Shakked (2334) Koellner, Ruben Gideon (2490) 0-1
1. e4 c6 2. Nc3 Nf6 3. e5 Nd5 4. Bc4 Nxc3 5. dxc3 d5 6. Bd3 g6 7. h4 Bg7 8. Bf4 Nd7 9. Nf3 Nc5 10. h5 Nxd3+ 11. Qxd3 Bf5 12. Qd2 Qb6 13. h6 Bf8 14. b4 a5 15. Be3 Qa6 16. Nd4 e6 17. a4 axb4 18. cxb4 Qc4 19. f3 Bxb4 20. g4 Bxd2+ 21. Kxd2 c5 22. Nb5 Qxc2+ 23. Ke1 Bd3 24. Nd6+ Kd7 25. Bd2 Rxa4 26. Rc1 Qb3 27. Nxf7 Rf8 28. Ng5 Rfa8 29. Nxh7 Ra1 30. Nf6+ Kc6 31. Kf2 Rxc1 32. Rxc1 Qb2 33. Ke1 Qd4 34. Kd1 Qg1+ 35. Be1 Qg2 36. Rxc5+ Kxc5 37. Nd7+ Kc6 38. Nb8+ Rxb8 39. Bf2 Qxf2 0-1
2023.12.12 Titled Tue 12th Dec Early
713123 Koellner, Ruben Gideon (2490) Mesa Cruz, Juan Carlos (2126) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 b6 5. Ne5 Bd6 6. Bd3 O-O 7. f4 Ba6 8. O-O Bxd3 9. cxd3 c5 10. dxc5 bxc5 11. b3 Nfd7 12. Bb2 f6 13. Nxd7 Nxd7 14. e4 Qc7 15. Qf3 Nb6 16. Rac1 Rad8 17. Qg3 a5 18. e5 fxe5 19. fxe5 Be7 20. Nf3 a4 21. Qg4 Qd7 22. Ba3 Rc8 23. Rc2 axb3 24. axb3 Rf5 25. Rfc1 Qb5 26. Nd4 cxd4 27. Rxc8+ Nxc8 28. Rxc8+ Rf8 29. Qxe6+ Kh8 30. Bxe7 1-0
2023.12.12 Titled Tue 12th Dec Early
713410 Koellner, Ruben Gideon (2490) Pranav, V (2611) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O Nc6 7. c3 e5 8. dxe5 dxe5 9. Qe2 Qe7 10. a4 Nh5 11. g3 Bh3 12. Re1 a5 13. b3 Rfd8 14. Ba3 Qf6 15. Nf1 Bg4 16. Kg2 Nf4+ 17. gxf4 exf4 18. e5 Qf5 19. Qe4 Qh5 20. Qxf4 Qh3+ 21. Kg1 Bxf3 22. Bxf7+ Kh8 23. Qg3 Qxg3+ 24. hxg3 Nxe5 25. Nh2 Nxf7 26. Nxf3 Bxc3 27. Re7 Bxa1 28. Rxf7 Rd5 29. Rxc7 b5 30. Kg2 Re8 31. Bc1 bxa4 32. bxa4 Bf6 33. Be3 Kg8 34. Ra7 Re7 35. Ra6 Kg7 0-1
2023.12.12 Titled Tue 12th Dec Early
713651 Hrebenshchykova, Yelyzaveta (2279) Koellner, Ruben Gideon (2490) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 c6 6. g4 h6 7. Be3 b5 8. a3 Be7 9. h4 Nf8 10. Nd2 Ng6 11. g5 hxg5 12. hxg5 Nh5 13. Rh1 Nhf4 14. Rxh8+ Nxh8 15. Bxf4 exf4 16. Qh5 Ng6 17. Nf3 Qd7 18. d5 Qg4 19. Qxg4 Bxg4 20. Be2 Bxf3 21. Bxf3 cxd5 22. exd5 a6 23. Ne4 Ne5 24. Ke2 Rc8 25. c3 a5 26. Rh1 Kd7 27. Rh7 g6 28. Bg2 Rc4 29. f3 b4 30. axb4 axb4 31. Nd2 Rc5 32. cxb4 Rxd5 33. Ne4 Rb5 34. Bh3+ Kc7 35. Nc3 Rb7 36. Rh8 Kc6 37. b5+ Kb6 38. Ra8 Bxg5 39. Ra6+ Kc5 40. Ne4+ Kxb5 41. Rxd6 Be7 42. Rd5+ Ka4 43. Rxe5 Rxb2+ 44. Nd2 Bb4 45. Rd5 f5 46. Rd7 Bc3 47. Kd1 Kb4 48. Ke2 Kc5 49. Kd1 Rxd2+ 50. Rxd2 Bxd2 51. Kxd2 Kd4 52. Ke2 Kc3 53. Kf2 Kd2 54. Bf1 Kc3 55. Bb5 Kd4 56. Bd7 Ke5 57. Kg2 g5 58. Bc8 Kf6 59. Kh3 Kg6 60. Bd7 Kf6 61. Bc8 Ke5 62. Bd7 Kf6 63. Kg2 Kg6 64. Kh3 Kf6 1/2-1/2
2023.12.12 Titled Tue 12th Dec Early
713916 Lopusiewicz, P (2301) Koellner, Ruben Gideon (2490) 1/2-1/2
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. h3 Qc7 9. Be3 Nf8 10. Bb3 g5 11. Nd2 Ng6 12. dxe5 dxe5 13. Nc4 g4 14. hxg4 Bxg4 15. f3 Be6 16. a5 h5 17. Bg5 h4 18. Ne3 Nh5 19. Bxe7 Qxe7 20. Nf5 Qc5+ 21. Kh2 Bxf5 22. exf5 Ngf4 23. Ne4 Qe7 24. Nd6+ Kf8 25. Nxf7 Rg8 26. Rf2 h3 27. g4 Nf6 28. Qd6 Qxd6 29. Nxd6 Rg7 30. a6 b5 31. Rd2 Rd8 32. Rad1 Ke7 33. Nb7 Rxd2+ 34. Rxd2 e4 35. fxe4 Nxg4+ 36. Kh1 h2 37. Nc5 Nh3 38. Rd7+ Kf6 39. e5+ Kxf5 40. Be6+ Kxe5 41. Bxg4 Nf2+ 42. Kxh2 Nxg4+ 43. Kg3 Rxd7 44. Nxd7+ Kd6 45. Kxg4 Kxd7 46. Kf5 c5 47. Ke5 Kc6 48. b3 b4 49. Ke6 Kb6 50. Kd5 Kb5 51. Kd6 c4 52. bxc4+ Kxc4 53. Kc6 Kc3 54. Kb5 Kxc2 55. Kxb4 Kd3 56. Kc5 Ke4 57. Kc6 Ke5 58. Kb7 Kd6 59. Kxa7 Kc7 60. Ka8 Kc8 61. a7 Kc7 1/2-1/2
2023.12.12 Titled Tue 12th Dec Early
713993 Koellner, Ruben Gideon (2490) Dann, M (2475) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 Bd6 5. Bd3 O-O 6. O-O b6 7. Ne5 c5 8. f4 Ba6 9. Qf3 Bxd3 10. cxd3 cxd4 11. exd4 Qc7 12. g4 Nc6 13. Qf2 Bxe5 14. fxe5 Nxg4 15. Qg3 f5 16. Nf3 Kh8 17. Qh4 Nh6 18. Bxh6 gxh6 19. Rac1 Rg8+ 20. Kh1 Rg6 21. Rf2 Qd7 22. Rfc2 Nb4 23. Rc7 Qe8 24. Re7 Qg8 25. Rcc7 Nxd3 26. h3 Re8 27. Red7 b5 28. Rxa7 b4 29. a4 Rc8 30. Rac7 Rxc7 31. Rxc7 Rg7 32. Qf6 Nf2+ 33. Kh2 Ne4 34. Qxg7+ Qxg7 35. Rxg7 Kxg7 36. a5 Nc3 37. bxc3 1-0
2023.12.12 Titled Tue 12th Dec Early
714311 Koellner, Ruben Gideon (2490) Iljin, T (2285) 1-0
1. d4 Nf6 2. Nf3 c5 3. e3 g6 4. Nbd2 Bg7 5. dxc5 O-O 6. a3 a5 7. Rb1 a4 8. b4 axb3 9. cxb3 d6 10. cxd6 Qxd6 11. Bb2 Bf5 12. Rc1 Nc6 13. Nc4 Qe6 14. Ng5 Qd7 15. Qxd7 Nxd7 16. Bxg7 Kxg7 17. e4 Bg4 18. h3 h6 19. hxg4 hxg5 20. a4 Nd4 21. Rc3 Nc5 22. Nb6 Nxe4 23. Rch3 Rad8 24. Rh7+ Kf6 25. Bc4 Nc2+ 26. Ke2 Rd2+ 27. Kf3 Ke5 28. Rf1 Nd4+ 29. Ke3 Nc2+ 30. Kf3 f5 31. Rxe7+ Kd6 32. Re6+ Kc5 33. gxf5 gxf5 34. b4+ Kxb4 35. Rb1+ Kc3 36. Rb3+ Kd4 37. Be2 g4+ 38. Kf4 Rxe2 39. f3 gxf3 40. gxf3 Nc5 41. Rxe2 Nxb3 42. Rxc2 Na1 43. Rb2 Rd8 44. Rd2+ Kc5 45. Rxd8 Kxb6 46. Rd2 Nb3 47. Rb2 Ka5 48. Rxb3 b5 49. Rxb5+ Kxa4 50. Rxf5 Ka3 51. Re5 Kb4 52. Kf5 1-0
2023.12.12 Titled Tue 12th Dec Early
714457 Demchenko, A (2609) Koellner, Ruben Gideon (2490) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. O-O h6 8. Be3 Qc7 9. Nh4 g6 10. a5 Nf8 11. d5 Ng4 12. Nf3 Nxe3 13. fxe3 c5 14. a6 Bd7 15. axb7 Qxb7 16. Nxe5 dxe5 17. d6 Bg5 18. Bd5 Qxb2 19. Qd2 Rb8 20. Rfb1 Qxb1+ 21. Nxb1 Ne6 22. Nc3 O-O 23. Rxa7 Rfd8 24. Qf2 Rb6 25. h4 Bxe3 26. Qxe3 Rxd6 27. Qxh6 Nf4 28. Qg5 Be6 29. Qxe5 Nxd5 30. Nxd5 Bxd5 31. exd5 Rxd5 32. Qe7 Rf8 33. Rd7 Rf5 34. Rd8 Rxd8 35. Qxd8+ Kh7 36. Qe7 Kg7 37. Kh2 Rd5 38. Kh3 Kg8 39. Qe4 Rf5 40. g4 Rf6 41. Kg3 Re6 42. Qd5 Re3+ 43. Kf4 Rc3 44. Qd2 Rc4+ 45. Kg3 Kg7 46. c3 Ra4 47. Qd5 Ra5 48. Qe5+ Kg8 49. h5 gxh5 50. gxh5 Ra6 51. Qxc5 1-0
2023.12.12 Titled Tue 12th Dec Early
714533 Senft, Sean (2107) Koellner, Ruben Gideon (2490) 0-1
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Ng5 f5 5. Nc3 Be7 6. Nh3 Nf6 7. g3 d5 8. cxd5 Nxd5 9. Bg2 O-O 10. O-O Be6 11. Nf4 Nxf4 12. Bxf4 c6 13. Qd2 Nd7 14. h4 Nf6 15. Rad1 Nd5 16. Be5 Nxc3 17. bxc3 Bd6 18. Bxd6 Qxd6 19. Qf4 Qxf4 20. gxf4 Bxa2 21. Ra1 Bc4 22. Rfb1 b5 23. e3 a5 24. Bf1 Bxf1 25. Kxf1 Kf7 26. Rb2 Rfb8 27. Ke2 Ke6 28. Rab1 Kd5 29. c4+ Kxc4 30. Rc1+ Kd5 31. Rc5+ Kd6 32. Rbc2 Ra6 33. Rxf5 b4 34. Kd2 a4 35. Kc1 b3 36. Rcc5 a3 37. Ra5 b2+ 38. Kb1 a2+ 39. Rxa2 Rxa2 40. Kxa2 b1=Q+ 0-1
2023.12.12 Titled Tue 12th Dec Early
714804 Koellner, Ruben Gideon (2490) Bacrot, E (2683) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 b6 5. Bd3 Bb7 6. Ne5 Nbd7 7. f4 Be7 8. Qf3 c5 9. c3 Qc7 10. O-O a6 11. a4 g6 12. g4 Rf8 13. g5 Nxe5 14. fxe5 Nd7 15. h4 O-O-O 16. Qg4 Kb8 17. Nf3 Ka7 18. Bd2 c4 19. Bc2 Nb8 20. Qg2 Nc6 21. Nh2 h5 22. Rf4 Rde8 23. Raf1 Nd8 24. Nf3 Qd7 25. Qe2 Rg8 26. Ne1 Rg7 27. R4f2 Bf8 28. Ng2 Be7 29. Nf4 Bc6 30. Qd1 Nb7 31. Nh3 Bd8 32. Nf4 Na5 33. Kh2 Re7 34. Kg3 Nb3 35. Bxb3 cxb3 36. Qxb3 Bxa4 37. Qa2 Qb5 38. Ra1 Bb3 39. Qb1 Rc7 40. Nd3 a5 41. Nc1 Bd1 42. b3 Kb8 43. Kg2 Ra7 44. Rf1 Bg4 45. Qd3 Qxd3 46. Nxd3 Be2 47. Nb2 Bxf1+ 48. Kxf1 b5 49. Ke2 Rg8 50. Kd3 Re8 51. e4 dxe4+ 52. Kxe4 Ree7 53. c4 bxc4 54. Nxc4 Reb7 55. Ra3 Rb5 56. Nd6 Rd5 57. Nc4 Bc7 58. Bc3 Kb7 59. b4 axb4 60. Rxa7+ Kxa7 61. Bxb4 Bb6 62. Bc3 Rb5 63. Nd6 Rb3 64. Be1 Rb2 65. Kd3 Rb1 66. Bf2 Rf1 67. Ke2 Ra1 68. Nxf7 Ra2+ 69. Kf3 Ra3+ 70. Ke4 Ra2 71. Kf3 Ra3+ 72. Ke4 Ra2 73. Kf3 1/2-1/2
2023.12.12 Titled Tue 12th Dec Early
714834 Dyulgerov, Volen (2200) Koellner, Ruben Gideon (2490) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Nh4 g6 9. f4 exd4 10. Bxf7+ Kxf7 11. Qxd4 Qb6 12. e5 Qxd4+ 0-1
2023.12.12 Titled Tue 12th Dec Early
715042 Dragnev, Valentin (2579) Koellner, Ruben Gideon (2490) 0-1
1. Nf3 Nf6 2. g3 d5 3. Bg2 Nbd7 4. d4 e6 5. O-O b5 6. a4 b4 7. c4 bxc3 8. Nxc3 a5 9. Bf4 c6 10. Re1 Bb4 11. e4 O-O 12. Nd2 Ba6 13. Rc1 Qb6 14. Be3 Rab8 15. e5 Ne8 16. Qg4 Bd3 17. h4 Bf5 18. Qe2 h6 19. Kh2 Be7 20. b3 Ba3 21. Rcd1 Bc2 22. Qg4 Bxd1 23. Nxd1 Kh8 24. Qh5 f6 25. Bh3 fxe5 26. dxe5 Bc5 27. Bxe6 Bxe3 28. Nxe3 Rxf2+ 29. Kh3 Nf8 30. Bf7 Rxd2 31. Bxe8 Qd8 32. Bf7 Qd7+ 33. Ng4 Ne6 34. Qf5 Ng5+ 35. Qxg5 hxg5 36. e6 Qe7 37. Re5 Rxb3 38. hxg5 Rdd3 39. Kh2 Rxg3 0-1
2023.12.08 4th elllobregat Open 2023
719241 Koellner, Ruben Gideon (2490) Suyarov, Mukhammadzokhid (2359) 0-1
1. d4 e6 2. Nf3 Nf6 3. e3 b6 4. Bd3 Bb7 5. O-O d5 6. Ne5 Bd6 7. f4 O-O 8. Nd2 Ne4 9. Qf3 f5 10. Qh3 Qe7 11. Ndf3 Nd7 12. Bd2 Bxe5 13. fxe5 c5 14. Be1 c4 15. Bxe4 dxe4 16. Bh4 Qe8 17. Nd2 Rc8 18. Nb1 b5 19. Nc3 Nb6 20. g4 b4 21. Ne2 c3 22. bxc3 Ba6 23. Rae1 Qg6 24. Be7 fxg4 25. Rxf8+ Rxf8 26. Qh4 Rf3 27. Nf4 Qf5 28. Qg5 Qxg5 29. Bxg5 Kf7 30. cxb4 h6 31. Bd8 g5 32. Nh5 Nd5 33. Nf6 Nxe3 34. Nxe4 Nxc2 35. Rb1 Kg6 36. Nc5 Bc4 37. Rc1 Ne3 38. Ne4 Bxa2 39. Nd2 Rf4 40. Be7 Rxd4 41. Bc5 Rxd2 42. Bxe3 Rb2 43. Rf1 Bd5 44. Rf6+ Kh5 45. Rf2 Rxb4 46. Bxa7 Re4 47. Bc5 Rxe5 48. Rf6 Rf5 49. Be7 Rxf6 50. Bxf6 Kg6 51. Be7 h5 52. Kf2 h4 53. Bd6 Kf5 54. Bc7 Bc6 55. Kg1 e5 56. Bd6 Bf3 57. Kf2 e4 58. Bc7 g3+ 59. hxg3 h3 60. g4+ Kxg4 61. Bh2 Kf5 62. Ke3 Ke6 63. Kd4 Kd7 64. Ke3 Kc6 65. Bg3 Kd5 66. Bh2 Kc4 67. Be5 g4 68. Bh2 Kc3 69. Bg3 Kc2 70. Bf4 Kd1 71. Bg3 Bg2 72. Kf4 Kd2 73. Kxg4 e3 74. Bf4 Kd3 75. Kg3 e2 76. Kf2 h2 77. Bxh2 Kd2 0-1
2023.12.07 4th elllobregat Open 2023
719185 Vetokhin, Savva (2396) Koellner, Ruben Gideon (2490) 1/2-1/2
1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nbd7 5. Bg5 Bb4 6. cxd5 exd5 7. e3 c5 8. Bd3 c4 9. Bf5 Qa5 10. Qc2 O-O 11. O-O Bxc3 12. Qxc3 Qxc3 13. bxc3 h6 14. Bh4 g5 15. Bg3 Nb6 16. Bc2 Ne4 17. Bxe4 dxe4 18. Nd2 f5 19. Bd6 Re8 20. Be5 Be6 21. f3 exf3 22. gxf3 Nd7 23. Bd6 Bd5 24. Rfe1 Re6 25. Bg3 Rae8 26. e4 fxe4 27. fxe4 Bxe4 28. Nxc4 Bd5 29. Rxe6 Rxe6 30. Nd6 Nb6 31. a4 Nc4 1/2-1/2
2023.12.06 4th elllobregat Open 2023
719137 Koellner, Ruben Gideon (2490) Villa Tornero, Alex (2310) 1-0
1. d4 Nf6 2. Nf3 e6 3. c3 d5 4. Bf4 Bd6 5. e3 c5 6. Ne5 Qc7 7. Nd2 Nc6 8. Ndf3 Ne4 9. Bd3 cxd4 10. cxd4 Nb4 11. Bb5+ Kf8 12. O-O f6 13. a3 g5 14. Bxg5 Nc6 15. Bh6+ Ke7 16. Nd3 Rg8 17. Bf4 e5 18. Bxc6 exf4 19. Bxd5 Bh3 20. Nfe1 Bg4 21. Qc2 Qxc2 22. Nxc2 Nd2 23. Bxg8 Rxg8 24. exf4 Kf7 25. Rfd1 Nb3 26. Ne3 Be2 27. Rab1 Nxd4 28. Ne1 Bc5 29. Rd2 Rd8 30. Kh1 Re8 31. b4 Bb6 32. N1c2 Nxc2 33. Nxc2 Bb5 34. Kg1 Re4 35. g3 h5 36. Re1 Rc4 37. Ne3 Re4 38. Nc2 Rc4 39. Ne3 Re4 40. Rdd1 Bc6 41. Nf5 1-0
2023.12.05 4th elllobregat Open 2023
719093 Mathieu, Phileas (2351) Koellner, Ruben Gideon (2490) 0-1
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 b5 7. Bc2 d5 8. a4 dxe4 9. axb5 exf3 10. Qxf3 e4 11. Bxe4 Ne5 12. Qe2 O-O 13. Bxa8 Nd3 14. b4 Re8 15. Qxe8+ Qxe8 16. bxc5 Qxb5 17. Na3 Qxc5 18. Nc2 Qe5 19. Ne3 h5 20. Ra4 c5 21. f3 Qb8 22. Bc6 Qb6 23. Ba8 Qb1 24. Be4 Nxe4 25. Rxe4 Be6 26. Ba3 Qb3 27. Bxc5 Nxc5 28. Rd4 Qb2 29. f4 g6 30. f5 gxf5 31. Nd1 Qb6 32. Ne3 Nb3 33. Rb4 Qc5 34. Rxf5 Bxf5 35. Rxb3 Be6 36. d4 Qg5 37. c4 Bxc4 0-1
2023.12.05 Titled Tue 5th Dec Late
723407 Koellner, Ruben Gideon (2490) Degtiarev, E (2382) 1/2-1/2
1. Nf3 d5 2. g3 Nf6 3. Bg2 g6 4. O-O Bg7 5. d3 O-O 6. Nbd2 c5 7. e4 dxe4 8. dxe4 Nc6 9. c3 Qc7 10. Qe2 e5 11. a4 Rd8 12. Ne1 b6 13. Nc2 a5 14. Ne3 Ba6 15. Ndc4 Rd7 16. Nd5 Qa7 17. Bg5 Nxd5 18. exd5 Nd8 19. Rfd1 Nb7 20. Qe4 Bxc4 21. Qxc4 Nd6 22. Qg4 f5 23. Qe2 Re8 24. h4 Qb8 25. Re1 Nf7 26. Be3 e4 27. Red1 Red8 28. Qc4 Ne5 29. Qb3 Ng4 30. Bg5 Bf6 31. Bf1 Bxg5 32. hxg5 Kg7 33. Be2 Ne5 34. Kg2 Qd6 35. Rd2 Rf8 36. Rh1 f4 37. gxf4 Rxf4 38. c4 Nf3 39. Qc3+ Kg8 40. Bxf3 Rxf3 41. Qc2 Qf4 42. Re2 Qg4+ 43. Kf1 e3 44. Rxe3 Rxe3 45. fxe3 Qf3+ 46. Kg1 Qg3+ 47. Qg2 Qxe3+ 48. Qf2 Qxg5+ 49. Kh2 Rf7 50. Qe2 Qh4+ 51. Kg2 Qg5+ 52. Kh2 Qf4+ 53. Kg2 Qd4 54. Rh3 Qf4 55. Rf3 Qg4+ 56. Kf2 Qh4+ 57. Kg2 Qg4+ 58. Kf2 Rxf3+ 59. Qxf3 Qxf3+ 60. Kxf3 Kf7 61. Kf4 Kf6 62. Kg4 h5+ 63. Kh4 Kf5 64. b3 Kf6 65. Kh3 Kf5 66. Kg3 g5 67. Kf3 h4 68. Kg2 g4 69. Kh2 Ke5 70. Kg2 Kd6 71. Kh2 Ke5 72. Kg2 Kf5 73. Kh2 h3 74. Kg3 Ke5 75. Kh2 Kf5 76. Kg3 Ke5 77. Kh2 Kf5 1/2-1/2
2023.12.05 Titled Tue 5th Dec Late
723417 Cardozo, C (2043) Koellner, Ruben Gideon (2490) 0-1
1. d4 d6 2. c3 e5 3. dxe5 dxe5 4. Qxd8+ Kxd8 5. b3 Be6 6. Bb2 c6 7. Nd2 Nd7 8. O-O-O Kc7 9. e3 f6 10. Bc4 Bxc4 11. Nxc4 Nh6 12. h3 a5 13. Ne2 Nc5 14. Ng3 b5 15. Nd2 Nd3+ 16. Kc2 Nxf2 17. Nde4 Nxh1 18. Rxh1 Be7 19. Nh5 Nf5 20. Bc1 Rhg8 21. g4 Nd6 22. Nd2 g6 23. Ng3 f5 24. Rf1 Raf8 25. Nf3 fxg4 26. hxg4 e4 27. Nd2 Rxf1 28. Ngxf1 h5 29. Ng3 h4 30. Ngxe4 Nxe4 31. Nxe4 h3 32. Nf2 h2 33. Nh1 Rf8 0-1
2023.12.05 Titled Tue 5th Dec Late
723750 Hakobyan, Aram (2616) Koellner, Ruben Gideon (2490) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. a5 Nf8 10. d5 Ng6 11. h3 O-O 12. Bb3 a6 13. Be3 Bd7 14. Nd2 cxd5 15. Bxd5 Be6 16. Bb6 Qc8 17. Ra4 Nf4 18. Rc4 Qe8 19. Bxb7 Bxc4 20. Nxc4 Rb8 21. Bxa6 Nd7 22. Bc7 Ra8 23. Bb5 f5 24. exf5 Rxf5 25. Nd5 Bf8 26. Ncb6 Qg6 27. Nxf4 exf4 28. Bxd7 Rg5 29. Bg4 h5 30. Bf3 Raxa5 31. Nd7 Ra7 32. Nxf8 Kxf8 33. Bxd6+ Kg8 34. Bxf4 Rf5 35. Bg3 Raf7 36. Qd3 h4 37. Bxh4 Qh6 38. Bg3 Qg5 39. Re8+ Kh7 40. Be4 g6 41. Bxf5 gxf5 42. Qd8 Qc1+ 43. Kh2 Qh6 44. Rh8+ Kg6 45. Rxh6+ Kxh6 46. Qh4+ Kg7 47. Bf4 Kf8 48. Qg5 Ke8 49. Bd6 Kd7 50. Qg8 Ke6 51. Qe8+ Kf6 52. Be5+ Kg6 53. Qg8+ Kh6 54. Qxf7 f4 55. Bxf4# 1-0
2023.12.04 4th elllobregat Open 2023
719036 Koellner, Ruben Gideon (2490) Wong, Zhenyong Jayden (2402) 1/2-1/2
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 Nc6 7. b5 Na5 8. Bb2 a6 9. a4 Nxc4 10. Nxc4 dxc4 11. Bxc4 axb5 12. axb5 Rxa1 13. Qxa1 Ne4 14. Be2 Bd7 15. O-O Nd6 16. d5 Bxb2 17. Qxb2 Bg4 18. Ne5 Bxe2 19. Qxe2 Qa8 20. Nf3 c6 21. dxc6 bxc6 22. bxc6 Qxc6 23. Qb2 Rc8 24. h3 Qc3 25. Qxc3 1/2-1/2
2023.12.03 4th elllobregat Open 2023
718970 Rakhmatullaev, Almas (2383) Koellner, Ruben Gideon (2490) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 O-O 7. O-O c6 8. h3 b6 9. Qe2 a6 10. Rd1 Qc7 11. d5 cxd5 12. Bxd5 Rb8 13. Bc4 Ra8 14. Bd5 Bb7 15. Bxb7 Qxb7 16. Bg5 h6 17. Bxf6 Nxf6 18. Nh2 h5 19. Nf1 Rac8 20. Qd3 Rc5 21. Ne3 Rfc8 22. Ra3 Bf8 23. Rb3 R5c6 24. Ned5 Nd7 25. Qf3 g6 26. g4 hxg4 27. Qxg4 Kg7 28. Ne2 Nf6 29. Nxf6 Kxf6 30. Rf3+ Ke7 31. Nc3 Rxc3 32. Rxc3 Rxc3 33. bxc3 Qc6 34. Rb1 Kf6 35. Qf3+ Kg7 36. Rb4 a5 37. Rb5 Qc4 38. Rxb6 Qxa4 39. Rb7 Qa2 40. Qd3 Qa1+ 41. Kg2 Qc1 42. h4 Qf4 43. Qf3 1-0
2023.12.02 4th elllobregat Open 2023
718888 Koellner, Ruben Gideon (2490) Narayanan, SL (2677) 0-1
1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Nc6 5. Nbd2 e6 6. c3 cxd4 7. exd4 Nh5 8. Be3 Bd6 9. Ne5 Nf6 10. f4 Qb6 11. Qb3 Ng8 12. Qxb6 axb6 13. a3 f6 14. Nd3 Nge7 15. g3 Bd7 16. Bh3 Na5 17. Nb4 b5 18. O-O Nc4 19. Nxc4 bxc4 20. Rae1 Kf7 21. Rf2 Bxb4 22. axb4 h5 23. Rfe2 f5 24. Bg2 Ra2 25. Bf3 Ng8 26. h3 Nf6 27. Bc1 Ra1 28. Kf2 Rha8 29. Be3 Rxe1 30. Rxe1 Ra2 31. Bc1 Ba4 32. Ke3 Bc2 33. Rg1 Ra1 34. Kd2 Be4 35. Bd1 Ra8 36. h4 Ra1 37. Be2 Ke7 38. Bd1 Bd3 39. Bf3 g6 40. Ke3 Kd6 41. Kd2 Be4 42. Bd1 Bb1 43. Bf3 Ba2 44. Re1 Bb3 45. Ke3 Nd7 46. Kd2 Nb6 47. Bd1 Na4 48. Bc2 Nb6 49. Bd1 Kd7 50. Bc2 Nc8 51. Bd1 Nd6 52. Bc2 Ke7 53. Rg1 Kf6 54. Re1 Nb5 55. Re3 Nd6 56. Re1 Ne4+ 57. Bxe4 fxe4 58. Ke2 Kf5 59. Kf2 Rb1 60. Rg1 Bc2 61. Ke3 Bd3 62. Kf2 Kg4 63. Ke3 Ra1 64. Kf2 Ra8 65. Be3 Kf5 66. Bc1 Ra2 67. Re1 Kf6 68. Rg1 Ke7 69. Ke3 Ra1 70. Re1 Kd7 71. Bd2 Ra2 72. Bc1 Kc6 73. Kd2 Kb5 74. Rg1 Ra1 75. Re1 Ka4 76. Rg1 Kb3 77. Re1 Ra2 78. Kd1 Ra1 79. Kd2 Ra8 80. Kd1 Bc2+ 81. Ke2 Rd8 82. Ke3 Bd3 83. Kd2 Rf8 84. Kd1 Rf7 85. Rg1 e3 86. Bxe3 Kxb2 87. Bd2 Rf8 88. Be1 Ra8 89. Kd2 Kb3 90. Ke3 Ra1 91. b5 Bf5 92. b6 Ra6 93. Bd2 Rxb6 94. Rc1 Ra6 95. Kf2 b5 96. Ke3 Kb2 97. Kf2 Ra3 98. Ke2 Bc2 99. Kf2 Rxc3 100. Bxc3+ Kxc3 0-1
2023.12.01 4th elllobregat Open 2023
718856 Begmuratov, Khumoyun (2371) Koellner, Ruben Gideon (2490) 0-1
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 b5 7. Bb3 d6 8. d4 Bb6 9. a4 Bg4 10. Bg5 Rb8 11. axb5 axb5 12. d5 Ne7 13. Qd3 Ng6 14. Nbd2 h6 15. Be3 Bxe3 16. Qxe3 O-O 17. Ne1 Bd7 18. f3 h5 19. Nd3 h4 20. Qg5 Qc8 21. Ra7 Ra8 22. Rfa1 Rxa7 23. Rxa7 Qb8 24. Qe3 Nh5 25. Nf1 Ngf4 26. Nxf4 Nxf4 27. Ra1 Qd8 28. g3 Qg5 29. Kf2 hxg3+ 30. hxg3 Nh3+ 31. Ke1 Qg6 32. Ra7 f5 33. Rxc7 f4 34. Qd2 fxg3 35. Qg2 Ng5 36. Bd1 Nxf3+ 37. Bxf3 Rxf3 38. Qxf3 g2 39. Rxd7 g1=Q 40. Rd8+ Kh7 41. Qh3+ Qh6 42. Qxh6+ gxh6 43. Rxd6 Qh1 44. Kf2 Qxe4 45. Ne3 Qf4+ 46. Ke2 e4 47. Rd7+ Kg6 0-1
2023.11.30 4th elllobregat Open 2023
718813 Koellner, Ruben Gideon (2490) Wahedi, A (2275) 1-0
1. d4 e6 2. Bf4 c5 3. e3 Nc6 4. c3 Qb6 5. Qb3 Qxb3 6. axb3 cxd4 7. exd4 d6 8. Nf3 f6 9. d5 exd5 10. Na3 Be6 11. Nb5 Kd7 12. Nbd4 Bf7 13. b4 Nge7 14. Be3 Ne5 15. Be2 Nc4 16. Bc1 g6 17. O-O Bg7 18. b5 Rhc8 19. b3 Ne5 20. Bd2 Re8 21. Ra2 Nc8 22. Rfa1 Rb8 23. Ne1 Kd8 24. Nec2 Nd7 25. Be3 Nc5 26. Nb4 f5 27. Bf1 Kd7 28. g3 h6 29. Rc1 Re7 30. h4 Ne4 31. Kh2 Nf6 32. Kg1 Ne4 33. Kh2 Nf6 34. Kg2 Ng4 35. Bd2 h5 36. Nd3 Ke8 37. f3 Ne3+ 38. Kf2 Nxf1 39. Rxf1 Kf8 40. Nf4 Re8 41. Be3 b6 42. Nc6 Rb7 43. Bd4 Rc7 44. Rd1 Bxd4+ 45. Rxd4 Ne7 46. Rxa7 Rxa7 47. Nxa7 Ra8 48. Ra4 Ke8 49. Ne2 Kd7 50. Nd4 Kc7 51. Nac6 Rxa4 52. bxa4 Ng8 53. Ke3 Nf6 54. Kf4 Nh7 55. Nb4 Kd7 56. Ne2 Ke6 57. Ke3 g5 58. hxg5 Nxg5 59. Nf4+ Kd7 60. Nbxd5 Kc8 61. Nxb6+ Kb7 62. Nbd5 Be8 63. c4 Nf7 64. Nf6 1-0
2023.11.28 Titled Tue 28th Nov Early
728461 Koellner, Ruben Gideon (2488) Koridze, Lile (2161) 0-1
1. d4 Nf6 2. Bg5 e6 3. Nd2 d5 4. e3 h6 5. Bh4 c5 6. c3 Nc6 7. Ngf3 Bd6 8. Bd3 O-O 9. O-O Qe7 10. dxc5 Bxc5 11. e4 g5 12. Nxg5 hxg5 13. Bxg5 Kg7 14. Qf3 Rh8 15. exd5 Ne5 16. Qg3 Ng6 0-1
2023.11.28 Titled Tue 28th Nov Early
728700 Batbold, Nyamsuren (2143) Koellner, Ruben Gideon (2488) 0-1
1. d4 d6 2. c4 e5 3. Nc3 exd4 4. Qxd4 Nc6 5. Qd1 g6 6. Nf3 Bg7 7. h4 Nf6 8. e3 O-O 9. Be2 Re8 10. O-O Bf5 11. a3 Ne4 12. Nd5 Ne7 13. Nf4 h5 14. Bd3 Nc6 15. Ra2 Ne5 16. Bxe4 Bxe4 17. Nxe5 dxe5 18. Ne2 Qxh4 19. Ng3 Bc6 20. b3 Rad8 21. Rd2 Rxd2 22. Qxd2 Rd8 23. Qe2 Qg4 24. Re1 Qxe2 25. Nxe2 Be4 26. b4 Bd3 27. Rd1 Bf6 0-1
2023.11.28 Titled Tue 28th Nov Early
729018 Koellner, Ruben Gideon (2488) Osmak, Yuliia (2449) 0-1
1. c3 d5 2. Nf3 Nf6 3. g3 Bf5 4. Bg2 e6 5. O-O h6 6. d3 c6 7. Nbd2 Nbd7 8. Re1 Bh7 9. e4 Nc5 10. e5 Nfd7 11. d4 Nd3 12. Re3 Be7 13. Nf1 Nxc1 14. Rxc1 O-O 15. Ne1 c5 16. f4 Rc8 17. Nf3 Qa5 18. a3 cxd4 19. cxd4 Nb6 20. Rec3 Rxc3 21. Rxc3 Nc4 22. Qb3 b5 23. N1d2 Qb6 0-1
2023.11.28 Titled Tue 28th Nov Late
730949 Koellner, Ruben Gideon (2488) Rose, F (2091) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 Nc6 5. Nbd2 cxd4 6. exd4 Bg4 7. Bb5 a6 8. Bxc6+ bxc6 9. Qa4 Qc7 10. Ne5 Bd7 11. Nxd7 Nxd7 12. O-O e6 13. b4 Bd6 14. h3 O-O 15. Nb3 Nb6 16. Qa5 Nc4 17. Qxc7 Bxc7 18. a4 a5 19. Nd2 Nxd2 20. Bxd2 e5 21. bxa5 exd4 22. cxd4 Bxa5 23. Bxa5 Rxa5 24. Rfc1 Rc8 25. Kf1 Kf8 26. Ra3 Ke7 27. Ke2 Kd7 28. Rb1 Rc7 29. Kd3 Rca7 30. Rb4 Kd6 31. Kc3 R5a6 32. Kb3 c5 33. dxc5+ Kxc5 34. Ra2 Kd6 35. Rc2 Rc6 36. Rxc6+ Kxc6 37. Rb8 d4 38. Kb4 h5 39. Rd8 Rb7+ 40. Kc4 Ra7 41. Kb4 Rb7+ 42. Kc4 Ra7 43. Kb3 Kc5 44. Rc8+ Kd5 45. Rd8+ Ke4 46. Kb4 Rb7+ 47. Kc5 Rc7+ 48. Kb6 Rc1 49. a5 Rb1+ 50. Kc5 Rc1+ 51. Kb4 Rb1+ 52. Kc4 Ra1 53. Rxd4+ Ke5 54. Rd5+ Ke6 55. Rxh5 f5 56. Kb5 Rb1+ 57. Ka6 Rb2 58. Rg5 Kf6 59. f4 g6 60. g3 Rb3 61. h4 Rb4 62. Ka7 Rb1 63. a6 Rb4 64. Ka8 Rb1 65. h5 gxh5 66. Rxh5 Rb3 67. Rg5 Rb1 68. a7 Rb2 69. Rg8 Kf7 70. Rb8 Ra2 71. Kb7 Rb2+ 72. Kc6 Rc2+ 73. Kd5 Ra2 74. a8=Q 1-0
2023.11.28 Titled Tue 28th Nov Late
730991 Wang, Alexander J (1851) Koellner, Ruben Gideon (2488) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Nf3 Bd6 7. Bg5 Be6 8. Rd1 Nd7 9. Bxf6+ gxf6 10. Nd5 f5 11. exf5 Bxf5 12. Bd3 e4 13. Nd4 Bg6 14. Be2 c6 15. Ne3 Kc7 16. c3 Rad8 17. Bc4 Ne5 18. Be2 Bc5 19. O-O Rd7 20. Nc4 Nxc4 21. Bxc4 Rhd8 22. b3 Bxd4 23. Rxd4 Rxd4 24. cxd4 Rxd4 25. h4 Rd2 26. a4 a6 27. Rc1 Kd6 28. g4 b5 29. axb5 axb5 30. Bf1 f5 31. h5 Bf7 32. gxf5 Bxb3 33. f6 Rd1 34. Rc3 Bc4 35. f7 Ke7 36. Kg2 Bxf1+ 0-1
2023.11.28 Titled Tue 28th Nov Late
731165 Koellner, Ruben Gideon (2488) Paravyan, D (2612) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 e6 5. Nbd2 Nbd7 6. Bd3 Bd6 7. O-O O-O 8. Re1 e5 9. e4 dxe4 10. Nxe4 Nxe4 11. Bxe4 exd4 12. cxd4 Nf6 13. Bg5 h6 14. dxc5 Bxc5 15. Qxd8 Rxd8 16. Bxf6 gxf6 17. Rac1 Bb6 18. Rcd1 Be6 19. b3 Rxd1 20. Rxd1 Rc8 21. g3 Bh3 22. Nh4 Re8 23. Bf3 Re5 24. Ng2 Rc5 25. Nf4 Bf5 26. Rd2 Bc7 27. Nd5 Be5 28. Ne7+ Kh7 29. Nxf5 b5 30. Kg2 b4 31. Rd7 Ra5 32. Bh5 Bf4 33. Rxf7+ Kh8 34. Bg6 1-0
2023.11.28 Titled Tue 28th Nov Late
731417 Koellner, Ruben Gideon (2488) Ibarra Jerez, JC (2567) 1/2-1/2
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 O-O 5. c3 c5 6. dxc5 Qc7 7. b4 b6 8. Ba3 bxc5 9. bxc5 Na6 10. c6 Qxc6 11. Bxe7 Re8 12. Bxf6 Bxf6 13. Bc4 Rxe4+ 14. Nxe4 Qxe4+ 15. Qe2 Bxc3+ 16. Kf1 Qxe2+ 17. Kxe2 Bxa1 18. Rxa1 Nc7 19. Rd1 d5 20. Bxd5 Ba6+ 21. Ke3 Re8+ 22. Kf4 Re2 23. Bb3 Re7 24. Rd6 Kg7 25. Ng5 f6 26. Ne6+ Nxe6+ 27. Rxe6 Rxe6 28. Bxe6 Kf8 29. a3 Ke7 30. Bg8 h6 31. h4 Bd3 32. g3 Kd6 33. Bb3 Kc5 34. Ke3 Bf5 35. Bf7 g5 36. hxg5 fxg5 37. f4 Kd6 38. Kd4 gxf4 39. gxf4 Bg4 40. Ke4 Ke7 41. Bc4 Kf6 42. Ke3 h5 43. Bd3 h4 44. Kf2 Bf5 45. Be2 Bh3 46. Bd3 Bf5 47. Be2 Ke6 48. Bf3 Kd6 49. Ke3 Kc5 50. Be2 a5 51. Bf1 Kd5 52. Be2 h3 53. Kf3 Kd4 54. Kg3 Ke3 55. Bf1 h2 56. Bg2 Bd3 57. f5 Bxf5 58. Kxh2 Kd4 59. Bc6 Kc3 60. Kg3 Kb3 61. Kf4 Bc2 62. Ke3 Kxa3 63. Kd2 Ba4 64. Bxa4 Kxa4 65. Kc3 Ka3 66. Kc2 Ka2 67. Kc1 a4 68. Kc2 Ka1 69. Kc1 a3 70. Kc2 a2 71. Kc1 1/2-1/2
2023.11.28 Titled Tue 28th Nov Late
731441 Bluebaum, M (2670) Koellner, Ruben Gideon (2488) 1-0
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Nbd7 8. h3 h6 9. Bf4 Nb6 10. Nf3 Bd6 11. Ne5 Be6 12. Bg3 Qe7 13. O-O O-O 14. f4 Nc4 15. Qe2 c5 16. f5 Bd7 17. Nxd5 Nxd5 18. Bxc4 Nf6 19. Ng6 Qe4 20. Bxd6 1-0
2023.11.28 Titled Tue 28th Nov Late
731626 Gokerkan, Cem Kaan (2523) Koellner, Ruben Gideon (2488) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 c6 6. g4 h6 7. h4 exd4 8. Qxd4 Qb6 9. g5 hxg5 10. hxg5 Ne5 11. Qd1 Nfg4 12. Rg2 Rh1 13. Nxe5 Nxe5 14. Rg3 Qa6 15. Qe2 Qxe2+ 16. Nxe2 Bg4 17. f4 Nf3+ 18. Kf2 Nh2 19. Bg2 Rd1 20. Nc3 Rd4 21. Kg1 d5 22. Kxh2 O-O-O 23. Rxg4 dxe4 24. Nxe4 Rd1 25. b3 Ba3 26. Bxa3 Rxa1 27. Bb2 Rxa2 28. Bxg7 Rxc2 29. f5 a5 30. g6 fxg6 31. fxg6 1-0
2023.11.28 Titled Tue 28th Nov Late
731767 Koellner, Ruben Gideon (2488) Pinheiro, I (2306) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 a5 5. c4 c6 6. b3 Bf5 7. Bb2 Bg7 8. Be2 O-O 9. O-O Ne4 10. Rc1 a4 11. cxd5 cxd5 12. bxa4 Nxd2 13. Nxd2 Nc6 14. Qb3 Ra7 15. Bb5 Na5 16. Qb4 Nc6 17. Qc5 Ra8 18. Ba3 Re8 19. Bxc6 bxc6 20. Qxc6 Qa5 21. Nf3 Be4 22. Bc5 Bxf3 23. gxf3 e5 24. Qxd5 exd4 25. exd4 Qxa4 26. a3 Rad8 27. Qc4 Qd7 28. Rfd1 Qh3 29. Rc3 Bh6 30. Qf1 Qh5 31. Qg2 Rd5 32. Kh1 Bf4 33. Rg1 Rg5 0-1
2023.11.21 Titled Tue 21st Nov Early
736420 Dwilewicz, K (2112) Koellner, Ruben Gideon (2488) 0-1
1. e4 d6 2. Nc3 Nf6 3. f4 e5 4. d4 exd4 5. Qxd4 Nc6 6. Qd3 d5 7. e5 Nb4 8. Qe2 Ne4 9. Nxe4 dxe4 10. a3 Nd5 11. Qxe4 g6 12. Bc4 c6 13. Nf3 Bf5 14. Qe2 Bc5 15. h3 h5 16. Bd3 Bxd3 17. Qxd3 Qb6 18. b4 Bf2+ 19. Ke2 O-O-O 20. Qc4 Bg3 21. Rf1 Rhe8 22. b5 Qxb5 23. Qxb5 Nc3+ 24. Ke3 cxb5 25. Nd2 Nd5+ 26. Kf3 Bxf4 27. Ne4 Bxe5 28. Rb1 f5 29. Nc5 Nc3 30. Bg5 Rd5 31. Nd3 Nxb1 32. Rxb1 Bd6 33. a4 bxa4 34. Bd2 a3 35. Rb3 a2 36. Bc3 Rxd3+ 37. cxd3 Re1 38. Bxe1 a1=Q 39. Rc3+ Kd7 40. Bd2 Qd1+ 41. Ke3 f4+ 0-1
2023.11.21 Titled Tue 21st Nov Early
736634 Koellner, Ruben Gideon (2488) Nakamura, Hi (2778) 0-1
1. d4 a5 2. e4 c6 3. Nf3 d5 4. e5 Bf5 5. Bd3 Bxd3 6. Qxd3 e6 7. O-O c5 8. dxc5 Bxc5 9. Nc3 Nc6 10. Nb5 Nh6 11. Be3 Be7 12. Bxh6 gxh6 13. a3 O-O 14. Rad1 Qb6 15. c4 Rfd8 16. a4 Bf8 17. Qe2 dxc4 18. Qxc4 Bg7 19. Rde1 Rd7 20. Qg4 Qc5 21. Nd6 Nxe5 22. Rxe5 Qxd6 23. Rb5 b6 24. Ne5 Rc7 25. Rd1 Rd8 26. Re1 Qd2 27. Rf1 Rc1 28. g3 Rd5 29. Rxc1 Qxc1+ 30. Kg2 Rxb5 31. axb5 Qc5 32. Nd3 Qxb5 33. Nf4 Qxb2 34. Nh5 Qe5 35. Qf3 Qd5 36. Qxd5 exd5 37. Nf4 a4 0-1
2023.11.21 Titled Tue 21st Nov Early
736974 Sreyas, Payyappat (2080) Koellner, Ruben Gideon (2488) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. f4 Bb4 7. Bd2 exf4 8. O-O-O Bg4 9. Be2 Nbd7 10. h3 Bxe2 11. Ngxe2 g5 12. e5 Bxc3 13. Nxc3 Nh5 14. Ne4 Kc8 15. Nxg5 Nxe5 16. Bc3 f6 17. Bxe5 fxe5 18. Rhe1 Re8 19. Nf7 b6 20. Nxe5 Kb7 21. Rd7 Nf6 22. Rf7 Re6 23. Nd3 Rxe1+ 24. Nxe1 Nd5 25. Rxh7 Re8 26. Kd2 Ne3 27. b3 Nf1+ 28. Kd1 Ne3+ 29. Kc1 Nd5 30. Nd3 Re2 31. Rd7 Ne3 32. Nxf4 Rxc2+ 33. Kb1 Rf2 34. g3 Rf3 35. Ne2 Rf1+ 36. Kb2 Rf2 37. Rd2 Nf5 38. Kc3 Rf3+ 39. Rd3 Rf2 40. Nf4 Nxg3 41. Rxg3 Rxf4 42. Kd3 Rf2 43. a4 a5 44. Ke3 Rb2 45. Kf4 c6 46. h4 Rh2 47. Kg5 b5 48. h5 Kb6 49. h6 Kc5 50. Rc3+ Kb4 51. Rxc6 bxa4 52. Rb6+ Ka3 53. bxa4 Kxa4 54. Kg6 Ka3 55. Kg7 a4 56. h7 Ka2 57. Rh6 Rg2+ 58. Kf7 Rf2+ 59. Ke7 Re2+ 60. Kd7 Rd2+ 61. Kc7 Rc2+ 62. Kb7 Rb2+ 63. Ka7 a3 64. h8=Q Rb3 65. Rh2+ Rb2 66. Qg8+ Ka1 67. Rh1+ Rb1 68. Qg2 Rxh1 69. Qxh1+ Kb2 70. Qg2+ Kb1 71. Qf1+ Kc2 72. Qa1 Kb3 73. Ka6 Ka4 74. Kb6 Kb4 75. Kc6 Ka4 76. Kd5 Kb4 77. Kd4 Kb3 78. Kd3 a2 79. Kd2 Ka3 80. Kc1 Kb4 81. Kb2 Kc4 82. Kxa2 Kd3 83. Qg7 Ke3 84. Kb2 Ke4 85. Kc3 Kd5 86. Qf6 Kc5 87. Qe6 Kb5 88. Qc8 Kb6 89. Kc4 Ka5 90. Kc5 Ka4 91. Qb8 Ka3 92. Qb1 Ka4 93. Qb4# 1-0
2023.11.21 Titled Tue 21st Nov Early
737070 Koellner, Ruben Gideon (2488) Xie, Bryan (2319) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Nbd2 e6 5. Ne5 Nbd7 6. g4 Be4 7. f3 Bg6 8. h4 Nxe5 9. dxe5 Nd7 10. h5 Nxe5 11. hxg6 Nxg6 12. f4 Bc5 13. Nf3 Qd7 14. Qd3 O-O-O 15. Bd2 Qa4 16. Qb5 Qe4 17. Qxc5 Qxf3 18. Rh3 Qxg4 19. Qxa7 d4 20. Rd1 dxe3 21. Qxe3 Rd6 22. Be2 Qf5 23. Bd3 Qg4 24. Qg3 Qxg3+ 25. Rxg3 Rhd8 26. Ke2 Rd4 27. Rf1 f5 28. Ke3 c5 29. Bc3 R4d7 30. b3 Ne7 31. Bxg7 Nd5+ 32. Kf3 Nb4 33. Be5 Nxd3 34. cxd3 Rxd3+ 35. Kg2 Rd2+ 36. Rf2 Rxf2+ 37. Kxf2 Rd2+ 38. Ke3 Rxa2 39. Kd3 Rh2 40. Kc4 b6 41. Rg7 Kd8 42. Kb5 Rb2 43. Bxb2 1-0
2023.11.21 Titled Tue 21st Nov Early
737256 Pinero, C (2242) Koellner, Ruben Gideon (2488) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. g4 Nb6 7. Bb3 exd4 8. Nxd4 Bxg4 9. f3 Bd7 10. Qe2 c5 11. Ndb5 a6 12. Na3 O-O 13. Be3 Be6 14. O-O-O Qc7 15. Bxe6 fxe6 16. e5 Nfd5 17. exd6 Bxd6 18. Ne4 Bf4 19. Bd2 c4 20. c3 Rac8 21. Kb1 Bxd2 22. Rxd2 Nf4 23. Qe3 Nbd5 24. Qd4 b5 25. Rg1 e5 26. Qf2 Nh3 27. Qg2 Nxg1 28. Rxd5 Nxf3 29. Nc2 Nh4 30. Qh3 Ng6 31. Rd7 Qc6 32. Ng3 Rcd8 0-1
2023.11.21 Titled Tue 21st Nov Early
737592 Koellner, Ruben Gideon (2488) Devaev, A (2325) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 b6 5. c3 Bb7 6. Bd3 Be7 7. O-O O-O 8. e4 d6 9. Qe2 cxd4 10. cxd4 Nc6 11. a3 e5 12. d5 Nb8 13. b4 a6 14. Nc4 Nbd7 15. Be3 Ng4 16. Bd2 Ngf6 17. Rfc1 g6 18. Bh6 Re8 19. Nfd2 Nh5 20. g3 Ng7 21. Ne3 b5 22. Nb3 Nb6 23. Na5 Qd7 24. Nxb7 Qxb7 25. Rc6 Rec8 26. Rac1 Ne8 27. f4 Bf6 28. Ng4 Bh8 29. fxe5 dxe5 30. Be3 Na4 31. Qc2 Rxc6 32. Qxc6 Qxc6 33. Rxc6 h5 34. Nf2 Bf6 35. Bc2 Nb2 36. Bb3 Be7 37. Rc2 Na4 38. Nd3 Bd6 39. Rc6 f5 40. exf5 gxf5 41. Bxa4 bxa4 42. Bc5 Rd8 43. Rxa6 Bxc5+ 44. Nxc5 Rxd5 45. Rxa4 Nd6 46. Ra8+ Kf7 47. Ra7+ Kf6 48. Ra6 Rd1+ 49. Kf2 Ke7 50. a4 e4 51. Ke2 Ra1 52. a5 Nc4 53. Ra7+ Kd6 54. Rd7+ Ke5 55. Re7+ Kd6 56. Rf7 Ra2+ 57. Kd1 Ke5 58. a6 e3 59. Re7+ Kd4 60. a7 Ne5 61. Nb3+ Kd3 62. Nc1+ Kc3 63. Nxa2+ 1-0
2023.11.21 Titled Tue 21st Nov Early
737806 Rakhmanov, Ale (2614) Koellner, Ruben Gideon (2488) 1-0
1. d4 d6 2. Nf3 Nf6 3. g3 Nbd7 4. Bg2 e5 5. O-O Be7 6. Nc3 O-O 7. e4 c6 8. h3 b5 9. a3 Bb7 10. Be3 a5 11. Nh4 Re8 12. dxe5 dxe5 13. Nf5 Bf8 14. Nd6 Bxd6 15. Qxd6 Qb8 16. Rfd1 Qxd6 17. Rxd6 b4 18. Na4 Kf8 19. Nc5 Nxc5 20. Bxc5 Kg8 21. axb4 axb4 22. Rxa8 Rxa8 23. Bxb4 h5 24. Ba3 c5 25. f3 c4 26. c3 Rc8 27. Bf1 h4 28. g4 Nh7 29. Rb6 Ba8 30. Rb4 Ng5 31. Kf2 Rd8 32. Rxc4 Kh7 33. Rc7 Rd2+ 34. Ke3 Rd1 35. Ke2 Rc1 36. c4 Ne6 37. Rxf7 Rxc4 38. Kd2 Rd4+ 39. Ke1 Bc6 40. Be7 Kg6 41. Rf5 Ba4 42. Rxe5 Rd1+ 43. Kf2 Nf4 44. Bxh4 Bc2 45. Rg5+ Kh7 46. Ra5 Bd3 47. Bxd3 Rxd3 48. Bg3 Nxh3+ 49. Kg2 Rd2+ 50. Kxh3 Rxb2 51. Ra7 Rb3 52. Kg2 Rb2+ 53. Bf2 Rb3 54. Bd4 Rb7 55. Rxb7 Kh6 56. Rb5 g5 57. f4 Kg6 58. Kf3 Kh7 59. Rxg5 Kh6 60. e5 Kh7 61. e6 Kh6 62. e7 Kh7 63. e8=Q Kh6 64. Qh8# 1-0
2023.11.21 Titled Tue 21st Nov Early
738009 Koellner, Ruben Gideon (2488) Kazmin, Semen (2162) 1/2-1/2
1. d4 Nf6 2. Nf3 d5 3. e3 b6 4. Nbd2 Bb7 5. Bd3 e6 6. Ne5 Nbd7 7. f4 c5 8. c3 a5 9. O-O Ba6 10. Bxa6 Rxa6 11. Qf3 Bd6 12. g4 O-O 13. g5 Ne8 14. a4 f6 15. gxf6 Nexf6 16. Qh3 Qe8 17. Kh1 Bxe5 18. dxe5 Ne4 19. Nxe4 dxe4 20. Bd2 c4 21. Be1 Rf5 22. Rd1 Nc5 23. Rd4 Qxa4 24. Rd8+ Rf8 25. Rxf8+ Kxf8 26. f5 Kg8 27. fxe6 Qe8 28. Qf5 Ra7 29. Bh4 Nxe6 30. Qxe4 Qa8 31. Qxa8+ Rxa8 32. Rd1 Rb8 33. Rd6 Kf7 34. Rd7+ Kg6 35. Re7 Nc5 36. e6 Kf5 37. Rxg7 Kxe6 38. Rxh7 b5 39. Bg3 Rd8 40. Rh5 Rc8 41. e4 b4 42. Rh6+ Kf7 43. e5 bxc3 44. bxc3 a4 45. Rh7+ Ke6 46. Ra7 Rd8 47. Bf2 Ne4 48. Bd4 Rg8 49. Rxa4 Nd2 50. h4 Nf3 51. Rxc4 Nxh4 52. Rc6+ Kd7 53. Rd6+ Kc7 54. Kh2 Nf3+ 55. Kh3 Ng5+ 56. Kh4 Ne4 57. Rh6 Kd7 58. e6+ Ke7 59. Be3 Nd6 60. Bc5 Rc8 61. Rh7+ Kxe6 62. Rh6+ Kf5 63. Bxd6 Rc4+ 64. Kh3 Rxc3+ 65. Bg3 Rd3 66. Rh5+ Ke4 67. Rh4+ Kf5 68. Rh8 Rb3 69. Rf8+ Ke6 70. Rf4 Rc3 71. Kg4 Rb3 72. Re4+ Kd5 73. Re5+ Kd4 74. Re8 Kd5 75. Bf4 Rb7 76. Kf5 Rf7+ 77. Kg4 Rg7+ 78. Kf3 Rf7 79. Re5+ Kd4 80. Re1 Kd5 81. Rd1+ Kc4 82. Ke4 Rh7 83. Rc1+ Kb5 84. Be5 Rd7 85. Bd4 Kb4 86. Kd3 Kb5 87. Rb1+ Kc6 88. Kc4 Rb7 89. Rh1 Rd7 90. Bc5 Rd2 91. Rh6+ Kc7 92. Kb5 Rb2+ 93. Bb4 Kd7 94. Rd6+ Ke8 95. Rd4 Kf7 96. Kc6 Ke6 97. Re4+ Kf5 98. Rh4 Kg5 99. Be7+ Kf5 100. Rh1 Ke6 101. Re1+ Kf5 102. Bc5 Rd2 103. Re8 Kf6 104. Kb5 Rc2 105. Bd4+ Kf5 106. Kb4 Rc6 107. Bc5 Re6 108. Rf8+ Ke4 109. Rf1 Rh6 110. Kc4 Rh2 111. Re1+ Kf3 112. Bd6 Rd2 113. Be5 Rd7 114. Bd4 Kf4 1/2-1/2
2023.11.21 Titled Tue 21st Nov Early
738130 Koellner, Ruben Gideon (2488) Kassimov, B (2298) 0-1
1. d4 d6 2. Nf3 Bg4 3. Nbd2 Nd7 4. e4 e5 5. dxe5 dxe5 6. Bc4 c6 7. c3 b5 8. Bb3 Ngf6 9. h3 Bh5 10. Qe2 Bc5 11. Nf1 O-O 12. Ng3 Bg6 13. O-O a5 14. a4 Qb6 15. Nh4 Rfe8 16. axb5 cxb5 17. Rd1 a4 18. Ba2 Rad8 19. Bg5 Nf8 20. Nhf5 Ne6 21. Bxf6 gxf6 22. h4 Nf4 23. Qg4 Bxf2+ 24. Kh2 Bxg3+ 25. Qxg3 h5 26. Rxd8 Qxd8 27. Rf1 Kh7 28. Rxf4 exf4 29. Qxf4 Qb8 30. Qxb8 Rxb8 31. Kg3 b4 32. cxb4 Rxb4 33. Bd5 Bxf5 34. exf5 Rxb2 35. Bxf7 a3 36. Kf4 a2 37. Bxa2 Rxa2 38. g4 Ra4+ 39. Kf3 Rxg4 40. Ke3 Rxh4 41. Kf3 Rg4 42. Kf2 Rg5 43. Kf3 h4 44. Kf4 h3 45. Kf3 h2 46. Ke4 h1=Q+ 47. Kd4 Rxf5 48. Kc4 Qe4+ 49. Kc3 Rf3+ 50. Kb2 Qe2+ 51. Ka1 Rf1# 0-1
2023.11.21 Titled Tue 21st Nov Late
738534 Koellner, Ruben Gideon (2488) Buenafe Moya, J (2197) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nc6 6. Bd3 b6 7. Ne5 Bb7 8. f4 Bd6 9. Qf3 Ne7 10. O-O h5 11. g3 Nf5 12. h3 Bc7 13. g4 hxg4 14. hxg4 Nd6 15. g5 Nfe4 16. Kg2 Nf5 17. Rh1 Nh4+ 18. Rxh4 Rxh4 19. Nxe4 Bxe5 20. dxe5 dxe4 21. Bxe4 Bxe4 22. Qxe4 Rc8 23. Qc2 Ke7 24. Bd2 Qh8 25. Rg1 Rh2+ 26. Kf1 Qh3+ 27. Ke1 Qf3 28. Qd3 Qf2+ 29. Kd1 Qxg1+ 30. Kc2 Rd8 31. Qa6 Rdxd2+ 32. Kb3 Rxb2+ 33. Kc4 Qf1# 0-1
2023.11.14 Titled Tue 14th Nov Early
744593 Cherry, A (1918) Koellner, Ruben Gideon (2488) 1-0
1. e4 d6 2. Nc3 Nf6 3. d4 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. h3 c6 7. Be3 b5 8. Bd3 Qc7 9. O-O h6 10. Nh4 g6 11. d5 cxd5 12. Nxb5 Qb7 13. exd5 Nxd5 14. Nxg6 Nxe3 15. fxe3 fxg6 16. Bxg6+ Kd8 17. Nxd6 Bxd6 18. Qxd6 Qb6 19. Qd3 Ba6 20. Qe4 Kc7 21. Rf7 Rad8 22. Qxe5+ Kc8 23. Bf5 Bb5 24. Rd1 Rhe8 25. Qc3+ Qc7 26. Qb4 Re5 27. e4 Qc5+ 28. Qd4 Qxd4+ 29. Rxd4 Rc5 30. c4 Rxc4 31. Bxd7+ Kb8 32. Rxc4 Bxc4 33. Rh7 Bxa2 34. e5 Bg8 35. Rg7 Bd5 36. e6 Bxe6 37. Bxe6 Rd2 38. b3 a5 39. Rg6 Rd6 40. Rxh6 Kc7 41. Rg6 Kb6 42. h4 Kc5 43. h5 Kd4 44. h6 Ke5 45. Bf7 Rd7 46. h7 Rd1+ 47. Kf2 Rd2+ 48. Ke3 Rd8 49. Bg8 Kf5 50. Rg7 Re8+ 51. Kd4 Rd8+ 52. Kc5 Rc8+ 53. Kb6 Rb8+ 54. Kxa5 Rxb3 55. Bxb3 Kf4 56. h8=Q Ke3 57. Qh3+ Kf2 58. Qf3+ Kg1 59. g4 Kh2 60. Rh7+ Kg1 61. Rh1# 1-0
2023.11.14 Titled Tue 14th Nov Early
744616 Koellner, Ruben Gideon (2488) Kuznecova, Marija (2011) 1-0
1. d4 Nf6 2. Nf3 c5 3. e3 d5 4. c3 e6 5. Nbd2 Bd6 6. Bd3 b6 7. Ne5 Bb7 8. f4 Nbd7 9. Qf3 Qc7 10. O-O Ng8 11. Qh5 g6 12. Qh3 Ne7 13. Ndf3 f6 14. Qxe6 fxe5 15. fxe5 Bxe5 16. Nxe5 Nxe5 17. dxe5 Bc8 18. Bb5+ Kd8 19. Qf6 Rg8 20. Qf8+ 1-0
2023.11.14 Titled Tue 14th Nov Early
745030 Bressy, Theo (2185) Koellner, Ruben Gideon (2488) 1/2-1/2
1. e4 d6 2. Nc3 Nf6 3. g3 e5 4. Bg2 Be7 5. d3 c5 6. f4 Nc6 7. Nf3 Nd4 8. Ne2 Bg4 9. Nfxd4 cxd4 10. h3 Be6 11. c3 dxc3 12. Nxc3 Qb6 13. Qe2 Rc8 14. Be3 Qa6 15. f5 Bd7 16. d4 Qxe2+ 17. Kxe2 b5 18. a3 O-O 19. dxe5 dxe5 20. Bxa7 b4 21. axb4 Bxb4 22. Rhc1 Bc6 23. Nd5 Nxd5 24. exd5 Bb5+ 25. Ke3 f6 26. Be4 Rxc1 27. Rxc1 Ra8 28. Bb6 Ra6 29. Bc5 Bxc5+ 30. Rxc5 Rb6 31. Kd2 Kf8 32. Kc3 Ke7 33. Rc7+ Bd7 34. b4 Ra6 35. Kb2 Kd6 36. Rc5 Ra4 37. Rc4 Bb5 38. Kb3 Bxc4+ 39. Kxa4 Bxd5 40. Bxd5 Kxd5 41. Kb3 Kd4 42. g4 h6 43. h4 e4 44. b5 Kc5 45. Kc3 Kxb5 46. Kd4 Kb4 47. Kxe4 Kc4 48. Kf4 Kd4 49. h5 Kd3 50. Kf3 Kd2 51. Kf2 Kd3 52. Kf3 Kd4 53. Kf4 Kd5 54. Kf3 Ke5 55. Ke3 Kd5 56. Kf3 Ke5 57. Ke3 Kd5 58. Kf3 1/2-1/2
2023.11.07 Titled Tue 7th Nov Early
751011 Koellner, Ruben Gideon (2488) Lee, Addison (2082) 0-1
1. d4 Nf6 2. Nf3 c5 3. e3 g6 4. Nbd2 Bg7 5. dxc5 Qa5 6. a3 Qxc5 7. b4 Qc7 8. Bb2 O-O 9. c4 Nc6 10. Be2 d6 11. O-O Bf5 12. Rc1 Rac8 13. Re1 Rfd8 14. h3 b6 15. Qb3 a5 16. Bc3 Qa7 17. Qb2 Rb8 18. Nd4 Nxd4 19. Bxd4 Ne8 20. Bxg7 Nxg7 21. Nf3 Qd7 22. Nd4 Be4 23. Red1 Rdc8 24. Bg4 f5 25. Be2 Ne6 26. Bf1 Kf7 27. Qa2 Nxd4 28. Rxd4 Qe6 29. Qd2 Kg7 30. bxa5 bxa5 31. Qxa5 Ra8 32. Qc3 Qf6 33. f3 Bc6 34. c5 dxc5 35. Qxc5 Bb7 36. Qb4 Rxc1 37. Qxb7 Rxa3 38. Rd7 Kf7 39. Kf2 Ra2+ 40. Kg3 Rxf1 41. Rd8 Qg5+ 42. Kh2 Rxg2# 0-1
2023.11.07 Titled Tue 7th Nov Early
751144 Corredor Castellanos, Camilo (1957) Koellner, Ruben Gideon (2488) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Be3 Be7 6. Qd2 c6 7. O-O-O b5 8. d5 b4 9. dxc6 bxc3 10. cxd7+ Bxd7 11. Qxc3 O-O 12. Bd3 Rc8 13. Qd2 Qc7 14. Kb1 Rb8 15. Ka1 Qb7 16. c3 Nxe4 17. Qc2 Nf6 18. h4 e4 0-1
2023.11.07 Titled Tue 7th Nov Early
751392 Koellner, Ruben Gideon (2488) Shevchuk, Olexandr (2093) 1-0
1. d4 e6 2. Nf3 d5 3. e3 Nf6 4. Nbd2 b6 5. Bd3 c5 6. c3 Bd6 7. Ne5 Qc7 8. f4 O-O 9. g4 Ba6 10. Bc2 cxd4 11. exd4 Nc6 12. g5 Nd7 13. Rg1 Rac8 14. Bxh7+ Kxh7 15. Qh5+ Kg8 16. Rg3 Bxe5 17. Rh3 f5 18. g6 Nf6 19. Qh8# 1-0
2023.11.07 Titled Tue 7th Nov Early
751837 Koellner, Ruben Gideon (2488) Saya, Ethan (2242) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 Bd6 5. Bd3 Nbd7 6. Qe2 O-O 7. e4 e5 8. dxe5 Nxe5 9. Nxe5 Bxe5 10. O-O Bg4 11. f3 Be6 12. f4 Bd4+ 13. Kh1 dxe4 14. Nxe4 Bd5 15. Nxf6+ Qxf6 16. c3 Bb6 17. Qh5 Rfd8 18. Qxh7+ Kf8 19. Qh8+ Ke7 20. Re1+ Be6 21. Qh3 Kf8 22. f5 Rxd3 23. Qxd3 Bxf5 24. Qf3 Qg6 25. Be3 Be4 26. Qxe4 Qxe4 27. Bc5+ Bxc5 28. Rxe4 Rd8 29. Re2 g6 30. g3 Rd3 31. Kg2 a6 32. Rae1 Kg7 33. Rf1 f5 34. Rfe1 Bd6 35. Re8 Rd2+ 36. R1e2 Rd1 37. Rb8 b6 38. b4 Rc1 39. Ra8 Rxc3 40. Rxa6 Bxb4 41. Ra7 g5 42. Ra8 g4 43. Rae8 Rc1 44. R8e5 Bc5 45. Re1 Rc2+ 46. R5e2 Rc3 47. Rf1 Kg6 48. Rfe1 Kg5 49. h3 gxh3+ 50. Kxh3 Bd6 51. Re3 Rc2 52. R1e2 Rxe2 53. Rxe2 f4 54. g4 f3 55. Re6 Kf4 56. Rf6+ Ke3 57. g5 Ba3 58. g6 Bb2 59. Rf7 Ke2 60. Re7+ Kd2 61. g7 Bxg7 62. Rxg7 f2 63. Kg2 c5 64. Rd7+ Ke2 65. Re7+ Kd2 66. Kxf2 c4 67. Rb7 c3 68. Rxb6 c2 69. Rd6+ Kc3 70. Rc6+ Kb2 71. a4 c1=Q 72. Rxc1 Kxc1 73. a5 Kb2 74. a6 Kb3 75. a7 Kb4 76. a8=Q 1-0
2023.11.07 Titled Tue 7th Nov Early
751890 Nenezic, M (2499) Koellner, Ruben Gideon (2488) 1-0
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. Ng5 e5 6. dxe5 Nfd7 7. e4 Be6 8. Nxe6 fxe6 9. Qg4 Qe7 10. exd6 cxd6 11. Bg5 Qf7 12. Qg3 Nc6 13. Nb5 Nc5 14. Qxd6 Bxd6 15. Nxd6+ Kf8 16. Nxf7 Kxf7 17. f3 Ne5 18. O-O-O Rac8 19. Kb1 Na6 20. f4 1-0
2023.11.07 Titled Tue 7th Nov Early
752102 Koellner, Ruben Gideon (2488) Alinasab, Mobina (2306) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 e5 11. e4 dxe4 12. Nxe4 Nxe4 13. Bxe4 Qe7 14. a3 Be6 15. Qc2 f5 16. Bxc6 bxc6 17. c4 e4 18. Nd4 Bd7 19. c5 Bc7 20. Rad1 Rad8 21. Rfe1 Qh4 22. g3 Qh6 23. Bc1 Qg6 24. Ne2 Qf7 25. Bf4 Be6 26. Bxc7 Qxc7 27. Nf4 Bf7 28. h4 Rxd1 29. Rxd1 Rd8 30. a4 a5 31. Rxd8+ Qxd8 32. b5 cxb5 33. axb5 Qd4 34. c6 e3 35. c7 exf2+ 36. Qxf2 Qd1+ 37. Kh2 Qc1 38. b6 a4 39. Nd3 Qc4 40. Nc5 Be6 41. Nxe6 a3 42. b7 1-0
2023.11.07 Titled Tue 7th Nov Early
752480 Tsydypov, Z (2548) Koellner, Ruben Gideon (2488) 1-0
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 c6 6. g4 h6 7. h4 exd4 8. Nxd4 Ne5 9. g5 hxg5 10. hxg5 Nfg4 11. Be2 Nh2 12. Be3 Rh3 13. Qd2 c5 14. O-O-O cxd4 15. Qxd4 Nhf3 16. Qb4 Nxg1 17. Rxg1 Rxe3 18. fxe3 Qb6 19. Bb5+ Bd7 20. Nd5 Bxb5 21. Nxb6 axb6 22. Qxb5+ Nd7 23. g6 f6 24. Qc4 Kd8 25. a3 Ra5 26. Rh1 Rc5 27. Qf7 Re5 28. Rh8 Re8 29. a4 Ne5 30. Qxb7 Nxg6 31. Qxb6+ Ke7 32. Qb7+ Ke6 33. Rh5 Ne5 34. a5 g5 35. a6 g4 36. a7 g3 37. a8=Q Rxa8 38. Qxa8 g2 39. Qe8+ Be7 40. Qg8+ Kd7 41. Qxg2 1-0
2023.11.07 Titled Tue 7th Nov Late
753111 Koellner, Ruben Gideon (2488) Lacey, Patrick (2184) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 Nc6 4. Bb5 Bg4 5. c4 Bxf3 6. gxf3 e6 7. Nc3 Bb4 8. Qa4 Qd7 9. Bxc6 Bxc3+ 10. bxc3 Qxc6 11. Qxc6+ bxc6 12. Ba3 Kd7 13. Kd2 Rhb8 14. Rab1 Ne8 15. Rhg1 g6 16. h4 h5 17. e4 dxc4 18. Ke3 Nd6 19. Bc5 a5 20. a4 Rb3 21. Rxb3 cxb3 22. Kd3 Rb8 23. Rb1 f5 24. Rb2 fxe4+ 25. fxe4 e5 26. dxe5 Nf7 27. f4 Ke6 28. Kc4 g5 29. hxg5 h4 30. g6 1-0
2023.11.07 Titled Tue 7th Nov Late
753402 Kozakov, M (2513) Koellner, Ruben Gideon (2488) 1/2-1/2
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. a5 Qc7 9. b3 Nf8 10. Bb2 Ng6 11. Re1 O-O 12. h3 Rb8 13. Bf1 b5 14. axb6 axb6 15. Nb1 b5 16. Nbd2 Be6 17. Ra6 Ra8 18. Qa1 Qb7 19. Rxa8 Rxa8 20. Qb1 exd4 21. Nxd4 Bd7 22. Nf5 Bxf5 23. exf5 Nf8 24. Ne4 Nxe4 25. Rxe4 d5 26. Rg4 f6 27. Qc1 Kh7 28. Bd3 Qd7 29. Qe3 c5 30. Bxb5 Qc7 31. Ba4 d4 32. Qf3 Rb8 33. Bc1 Bd6 34. Bf4 Bxf4 35. Qxf4 Qxf4 36. Rxf4 Kg8 37. Re4 Kf7 38. Kf1 g6 39. g4 gxf5 40. gxf5 Nh7 41. h4 Nf8 42. Ke2 Rb4 43. Kd3 c4+ 44. Kd2 cxb3 45. Bxb3+ Kg7 46. Kd3 Rb7 47. Rxd4 Nd7 48. Be6 Ne5+ 49. Ke4 Rb1 50. f4 Re1+ 51. Kd5 Nf3 52. Rd3 Nxh4 53. Kd6 Rg1 54. c4 Ng2 55. Rg3+ Kh7 56. Ke7 h5 57. Kf8 h4 58. Rg7+ Kh6 59. Bg8 Kh5 60. c5 h3 61. c6 Rc1 62. Bd5 Kh4 63. Bxg2 hxg2 64. Rxg2 Rxc6 65. Kf7 Kh5 66. Rg6 Rc4 67. Rxf6 Rxf4 68. Ke6 Re4+ 69. Kf7 Re5 70. Kg7 Kg5 71. Rf7 Rxf5 72. Rxf5+ Kxf5 1/2-1/2
2023.11.07 Titled Tue 7th Nov Late
753415 Koellner, Ruben Gideon (2488) Hoffmann, As (2185) 1-0
1. d4 Nf6 2. Nf3 d6 3. Nbd2 Bf5 4. e3 Nbd7 5. Bd3 Bxd3 6. cxd3 e6 7. O-O c6 8. b4 d5 9. Rb1 Bd6 10. a4 O-O 11. b5 Re8 12. bxc6 bxc6 13. Nb3 c5 14. dxc5 Nxc5 15. Nxc5 Bxc5 16. Bb2 Bd6 17. h3 e5 18. Ba1 Qd7 19. Rb5 a6 20. Rb6 Qc7 21. Qb3 Rab8 22. Rb1 e4 23. dxe4 dxe4 24. Rxb8 Rxb8 25. Qxb8+ Qxb8 26. Rxb8+ Bxb8 27. Nd2 Bd6 28. Bxf6 gxf6 29. Nxe4 Bb4 30. Nxf6+ Kf8 31. Nd5 Bc5 32. Kf1 a5 33. Ke2 1-0
2023.11.07 Titled Tue 7th Nov Late
753698 Leitao, R (2592) Koellner, Ruben Gideon (2488) 1/2-1/2
1. c4 d6 2. g3 Nf6 3. Bg2 e5 4. Nc3 Be7 5. Nf3 O-O 6. d4 exd4 7. Nxd4 Re8 8. O-O Bf8 9. e4 Nc6 10. Re1 Bd7 11. Nc2 g6 12. b3 Bg7 13. Bb2 h5 14. Qd2 h4 15. Ne3 h3 16. Bh1 Ne7 17. Rad1 a5 18. e5 dxe5 19. Bxb7 Rb8 20. Bh1 c6 21. Ne4 Nxe4 22. Qxd7 Qxd7 23. Rxd7 Nc5 24. Rdd1 e4 25. Ba3 Nd3 26. Re2 f5 27. f3 Nb4 28. fxe4 fxe4 29. Bxe4 Nf5 30. Nxf5 gxf5 31. Bf3 Red8 32. Red2 Rxd2 33. Rxd2 c5 34. Bxb4 axb4 35. Kf1 Bd4 36. Re2 Kf7 37. Bd5+ Kf6 38. Re6+ Kg5 39. Ke2 Rf8 40. Kf3 Rf6 41. Re8 Ra6 42. Re2 Ra7 43. Bc6 Ra6 44. Ba4 Kf6 45. Re8 Re6 46. Rxe6+ Kxe6 47. g4 Be5 48. gxf5+ Kxf5 49. Bd7+ Kf6 50. Bxh3 Bxh2 51. Ke4 Ke7 52. Kd5 Bg1 53. Bg4 Kd8 54. Bh3 Kc7 55. Bg4 Kb6 56. Bh3 Bd4 57. Bg4 Bc3 58. Bh3 Bb2 59. Bg4 Ba3 60. Bh3 Bb2 61. Bg4 Ba3 62. Bh3 Bb2 1/2-1/2
2023.11.07 Titled Tue 7th Nov Late
753869 Koellner, Ruben Gideon (2488) Makhnev, Denis (2466) 0-1
1. d4 d5 2. Nf3 e6 3. e3 c5 4. c3 Nc6 5. Nbd2 Nf6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 Qc7 11. a3 e5 12. e4 h6 13. Qe2 Be6 14. Rfe1 a6 15. Rad1 Rad8 16. g3 dxe4 17. Nxe4 Nxe4 18. Bxe4 Bg4 19. c4 f5 20. Bd5+ Kh7 21. h3 Bxf3 22. Qxf3 e4 23. Qb3 Ne5 24. Bxe5 Bxe5 25. c5 g6 26. Rd2 Rd7 27. Red1 Rfd8 28. Bg8+ Kg7 29. Rxd7+ Rxd7 30. Rxd7+ Qxd7 31. Qd5 Qc7 32. Kg2 h5 33. a4 e3 34. fxe3 Bxg3 35. b5 Bh4 36. Kf1 Qg3 37. Ke2 Qe1+ 38. Kd3 Qd1+ 39. Kc4 Qxa4+ 40. Kc3 Bf6+ 41. Kd2 Qb4+ 42. Ke2 Qb2+ 43. Kf3 axb5 44. Qf7+ Kh6 45. h4 Bg7 46. Qe6 Qf6 47. Qxf6 Bxf6 48. Bd5 Be7 49. Bxb7 Bxc5 50. Bc6 b4 51. Bd5 Be7 52. e4 fxe4+ 53. Kxe4 Bxh4 54. Kd3 Be1 55. Kc4 Bc3 56. Kd3 g5 57. Ke4 g4 58. Kf5 Bd4 59. Bb3 g3 60. Ke4 g2 61. Kxd4 g1=Q+ 62. Kc4 Qe1 63. Kb5 Qc3 64. Ka4 h4 65. Bd5 Qa3+ 66. Kb5 b3 67. Kc4 b2 68. Be4 Qa4+ 69. Kd5 h3 70. Bd3 h2 71. Ke6 h1=Q 72. Bf5 Qhc6+ 73. Kf7 Qa7+ 74. Kg8 Qg7# 0-1
2023.11.07 Titled Tue 7th Nov Late
753974 Tikhonov, Viacheslav (2160) Koellner, Ruben Gideon (2488) 1-0
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. O-O h6 8. Ba2 Qc7 9. h3 Nf8 10. Be3 g5 11. d5 Ng6 12. dxc6 bxc6 13. Nd2 g4 14. hxg4 Bxg4 15. f3 Be6 16. Bxe6 fxe6 17. Nc4 d5 18. exd5 exd5 19. Qd3 Kf7 20. f4 e4 21. Qd4 dxc4 22. Qxc4+ Kg7 23. Bd4 Qd7 24. Rad1 Qf5 25. Qxc6 Rac8 26. Qb7 Rb8 27. Qxa7 Ra8 28. Qb7 Rhb8 29. Qc7 Rc8 30. Qb7 Rab8 31. Qa7 Rxb2 32. Nd5 Qxd5 33. Bxf6+ Kxf6 34. Rxd5 Rcxc2 35. Qd4+ Kf7 36. Qxe4 Nh4 37. Qh7+ Kf8 38. Qxh6+ Kf7 39. Qh7+ Kf8 40. Rg5 Rxg2+ 41. Rxg2 Rxg2+ 42. Kh1 Rg7 43. Qh8+ Rg8 44. Qh6+ Kf7 45. Rg1 Rxg1+ 46. Kxg1 Bf6 47. Kf1 Ke6 48. a5 Nf5 49. Qh3 Bd4 50. a6 Kf6 51. Qb3 Ne3+ 52. Ke2 Kf5 53. Qxe3 Bxe3 54. Kxe3 1-0
2023.10.31 Titled Tue 31st Oct Late
760460 Koellner, Ruben Gideon (2488) Polaczek, R (2302) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. c3 Nc6 5. Nbd2 e6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 a6 11. a3 b5 12. a4 Rb8 13. axb5 axb5 14. Qe2 Qb6 15. e4 Be7 16. e5 Nd7 17. Rfe1 Ba6 18. Nb3 Rfe8 19. Bc1 Nf8 20. Be3 Qb7 21. Nc5 Bxc5 22. Bxc5 Nd7 23. Bd6 Ra8 24. Qc2 Na7 25. Bxh7+ Kh8 26. Bd3 Nc8 27. Ng5 Nf8 28. Bxf8 Rxf8 29. Bxb5 g6 30. Qd3 Bxb5 31. Qh3+ Kg7 32. Qh7# 1-0
2023.10.31 Titled Tue 31st Oct Late
760762 Toropov, P (2336) Koellner, Ruben Gideon (2488) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nge2 Nc6 5. h3 exd4 6. Nxd4 Nxd4 7. Qxd4 Be7 8. g4 O-O 9. Bg2 Be6 10. O-O Nd7 11. Be3 Bf6 12. Qd2 Nb6 13. b3 Qe8 14. Rac1 Qc6 15. Nd5 Bxd5 16. exd5 Qc3 17. Qxc3 Bxc3 18. Rcd1 Rfe8 19. Rd3 Bf6 20. a4 Nd7 21. f4 g6 22. Kf2 Re7 23. Kf3 Rae8 24. b4 b6 25. Rb1 g5 26. Bf1 gxf4 27. Bxf4 Re4 28. c3 h6 29. Rb2 Kg7 30. Re2 Rxe2 31. Bxe2 Bg5 32. Bg3 Ne5+ 33. Bxe5+ Rxe5 34. Kf2 f5 35. gxf5 Rxf5+ 36. Bf3 Bh4+ 37. Ke2 Bf6 38. Re3 h5 39. Kd3 Be5 40. Kc4 Rg5 41. Kb5 Rg3 42. Ka6 Rxh3 43. Kxa7 h4 44. Kb7 Rg3 45. Rd3 h3 46. Be4 Rxd3 47. Bxd3 Bxc3 48. b5 Kf6 49. Be4 Ke5 50. Bh1 Kd4 51. Kxc7 Kc5 52. Kb7 Bb4 53. Kc7 Ba5 54. Kb7 h2 55. Kc7 Be1 56. Kb7 Bd2 57. Kc7 Be3 58. Kd7 Bf4 59. Kc7 Bg3 60. a5 Kxb5 61. axb6 Bf2 62. b7 Ba7 63. b8=Q+ Bxb8+ 64. Kxb8 Kb6 65. Kc8 Kc5 66. Kd7 Kd4 67. Kxd6 Ke3 68. Ke6 Kf2 69. d6 Kg1 70. Bc6 Kf2 71. d7 Ke3 72. d8=Q Kf2 73. Qd4+ Kg3 74. Qe3+ Kg4 75. Qf2 h1=Q 76. Bxh1 Kh5 77. Qg2 Kh6 78. Kf6 Kh5 79. Qg5# 1-0
2023.10.31 Titled Tue 31st Oct Late
760882 Koellner, Ruben Gideon (2488) Kunin, V (2534) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 Bg4 4. h3 Bh5 5. g4 Bg6 6. Ne5 Nfd7 7. Nxg6 hxg6 8. Bg2 e6 9. c4 c6 10. Nc3 Nb6 11. cxd5 cxd5 12. e4 Bb4 13. exd5 Nxd5 14. Bd2 Nc6 15. Nxd5 Bxd2+ 16. Qxd2 exd5 17. Qe3+ Qe7 18. O-O-O Rc8 19. Kb1 Qxe3 20. fxe3 Ne7 21. e4 Kd7 22. Rhf1 f6 23. exd5 b6 24. Rfe1 Rce8 25. Bf1 Kd8 26. Bb5 Ref8 27. Re6 Rxh3 28. d6 Nc8 29. Rde1 Rhh8 30. Re7 Nxd6 31. Rd7+ Kc8 32. Rxd6 Rd8 33. Rc1+ Kb8 34. Rxd8+ Rxd8 35. Ba6 f5 36. gxf5 gxf5 37. d5 f4 38. d6 f3 39. d7 f2 40. Rc8+ 1-0
2023.10.31 Titled Tue 31st Oct Late
761087 Koellner, Ruben Gideon (2488) Dogan, A (2182) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. c3 O-O 6. Bc4 c6 7. Bb3 b5 8. O-O a5 9. a4 bxa4 10. Bxa4 c5 11. dxc5 dxc5 12. Qe2 Ba6 13. Bb5 Bxb5 14. Qxb5 Qc7 15. e5 Ng4 16. e6 fxe6 17. Qc4 Rf4 18. Qxe6+ Kh8 19. h3 Ra6 20. Qe2 Ne5 21. Nxe5 Qxe5 22. Qxe5 Bxe5 23. Nf3 Rxf3 24. gxf3 Kg7 25. Re1 Bd6 26. Be3 Nc6 27. Ra4 Ne5 28. Kg2 Nd3 29. Re2 Rb6 30. Rxa5 Nxb2 31. Bxc5 Bxc5 32. Rxc5 Nd3 33. Rxe7+ Kf6 34. Rcc7 Nf4+ 35. Kg3 Nh5+ 36. Kh2 Rb2 37. Rf7+ Kg5 38. Rc5+ Kh6 39. Kg2 Rc2 40. c4 Ng7 41. h4 Nf5 42. Rfxf5 gxf5 43. Kg3 Kg6 44. Rc6+ Kh5 45. Rc8 f4+ 46. Kxf4 Rxf2 47. Kg3 Rc2 48. Rc5+ Kg6 49. Kg4 Rg2+ 50. Kf4 Rh2 51. Kg3 Rc2 52. f4 h5 53. Kf3 Rc1 54. Ke4 Re1+ 55. Kd4 Rf1 56. Rg5+ Kf6 57. Ke4 Re1+ 58. Kd5 Rd1+ 59. Kc6 Rd4 60. c5 Rxf4 61. Rxh5 Kg6 62. Re5 Rxh4 63. Kd7 Rd4+ 64. Ke6 Rc4 65. Rd5 Kg7 66. Kd6 Kf8 67. Kd7 Rc1 68. c6 Kf7 69. c7 Kf6 70. c8=Q Rxc8 71. Kxc8 Ke6 72. Rd7 1-0
2023.10.31 Titled Tue 31st Oct Late
761196 Figorito, Nick (2036) Koellner, Ruben Gideon (2488) 1/2-1/2
1. Nf3 d6 2. g3 Nf6 3. Bg2 e5 4. O-O Be7 5. c4 O-O 6. Nc3 c6 7. d3 a5 8. Rb1 Na6 9. a3 Nc5 10. b4 axb4 11. axb4 Ne6 12. b5 Bd7 13. Ng5 h6 14. Nxe6 fxe6 15. bxc6 bxc6 16. Bd2 d5 17. cxd5 exd5 18. Na4 Bg4 19. Re1 Qe8 20. Bb4 Bxb4 21. Rxb4 Qh5 22. h3 Be6 23. Rh4 Qf7 24. Nc5 Rfb8 25. Nxe6 Qxe6 26. Ra4 c5 27. Rxa8 Rxa8 28. Qc2 Rc8 29. Qa2 c4 30. dxc4 dxc4 31. Rc1 e4 32. e3 Qd5 33. Qa6 Rc6 34. Qa8+ Kh7 35. Rc3 h5 36. Bf1 h4 37. Rxc4 Rd6 38. Qxd5 Rxd5 39. gxh4 Kg6 40. Be2 Rd2 41. Bg4 Rd5 42. Kg2 Rd2 43. Kg3 Kh6 44. Rd4 Rb2 45. Rc4 Kg6 46. Rd4 Rc2 47. Rb4 Ra2 48. Rc4 Rb2 49. Rd4 Rc2 50. Rb4 Ra2 51. Rd4 Rb2 52. Rc4 Rd2 53. Rb4 Rc2 54. Rd4 Rb2 55. Rc4 Rd2 56. Rb4 Rc2 57. Rd4 1/2-1/2
2023.10.31 Titled Tue 31st Oct Late
761383 Matyunin, Maxim (2099) Koellner, Ruben Gideon (2488) 1-0
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. Bg5 Ne4 6. Bh4 Nxc3 7. bxc3 Bg7 8. Nd2 O-O 9. e4 Bd7 10. Bd3 c5 11. Nf3 Nc6 12. Be2 Qa5 13. O-O Qxc3 14. Rc1 Qb4 15. d5 Nd4 16. Bxe7 Ba4 17. Qe1 Rfe8 18. Nxd4 Rxe7 19. Qxb4 cxb4 20. Nc2 Rxe4 21. Bd3 Bxc2 22. Rxc2 Rd4 23. Be2 Rc8 24. Rb1 a5 25. a3 bxa3 26. Rxb7 Rxd5 27. Ra2 Re5 28. f4 Re3 29. Kf2 Rce8 30. Bf3 Bd4 31. Kg3 R8e7 32. Rb8+ Kg7 33. Ra8 Ra7 34. Rd8 Bc5 35. f5 g5 36. h4 h6 37. hxg5 hxg5 38. Kg4 Kf6 39. Rh8 Rae7 40. Rh6+ Kg7 41. Kxg5 R7e5 42. Rh4 Rc3 43. Rg4 Rb3 44. Kf4+ Kf6 45. Rg8 Rxf5+ 46. Kg4 Rb2 47. Ra1 Be3 48. Be4 Rg5+ 49. Rxg5 Bxg5 50. Rxa3 Bd2 51. Rf3+ Ke7 52. Bd5 f6 53. Rf2 Bc3 54. Rf3 Be5 55. Rh3 Ra2 56. Rh7+ Kd8 57. Kf5 a4 58. Ke6 a3 59. c5 dxc5 60. Bxa2 Bd4 61. Kd5 Ke8 62. g4 Kf8 63. Ke6 Bb2 64. Rc7 Be5 65. Rxc5 Bb2 66. Rc7 Kg8 67. Rd7 Kf8 68. Kf5 Ke8 69. Rb7 Kd8 70. Rxb2 axb2 71. Kxf6 Ke8 72. Kg7 Ke7 73. g5 Kd6 74. g6 Kc5 75. Kh7 Kb4 76. g7 Ka3 77. g8=Q b1=Q+ 78. Bxb1 Kb2 79. Qb8+ Kc1 80. Kg6 Kd2 81. Kf5 Kc1 82. Ke4 Kd2 83. Qb2+ Kd1 84. Ke3 Ke1 85. Qe2# 1-0
2023.10.31 Titled Tue 31st Oct Late
761501 Koellner, Ruben Gideon (2488) Hajiyev, K (2124) 1-0
1. d4 d5 2. Nf3 c5 3. e3 cxd4 4. exd4 Nc6 5. c3 Nf6 6. Nbd2 Bg4 7. Bb5 e6 8. Qa4 Qb6 9. Ne5 Rc8 10. Nxg4 Nxg4 11. Nf3 Bd6 12. O-O O-O 13. Re1 a6 14. Bd3 Qc7 15. h3 Nf6 16. Bg5 Nd7 17. Qd1 Ne7 18. Qe2 Ng6 19. g3 b5 20. a3 Rce8 21. h4 e5 22. dxe5 Ngxe5 23. Nxe5 Rxe5 24. Qg4 f5 25. Qf3 Rfe8 26. Rxe5 Rxe5 27. Bxf5 Nc5 28. Rd1 Ne4 29. Rxd5 Rxd5 30. Be6+ Kh8 31. Bxd5 Nxg5 32. hxg5 Qe7 33. Qf5 g6 34. Qf6+ Qxf6 35. gxf6 Be5 36. f7 Kg7 37. f4 Bf6 38. Kf2 a5 39. Ke3 b4 40. cxb4 axb4 41. axb4 Bxb2 42. b5 Ba3 43. Kd4 Bd6 44. b6 h5 45. Be6 h4 46. gxh4 Bxf4 47. Kd5 Bg3 48. b7 Kf8 49. Kc6 Ke7 50. Bc4 Bb8 51. Bb3 Be5 52. Kb6 Bb8 53. Ka6 Kf8 54. Kb5 Ke7 55. Kc5 Bc7 56. Kd4 Bb8 57. Ke4 Bg3 58. Kf3 Bb8 59. Kg4 Kf8 60. Kg5 Kg7 61. Bc2 Kxf7 62. Bxg6+ Ke7 63. h5 Kd7 64. Kf6 Kc6 65. Be4+ Kc5 66. h6 Kd4 67. Bh1 Be5+ 68. Kf7 Kc5 69. Kg8 Kb6 70. h7 Ka7 71. h8=Q Bxh8 72. Kxh8 Kb8 73. Kg7 Kc7 74. Kf6 Kb8 75. Ke7 Kc7 76. Ke6 Kb8 77. Kd6 Ka7 78. Kc7 1-0
2023.10.31 Titled Tue 31st Oct Late
761584 Yelisieiev, Yevhenii (2420) Koellner, Ruben Gideon (2488) 0-1
1. d4 d6 2. Nf3 Nf6 3. g3 Nbd7 4. Bg2 e5 5. O-O Be7 6. c4 O-O 7. Nc3 Re8 8. e4 Bf8 9. Re1 c6 10. b3 Qc7 11. Bb2 a5 12. Qd2 h6 13. Rad1 exd4 14. Nxd4 Nc5 15. h3 Be6 16. f3 Rad8 17. Qc1 Bc8 18. Kh2 h5 19. Qg5 Re5 20. Nf5 Bxf5 21. exf5 Rxe1 22. Rxe1 Nd3 23. Re2 Nxb2 24. Rxb2 d5 25. cxd5 cxd5 26. Ne2 d4 27. Rd2 d3 28. Ng1 Bb4 29. Rd1 Qc2 30. Rc1 Bd2 31. Rxc2 dxc2 32. f4 c1=Q 33. Nf3 Be3 34. g4 Bxf4+ 0-1
2023.10.31 Titled Tue 31st Oct Late
761747 Koellner, Ruben Gideon (2488) Gurevich, D (2377) 1/2-1/2
1. d4 d5 2. Nf3 e6 3. e3 c5 4. c3 Nc6 5. Nbd2 Nf6 6. Bd3 Qc7 7. O-O b6 8. e4 cxd4 9. cxd4 Nb4 10. Bb5+ Bd7 11. Bxd7+ Nxd7 12. e5 Qc2 13. a3 Qxd1 14. Rxd1 Nc6 15. Nb3 Be7 16. Be3 O-O-O 17. Bg5 Bxg5 18. Nxg5 Rdf8 19. Rac1 Kb7 20. Rc3 h6 21. Nh3 Rc8 22. Nf4 g6 23. Rf3 Rc7 24. Nd3 Ndb8 25. g4 h5 26. Rh3 Rcc8 27. gxh5 Rxh5 28. Rxh5 gxh5 29. Kh1 Na5 30. Nxa5+ bxa5 31. Nc5+ Kc6 32. Rc1 Kb5 33. a4+ Kb6 34. Nd7+ Kb7 35. Rxc8 Kxc8 36. Nc5 Nc6 37. Nb3 Kb7 38. Kg2 Kb6 39. Kf3 Nb4 40. Kf4 Nd3+ 41. Kg5 Nxb2 42. Kxh5 Nxa4 43. Kg5 Nc3 44. f3 a4 45. Na1 Ne2 46. Nc2 a3 47. Nxa3 Nxd4 48. h4 Nxf3+ 49. Kf6 Nxh4 50. Kxf7 Nf3 51. Kxe6 Nxe5 52. Kxe5 Kc5 53. Kf4 Kd4 54. Nb5+ Kd3 55. Nxa7 d4 56. Nc6 Kc3 57. Ne5 d3 58. Nf3 d2 59. Nxd2 1/2-1/2
2023.10.31 Titled Tue 31st Oct Late
761815 Yezhel, Valiantsin (2311) Koellner, Ruben Gideon (2488) 0-1
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Nfd2 f5 5. e3 Nf6 6. Nc3 c5 7. d5 g6 8. b3 Bg7 9. Bb2 O-O 10. Be2 Nbd7 11. g4 Nxg4 12. Bxg4 fxg4 13. Ndxe4 Ne5 14. Qe2 Nf3+ 15. Kd1 Ne5 16. Rc1 g3 17. Kc2 g2 18. Rhg1 Bg4 19. f3 Bxf3 20. Qd2 Qd7 21. Ng5 Qg4 22. Nxf3 Rxf3 23. Rxg2 Qf5+ 24. e4 Qh5 25. Re1 Raf8 26. Kb1 Nd3 27. Re3 Nxb2 28. Rxf3 Qxf3 29. Rg3 Bxc3 30. Qxc3 Qxc3 31. Rxc3 Nd1 32. Rc1 Nf2 33. e5 Nd3 0-1
2023.10.31 Titled Tue 31st Oct Late
761967 Koellner, Ruben Gideon (2488) Chigaev, M (2627) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 c6 4. Nbd2 Bf5 5. Ne5 h5 6. Bd3 e6 7. Bxf5 exf5 8. c4 Nbd7 9. Nxd7 Qxd7 10. cxd5 Qxd5 11. O-O Bd6 12. Qb3 b6 13. Qxd5 cxd5 14. Nb1 Kd7 15. Nc3 Bb4 16. Ne2 Rhc8 17. a3 Bd6 18. Nc3 a5 19. Bd2 a4 20. Nb5 Ne4 21. Bc3 Kc6 22. Nxd6 Nxd6 23. Rac1 Kb5 24. f3 g6 25. Kf2 Rc6 26. Rce1 Re8 27. Re2 Nc4 28. Bb4 Rce6 29. Rfe1 g5 30. h3 h4 31. Bc3 f6 32. Bb4 Kc6 33. Bc3 f4 34. exf4 Rxe2+ 35. Rxe2 Rxe2+ 36. Kxe2 gxf4 37. Be1 Nxb2 38. Bxh4 b5 39. Be1 Nc4 40. Bb4 Kd7 41. Kf2 Ke6 42. Bc5 Kf5 43. Ke2 Kg5 44. Kf2 Kh5 45. Ke2 Ne3 46. Kf2 Nf5 47. Ke2 Kg5 48. Kf2 Kh6 49. Ke2 Kg6 50. Kf2 Ng7 51. Ke2 Ne6 52. Kd3 Kh5 53. Bb4 Kg5 54. Be1 Nd8 55. Kc3 Nc6 56. Bf2 Kh5 57. Be1 Kg6 58. Bf2 Kg5 59. Be1 f5 60. Bd2 Nd8 61. Kb4 Nc6+ 62. Kc5 Nxd4 63. Kxd4 1-0
2023.10.29 Rainer Radtke Mem 2023
764853 Koellner, Ruben Gideon (2483) Petrov, Martin (2500) 1/2-1/2
1. d4 Nf6 2. Bg5 d5 3. e3 c5 4. Bxf6 gxf6 5. dxc5 Nc6 6. Bb5 e6 7. c4 dxc4 8. Nd2 Qd5 9. Ngf3 Qxc5 10. Bxc4 Bg7 11. a3 O-O 12. b4 Qd6 13. Qc2 a5 14. b5 Ne5 15. Nxe5 Qxe5 16. O-O f5 17. Rac1 a4 18. Nf3 Qd6 19. Qa2 Bd7 20. Rfe1 Rac8 21. Rcd1 Qc7 22. Bd3 Rfd8 23. Qb1 Qc5 24. e4 fxe4 25. Bxe4 Qxb5 26. Bxh7+ Kf8 27. Qe4 Bc6 28. Qf4 Bxf3 29. gxf3 Rxd1 30. Rxd1 Be5 31. Qh6+ Bg7 32. Qh4 f6 33. Qe4 Rc1 34. Rxc1 Qg5+ 35. Kf1 Qxc1+ 36. Kg2 Qg5+ 37. Qg4 Qxg4+ 38. fxg4 f5 39. gxf5 exf5 40. Bxf5 Bb2 41. Bc2 Bxa3 42. Bxa4 1/2-1/2
2023.10.28 Rainer Radtke Mem 2023
764830 Gumularz, Szymon (2581) Koellner, Ruben Gideon (2483) 1-0
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Nbd7 8. Qc2 h6 9. Bh4 Nh5 10. Bxe7 Qxe7 11. Nge2 Nb6 12. O-O O-O 13. Rae1 Be6 14. f3 Rad8 15. g4 Nf6 16. Nf4 c5 17. dxc5 Qxc5 18. Nb5 Qxc2 19. Bxc2 Nc4 20. b3 Ne5 21. Nd4 Bd7 22. h4 Nc6 23. g5 hxg5 24. hxg5 Nh7 25. Bxh7+ Kxh7 26. Kf2 Nxd4 27. exd4 Rfe8 28. Rc1 Kg8 29. Rh1 Be6 30. Rc7 g6 31. Rxb7 a5 32. Rc1 Rb8 33. Rxb8 Rxb8 34. Nxe6 fxe6 35. Rc6 Kf7 36. Rc7+ Ke8 37. Ra7 Rc8 38. Rxa5 Rc3 39. Ke2 Kd7 40. Rc5 Rxc5 41. dxc5 e5 42. b4 Kc6 43. a4 d4 44. Kd3 Kd5 45. a5 1-0
2023.10.27 Rainer Radtke Mem 2023
764807 Koellner, Ruben Gideon (2483) Pultinevicius, Paulius (2586) 1-0
1. d4 Nf6 2. Nf3 b6 3. e3 Bb7 4. Bd3 c5 5. c4 e6 6. Nc3 Be7 7. O-O a6 8. Re1 Qc7 9. d5 exd5 10. e4 dxe4 11. Nxe4 O-O 12. Bg5 Qd8 13. Ng3 g6 14. Qd2 Bxf3 15. gxf3 d5 16. cxd5 Nxd5 17. Rxe7 Nxe7 18. Re1 Ra7 19. Nh5 Qd6 20. Nf6+ Kh8 21. Ne4 Qc6 22. Qc3+ f6 23. Nxf6 Nf5 24. Nd7+ Nd4 25. Nxf8 Qxf3 26. Bc4 Qxf8 27. Re4 Nd7 28. Qe3 Ra8 29. Bh6 Nf5 30. Qc3+ Qf6 31. Bg5 Qxc3 32. bxc3 Kg7 33. Re6 Kf8 34. Bd5 Re8 35. Rc6 Re5 36. Rc8+ Kg7 37. Rg8# 1-0
2023.10.26 Rainer Radtke Mem 2023
764761 Koellner, Ruben Gideon (2483) Stremavicius, Pijus (2359) 1-0
1. d4 d5 2. Nf3 e6 3. c3 c5 4. Bg5 Be7 5. Bxe7 Qxe7 6. e3 Nf6 7. Nbd2 O-O 8. Bd3 Nbd7 9. Ne5 Nxe5 10. dxe5 Nd7 11. f4 f6 12. Nf3 fxe5 13. fxe5 c4 14. Bc2 Nc5 15. Qd4 Bd7 16. Rc1 Ba4 17. Bb1 Be8 18. O-O Bg6 19. Bxg6 hxg6 20. Qg4 Rf5 21. Qxg6 Nd3 22. Rcd1 Nxe5 23. Nxe5 Rxe5 24. Rd4 Rg5 25. Qc2 Rf8 26. Rdf4 Rgf5 27. Qd2 Qg5 28. g3 Rxf4 29. exf4 Qf5 30. Re1 Rf6 31. Qd1 Qg6 32. Kf2 b5 33. Re5 Rf5 34. Re2 Qf7 35. Qe1 Rf6 36. Re5 a5 37. Qe3 b4 38. h4 Qg6 39. Kf3 bxc3 40. bxc3 Kh7 41. g4 Qb1 42. g5 Rf5 43. Rxe6 Qxa2 44. g6+ Kh6 45. Re8 Kxg6 46. Qe6+ Rf6 47. h5+ Kxh5 48. Qg4+ 1-0
2023.10.26 Rainer Radtke Mem 2023
764784 Hagner, Bennet (2307) Koellner, Ruben Gideon (2483) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 h5 6. h3 c6 7. Be3 h4 8. Ng5 Be7 9. g3 b5 10. a3 Bb7 11. gxh4 Rxh4 12. Qf3 exd4 13. Bxd4 c5 14. Be3 b4 15. axb4 cxb4 16. Nd5 Bxd5 17. exd5 Ne5 18. Qg2 Nh5 19. Bb5+ Kf8 20. Bc6 Rc8 21. Rxa7 Bxg5 22. Bxg5 Qxg5 23. Qxg5 Nf3+ 24. Kf1 Nxg5 25. Rxg5 Nf6 26. Ra4 Rb8 27. Rg3 Rc4 28. Re3 Rxc2 29. Ra7 Kg8 30. Ree7 Rf8 31. Re2 Rc1+ 32. Kg2 g5 33. Rb7 Rc4 34. Re3 Rd4 35. Rb5 Nh5 36. Rb3 Nf4+ 37. Kg3 Kg7 38. R5xb4 Rd2 39. h4 Ne2+ 40. Kg2 Nf4+ 41. Kf3 f6 42. hxg5 fxg5 43. Rb8 Rxb8 44. Rxb8 Nxd5 45. b4 Ne7 46. Ba8 Rc2 47. b5 Rc8 48. Rb7 Rxa8 49. Rxe7+ Kf6 50. Re3 Rb8 51. Rb3 Ke5 52. Kg4 Kd5 53. Rb1 Kc4 54. b6 d5 55. Kxg5 d4 56. f4 d3 57. f5 d2 58. Rd1 Kd3 59. f6 Rxb6 60. f7 1/2-1/2
2023.10.25 Rainer Radtke Mem 2023
764738 Tschernatsch, Johannes (2346) Koellner, Ruben Gideon (2483) 0-1
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Bb5 Ne4 8. cxd4 Bb6 9. Nc3 O-O 10. Be3 Bg4 11. h3 Bh5 12. Qc2 Bg6 13. Qb3 Na5 14. Qa4 Nxc3 15. bxc3 c6 16. Be2 Bc7 17. O-O b5 18. Qd1 Nc4 19. Bg5 f6 20. Bh4 Qd7 21. exf6 gxf6 22. Ne1 Nd6 23. Rc1 Nf5 24. Nf3 Qd6 25. Bg3 Nxg3 26. fxg3 Qxg3 27. Qe1 Rae8 28. Qxg3 Bxg3 0-1
2023.10.24 Rainer Radtke Mem 2023
764692 Farokhi, Keyvan (2274) Koellner, Ruben Gideon (2483) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. g4 Nxg4 6. Rg1 Ngf6 7. Bc4 h6 8. Be3 c6 9. dxe5 dxe5 10. Qd3 b5 11. Bb3 Qa5 12. O-O-O Ba6 13. Nd2 Qc7 14. Qf1 g6 15. f4 Bc5 16. Bxc5 Nxc5 17. Qf2 Nxb3+ 18. axb3 Nh5 19. f5 Nf4 20. Qc5 O-O-O 21. Nf3 b4 22. Qxb4 Be2 23. Rxd8+ Rxd8 24. fxg6 fxg6 25. Nd2 Qb6 26. Qxb6 axb6 27. Re1 Ba6 28. Nf3 Re8 29. Kd2 Rd8+ 30. Kc1 Re8 31. Kd2 Kc7 32. Ra1 Bc8 33. Ke3 Ng2+ 34. Kf2 Nf4 35. Ke3 g5 36. b4 b5 37. Nd1 Bg4 38. Nf2 Ng2+ 39. Ke2 Nf4+ 40. Ke3 Ng2+ 41. Ke2 Bh5 42. Rg1 Rf8 43. Rxg2 Bxf3+ 44. Kf1 Bxg2+ 45. Kxg2 Rf4 46. h3 Kd6 47. c3 h5 48. Kg3 Ke7 49. Kg2 Kf6 50. Kg3 Kg6 51. Kg2 g4 52. hxg4 hxg4 0-1
2023.10.24 Rainer Radtke Mem 2023
764715 Koellner, Ruben Gideon (2483) Tobak, Mikhail (2313) 1/2-1/2
1. d4 g6 2. Nf3 Bg7 3. e4 c5 4. d5 d6 5. Nc3 Nf6 6. Be2 O-O 7. O-O Bg4 8. Nd2 Bxe2 9. Qxe2 Nfd7 10. f4 Na6 11. Nc4 Nc7 12. a4 a6 13. a5 Nb5 14. Na4 Qe8 15. Nab6 Nxb6 16. axb6 e6 17. Qd3 f5 18. c3 fxe4 19. Qxe4 exd5 20. Qxd5+ Qf7 21. Ne3 Rae8 22. Bd2 Qxd5 23. Nxd5 Rf5 24. Ne3 Rf7 25. Rae1 Rfe7 26. Kf2 Kf7 27. Kf3 Ke6 28. g4 Kd7 29. Nd5 Rxe1 30. Rxe1 Rxe1 31. Bxe1 a5 32. Ke4 a4 33. f5 gxf5+ 34. gxf5 Be5 35. h3 a3 36. bxa3 Nxa3 37. Kd3 c4+ 38. Ke4 Nb1 39. Kf3 Kc6 40. Ke4 Kd7 41. Ne3 Bxc3 42. Bxc3 Nxc3+ 43. Kd4 Na4 44. Nxc4 Ke7 45. Ke4 Kf6 46. Nxd6 Nxb6 47. Nxb7 Na4 48. Kf4 Nc3 49. Nd6 Nd5+ 50. Ke4 Nc3+ 51. Kd4 Ne2+ 52. Ke3 Ng1 53. h4 Ke5 54. Kf2 Kxd6 55. Kxg1 Ke5 56. Kf2 Kxf5 57. Kf3 1/2-1/2
2023.10.23 Rainer Radtke Mem 2023
764669 Koellner, Ruben Gideon (2483) Malinowsky, Levi (2151) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 c6 6. c4 a5 7. b5 dxc4 8. Bxc4 cxb5 9. Bxb5+ Bd7 10. Rb1 Nc6 11. O-O O-O 12. Nc4 Nd5 13. Bd2 Bf5 14. Rb2 a4 15. Re1 Na7 16. e4 Nxb5 17. Rxb5 Nc7 18. Ba5 Bg4 19. Rxb7 Rxa5 20. Nxa5 Ne6 21. Nc6 Qa8 22. Rb6 Re8 23. d5 Ng5 24. Qc1 Nxf3+ 25. gxf3 Bh5 26. Qf4 e5 27. dxe6 fxe6 28. Qc7 1-0
2023.10.22 Bundesliga 2023-24
776661 Wegerle, J (2405) Koellner, Ruben Gideon (2483) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 h6 6. Bxf6 Bxf6 7. e3 O-O 8. Qc2 c6 9. Bd3 Nd7 10. cxd5 exd5 11. O-O Be7 12. Rad1 Nf6 13. Ne5 Ng4 14. Nxg4 Bxg4 15. Be2 Bxe2 16. Nxe2 Bd6 17. Nc1 Qh4 18. g3 Qh3 19. e4 dxe4 20. Qxe4 Rfe8 21. Qf3 Rad8 22. Ne2 Bb4 23. Nc3 Bxc3 24. bxc3 Qe6 25. Rd2 Qc4 26. Rfd1 Rd5 27. Qd3 Qxd3 28. Rxd3 Ra5 29. R3d2 Ra4 30. Rb1 b6 31. Kf1 Rc4 32. Rd3 Kf8 33. Rb4 Rxb4 34. cxb4 Rd8 35. Ke2 Rd5 36. Rc3 Rd6 37. Ke3 Ke7 38. Ra3 Rd7 39. Ke4 Kd6 40. Re3 Re7+ 41. Kd3 Rxe3+ 42. Kxe3 Kd5 43. Kd3 f5 44. f3 g6 45. h3 a6 46. a3 a5 47. bxa5 bxa5 48. g4 fxg4 49. fxg4 h5 50. gxh5 gxh5 51. h4 a4 52. Kc3 c5 53. dxc5 Kxc5 54. Kd3 Kd5 55. Kc3 Kc5 1/2-1/2
2023.10.21 Bundesliga 2023-24
776597 Koellner, Ruben Gideon (2483) Dordevic, Tom (1997) 1-0
1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 Bd6 5. Ne5 O-O 6. Nd2 c5 7. c3 c4 8. g4 Qc7 9. g5 Nfd7 10. Nxd7 Nxd7 11. Bxd6 Qxd6 12. f4 b5 13. Bg2 Rb8 14. a3 a5 15. O-O f5 16. gxf6 Nxf6 17. Qf3 Bd7 18. Rae1 Bc6 19. Qh3 Ne4 20. Nxe4 dxe4 21. f5 exf5 22. Rxf5 Rxf5 23. Qxf5 Rf8 24. Qg4 Qg6 25. Qxg6 hxg6 26. Bh3 Rf6 27. Rd1 Bd5 28. Rf1 Rb6 29. Kf2 b4 30. axb4 axb4 31. Ra1 bxc3 32. bxc3 Kf7 33. Ra5 Bb7 34. Kg3 Kf6 35. Rc5 Rb2 36. Bg4 Rb1 37. h3 Rg1+ 38. Kf2 Rc1 39. Rxc4 Kg5 40. d5 Bxd5 41. Rc5 Kh4 42. Rxd5 Rxc3 43. Rd4 Rc2+ 44. Ke1 1-0
2023.10.17 Titled Tue 17th Oct Early
773044 Koellner, Ruben Gideon (2483) Shoshin, Kirill (2250) 1-0
1. d4 Nf6 2. Nf3 b6 3. Nbd2 d5 4. e3 Bb7 5. Bd3 e6 6. Ne5 Bd6 7. f4 c5 8. c3 Nc6 9. O-O O-O 10. Qf3 Ne7 11. g4 g6 12. g5 Nd7 13. Ng4 f5 14. gxf6 Nxf6 15. Nh6+ Kh8 16. Qh3 Nf5 17. Nf3 Ne4 18. Bxe4 dxe4 19. Ng5 Nxh6 20. Qxh6 Qe7 21. b3 cxd4 22. cxd4 Ba6 23. Rf2 Rac8 24. Bb2 Kg8 25. h4 Rf5 26. h5 gxh5 27. Rg2 Qg7 28. Qxg7+ Kxg7 29. Nxe4+ 1-0
2023.10.17 Titled Tue 17th Oct Early
773354 Przybylski, W (2308) Koellner, Ruben Gideon (2483) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. a5 h6 8. O-O Qc7 9. Re1 Nf8 10. h3 g5 11. Nh2 Ng6 12. d5 Kf8 13. a6 b5 14. Bf1 b4 15. Na2 c5 16. g3 Rb8 17. b3 Rb6 18. Bb2 Bxa6 19. Nc1 Bxf1 20. Nxf1 Qd7 21. Kg2 h5 22. Nd3 h4 23. g4 Nf4+ 24. Kh2 Rb7 25. Qf3 Rc7 26. Ne3 Ne8 27. Ra6 Ng7 28. Rea1 f6 29. Nc4 Kf7 30. Ne1 Rb8 31. Ng2 Kg6 32. Bc1 Rbb7 33. Nge3 Bf8 34. Nf5 Nxf5 35. gxf5+ Kh6 36. Bxf4 exf4 37. Rg1 Qb5 38. Ra5 Qe8 39. Qg2 Rd7 40. f3 Qh5 41. Qf2 Be7 42. Kg2 Bd8 43. Ra6 Bb6 44. Rga1 Qe8 45. Qd2 Qf8 46. R1a2 Qe7 47. Qc1 Kh5 48. Qa1 Kh6 49. Qb2 Kh5 50. Kf2 Kh6 51. Ke2 Qf7 52. Qa1 Kg7 53. Kd3 Qh5 54. Qf1 Qf7 55. R6a4 Kh6 56. Qg2 Qh5 57. Qe2 Qf7 58. Qd1 Qe7 59. Qa1 Qf7 60. Ke2 Qe7 61. Ra6 Qf7 62. Nd2 Qe8 63. Nc4 Qf7 64. Kf2 Kg7 65. Kg2 Kh6 66. R6a4 Qe7 67. Qf1 Kg7 68. Nb2 Qe8 69. Qb5 Qe7 70. Kf1 Rdc7 71. Ra6 Kh6 72. Qd3 1-0
2023.10.17 Titled Tue 17th Oct Early
773540 Koellner, Ruben Gideon (2483) Shevchuk, Olexandr (2093) 0-1
1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Nbd2 Nbd7 5. Ne5 c5 6. c3 Bd6 7. f4 Qc7 8. Bd3 a6 9. Qf3 b5 10. O-O Bb7 11. Qh3 b4 12. g4 Ne4 13. Qg2 Nxd2 14. Bxd2 bxc3 15. bxc3 Rc8 16. Rab1 f6 17. Nxd7 Qxd7 18. g5 f5 19. h4 Ke7 20. h5 Rb8 21. g6 h6 22. Be1 Rhc8 23. Bh4+ Kf8 24. Qe2 Qa4 25. Rb2 Bc6 26. Rfb1 a5 27. Rxb8 Rxb8 28. Rxb8+ Bxb8 29. dxc5 Qa3 30. c4 Qxc5 31. Bf2 Ba7 32. cxd5 Qxd5 33. e4 Bxf2+ 34. Kxf2 fxe4 35. Bc4 Qd4+ 36. Kg3 Qc3+ 37. Kh4 e3 38. Bxe6 Qf6+ 39. Kg3 Qxe6 40. a3 Qe4 41. Qb2 Qf3+ 42. Kh4 Qxf4+ 43. Kh3 Bd7+ 44. Kg2 Qf2+ 45. Qxf2+ exf2 46. Kxf2 Bg4 47. Ke3 Bxh5 48. Kd4 Bxg6 49. Kc5 Be8 50. Kb6 a4 51. Kc5 Ke7 52. Kd4 Kf6 53. Ke3 h5 54. Kf4 g5+ 55. Kg3 h4+ 56. Kh3 Bd7+ 57. Kg2 Kf5 58. Kh2 Kf4 59. Kg2 g4 60. Kg1 h3 61. Kh2 Bc6 62. Kg1 g3 63. Kf1 h2 64. Ke2 h1=Q 65. Kd3 Bb5+ 66. Kc3 Qd5 67. Kb4 Qb3+ 68. Ka5 g2 69. Kb6 g1=Q+ 70. Ka5 Qa7# 0-1
2023.10.17 Titled Tue 17th Oct Early
773786 Shohat, Yotam (2332) Koellner, Ruben Gideon (2483) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. dxe5 Nxe5 7. Nxe5 dxe5 8. Qxd8+ Bxd8 9. a4 c6 10. a5 Be7 11. f3 Bb4 12. Bd2 Ke7 13. Ra4 Bc5 14. Ke2 Be6 15. Be3 Bxe3 16. Kxe3 b5 17. axb6 axb6 18. Bxe6 Kxe6 19. Rha1 Rxa4 20. Rxa4 Nd7 21. Ra7 Kd6 22. b4 b5 23. Rb7 Ra8 24. Nd1 Ra6 25. Nf2 Ke7 26. Nd3 Ra3 27. Kd2 Kd6 28. g3 f6 29. f4 h5 30. fxe5+ fxe5 31. Nc5 Nxc5 32. bxc5+ Kxc5 33. Rxg7 Kd4 34. Rg5 Rf3 35. Rxh5 Rf2+ 36. Kd1 Kxe4 37. Rh6 c5 38. h4 Ke3 39. Kc1 e4 40. h5 Rf1+ 41. Kb2 Rh1 42. g4 Kf4 43. Rc6 Kxg4 44. Rxc5 Rxh5 45. Rc8 e3 46. Kc3 Kf4 47. Kd3 Rd5+ 48. Ke2 Rd2+ 49. Ke1 Rh2 50. Rb8 Kf3 51. Rf8+ Ke4 52. Re8+ Kd4 53. Rb8 Kc4 54. Rc8+ Kb4 55. Re8 Rxc2 56. Rxe3 Rc3 57. Re4+ Kb3 58. Kd2 Rc2+ 59. Kd1 Rc7 60. Re3+ Kb2 61. Re4 Rc4 62. Re2+ Kb1 63. Re3 b4 64. Kd2 Kb2 65. Re8 Rd4+ 66. Ke3 Rd6 67. Rb8 b3 68. Rc8 Kb1 69. Ke2 b2 70. Ke1 Rd5 71. Rb8 Rd4 72. Ke2 Kc2 73. Rc8+ Kb3 74. Rb8+ Rb4 0-1
2023.10.17 Titled Tue 17th Oct Early
773816 Koellner, Ruben Gideon (2483) Shturman, Arseniy (2161) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nc6 6. Bd3 c4 7. Bc2 b5 8. O-O Bb7 9. e4 dxe4 10. Nxe4 Be7 11. Qe2 O-O 12. Re1 Nd5 13. Bg5 h6 14. Bd2 a6 15. Rad1 Qc7 16. a3 Rad8 17. g3 Rfe8 18. h4 Bf8 19. Bc1 f5 20. Neg5 hxg5 21. Nxg5 g6 22. h5 e5 23. hxg6 exd4 24. Qh5 d3 25. Rxe8 Rxe8 26. g7 Qxg7 27. Qxe8 dxc2 28. Rxd5 Ne7 29. Rd8 Qh6 30. Qf7+ Kh8 31. Rxf8+ Qxf8 32. Qxf8+ Ng8 33. Nf7+ Kh7 34. Ng5+ Kh8 35. Ne6 1-0
2023.10.17 Titled Tue 17th Oct Early
774116 Perossa, Nicolas (2285) Koellner, Ruben Gideon (2483) 0-1
1. d4 d6 2. Nf3 Nf6 3. Nc3 Nbd7 4. e4 e5 5. Bc4 Be7 6. O-O c6 7. a4 Qc7 8. h3 h6 9. b3 Nf8 10. Bb2 Ng6 11. Re1 O-O 12. Bd3 b6 13. Ne2 Re8 14. Ng3 Bf8 15. c4 a5 16. Qc2 Be6 17. d5 Bd7 18. dxc6 Bxc6 19. Rad1 Nd7 20. Nf5 Nc5 21. Bc1 Ne7 22. Ne3 Rac8 23. Qb1 Qb7 24. Nd5 Nxd5 25. exd5 Bd7 26. Bc2 Rc7 27. Nd2 Qc8 28. Ne4 f5 29. Nc3 g6 30. Be3 Bg7 31. Nb5 Bxb5 32. Bxc5 Rxc5 33. axb5 Rc7 34. Qa2 Rce7 35. Bd3 e4 36. Bf1 Qc5 37. Re2 f4 38. Qc2 g5 39. Rde1 e3 40. f3 Rf7 41. Rd1 Qb4 42. Rd3 Rc8 43. Rd1 a4 44. bxa4 Rxc4 45. Qg6 Qxa4 46. Rb1 Qc2 47. Qxc2 Rxc2 48. Rxc2 Bd4 49. Be2 Ra7 50. Rd1 Bc5 51. g3 Kg7 52. h4 Kf6 53. hxg5+ hxg5 54. Kg2 Ke5 55. Rh1 Rg7 56. Rd1 Ra7 57. Rdc1 Kxd5 58. Rd1+ Ke5 59. Bc4 Ra4 60. Rd5+ Kf6 61. Rd3 Rb4 62. Bb3 Rxb5 63. Rc4 d5 64. Rc2 d4 65. Bc4 Rb1 66. Kh3 Rh1+ 67. Kg4 Rg1 68. Rb3 Rxg3+ 69. Kh5 Rh3+ 70. Kg4 Rh4# 0-1
2023.10.17 Titled Tue 17th Oct Early
774347 Koellner, Ruben Gideon (2483) Hajiyev, K (2113) 1-0
1. d4 d5 2. Nf3 c5 3. e3 cxd4 4. exd4 Nc6 5. c3 Bg4 6. Nbd2 e6 7. Bb5 Bd6 8. Qa4 Ne7 9. Ne5 Bxe5 10. dxe5 Bf5 11. Nf3 O-O 12. O-O Qc7 13. Qf4 Ng6 14. Qg3 Ncxe5 15. Nd4 Qb6 16. h4 h5 17. Be2 Bg4 18. f3 Bf5 19. Kh2 Qd8 20. Nxf5 exf5 21. Bg5 f6 22. Be3 Kh7 23. Rfe1 Re8 24. Bd4 f4 25. Qh3 Qc8 26. Rad1 Qxh3+ 27. Kxh3 b6 28. Bb5 Red8 29. Ba4 Rac8 30. Bc2 Kh6 31. Bf5 Rc7 32. a4 Nc4 33. b3 Nce5 34. a5 b5 35. b4 Nc4 36. Re6 Ne7 37. Bb1 Ng6 38. g3 Rd6 39. Re8 Rcd7 40. gxf4 Nxf4+ 41. Kg3 Ne6 42. Bf2 g6 43. Re1 Nc7 44. R8e7 Rxe7 45. Rxe7 Ne6 46. Rxa7 f5 47. f4 d4 48. cxd4 Nxd4 49. a6 Nc6 50. Ra8 Nxb4 51. a7 Ra6 52. Rh8+ Kg7 53. a8=Q Rxa8 54. Rxa8 Nd2 55. Bd4+ Kf7 56. Ra1 Ne4+ 57. Bxe4 fxe4 58. Rb1 Nc2 59. Bc3 b4 60. Bxb4 Ke6 61. Bd2 Nd4 62. Kf2 Nf5 63. Rb6+ Kf7 64. Rb7+ Ke6 65. Rb5 Nxh4 66. Re5+ Kf6 67. Rxe4 Nf5 68. Bc3+ Kf7 69. Ra4 Nd6 70. Ra7+ Ke6 71. Ra6 Kd5 72. Be5 Ne4+ 73. Ke3 Nc5 74. Rxg6 Ne6 75. Rh6 Nc5 76. Rxh5 Ke6 77. Bd4 Nd7 78. Ke4 Nf8 79. Rh6+ Kf7 80. f5 Ke7 81. Bc5+ Kf7 82. Bxf8 Kxf8 83. Rh7 Kg8 84. Ra7 Kf8 85. Ke5 Ke8 86. Kf6 Kd8 87. Ke6 Kc8 88. Kd6 Kb8 89. Rc7 Ka8 90. Kc6 Kb8 91. Kb6 Ka8 92. f6 Kb8 93. f7 1-0
2023.10.17 Titled Tue 17th Oct Early
774378 Rosenberg, E (1858) Koellner, Ruben Gideon (2483) 0-1
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. f3 Bd6 9. Be3 Ke7 10. O-O-O a6 11. Nge2 Nbd7 12. h4 b5 13. h5 h6 14. Bf2 Rhb8 15. Bh4 Kf7 16. Kb1 a5 17. Nc1 a4 18. a3 b4 19. axb4 Bxb4 20. N1a2 Bd6 21. Ka1 Nb6 22. Nb5 Nc4 23. Nxd6+ cxd6 24. Nc3 Rxb2 25. Rxd6 Rxc2 26. Rd3 Nxh5 27. Rb1 Nf4 28. Rd7+ Kg6 29. Nb5 Rxg2 30. Be7 a3 31. Rc7 Nd2 32. Nxa3 Nxb1 33. Kxb1 Rb8+ 34. Kc1 Rb3 35. Bd6 Rxf3 36. Bxe5 Rf1# 0-1
2023.10.17 Titled Tue 17th Oct Early
774641 Koellner, Ruben Gideon (2483) Weetik, V (2423) 1/2-1/2
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 c6 7. Be2 a5 8. b5 cxb5 9. cxb5 Bf5 10. a4 Nbd7 11. Ba3 Ne4 12. Rc1 Rc8 13. Rxc8 Qxc8 14. Nxe4 Bxe4 15. O-O Re8 16. Qb3 e5 17. Rc1 Qb8 18. b6 exd4 19. Nxd4 Bxd4 20. exd4 Qf4 21. Bb5 Rd8 22. Qg3 Qxg3 23. hxg3 Nxb6 24. Rc7 Nc4 25. Be7 Rb8 26. Bf6 Nd6 27. Bd7 Ne8 28. Bxe8 Rxe8 29. Rxb7 Bc2 30. Rb5 Bxa4 31. Rxd5 Ra8 32. Rc5 Be8 33. d5 a4 34. d6 a3 35. Rc7 a2 36. Kh2 h6 37. Ba1 Rd8 38. Ra7 Rxd6 39. Ra8 Re6 40. Rxa2 g5 41. Ra3 Kh7 42. f3 Kg6 43. Ra8 Bc6 44. Rg8+ Kf5 45. g4+ Kf4 46. Rg7 Be8 47. Rh7 Ke3 48. Rh8 Ke2 49. Bg7 Kf1 50. Bxh6 Re2 51. Bxg5 Rxg2+ 52. Kh3 Bc6 53. Rc8 Bxf3 54. Rc1+ Ke2 55. Rc2+ Kf1 56. Rc1+ Ke2 57. Rc2+ Kf1 58. Rxg2 Bxg2+ 59. Kg3 Bd5 60. Bf6 Be6 61. g5 Bf5 62. Kf4 Bg6 63. Ke5 Ke2 64. Kd6 Kf3 65. Ke7 Ke4 66. Kf8 Kd5 67. Kg7 Ke6 68. Kh6 Kd5 69. Kg7 Ke6 70. Kh6 Kd5 71. Kg7 1/2-1/2
2023.10.17 Titled Tue 17th Oct Early
774778 Bacrot, E (2669) Koellner, Ruben Gideon (2483) 0-1
1. e4 d6 2. Nf3 Nf6 3. Nc3 e5 4. d4 Nbd7 5. Bc4 Be7 6. a4 c6 7. a5 h6 8. O-O Qc7 9. h3 Nf8 10. Re1 g5 11. d5 Ng6 12. a6 b5 13. Bb3 b4 14. Ba4 Bd7 15. dxc6 Bxc6 16. Nd5 Nxd5 17. Qxd5 Rc8 18. Bxc6+ Qxc6 19. Qxc6+ Rxc6 20. Be3 Kd7 21. Red1 Ke6 22. Ra4 f5 23. exf5+ Kxf5 24. Bxa7 Ra8 25. Be3 Raxa6 26. Rxa6 Rxa6 27. Rd5 Ke6 28. Rb5 d5 29. Bd2 Rc6 30. Bxb4 Bxb4 31. Rxb4 Rxc2 32. Rb6+ Kf7 33. g3 e4 34. Rb7+ Ke8 35. Nd4 Rd2 36. Nf5 Kd8 37. Nxh6 Kc8 38. Rb5 Ne5 39. h4 g4 40. h5 Nf3+ 41. Kg2 e3 42. Nxg4 e2 43. Rc5+ Kb7 44. Rc1 Rd1 45. Kxf3 e1=Q 46. Rxd1 Qxd1+ 47. Kf4 Qd4+ 48. Kg5 Qg7+ 49. Kf5 d4 50. h6 Qd7+ 51. Kg5 d3 52. Nf6 Qe7 53. h7 Qg7+ 54. Kf5 d2 55. Ne8 Qxh7+ 0-1
2023.10.17 Titled Tue 17th Oct Early
774849 Koellner, Ruben Gideon (2483) Pranav, Anand (2509) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 c6 7. Be2 a5 8. b5 c5 9. dxc5 Ne4 10. Nxe4 Bxa1 11. cxd5 Bg7 12. O-O Nd7 13. Ba3 Ne5 14. Nxe5 Bxe5 15. f4 Bg7 16. Ng3 h5 17. e4 h4 18. Nh1 h3 19. g4 a4 20. Nf2 Qa5 21. Qd3 e6 22. d6 Bd7 23. Nxh3 Qc3 24. Qxc3 Bxc3 25. Rc1 Bd4+ 26. Kg2 e5 27. c6 Be6 28. d7 bxc6 29. Bxf8 Kxf8 30. bxc6 Ke7 0-1
2023.10.17 Titled Tue 17th Oct Late
774989 Koellner, Ruben Gideon (2483) Ljubarov, M (2305) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. c3 Nc6 5. Nbd2 Bf5 6. dxc5 e6 7. b4 a5 8. Bb5 Be7 9. Nd4 Qc7 10. Nxf5 exf5 11. Bb2 O-O 12. a3 Ng4 13. Nf3 Nce5 14. h3 Nxf3+ 15. Qxf3 Ne5 16. Qxf5 g6 17. Qf4 Rfe8 18. O-O Rec8 19. c4 Nxc4 20. Qxc7 Rxc7 21. Bxc4 dxc4 22. Rfc1 axb4 23. axb4 Rxa1 24. Bxa1 b6 25. cxb6 Rc6 26. Bd4 Bxb4 27. b7 Bd6 28. Ra1 f5 29. Ra8+ Kf7 30. b8=Q Bxb8 31. Rxb8 c3 32. Rb1 c2 33. Rc1 Ke6 34. Kf1 Kd5 35. Ke2 f4 36. Kd3 fxe3 37. fxe3 Ra6 38. Rxc2 Ra3+ 39. Rc3 Ra2 40. Rc5+ Ke6 41. Rc2 Ra3+ 42. Ke4 Ra4 43. Rc6+ Kf7 44. Rc7+ 1-0
2023.10.17 Titled Tue 17th Oct Late
775130 Gulbeyaz, Emir (2225) Koellner, Ruben Gideon (2483) 0-1
1. d4 d6 2. Bf4 Nf6 3. Nc3 Nc6 4. Nf3 g6 5. e4 Bg7 6. Qd2 O-O 7. Bh6 e5 8. d5 Nd4 9. Bxg7 Nxf3+ 10. gxf3 Kxg7 11. O-O-O Nh5 12. Ne2 Qh4 13. Qe3 Bd7 14. Kb1 f5 15. Qc3 Rac8 16. exf5 Bxf5 17. Ng3 Nf4 18. Bc4 Bh3 19. Rhg1 Rf7 20. Qe3 b6 21. Bf1 Bd7 22. Bd3 Rcf8 23. Be4 Bh3 24. a3 a5 25. Qc3 Kh8 26. Qe3 Bg2 27. Ne2 Nxe2 28. Qxe2 Bxf3 29. Bxf3 Rxf3 30. Qc4 Qxc4 0-1
2023.10.17 Titled Tue 17th Oct Late
775312 Zhigalko, S (2572) Koellner, Ruben Gideon (2483) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. Bd3 Nf8 10. Ne2 Nh5 11. Ng3 Nxg3 12. hxg3 Ng6 13. Be3 O-O 14. c3 Re8 15. Qc2 Nf8 16. Rad1 a5 17. Bc4 Be6 18. Qb3 Bxc4 19. Qxc4 Ne6 20. Qb3 Bg5 21. d5 Bxe3 22. Rxe3 Nc5 23. Qc4 Red8 24. Nh4 g6 25. dxc6 Qxc6 26. Nxg6 Qxa4 27. Qd5 Qb3 28. Ne7+ Kf8 29. Qxb3 Nxb3 30. Nf5 a4 31. Nxh6 Ke7 32. Rf3 f6 33. Ng4 Rf8 34. Ne3 Ra6 35. Nd5+ Kd7 36. Nxf6+ Kc6 37. Nd5 Rxf3 38. gxf3 Ra8 39. f4 Nc5 40. f3 Rg8 41. Ne7+ 1-0
2023.10.17 Titled Tue 17th Oct Late
775508 Koellner, Ruben Gideon (2483) Smieszek, W (2118) 1-0
1. d4 Nf6 2. Nf3 c5 3. e3 g6 4. Nbd2 d6 5. Be2 Bg7 6. O-O O-O 7. b3 b6 8. Bb2 Bb7 9. c4 Ne4 10. Rb1 Nd7 11. Qc2 Nxd2 12. Nxd2 cxd4 13. exd4 e5 14. Ne4 Nf6 15. Nxd6 Qxd6 16. dxe5 Be4 17. Qxe4 Nxe4 18. exd6 Nd2 19. Bxg7 Kxg7 20. Rbd1 Nxf1 21. Kxf1 Rfd8 22. b4 Rac8 23. Rd5 a5 24. bxa5 Rc5 25. a6 Rxd5 26. cxd5 Rxd6 27. a7 Rd8 28. d6 Ra8 29. d7 Kf8 30. Bf3 Rd8 31. a8=Q Rxa8 32. Bxa8 Ke7 33. Bd5 Kxd7 34. Bxf7 Kc6 35. Bg8 h6 36. Bf7 g5 37. Ke2 Kb5 38. Kf3 Kb4 39. Kg4 1-0
2023.10.17 Titled Tue 17th Oct Late
775696 Luxama, Jacques Muller (1933) Koellner, Ruben Gideon (2483) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nge2 Nc6 5. f3 exd4 6. Nxd4 d5 7. Nxc6 bxc6 8. Bg5 Be7 9. e5 Nd7 10. Bf4 Bg5 11. Bg3 Bh4 12. f4 O-O 13. Bd3 g6 14. Qf3 Nc5 15. O-O-O Nxd3+ 16. Rxd3 Bf5 17. Rd2 Be7 18. Bf2 Qc8 19. h3 h5 20. g4 hxg4 21. hxg4 Bxg4 22. Qg2 Qf5 23. Qh2 Bh5 24. Bh4 Bxh4 25. Qxh4 Kg7 26. Ne2 Rh8 27. Ng3 Qe6 28. Rg1 Bg4 29. Qg5 Rh3 30. Rf2 Kf8 31. f5 Rxg3 32. Rxg3 Bxf5 33. Qf6 Qxf6 34. exf6 Rd8 35. Re3 Rd6 36. Ra3 Rxf6 37. Rxa7 Re6 38. Rxc7 Kg7 39. a4 Re1+ 40. Kd2 Ra1 41. b3 Ra2 42. Kc3 d4+ 43. Kxd4 Ra1 44. Rxc6 Rd1+ 45. Kc5 Rc1 46. Kb6 Be6 47. a5 Ra1 48. a6 g5 49. Rxe6 fxe6 50. a7 g4 51. Rg2 Kf6 52. Rxg4 Kf5 53. Rg2 e5 54. Kb7 Kf4 55. a8=Q Rxa8 56. Kxa8 Kf3 57. Rg8 e4 58. Re8 Ke3 59. Ka7 Kd4 60. Ka6 e3 61. b4 Kc4 62. Rxe3 Kxb4 63. Rb3+ Kc4 64. Ka5 Kc5 65. Ka4 Kc4 66. Ka3 Kc5 67. Kb2 Kc4 68. c3 Kc5 69. Rb4 Kc6 70. Kb3 Kc5 71. c4 Kc6 72. Rb5 Kc7 73. Kb4 Kc6 74. c5 Kc7 75. Rb6 Kc8 76. Kb5 Kc7 77. c6 Kc8 78. Kc5 Kd8 79. Kd6 Kc8 80. Rb1 Kd8 81. Rb8# 1-0
2023.10.17 Titled Tue 17th Oct Late
775798 Koellner, Ruben Gideon (2483) Tikhonov, Viacheslav (2177) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 a5 7. b5 c5 8. dxc5 Ne4 9. Nxe4 Bxa1 10. cxd5 Bf5 11. Ng3 Bc3+ 12. Bd2 Bb4 13. Nxf5 gxf5 14. Bxb4 axb4 15. Bc4 Nd7 16. Qd4 Qc7 17. c6 Nb6 18. Bb3 Rad8 19. O-O e6 20. Qxb4 Nxd5 21. Bxd5 Rxd5 22. Nd4 bxc6 23. Nxc6 Rd6 24. a4 Ra8 25. Nd4 Rd5 26. Ra1 Qc5 27. Qxc5 Rxc5 28. g3 e5 29. Nxf5 Rxb5 30. Rc1 Rbb8 31. Rc7 Rf8 32. Rc4 Ra6 33. Kg2 h6 34. a5 Kh7 35. Rc5 Re8 36. g4 Kg6 37. Kg3 h5 38. h3 hxg4 39. hxg4 Kf6 40. Rb5 Ree6 41. Rb8 Rxa5 42. Rh8 e4 43. Kf4 Rxf5+ 44. gxf5 Re8 45. Rxe8 Kg7 46. Rxe4 1-0
2023.10.01 60th World Juniors 2023
794604 Haring, Filip (2441) Koellner, Ruben Gideon (2485) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O Nb6 7. Bd3 Nfd7 8. a4 a5 9. Re1 O-O 10. h3 Bf6 11. Be3 exd4 12. Bxd4 Bxd4 13. Nxd4 Nc5 14. Qf3 Nxd3 15. Qxd3 Re8 16. Rad1 Bd7 17. b3 Qg5 18. Re3 g6 19. Nf3 Qc5 20. Ne2 Re7 21. Qd2 Bc6 22. Ng3 Rae8 23. Rde1 Nd7 24. Nd4 Nf6 25. f3 Qg5 26. Nf1 Bd7 27. c4 Nh5 28. g4 Nf4 29. Qh2 h5 30. Ne2 Nxe2+ 31. R1xe2 hxg4 32. hxg4 Kg7 33. Qg3 Rh8 34. Nh2 Qc5 35. Kg2 f6 36. Rd3 Bc6 37. Nf1 Qg5 38. Kg1 Qc1 39. Rh2 Ree8 40. Rdd2 Qb1 41. g5 f5 42. Qf2 Rxh2 43. Qd4+ Re5 44. Rxh2 f4 45. Qc3 Kg8 46. Kf2 Qa2+ 47. Nd2 Qa3 48. Qd4 b6 49. Ke2 Be8 50. Qg1 Qc5 51. Qh1 Kf8 52. Rh7 Bf7 53. Qh6+ Ke8 54. Qg7 Re7 55. Rh8+ Kd7 56. Qf6 Qe5 57. Rf8 Be8 58. Qxf4 Rh7 59. Qxe5 dxe5 60. f4 Ke7 61. Rf6 Rh2+ 62. Ke3 exf4+ 63. Rxf4 Rg2 64. Nf3 Rc2 65. Kd3 Rf2 66. Rf6 Rg2 67. Ke3 Rc2 68. Ne5 Rc3+ 69. Kd4 Rxb3 70. Nxg6+ Kd8 71. Nf4 Rg3 72. g6 Bxa4 73. Ke5 Be8 74. g7 Ke7 75. Ng6+ Bxg6 76. g8=Q Rg5+ 77. Kf4 Kxf6 78. Qd8+ 1-0
2023.09.30 60th World Juniors 2023
794567 Koellner, Ruben Gideon (2485) Koelle, Tobias (2458) 1/2-1/2
1. Nf3 d5 2. g3 g6 3. d4 Bg7 4. Bg2 Nf6 5. O-O c6 6. c4 dxc4 7. a4 Ne4 8. Qc2 Nd6 9. Nbd2 O-O 10. Nxc4 Bf5 11. Qc3 Nxc4 12. Qxc4 Be4 13. Qb4 Qd7 14. Ne5 Bxe5 15. dxe5 Bxg2 16. Kxg2 Na6 17. Qc4 Qe6 18. Qxe6 fxe6 19. Be3 Rfd8 20. h4 h5 21. Rfd1 c5 22. a5 Kf7 23. Rdc1 Rd5 24. f4 b5 25. axb6 axb6 26. Ra3 Rdd8 27. Rca1 Nc7 28. Ra7 Rxa7 29. Rxa7 Nd5 30. Bd2 Nf6 31. Bc3 Ne4 32. Kf3 1/2-1/2
2023.09.29 60th World Juniors 2023
794536 Fecker, Noah (2396) Koellner, Ruben Gideon (2485) 0-1
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5 5. c3 Nge7 6. O-O Ng6 7. d4 Ba7 8. Bg5 f6 9. Be3 O-O 10. Nbd2 Kh8 11. Re1 d6 12. h3 Nce7 13. Bb3 h6 14. Nf1 f5 15. dxe5 fxe4 16. exd6 exf3 17. dxe7 Qxe7 18. Ng3 Qh4 19. Bxa7 Rxa7 20. Bc2 Qg5 21. Qd3 Bf5 22. Qd4 Bxc2 23. Qxa7 Nf4 24. Qe3 Qh4 25. Qe7 Rf6 26. Qd7 fxg2 27. Re8+ Kh7 28. Kh2 Bf5 0-1
2023.09.28 60th World Juniors 2023
794495 Koellner, Ruben Gideon (2485) Dushyant, Sharma (2339) 0-1
1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. Nf3 Nc6 5. Nbd2 Bg4 6. c3 e6 7. Qb3 Qc8 8. Nh4 Bh5 9. h3 cxd4 10. exd4 Qd7 11. Bd3 Bd6 12. Bxd6 Qxd6 13. O-O O-O 14. Rfe1 g5 15. Nhf3 g4 16. hxg4 Nxg4 17. Be2 Kh8 18. Ne5 Ngxe5 19. Bxh5 Nd3 20. Re3 Nf4 21. Bf3 Rg8 22. g3 Ne7 23. Kf1 Nh3 24. Bg2 Nf5 25. Re5 Nxg3+ 26. fxg3 Rxg3 27. Bxh3 Rxh3 28. Kg2 Rh6 29. Nf3 f6 30. Re2 Rg8+ 31. Kf2 Rh3 32. Rg1 Rxf3+ 33. Kxf3 Rxg1 34. Rg2 Rxg2 35. Kxg2 Qe7 36. Qb5 Kg7 37. b3 Qf7 38. Kf2 Qc7 39. Ke2 a6 40. Qe8 Qxc3 41. Qe7+ Kg6 42. Qe8+ Kg5 43. Qxe6 Qc2+ 44. Ke3 Qe4+ 45. Qxe4 dxe4 46. Kxe4 Kg6 47. Kd5 Kf7 48. Kd6 h5 49. d5 h4 50. Kc7 h3 51. d6 h2 52. d7 h1=Q 53. d8=Q Qc6+ 54. Kb8 Qe8 55. Qxe8+ Kxe8 56. Kxb7 f5 57. b4 f4 58. Kxa6 f3 59. b5 f2 60. a4 f1=Q 61. a5 Qc4 62. Kb6 Kd7 63. Ka6 Kc8 64. Kb6 Qc7+ 65. Ka6 Qb7# 0-1
2023.09.27 60th World Juniors 2023
794452 Dudin, Gleb (2537) Koellner, Ruben Gideon (2485) 1-0
1. Nf3 d5 2. g3 Nd7 3. d4 Nb6 4. Nc3 Bf5 5. Nh4 Bg4 6. f3 Bc8 7. e4 e6 8. Be2 Be7 9. Be3 Nf6 10. a4 O-O 11. a5 Nbd7 12. e5 Ne8 13. Bf2 c5 14. f4 cxd4 15. Qxd4 Bc5 16. Qd2 Bxf2+ 17. Kxf2 f6 18. exf6 Nexf6 19. Kg2 Nb8 20. Nf3 Nc6 21. Nb5 Ne4 22. Qe3 Qf6 23. c4 Rb8 24. Nc3 Nd6 25. cxd5 exd5 26. Nxd5 Qh6 27. Rhe1 Be6 28. Rad1 Rbe8 29. Qa3 Bf5 30. Nc7 Rd8 31. Ng5 Qg6 32. Bf3 Rf6 33. Qb3+ Kh8 34. Rxd6 Rfxd6 35. Nf7+ 1-0
2023.09.26 60th World Juniors 2023
794418 Koellner, Ruben Gideon (2485) Makarian, Rudik (2548) 1-0
1. d4 d5 2. Nf3 Nf6 3. Bf4 Bf5 4. e3 e6 5. Bd3 Nbd7 6. Bxf5 exf5 7. Qd3 g6 8. O-O c6 9. c4 dxc4 10. Qxc4 Nd5 11. Nc3 Nxf4 12. exf4 Be7 13. d5 Nb6 14. Qb3 O-O 15. dxc6 bxc6 16. Ne5 Bf6 17. Nxc6 Qc7 18. Ne5 Bxe5 19. Nb5 Qc4 20. fxe5 a6 21. Nd6 Qxb3 22. axb3 Nd7 23. f4 Nc5 24. Rf3 Rab8 25. Ra3 Rb4 26. Rc3 Ne6 27. Rc4 Rxc4 28. bxc4 Rb8 29. Rxa6 Rxb2 30. g3 Nd4 31. Kf1 g5 32. c5 Rc2 33. fxg5 Kg7 34. Ne8+ Kf8 35. Nf6 Ke7 36. Ra8 1-0
2023.09.24 60th World Juniors 2023
794383 Kacharava, Nikolozi (2528) Koellner, Ruben Gideon (2485) 1/2-1/2
1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Nd5 7. cxd4 Bb4+ 8. Nbd2 O-O 9. O-O a6 10. Bc4 Nb6 11. Bd3 d6 12. Nb3 dxe5 13. Nxe5 Nxe5 14. dxe5 a5 15. Qc2 h6 16. Rd1 Qe7 17. a3 a4 18. Nd2 Ba5 19. b4 axb3 20. Nxb3 Bg4 21. f3 Be6 22. f4 Bxb3 23. Qxb3 Qc5+ 24. Kh1 Qc3 25. Rb1 Rfd8 26. Qxc3 Bxc3 27. g3 Na4 28. Bc2 Rxd1+ 29. Bxd1 b6 30. Bc2 Nc5 31. Be3 Ne6 32. a4 Bd4 33. Bd2 Nc5 34. a5 bxa5 35. Bxa5 Ne6 36. Be1 g5 37. Be4 Ra1 38. Rxa1 Bxa1 39. Bd2 gxf4 40. gxf4 c5 41. Bd5 Nd4 42. Kg2 Kf8 43. Kf2 Nb5 44. Kf3 Bb2 45. Be3 Bd4 46. Bc1 Nc3 47. Bc4 Ke7 48. Kg4 Nd1 49. Kf3 Nc3 50. Kg4 Nd1 51. Kf3 1/2-1/2
2023.09.23 60th World Juniors 2023
801188 Koellner, Ruben Gideon (2485) Nesterov, Arseniy (2575) 1/2-1/2
1. d4 Nf6 2. Nf3 c6 3. c3 d5 4. Bf4 Bf5 5. Nh4 Be4 6. Nd2 e6 7. f3 Bg6 8. Qb3 b6 9. g3 Be7 10. Nxg6 hxg6 11. Bg2 c5 12. Qa4+ Qd7 13. Qxd7+ Kxd7 14. e4 cxd4 15. cxd4 Nc6 16. O-O-O Nxd4 17. Be5 Nc6 18. Bxf6 Bxf6 19. exd5 exd5 20. f4 Ne7 21. Nf3 Nf5 22. Rxd5+ Kc7 23. Kb1 Rae8 24. Rc1+ Kb8 25. Rd2 Rd8 26. Rxd8+ Rxd8 27. Bf1 Nd4 28. Nxd4 Bxd4 29. Ba6 Be3 30. Re1 Bc5 31. Rc1 Be3 32. Re1 Bc5 33. a3 Kc7 34. b4 Bd6 35. Bb5 a5 36. Re4 axb4 37. axb4 f6 38. Kc2 g5 39. fxg5 fxg5 40. Rc4+ Kb8 41. Rg4 Rh8 1/2-1/2
2023.09.22 60th World Juniors 2023
801133 Melian, Juan Sebastian (2295) Koellner, Ruben Gideon (2485) 0-1
1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Nf3 d5 5. Bb3 a5 6. a4 Bb4+ 7. c3 Bd6 8. exd5 cxd5 9. Bg5 Be6 10. Na3 Nc6 11. Nb5 Bb8 12. O-O h6 13. Bh4 O-O 14. Qd2 Qe7 15. Rfe1 Rd8 16. h3 Ra6 17. Re2 Rb6 18. Rae1 Re8 19. Ba2 Kh8 20. Bb1 Qf8 21. Bg3 Nd7 22. d4 e4 23. Bxb8 Rxb8 24. Nh2 f5 25. c4 Bg8 26. c5 Ra6 27. f3 b6 28. cxb6 Raxb6 29. b3 Qb4 30. Qd1 Nf6 31. Nf1 Rxb5 32. axb5 Nxd4 33. Rb2 Nxb5 34. Ne3 Qc5 35. Kh1 d4 36. Nf1 Nc3 37. Qc2 Qb4 38. Ng3 Bh7 39. fxe4 fxe4 40. Qc1 Nxb1 41. Rxb1 e3 42. Ra1 Re8 43. Nf1 e2 44. Nd2 d3 45. Ra4 Qb6 46. Qc3 Qf2 47. Nf3 Be4 48. Rxe4 Nxe4 49. Qxd3 Qxe1+ 0-1
2023.09.21 60th World Juniors 2023
801100 Koellner, Ruben Gideon (2485) Diaz Gonzalez Jardon, Emmanuel (1919) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Ne5 Nfd7 5. Qf3 e6 6. Nxf7 Kxf7 7. g4 Qf6 8. gxf5 Qxf5 9. Qxf5+ exf5 10. c4 c6 11. Nc3 Nf6 12. Bd2 Nbd7 13. cxd5 cxd5 14. f3 a6 15. Bd3 g6 16. e4 dxe4 17. fxe4 fxe4 18. Nxe4 Re8 19. O-O Kg7 20. Rae1 Nxe4 21. Bxe4 Nf6 22. Bg2 Bd6 23. Bc3 Rxe1 24. Rxe1 Re8 25. Bxb7 Rxe1+ 26. Bxe1 Ng4 27. h3 Nh2 28. Kg2 g5 29. Bxa6 g4 30. Be2 h5 31. Bg3 1-0
2023.09.18 AI Cup Play-In 2023
815113 Chirila, I (2530) Koellner, Ruben Gideon (2485) 1/2-1/2
1. d4 d6 2. Nf3 Nf6 3. g3 Nbd7 4. d5 c6 5. Nc3 cxd5 6. Nxd5 Qa5+ 7. Nc3 Ne4 8. Bg2 Nxc3 9. bxc3 g6 10. Qd4 Ne5 11. Nxe5 Qxe5 12. Qxe5 dxe5 13. Rb1 Rb8 14. Bc6+ Kd8 15. Be3 b6 16. O-O Kc7 17. Bg2 f5 18. c4 e6 19. a4 Bc5 20. Bg5 Rf8 21. Rfd1 Bd7 22. Bh6 Rf7 23. Ra1 a5 24. h4 Bc6 25. Bxc6 Kxc6 26. Kg2 Rd7 27. Rxd7 Kxd7 28. Rd1+ Kc7 29. h5 Rd8 30. Rxd8 Kxd8 31. Bg7 e4 32. e3 Kd7 33. Kh3 Be7 34. Bd4 Kc6 35. g4 gxh5 36. gxh5 Bc5 37. Kh4 Be7+ 38. Kg3 Bd6+ 39. Kh4 Be7+ 40. Kh3 Bc5 41. Be5 Bd6 42. Bd4 e5 43. Bb2 Kc5 44. Ba3+ Kc6 45. Bb2 Kc5 46. Ba3+ Kc6 47. Bb2 1/2-1/2
2023.09.18 AI Cup Play-In 2023
815145 Iturrizaga Bonelli, Eduardo (2615) Koellner, Ruben Gideon (2485) 1-0
1. c4 e6 2. Nf3 d5 3. e3 Nf6 4. Nc3 c5 5. cxd5 exd5 6. d4 Nc6 7. Be2 Be6 8. O-O a6 9. b3 Be7 10. dxc5 Bxc5 11. Bb2 O-O 12. Rc1 Ba7 13. Na4 Rc8 14. Nc5 Qe7 15. Nxe6 fxe6 16. a3 Ne4 17. Bd3 Ng5 18. Nxg5 Qxg5 19. Kh1 Bb8 20. b4 Qh6 21. f4 d4 22. Rf3 g6 23. Rh3 Qg7 24. Be4 e5 25. f5 Ne7 26. Rxc8 Rxc8 27. exd4 exd4 28. Qb3+ Kh8 29. fxg6 Nxg6 30. Bxg6 Rf8 31. Rxh7+ Qxh7 32. Bxd4+ Qg7 33. Qh3+ Kg8 34. Qe6+ Kh8 35. Bxg7+ Kxg7 36. Qe7+ 1-0
2023.09.18 AI Cup Play-In 2023
815222 Koellner, Ruben Gideon (2485) Vasquez Schroeder, R (2478) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 d5 5. c3 Nbd7 6. Ne5 Qc7 7. f4 Be7 8. Bd3 b6 9. O-O Bb7 10. Qf3 O-O 11. g4 Nxe5 12. fxe5 Nd7 13. Qh3 g6 14. Nf3 Rae8 15. g5 Kh8 16. Qh6 Qd8 17. Bd2 Nb8 18. Rf2 Ba6 19. Bxa6 Nxa6 20. Rg2 Rg8 21. Rf1 Ref8 22. h3 Nc7 23. Nh2 Ne8 24. e4 dxe4 25. Ng4 Ng7 26. Nf6 Bxf6 27. gxf6 Nf5 28. Rxf5 exf5 29. Be3 g5 30. Bxg5 Rg6 31. Qg7+ 1-0
2023.09.18 AI Cup Play-In 2023
815326 Koellner, Ruben Gideon (2485) Pranav, V (2579) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 Bd7 11. a3 Rc8 12. c4 Bb8 13. Rc1 Qe7 14. Qe2 Rfd8 15. Rfd1 Be8 16. Bb1 a6 17. h3 h6 18. cxd5 exd5 19. Nb3 Ne5 20. Nxe5 Bxe5 21. Bxe5 Qxe5 22. Nd4 Bd7 23. Qb2 Rb8 24. Qc3 Rbc8 25. Qb2 Rb8 26. Rd2 Rbc8 27. Rdc2 Rxc2 28. Qxc2 Rc8 29. Qb2 Re8 30. Qc3 Rc8 31. Qxc8+ Bxc8 32. Rxc8+ Ne8 33. Bf5 Qe7 34. b5 axb5 35. Bd3 g6 36. Bxb5 Qxa3 37. Rxe8+ Kg7 38. g3 h5 39. h4 Qd6 40. Kg2 Qc7 41. Ra8 Qe7 42. Be2 Qc5 43. Rd8 1-0
2023.09.18 AI Cup Play-In 2023
815389 Vokhidov, Shamsiddin (2578) Koellner, Ruben Gideon (2485) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. O-O h6 8. Be3 Qc7 9. Nh4 g6 10. Ba2 Kf8 11. Qe2 Kg7 12. f4 Nf8 13. f5 g5 14. dxe5 dxe5 15. Qc4 Bd6 16. Rad1 Ng4 17. Rxd6 Nxe3 18. Qc5 Qb6 19. Qxe5+ Kg8 20. Bxf7+ Kxf7 21. Rf6+ Kg8 22. Rxf8+ Kxf8 23. Ng6+ Kf7 24. Qe7+ Kg8 25. Qf8+ Kh7 26. Qxh8# 1-0
2023.09.18 AI Cup Play-In 2023
815529 Koellner, Ruben Gideon (2485) Le Tuan Minh (2559) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 c6 4. Nbd2 Bf5 5. Ne5 h6 6. Bd3 Bxd3 7. cxd3 e6 8. O-O Bd6 9. f4 O-O 10. Ndf3 Nbd7 11. Bd2 c5 12. Bc3 Rc8 13. Rc1 c4 14. dxc4 dxc4 15. Qa4 a6 16. Nxc4 b5 17. Qxa6 Rxc4 18. Qxd6 Qa8 19. Ne5 Nxe5 20. fxe5 Nd5 21. Bd2 Qxa2 22. e4 Rxd4 23. Bxh6 Rxe4 24. Bg5 Rc4 25. Rxc4 Qxc4 26. Rc1 Qd4+ 27. Kh1 Ra8 28. Qc6 Rb8 29. Qd6 Qb6 30. Rc6 Qa7 31. h3 Ra8 32. Kh2 Kh7 33. Qc5 Qxc5 34. Rxc5 b4 35. Rc4 Ra2 36. Bc1 Kg6 37. g4 b3 38. Kg3 Ra5 39. h4 Nb6 40. h5+ Kh7 41. Rb4 Nd7 42. Bf4 Nc5 43. Be3 Nd3 44. Rxb3 Nxe5 45. Bd4 Nc6 46. Bc3 Ra7 47. Rb6 Rc7 48. g5 Ne7 49. Rb8 Nd5 50. Be5 Rd7 51. h6 f6 52. Bf4 e5 53. Bc1 Rc7 54. hxg7 Rxg7 55. Kh4 Kg6 56. gxf6 Kxf6 57. Rb5 Ke6 58. Rc5 Ne7 59. Rc2 Kd5 60. b4 Nf5+ 61. Kh3 Nd4 62. Rb2 Ke4 63. b5 Kf3 64. Kh2 Rh7+ 65. Kg1 Ne2+ 66. Rxe2 Kxe2 67. Ba3 Rb7 68. Bd6 Rxb5 0-1
2023.09.18 AI Cup Play-In 2023
815552 Koellner, Ruben Gideon (2485) Bok, B (2621) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 b6 5. Bd3 Bb7 6. Ne5 c5 7. c3 Bd6 8. f4 O-O 9. Qf3 Nc6 10. O-O Nd7 11. Qh3 f5 12. g4 Bxe5 13. fxe5 Qg5 14. Rf4 Ndxe5 15. dxe5 Nxe5 16. Nf3 Nxf3+ 17. Qxf3 h5 18. h4 Qxh4 19. gxf5 Qg5+ 20. Qg2 Qxg2+ 21. Kxg2 e5 22. Rh4 e4 23. Be2 Rxf5 24. Rxh5 Rf6 25. Bd2 Raf8 26. Rf1 Rg6+ 27. Kh2 Rxf1 28. Bxf1 Kf7 29. Be1 Ke6 30. Bh3+ Kd6 31. Bg3+ Kc6 32. Be5 Ba6 33. Bf5 Rh6 34. Rxh6+ gxh6 35. Kg3 Bd3 36. Be6 Bb1 37. a3 Ba2 38. Kf4 Kb5 39. Bg7 Bc4 40. Bd7+ Ka5 41. b4+ Ka6 42. Bxh6 Bd3 43. Bf8 cxb4 44. cxb4 Kb7 45. Bd6 a5 46. Ke5 axb4 47. axb4 Bc4 48. Kd4 b5 49. Kc5 1-0
2023.09.18 AI Cup Play-In 2023
815607 Kevlishvili, Robby (2517) Koellner, Ruben Gideon (2485) 1-0
1. Nf3 d5 2. g3 Nd7 3. Bg2 e5 4. d3 Ngf6 5. c4 c6 6. cxd5 cxd5 7. O-O Bd6 8. e4 d4 9. Nh4 O-O 10. Nf5 Nc5 11. Na3 Rb8 12. Nxd6 Qxd6 13. Nc4 Qe7 14. Nxe5 b6 15. Nc6 1-0
2023.09.18 AI Cup Play-In 2023
815677 Koellner, Ruben Gideon (2485) Tregubov, P (2567) 1-0
1. d4 Nf6 2. Nf3 c5 3. e3 g6 4. Nbd2 Bg7 5. dxc5 a5 6. a4 Na6 7. Bxa6 Rxa6 8. O-O O-O 9. Nb3 Qc7 10. Nfd4 Ne4 11. Nb5 Qe5 12. Bd2 Nxd2 13. Qxd2 Qxb2 14. N5d4 1-0
2023.09.12 Titled Tue 12th Sep Early
810643 Shevchuk, Olexandr (2093) Koellner, Ruben Gideon (2485) 0-1
1. d4 d6 2. c4 e5 3. d5 f5 4. Nc3 Nf6 5. e4 Nxe4 6. Nxe4 fxe4 7. Ne2 Bf5 8. Ng3 Bg6 9. h4 h6 10. Qg4 Bh7 11. Nxe4 Nd7 12. Bd3 Nf6 13. Qe6+ Qe7 14. Nxf6+ gxf6 15. Qxe7+ Bxe7 16. Bxh7 Rxh7 17. g4 h5 18. f3 Kf7 19. Kf2 Rg8 20. Kg3 hxg4 21. fxg4 f5 22. g5 f4+ 23. Bxf4 exf4+ 24. Kxf4 Rgh8 25. Kg4 Kg6 26. Rae1 Bxg5 27. Re6+ Bf6 28. h5+ Rxh5 29. Rxh5 Rxh5 30. Rxf6+ Kxf6 31. Kxh5 Ke5 32. Kg6 Kd4 33. b3 c6 34. Kf5 cxd5 35. Ke6 dxc4 36. bxc4 Kxc4 37. Kxd6 a5 38. Kc7 b5 39. Kb6 a4 40. Ka5 Kc5 41. a3 Kc4 42. Ka6 b4 43. Ka5 bxa3 44. Kxa4 a2 45. Ka5 a1=Q+ 46. Kb6 Qb2+ 47. Kc6 Qd4 48. Kb7 Qd5+ 49. Kc8 Qf7 50. Kb8 Kc5 51. Kc8 Kb6 52. Kd8 Kc6 53. Kc8 Qf8# 0-1
2023.09.12 Titled Tue 12th Sep Early
810810 Martinez Alcantara, Jose Eduardo (2611) Koellner, Ruben Gideon (2485) 1-0
1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. c3 Nbd7 5. Nf3 d5 6. Nxe5 Nxe5 7. dxe5 Nxe4 8. O-O Be6 9. Nd2 Nxd2 10. Bxd2 Qd7 11. b4 Be7 12. Be3 a5 13. b5 a4 14. Qc2 a3 15. f4 g6 16. f5 gxf5 17. Bxf5 Qxb5 18. Rab1 Qc6 19. Bd3 Ra5 20. Kh1 Rg8 21. Bd4 Bc5 22. Qf2 b6 23. h3 h5 24. Qe3 h4 25. Rf3 Bxd4 26. cxd4 Kd8 27. Qh6 Rg3 28. Qxh4+ 1-0
2023.09.12 Titled Tue 12th Sep Early
811095 Koellner, Ruben Gideon (2485) Herman, Daniel (1927) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 Bg4 7. Be2 Nbd7 8. a4 Re8 9. Bb2 c6 10. h3 Bxf3 11. Nxf3 Ne4 12. O-O e5 13. dxe5 Nxe5 14. Nxe5 Bxe5 15. Bxe5 Rxe5 16. Qd4 Qe7 17. b5 c5 18. Qb2 d4 19. exd4 cxd4 20. Qxd4 Nc5 21. Ra2 Rd8 22. Qg4 Re4 23. Qf3 Qe5 24. a5 Rf4 25. Qg3 Ne4 26. Qe3 Re8 27. Bf3 Nc3 28. Qxe5 Rxe5 29. Rc2 Rxc4 30. Rfc1 Rec5 31. Kh2 b6 32. a6 Kg7 33. Be2 Nxe2 34. Rxc4 Rxb5 35. R1c2 1-0
2023.09.12 Titled Tue 12th Sep Early
811518 Martins, Bruno Andre Leite (2325) Koellner, Ruben Gideon (2485) 1/2-1/2
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nge2 Nbd7 5. g3 c6 6. a4 Be7 7. Bg2 Qc7 8. O-O Nf8 9. h3 h6 10. f4 Ne6 11. Be3 O-O 12. Qd2 a5 13. Rad1 Rd8 14. Qe1 b6 15. Qf2 Rb8 16. Rd2 Ba6 17. Rfd1 Nf8 18. fxe5 dxe5 19. d5 cxd5 20. exd5 Bd6 21. g4 N6d7 22. Ng3 Bc5 23. Nge4 Bxe3 24. Qxe3 Nc5 25. Nxc5 Qxc5 26. Qxc5 bxc5 27. b3 Ng6 28. Be4 Nf4 29. Kh2 c4 30. bxc4 Bxc4 31. Rb1 Rxb1 32. Nxb1 Kf8 33. Na3 Rc8 34. d6 Be6 35. c4 Ke8 36. Bb7 Rc5 37. Ba6 Kd8 38. Bb5 e4 39. Kg3 e3 40. Rd1 g5 41. Kf3 e2 42. Re1 Re5 43. Nc2 Rc5 44. Nd4 Bxc4 45. Nc6+ Kc8 46. d7+ Kxd7 47. Ne5+ Ke6 48. Nxc4 Kd5 49. Ne3+ Kd4 50. Nf5+ Kc3 51. Ng3 Kd2 52. Rxe2+ Nxe2 53. Nxe2 f5 54. gxf5 Rxf5+ 55. Kg4 Re5 56. Kh5 Re3 57. Kg4 Rxe2 58. Bxe2 Kxe2 59. Kh5 Kf3 60. Kxh6 g4 61. hxg4 Kxg4 62. Kg6 Kf4 63. Kh5 Ke4 64. Kg4 Kd3 65. Kf3 Kc3 66. Ke2 Kb3 67. Kd1 Kxa4 68. Kc1 Ka3 69. Kb1 a4 70. Ka1 Kb3 71. Kb1 a3 72. Ka1 a2 1/2-1/2
2023.09.12 Titled Tue 12th Sep Early
811616 Koellner, Ruben Gideon (2485) Zenin, D (2163) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O Nc6 7. c3 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Qe2 a5 11. a4 Re8 12. Nf3 h6 13. Rd1 Qe7 14. b3 Nh5 15. g3 Bh3 16. Ba3 Qf6 17. Rd3 Rad8 18. Rad1 Rxd3 19. Rxd3 Bf8 20. Bxf8 Kxf8 21. Qe3 Kg7 22. Qc5 Bg4 23. Kg2 Rd8 24. Re3 Qd6 25. Qxa5 Bxf3+ 26. Rxf3 Nf6 27. Qb4 Qxb4 28. cxb4 Rd4 29. a5 Rxe4 30. b5 Re1 31. a6 bxa6 32. bxa6 Ra1 33. Rd3 Ne4 34. Rd7 Nd6 35. Bf1 Ra2 36. Rxc7 Ne4 37. a7 Rxf2+ 38. Kg1 Ra2 39. Bc4 Ng5 40. Bd5 e4 41. a8=Q Nf3+ 42. Kf1 Nxh2+ 43. Ke1 Nf3+ 44. Kd1 1-0
2023.09.12 Titled Tue 12th Sep Early
811996 Zakhartsov, Vl (2526) Koellner, Ruben Gideon (2485) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. Ng5 O-O 7. Bxf7+ Rxf7 8. Ne6 Qe8 9. Nxc7 Qd8 10. Nxa8 b5 11. a3 Bb7 12. f3 Bxa8 13. Be3 a6 14. O-O Bb7 15. Qd2 Qc7 16. d5 Nb6 17. b3 Bc8 18. a4 b4 19. Ne2 a5 20. c3 bxc3 21. Qxc3 Qb8 22. Qxa5 Bd8 23. Qd2 Ba6 24. Rfc1 Rb7 25. b4 Nc4 26. Rxc4 Bxc4 27. b5 Bxe2 28. Qxe2 Ba5 29. Rc1 Nd7 30. Rc6 Nb6 31. Qc2 Kf7 32. Kf1 Ke7 33. f4 exf4 34. Bxf4 Qf8 35. Qf2 Ke8 36. Rxd6 Rf7 37. Re6+ Kd7 38. g3 g5 39. Qc2 gxf4 40. Qc6+ Kd8 41. Rd6+ Qxd6 42. Qxd6+ Nd7 43. gxf4 Bc7 44. Qc6 Rxf4+ 45. Kg2 Rg4+ 46. Kf3 Ne5+ 47. Ke3 Nxc6 48. dxc6 Rh4 49. Kd4 Bb6+ 50. Kd5 Rxh2 51. e5 Rd2+ 52. Ke6 h5 53. Kf7 Rf2+ 54. Kg6 h4 55. e6 Re2 56. a5 Bxa5 57. Kf7 Rf2+ 58. Kg6 h3 59. c7+ Bxc7 60. e7+ Kxe7 61. b6 Bxb6 0-1
2023.09.12 Titled Tue 12th Sep Early
812089 Koellner, Ruben Gideon (2485) Bharath, Subramaniyam H (2496) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nc6 6. Bd3 Be7 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 a6 11. a3 b5 12. a4 Rb8 13. axb5 axb5 14. Qe2 Qb6 15. e4 Nh5 16. g3 g6 17. e5 Be7 18. Nb3 f6 19. exf6 Bxf6 20. Nbd4 Ng7 21. Nxc6 Qxc6 22. Nd4 Qb6 23. Nxb5 e5 24. Ra5 Bh3 25. Rd1 Bg5 26. Bc1 Bxc1 27. Rxc1 Ne6 28. Qe3 Ng5 29. Qxb6 Rxb6 30. Kh1 Rxf2 31. Rc2 Rxc2 32. Bxc2 Rf6 33. Ra1 Rf2 34. Bb3 Bg2+ 35. Kg1 Nh3# 0-1
2023.09.12 Titled Tue 12th Sep Early
812451 Harsh, Suresh (2324) Koellner, Ruben Gideon (2485) 0-1
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. g3 Bg7 5. Nc3 Bf5 6. Bg2 Ne4 7. Qb3 Nxc3 8. Qxc3 Be4 9. O-O O-O 10. Be3 c5 11. Qd2 b6 12. d5 Nd7 13. Bh6 Nf6 14. Bxg7 Kxg7 15. a4 a6 16. b4 a5 17. b5 Qd7 18. Qc3 Kg8 19. Nd2 Bxg2 20. Kxg2 Qf5 21. Rae1 Ne4 22. Nxe4 Qxe4+ 23. f3 Qe5 24. Qxe5 dxe5 25. e4 Rad8 26. f4 f6 27. Re2 Kg7 28. Ref2 Kg8 29. Rh1 Rf7 30. h4 h5 31. f5 Kh7 32. fxg6+ Kxg6 33. Kh3 Kh6 34. Rg1 Rg7 35. g4 hxg4+ 36. Rxg4 Rxg4 37. Kxg4 Kg6 38. h5+ Kf7 39. Rg2 Rg8+ 40. Kh3 Rh8 41. Kh4 Rh6 42. Rg3 Rh8 43. Rg6 Rh7 44. Rg2 Rh8 45. Rg1 Rh7 46. Rg3 Rh8 47. Kg4 Rg8+ 48. Kf3 Rh8 49. Rh3 Rg8 50. Rh1 Rh8 51. Kg4 Rg8+ 52. Kf3 Rh8 53. Rh2 Rg8 54. Rg2 Rh8 55. Kg4 Rg8+ 56. Kh3 Rh8 57. Rd2 Rxh5+ 58. Kg4 Rh1 59. d6 exd6 60. Rxd6 Rf1 61. Rxb6 Rf4+ 62. Kg3 Rxe4 63. Ra6 Rxc4 64. Rxa5 Rb4 65. Ra6 c4 66. Kf3 c3 67. Ke2 e4 68. b6 f5 69. a5 f4 70. Ra7+ Ke6 71. b7 Rb2+ 72. Kd1 e3 73. Ra6+ Kd5 74. Rb6 Rd2+ 75. Ke1 c2 76. Rb5+ Kc4 77. Rb4+ Kd5 78. Rb5+ Kc6 79. Rb6+ Kd7 0-1
2023.09.12 Titled Tue 12th Sep Early
812601 Koellner, Ruben Gideon (2485) Timofeev, Arty (2576) 1-0
1. d4 e6 2. Nf3 Nf6 3. Nbd2 d5 4. e3 c5 5. c3 Nc6 6. Bd3 Be7 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 a6 11. a3 b5 12. a4 Rb8 13. axb5 axb5 14. Qe2 Qb6 15. e4 Be7 16. e5 Nd7 17. Nb3 f6 18. exf6 Nxf6 19. Nbd4 Nxd4 20. Nxd4 Bd7 21. Ra5 Ne4 22. Bxe4 dxe4 23. Qxe4 Bf6 24. Rfa1 Qd6 25. Ra6 Qd5 26. Qxd5 exd5 27. Rd6 Rfd8 28. Rxd5 Be8 29. Rxd8 Rxd8 30. h3 Rc8 31. Rc1 Rc4 32. Rd1 Rc8 33. Rd3 Ra8 34. Rd1 Ra2 35. Bc1 Ra1 36. Re1 Bd7 37. Bd2 Rxe1+ 38. Bxe1 Bxd4 39. cxd4 Bc6 40. f3 Kf7 41. Bg3 Ke6 42. Kf2 Kd5 43. Ke3 g6 44. Bh4 h5 45. Be7 Kc4 46. Bc5 Kd5 47. Kf4 Ke6 48. Kg5 Kf7 49. Bd6 Bd5 50. Bc5 Bc6 51. Kf4 Ke6 52. g4 Bd5 53. h4 Bc6 54. Kg3 Kf7 55. f4 Bd7 56. f5 hxg4 57. fxg6+ Kxg6 58. Kf4 Be6 59. Ke5 Bc8 60. d5 g3 61. Kd6 Bb7 62. Ke6 Bc8+ 63. Ke7 g2 64. d6 Kh5 65. d7 Bxd7 66. Kxd7 1-0
2023.09.12 Titled Tue 12th Sep Early
812803 Demchenko, A (2608) Koellner, Ruben Gideon (2485) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. f3 Bd6 9. Nh3 Ke7 10. Nd1 Nbd7 11. Nhf2 a6 12. Ne3 b5 13. Bd2 Nb6 14. b3 a5 15. Ke2 a4 16. Nd3 Nfd7 17. Rhc1 axb3 18. axb3 Rxa1 19. Rxa1 Ra8 20. Rxa8 Nxa8 21. c4 bxc4 22. Nxc4 Nab6 23. Na5 Nc5 24. Nc6+ Kf6 25. Nxc5 Bxc5 26. Bc3 Bd6 27. f4 Nd7 28. h4 Kg6 29. fxe5 Bc5 30. b4 Bb6 31. Kf3 h5 32. g4 Nf8 33. Bd2 Bg1 34. Bg5 hxg4+ 35. Kxg4 Kf7 36. h5 Bf2 37. Bd8 Bb6 38. Bh4 Be3 39. b5 Bb6 40. Bg5 Bc5 41. Kf3 Bb6 42. Ke2 Bc5 43. Kd3 Bb6 44. Kc4 Bf2 45. Bd2 Bb6 46. Bb4 Ke8 47. Kd3 Nd7 48. Ke2 Bg1 49. Kf3 Bh2 50. Bc3 Bg1 51. Nb4 Bc5 52. Nc6 Bg1 53. Kg4 Bb6 54. Bd2 Nf8 55. Bg5 Kf7 56. Bh4 Bc5 57. Kf3 Bb6 58. Ke2 Bc5 59. Kd3 Bb6 60. Be7 Nd7 61. Ba3 Ke8 62. Kc4 Bg1 63. Bc1 Bb6 64. Bf4 Bf2 65. Kb4 Bb6 66. Bg3 Nc5 67. Kc4 Nxe4 68. Bf4 Nc5 69. h6 gxh6 70. Bxh6 Nd7 71. Bf4 Nf8 72. Bg5 Ng6 73. Bf6 Kd7 74. Nb8+ Kc8 75. Nc6 Kd7 76. Kd3 Nf4+ 77. Kc4 Ng6 1/2-1/2
2023.09.12 Titled Tue 12th Sep Early
812835 Koellner, Ruben Gideon (2485) Guerra Mendez, J (2500) 1-0
1. d4 d5 2. Nf3 e6 3. e3 Bd6 4. Nbd2 f5 5. Ne5 Nd7 6. Qh5+ g6 7. Nxg6 Ndf6 8. Qh3 hxg6 9. Qxh8 Kf7 10. Nf3 Qf8 11. Ne5+ Bxe5 12. dxe5 Nh5 13. Qh7+ Ng7 14. h4 Qb4+ 15. c3 Qe4 16. h5 gxh5 17. Rxh5 Qxe5 18. Rg5 Qf6 19. Rg3 e5 20. c4 f4 21. exf4 Bf5 22. Rxg7+ 1-0
2023.09.12 Titled Tue 12th Sep Late
813075 Korol, D (2287) Koellner, Ruben Gideon (2485) 0-1
1. d4 d6 2. c4 e5 3. Nc3 exd4 4. Qxd4 Nc6 5. Qd2 g6 6. Nf3 Bg7 7. e3 Nf6 8. Be2 O-O 9. O-O Re8 10. Nd4 Nxd4 11. exd4 Bf5 12. b3 Ne4 13. Nxe4 Rxe4 14. Bb2 Re8 15. Bf3 c6 16. Rfe1 Qh4 17. g3 Qf6 18. Bg2 h5 19. Rxe8+ Rxe8 20. Re1 Rxe1+ 21. Qxe1 Qe6 22. Qe3 Kh7 23. h4 Bh6 24. Qxe6 fxe6 25. f4 Bb1 26. d5 exd5 27. cxd5 cxd5 28. Bxd5 Bxa2 29. Kf2 Bg7 30. Bxg7 Kxg7 31. Ke3 b6 32. Kd4 Kf6 0-1
2023.09.12 Titled Tue 12th Sep Late
813402 Koellner, Ruben Gideon (2485) Vaglio, J (2174) 1-0
1. d4 c6 2. Nf3 b5 3. e4 a6 4. Nbd2 d5 5. e5 Bg4 6. h3 Bxf3 7. Nxf3 e6 8. Bd3 c5 9. c3 cxd4 10. cxd4 Bb4+ 11. Bd2 Qa5 12. O-O Bxd2 13. Nxd2 Ne7 14. Nb3 Qb6 15. Rc1 Nbc6 16. Qg4 O-O 17. Rc5 f5 18. exf6 Rxf6 19. Rfc1 Raf8 20. R5c2 Nb4 21. Rd2 Nxd3 22. Rxd3 Rxf2 23. Re1 R2f6 24. Nc5 Rg6 25. Qe2 Nf5 26. Nd7 Nxd4 27. Nxb6 Nxe2+ 28. Rxe2 Rd8 29. a4 bxa4 30. Nxa4 Rb8 31. Rde3 Rb4 32. Nc5 d4 33. Rxe6 Rxe6 34. Nxe6 d3 35. Rd2 Re4 36. Nc5 Re1+ 37. Kf2 Rb1 38. Nxd3 a5 39. Ke3 a4 40. Kd4 a3 41. bxa3 Ra1 42. Ne5 Rxa3 43. Ke4 Ra4+ 44. Rd4 Ra8 45. Rd7 Ra4+ 46. Kf5 Ra8 47. Nc6 Rf8+ 48. Ke6 Rf6+ 49. Kd5 Rf2 50. Ne5 h5 51. g4 hxg4 52. hxg4 Rg2 53. Ke6 Kh7 54. Kf5 Rf2+ 55. Kg5 Rf6 56. Re7 Ra6 57. Nd7 Rg6+ 58. Kf4 Kg8 59. Re8+ Kf7 60. Ne5+ Kxe8 61. Nxg6 Kf7 62. Kg5 Kg8 63. Ne7+ Kh7 64. Nf5 Kg8 65. Kg6 Kh8 66. Nxg7 Kg8 67. Nf5 Kh8 68. Kf6 Kg8 69. g5 Kf8 70. g6 Kg8 71. Nh6+ Kh8 72. g7+ Kh7 73. g8=Q+ Kxh6 74. Qg6# 1-0
2023.09.12 Titled Tue 12th Sep Late
813435 Paravyan, D (2599) Koellner, Ruben Gideon (2485) 1-0
1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. Nf3 Nbd7 5. O-O exd4 6. Nxd4 Be7 7. c4 O-O 8. Nc3 Ne5 9. Be2 Re8 10. f4 Nc6 11. Be3 Bf8 12. Bf3 Bd7 13. h3 Nxd4 14. Bxd4 Bc6 15. Qd3 Nd7 16. Rae1 Nc5 17. Qc2 a5 18. b3 b6 19. Nd5 Bxd5 20. cxd5 Qh4 21. Qd2 g6 22. Kh2 Bg7 23. g3 Qe7 24. e5 Qd7 25. e6 Qe7 26. f5 gxf5 27. Bh5 fxe6 28. Bxc5 bxc5 29. Rxe6 Qd7 30. Bxe8 Rxe8 31. Qe3 Rf8 32. Re7 Qb5 33. Qe6+ Kh8 34. Rxf5 Rxf5 35. Qxf5 h6 36. Qf7 Be5 37. Qf8# 1-0
2023.09.05 Titled Tue 5th Sep Early
818776 Koellner, Ruben Gideon (2485) Sabatier, Mathis (2130) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 g6 4. Nbd2 Bg7 5. b4 O-O 6. c4 c6 7. a4 a5 8. b5 c5 9. dxc5 Ne4 10. Nxe4 dxe4 11. Nd4 Nd7 12. Ba3 Qc7 13. c6 bxc6 14. Nxc6 Bc3+ 15. Ke2 Ne5 16. Nxe7+ Kh8 17. f3 exf3+ 18. gxf3 Qxc4+ 19. Kf2 Qh4+ 20. Kg1 Bb7 21. Bg2 Qg5 22. Kf2 Rfd8 23. Qxd8+ Rxd8 24. Rad1 Nd3+ 25. Rxd3 Rxd3 26. Nc6 Rd2+ 27. Ke1 Qxe3+ 28. Kf1 Qf2# 0-1
2023.09.05 Titled Tue 5th Sep Early
819012 Khromkin, A (2191) Koellner, Ruben Gideon (2485) 1-0
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Nfd2 f5 5. e3 Nf6 6. Nc3 c5 7. f3 cxd4 8. exd4 e3 9. Nb3 f4 10. Bd3 Nh5 11. Qc2 Qh4+ 12. Kd1 Nc6 13. Bxh7 Ng3 14. Bg6+ Kd8 15. Re1 Qxh2 16. Nd5 Be6 17. Nxf4 Bg8 18. Bxe3 Nb4 19. Qd2 a5 20. a3 Bxc4 21. Nxa5 Nd5 22. Nxc4 1-0
2023.09.05 Titled Tue 5th Sep Late
821364 Copeland, Samuel (2132) Koellner, Ruben Gideon (2485) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 c6 6. g4 h6 7. h4 exd4 8. Qxd4 Qb6 9. g5 hxg5 10. hxg5 Ne5 11. Qd1 Nfg4 12. Qe2 Nxf3+ 13. Qxf3 Ne5 14. Qe3 Rh2 15. Qxb6 axb6 16. Be2 b5 17. Bf4 Rh4 18. Bg3 Rh8 19. Nd1 Be6 20. a3 Bc4 21. Ne3 Bxe2 22. Kxe2 g6 23. Bxe5 dxe5 24. Ng4 Bg7 25. Rad1 Ke7 26. Rg3 Rh4 27. f3 Rah8 28. Rg2 R8h5 29. Ne3 Rh2 30. Kf2 Rxg2+ 31. Kxg2 Rxg5+ 32. Kf2 Rh5 33. Kg3 Bh6 34. Ng4 Bf4+ 35. Kg2 f5 36. exf5 gxf5 37. Nf2 Rh2+ 38. Kg1 Rh4 39. Nd3 Ke6 40. Nxf4+ Rxf4 41. Kg2 Rd4 42. Re1 Rd2+ 0-1
2023.09.05 Titled Tue 5th Sep Late
821501 Koellner, Ruben Gideon (2485) Sarana, A (2693) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 b6 5. Bd3 Bb7 6. Ne5 Nbd7 7. f4 a6 8. Qf3 c5 9. c3 Bd6 10. O-O Qe7 11. a4 h5 12. Qg3 g6 13. Qf3 h4 14. g4 hxg3 15. hxg3 O-O-O 16. Qe2 c4 17. Bc2 Rh3 18. Qg2 Rdh8 19. Ndf3 Bxe5 20. fxe5 Ng4 21. Bd2 f5 22. exf6 Ndxf6 23. Bxg6 Qg7 24. Bc2 Nxe3 25. Bxe3 Rxg3 26. Rf2 Qg4 27. Ne5 Qh3 28. Qxg3 Qh1# 0-1
2023.09.05 Titled Tue 5th Sep Late
821685 Rodriguez Fontecha, M (2289) Koellner, Ruben Gideon (2485) 0-1
1. e4 d6 2. d3 Nf6 3. Nd2 e5 4. g3 c5 5. Bg2 Nc6 6. Ngf3 Be7 7. O-O O-O 8. a4 Be6 9. Ng5 Bg4 10. f3 Bd7 11. f4 h6 12. Ngf3 Be6 13. f5 Bd7 14. Nc4 Nd4 15. c3 Nxf3+ 16. Qxf3 Bc6 17. Ne3 a6 18. a5 Rb8 19. Ng4 Nxg4 20. Qxg4 Bg5 21. h4 Bxc1 22. Raxc1 f6 23. b4 Rc8 24. Qe2 cxb4 25. cxb4 Bb5 26. Bf3 Qd7 27. g4 Rxc1 28. Rxc1 Rc8 29. Rc2 Rxc2 30. Qxc2 Qc6 31. Qxc6 bxc6 32. Be2 d5 33. Bf1 Kf8 34. Kf2 Ke7 35. Ke3 Kd6 36. Be2 d4+ 37. Kd2 c5 38. Kc2 cxb4 39. Kb3 Kc5 40. Bf1 Be8 0-1
2023.09.05 Titled Tue 5th Sep Late
821903 Koellner, Ruben Gideon (2485) Huang, Youhe (2083) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 Bg4 4. h3 Bh5 5. g4 Bg6 6. Ne5 Nbd7 7. h4 h5 8. Nxg6 fxg6 9. g5 Ne4 10. Nd2 Nd6 11. Bd3 Kf7 12. Qf3+ Kg8 13. Bxg6 c6 14. Bxh5 e5 15. Bg4 e4 16. Be6+ Nf7 17. Bxf7+ Kh7 18. g6+ Kh6 19. Qf4+ Kh5 20. Nf1 Qxh4 21. Ng3# 1-0
2023.09.05 Titled Tue 5th Sep Late
822171 Grigorov, G (2510) Koellner, Ruben Gideon (2485) 1-0
1. d4 d6 2. Nf3 Nf6 3. Bg5 Nbd7 4. Nbd2 e5 5. c3 Be7 6. e4 h6 7. Bh4 c6 8. Bd3 Qc7 9. O-O Nf8 10. Re1 Ng6 11. Bg3 O-O 12. Nc4 Nd7 13. a4 Re8 14. Qc2 Bf8 15. Rad1 Nf6 16. Ne3 Nh5 17. dxe5 dxe5 18. Bc4 Nxg3 19. hxg3 a6 20. b4 b5 21. Bb3 Be6 22. Nf5 Bxb3 23. Qxb3 Rad8 24. Nh2 Ne7 25. Ng4 h5 26. Nge3 g6 27. Nh4 Bh6 28. Nf1 Rxd1 29. Rxd1 Rd8 30. Nf3 Rxd1 31. Qxd1 Nc8 32. a5 Bg7 33. Qd3 Qd6 34. Qc2 c5 35. N1d2 Ne7 36. bxc5 Qxc5 37. Nb3 Qa3 38. Nfd2 Nc6 39. Qd3 Bf8 40. Qd5 Nxa5 41. Nxa5 Qxa5 42. Qxe5 Qa1+ 43. Kh2 b4 44. Nf3 Qxc3 45. Qd5 b3 46. Ne5 Qc7 47. Nxg6 1-0
2023.09.05 Titled Tue 5th Sep Late
822385 Koellner, Ruben Gideon (2485) Idnani, Taran (1988) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 a5 6. b5 c6 7. a4 O-O 8. c4 dxc4 9. Bxc4 cxb5 10. axb5 Nbd7 11. Ba3 Nb6 12. Be2 Bf5 13. O-O Re8 14. Rc1 Rc8 15. Ne5 Nfd5 16. Bf3 Bxe5 17. dxe5 Nc3 18. Qe1 Bd3 19. Bxb7 Rc7 20. Bc6 Bxf1 21. Nxf1 Nba4 22. Rxc3 Nxc3 23. Qxc3 Qd1 24. Qxa5 Rec8 25. Qd2 Qb3 26. Qb2 Qd1 27. h4 Rxc6 28. bxc6 Rxc6 29. Bxe7 Qd7 30. Qb8+ Rc8 31. Qd6 Qg4 32. Bf6 h5 33. Qd4 Qe2 34. Qd7 Qc4 35. e6 Qxe6 36. Qxe6 fxe6 37. Ng3 Kf7 38. Bg5 Rc1+ 39. Kh2 e5 40. f3 Ke6 41. Ne4 Re1 42. Kg3 Kf5 43. Kf2 Rc1 44. Nd6+ Ke6 45. Ne4 Rc2+ 46. Kg3 Kf5 47. Nf2 Ke6 48. f4 exf4+ 49. Bxf4 Kf5 50. Kf3 Rc3 51. Ne4 Rb3 52. Nd6+ Ke6 53. Ne4 Kf5 54. Ng3+ Ke6 55. Ne2 Ra3 56. Nd4+ Kd5 57. Bg5 Ke5 58. Ne2 Kf5 59. Bf4 Rd3 60. Nd4+ Kf6 61. Ke4 Rd2 62. g3 Ra2 63. Be5+ Kf7 64. Bd6 Ra6 65. Kd5 Ra5+ 66. Bc5 Ra1 67. Nf3 Rf1 68. Ng5+ Kg7 69. e4 Rd1+ 70. Bd4+ Kh6 71. e5 Re1 72. Ne4 Rd1 73. e6 Rb1 74. e7 Rb8 75. Nf6 Rb5+ 76. Bc5 Rb8 77. e8=Q Rxe8 78. Nxe8 g5 79. Be3 Kg6 80. Bxg5 Kf5 81. Bf4 Kg6 82. Nd6 Kf6 83. Ke4 Kg6 84. Ke5 Kg7 85. Kf5 Kh7 86. Kg5 Kg8 87. Ne4 Kg7 88. Nf2 Kh7 89. Kxh5 Kg8 90. Kg5 Kh8 91. g4 Kg7 92. h5 Kf7 93. Kf5 1-0
2023.09.05 Titled Tue 5th Sep Late
822502 Koellner, Ruben Gideon (2485) Ibarra Jerez, JC (2563) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O Nc6 7. c3 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Qe2 Qe7 11. a4 Nh5 12. g3 Bh3 13. Re1 a5 14. b3 Rfd8 15. Ba3 Qg5 16. Nf3 Qf6 17. Rad1 Bf8 18. Bc1 h6 19. Rxd8 Rxd8 20. Rd1 Rxd1+ 21. Qxd1 Bg4 22. Kg2 Bc5 23. h3 Bxf3+ 24. Qxf3 Kg7 25. Qxf6+ Nxf6 26. Kf3 Ne8 27. Bd2 Nd6 28. Bd3 f5 29. exf5 gxf5 30. Ke2 e4 31. Bc2 h5 32. b4 axb4 33. cxb4 Bd4 34. Bf4 Ne8 35. Bb3 Kf6 36. Bc4 Be5 37. Bxe5+ Kxe5 38. Ke3 Nf6 39. a5 c6 40. h4 Nd5+ 41. Bxd5 cxd5 42. b5 d4+ 43. Ke2 Kd5 44. f3 d3+ 45. Ke3 Kc5 46. fxe4 fxe4 47. a6 bxa6 48. bxa6 Kb6 49. g4 hxg4 50. h5 g3 51. h6 g2 52. Kf2 d2 53. h7 g1=Q+ 54. Kxg1 d1=Q+ 55. Kf2 Qh5 0-1
2023.08.29 Titled Tue 29th Aug Early
827245 Tarasova, Viktoriy (2226) Koellner, Ruben Gideon (2478) 1-0
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. h3 Qc7 9. Be3 Nf8 10. Re1 g5 11. Nd2 Ng6 12. Nf1 g4 13. hxg4 Bxg4 14. f3 Be6 15. Bxe6 fxe6 16. dxe5 dxe5 17. a5 h5 18. Na4 h4 19. Nc5 Kf7 20. c3 Rag8 21. Nxe6 Kxe6 22. Qb3+ Kd7 23. Red1+ Kc8 24. Bxa7 Nf4 25. Ne3 h3 26. g4 h2+ 27. Kh1 c5 28. Nf5 Rh7 29. a6 b5 30. Bb6 Qxb6 31. a7 Kb7 32. Qxg8 Nxg8 33. a8=Q+ Kc7 34. Ra7+ Qxa7 35. Qxa7+ Kc6 36. Qa8+ Kc7 37. Qxg8 Rh3 38. Nxe7 Rxf3 39. Qd8+ Kb7 40. Rd7+ Ka6 41. Qa8+ Kb6 42. Rb7# 1-0
2023.08.29 Titled Tue 29th Aug Late
829818 Koellner, Ruben Gideon (2478) Labussiere, Yago (2203) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 a5 6. b5 O-O 7. c4 c6 8. a4 Bf5 9. Ba3 Nbd7 10. Be2 Ne4 11. Nxe4 Bxe4 12. O-O c5 13. dxc5 Bxa1 14. Qxa1 Qc7 15. cxd5 Nxc5 16. Qd4 Bxf3 17. Bxf3 Rac8 18. Bg4 f5 19. Bb2 Rf6 20. Be2 b6 21. d6 Qxd6 22. Bc4+ Kg7 23. Qxd6 exd6 24. Rd1 Rd8 25. f3 Nxa4 26. Ba1 Nc5 27. h4 h6 28. Rd5 Nb7 29. g4 Rc8 30. Bf1 Kf7 31. Bxf6 Kxf6 32. gxf5 gxf5 33. Bh3 Rc5 34. Rd4 Rxb5 35. Bf1 Re5 36. Kf2 b5 37. f4 Rc5 38. Bg2 Rc7 39. Bxb7 Rxb7 40. Rxd6+ Kg7 41. Ra6 b4 42. Rxa5 b3 43. Ra1 b2 44. Rb1 Kg6 45. Kf3 Kh5 46. Kg3 Rb3 47. Kf3 Kg6 48. Kg3 Kf6 49. Kf3 Ke6 50. Ke2 Kd5 51. Kd2 Ke4 52. Kc2 Rb4 53. Kd2 Rb5 54. Ke2 Rb3 55. Kd2 Rb7 56. Ke2 Rb8 57. Kd2 Rb3 58. Kc2 Rxe3 59. Kxb2 Kxf4 60. Rf1+ Rf3 61. Rd1 Kg4 62. Rd6 h5 63. Rh6 Kxh4 64. Kc2 Kg4 65. Kd2 h4 66. Ke2 Rf4 67. Ke3 Kg3 68. Rg6+ Rg4 69. Rf6 f4+ 70. Ke2 Kg2 71. Rf8 h3 72. Ra8 h2 73. Kd3 h1=Q 74. Ra2+ Kg3 75. Kd4 Qf3 76. Ra8 Qe3+ 77. Kd5 Rg5+ 78. Kd6 Qe5+ 0-1
2023.08.28 World Rapid Team 2023
832917 Rabiega, R (2468) Koellner, Ruben Gideon (2478) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nd2 e5 4. c3 Be7 5. Ngf3 Nbd7 6. Bd3 O-O 7. O-O c6 8. a4 a5 9. Re1 Qc7 10. Nf1 Re8 11. Ng3 Bf8 12. h3 g6 13. Be3 Bg7 14. Qd2 b6 15. Rad1 Bb7 16. Bc2 Rad8 17. Bg5 c5 18. dxe5 Nxe5 19. Nxe5 dxe5 20. Qe3 Rxd1 21. Rxd1 Rd8 22. Rxd8+ Qxd8 23. Nf1 h6 24. Bxh6 Bxh6 25. Qxh6 Bxe4 26. Bxe4 Nxe4 27. Qe3 Qd5 28. f3 Nd6 29. Nd2 Kg7 30. Ne4 f5 31. Nxd6 Qxd6 32. Qg5 Kf7 33. Qh6 Qd1+ 34. Kh2 Qxa4 35. Qh7+ Kf6 36. Qh8+ Kf7 37. Qh7+ Kf6 38. Qh8+ Kf7 1/2-1/2
2023.08.28 World Rapid Team 2023
833037 Svidler, P (2688) Koellner, Ruben Gideon (2478) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O Nb6 7. Bb3 exd4 8. Qxd4 O-O 9. a4 a5 10. Be3 Bg4 11. Nd2 Nfd7 12. Qd3 Nc5 13. Bxc5 dxc5 14. Qe3 Qd4 15. Qf4 Bd6 16. Qxg4 Qxd2 17. Rad1 Qh6 18. f4 c4 19. Ba2 Rad8 20. e5 Bb4 21. Ne4 Nxa4 22. Rxd8 Rxd8 23. Bxc4 Nxb2 24. Ba2 b5 25. e6 fxe6 26. Bxe6+ Kh8 27. Ng5 Rf8 28. Nf7+ Rxf7 29. Bxf7 Qb6+ 30. Kh1 Qb8 31. f5 Qf8 32. Qh5 Be7 33. Bg6 h6 34. f6 Bxf6 35. Qxb5 a4 36. Qxb2 1-0
2023.08.28 World Rapid Team 2023
833169 Koellner, Ruben Gideon (2478) Koch, T1 (2426) 1/2-1/2
1. d4 Nf6 2. Nf3 e6 3. Bg5 h6 4. Bh4 c5 5. e3 Nc6 6. c3 cxd4 7. exd4 Be7 8. Nbd2 b6 9. Bd3 Bb7 10. Bxf6 Bxf6 11. Qe2 Qc7 12. h4 g6 13. Nc4 Ne7 14. Ne3 Bg7 15. O-O-O O-O-O 16. Kb1 Kb8 17. Rc1 f5 18. Nc4 Nd5 19. g3 Ne7 20. Rhe1 Nc6 21. Nce5 Nxe5 22. Nxe5 Bxe5 23. Qxe5 Qxe5 24. dxe5 g5 25. hxg5 hxg5 26. Rcd1 Rh2 27. Rd2 Bc6 28. b3 Rdh8 29. Kb2 Rh1 30. Ree2 R8h2 31. a4 Rf1 32. Rc2 f4 33. gxf4 gxf4 34. Bb5 f3 35. Red2 Bxb5 36. axb5 Kc7 37. c4 Re1 38. Rd3 Rxe5 39. Rxf3 Rhh5 40. Rf7 Ref5 41. Rg7 Rhg5 42. Re7 Kd8 43. Rh7 Rh5 44. Rxh5 Rxh5 45. Rc3 a6 46. bxa6 Ra5 47. Rd3 Rxa6 48. Rd6 Ra5 49. Rxb6 Rf5 50. Rb8+ Kc7 51. Re8 Rxf2+ 52. Kc3 Rf3+ 53. Kb4 Kc6 54. Rc8+ Kb7 55. Rc5 d6 56. Rb5+ Kc6 57. Ra5 Kb6 58. Ra8 Kc6 59. Ra6+ Kc7 60. Ka4 Rf4 61. Kb5 Rf5+ 62. Kb4 Rf3 63. Ra7+ Kc6 64. Re7 Re3 65. Ka4 Re4 66. Ka3 Re3 67. Kb2 Re2+ 68. Kc3 Re3+ 69. Kc2 Kc5 70. Kb2 Re2+ 71. Ka3 Re3 72. Rc7+ Kb6 73. Rc8 Kb7 74. Rh8 Kc6 75. Rh5 Kb6 76. Kb2 Kc6 77. Kc2 d5 78. cxd5+ exd5 79. Rh8 Kc5 80. Rc8+ Kb5 81. Rc7 1/2-1/2
2023.08.28 World Rapid Team 2023
833253 Koellner, Ruben Gideon (2478) Zanan, E (2470) 1-0
1. d4 Nf6 2. Nf3 d5 3. c3 c6 4. Bf4 Bf5 5. Nh4 Bg4 6. h3 Bh5 7. g4 Bg6 8. Nd2 Nbd7 9. Qb3 b5 10. Nxg6 hxg6 11. Bg2 Nb6 12. e4 e6 13. Bg3 Be7 14. O-O a5 15. exd5 exd5 16. Nf3 Ne4 17. Ne5 Nd2 18. Qc2 Nxf1 19. Nxc6 Qd7 20. Ne5 Qb7 21. Bxf1 Nc4 22. a4 Nxe5 23. Bxe5 O-O 24. axb5 f5 25. c4 Bf6 26. Bg2 Rad8 27. Qe2 Qf7 28. Bxf6 Qxf6 29. Bxd5+ Kh7 30. Ra3 Qxd4 31. Rd3 Qf4 32. Qe3 Qc7 33. Qg3 Qe7 34. g5 Rxd5 35. Rxd5 Qe1+ 36. Kg2 Qe4+ 37. Qf3 Qxc4 38. b6 Rb8 39. Rd6 Qb4 40. Qc6 Qf4 41. Rxg6 Rd8 42. Rxg7+ Kxg7 43. Qf6+ Kh7 44. Qxd8 Qe4+ 45. Kf1 Qb1+ 46. Ke2 Qc2+ 47. Qd2 Qe4+ 48. Qe3 Qc2+ 49. Kf3 Qc6+ 50. Kg3 Kg6 51. h4 Qd6+ 52. f4 Qc6 53. h5+ 1-0
2023.08.27 World Rapid Team 2023
832515 Koellner, Ruben Gideon (2478) Magana, B (2020) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 Bg4 4. h3 Bh5 5. g4 Bg6 6. Ne5 Nfd7 7. Nxg6 hxg6 8. Bg2 e6 9. c4 c6 10. Nc3 dxc4 11. e4 Nb6 12. Be3 Be7 13. Qd2 Na6 14. O-O O-O 15. a4 Nb4 16. a5 Nd7 17. Qe2 e5 18. d5 Qc8 19. Ra4 cxd5 20. Nxd5 Nxd5 21. exd5 c3 22. bxc3 Nc5 23. Ra2 Bd6 24. Rb1 Qc7 25. Rb5 b6 26. c4 Rfc8 27. h4 Rab8 28. h5 gxh5 29. gxh5 bxa5 30. Raxa5 Rxb5 31. Rxb5 Rb8 32. Rxb8+ Qxb8 33. Qg4 Qb1+ 34. Kh2 e4+ 35. Kh3 Qg1 36. Qc8+ Kh7 37. Qf5+ Kg8 38. Bf4 Bxf4 39. Qxf4 Nd3 40. Qb8+ Kh7 41. Bxe4+ Kh6 42. Qh8+ 1-0
2023.08.27 World Rapid Team 2023
832599 Koellner, Ruben Gideon (2478) Van Foreest, Jorden (2697) 1/2-1/2
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 a5 6. b5 c5 7. bxc6 Nxc6 8. a4 O-O 9. c3 e5 10. Ba3 Re8 11. Bb5 e4 12. Ng1 Ng4 13. h3 Nh6 14. Ne2 Nf5 15. Qb3 Be6 16. g3 Nd6 17. Nf4 Nxb5 18. Qxb5 Bh6 19. Nxe6 Rxe6 20. c4 Nxd4 21. exd4 Bxd2+ 22. Kxd2 Qf6 23. Kc1 Rc6 24. c5 Qxd4 25. Qb2 Qxa4 26. Rd1 Qc4+ 27. Kb1 b6 28. Qd4 Qxd4 29. Rxd4 Rd8 30. cxb6 Rxb6+ 31. Ka2 Rf6 32. Rd2 Rf3 33. Bc5 Rc3 34. Bd4 Rc4 35. Rad1 f5 36. Rb2 Rd7 37. Rdd2 Kf7 38. Ka3 g5 39. Rb6 Ke8 40. Re6+ Re7 41. Rxe7+ Kxe7 42. Be3 Ke6 43. Bxg5 d4 44. Rb2 Kd5 45. Rb5+ Rc5 46. Rxc5+ Kxc5 47. Kb3 Kb5 48. g4 a4+ 49. Kc2 fxg4 50. hxg4 Kc4 51. Be7 e3 52. fxe3 dxe3 53. Kd1 Kd3 54. Ke1 e2 55. g5 Ke3 56. Ba3 Kf4 57. Bc1+ Kf3 58. Ba3 Kg4 59. Bc1 Kf3 1/2-1/2
2023.08.27 World Rapid Team 2023
832719 Bellahcene, B (2515) Koellner, Ruben Gideon (2478) 1-0
1. e4 d6 2. d4 Nf6 3. f3 e5 4. d5 Be7 5. Be3 O-O 6. c4 Nh5 7. Nc3 Bg5 8. Bf2 g6 9. h4 Bh6 10. g4 Nf4 11. Nge2 c6 12. g5 Bg7 13. Qd2 f6 14. Nxf4 exf4 15. c5 f5 16. Bc4 Kh8 17. h5 Qxg5 18. O-O-O gxh5 19. Rdg1 Qh6 20. Bd4 Be5 21. cxd6 Nd7 22. dxc6 bxc6 23. Qg2 Bb7 24. Rxh5 Qf6 25. Qh3 Rf7 26. Bxf7 Qxf7 27. Rxf5 1-0
2023.08.27 World Rapid Team 2023
832827 Koellner, Ruben Gideon (2478) Short, N (2592) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 c5 5. c3 Nbd7 6. Ne5 Nxe5 7. dxe5 Nd7 8. f4 b6 9. Bd3 Bb7 10. O-O Qc7 11. Qe2 Be7 12. e4 c4 13. Bc2 b5 14. f5 Nxe5 15. fxe6 fxe6 16. exd5 Bxd5 17. Ne4 Nd3 18. a4 Qe5 19. Re1 Nxe1 20. Qxe1 O-O 21. Be3 Bxe4 22. Bd4 Bc5 23. Bxe4 Bxd4+ 24. Kh1 Rad8 25. cxd4 Qxd4 26. Qb1 b4 27. Bxh7+ Kh8 28. h3 Rf4 29. Bg6 Qf6 30. Bh5 Rd2 31. Qe1 Rdf2 32. Kg1 0-1
2023.08.26 World Rapid Team 2023
832107 Miesen, Sander Koellner, Ruben Gideon (2478) 0-1
1. d4 d6 2. Bf4 Nf6 3. Nc3 g6 4. e4 Bg7 5. Qd2 Nc6 6. O-O-O O-O 7. Bh6 e5 8. d5 Ne7 9. f3 Nh5 10. g4 Nf4 11. Bxg7 Kxg7 12. Nge2 g5 13. h4 h6 14. Nxf4 gxf4 15. Bd3 Ng6 16. Rdg1 Rh8 17. h5 Nf8 18. Ne2 Nh7 19. g5 Nxg5 20. Nxf4 exf4 21. Qxf4 Qf6 22. Qg3 Kf8 23. f4 Nh3 24. Rxh3 Bxh3 25. Qxh3 Qxf4+ 26. Kb1 Rg8 27. Rf1 Rg3 28. Qh2 Qe3 29. e5 dxe5 30. b3 Rd8 31. Bc4 Rd6 32. Kb2 Ke7 33. Qh4+ f6 34. Bd3 Qd4+ 35. Qxd4 exd4 36. Re1+ Re3 37. Rg1 Rxd5 38. Rg7+ Kd6 39. Bg6 Re7 40. Rg8 Ke5 41. Rf8 c5 42. Kc1 Rd6 43. Kd2 Kf4 44. Rh8 Kg5 45. Rf8 Rde6 46. Kd3 b5 47. Rc8 Re3+ 48. Kd2 R7e5 49. Ra8 c4 50. bxc4 bxc4 51. c3 d3 52. Kc1 Re2 53. Rxa7 Rh2 0-1
2023.08.26 World Rapid Team 2023
832149 Grischuk, A (2736) Koellner, Ruben Gideon (2478) 1-0
1. d4 d5 2. Nf3 Nf6 3. Bg5 Nbd7 4. e3 g6 5. c4 c6 6. cxd5 cxd5 7. Nc3 Bg7 8. Bd3 O-O 9. O-O a6 10. Qb3 h6 11. Bf4 e6 12. Rfc1 Qe7 13. Na4 Nh5 14. Bc7 b5 15. Nb6 Nxb6 16. Bxb6 Qb7 17. Ba5 Bf6 18. Rc7 Qb8 19. Ne5 Bxe5 20. dxe5 Ra7 21. Rac1 Rxc7 22. Rxc7 Bb7 23. Qc2 Ng7 24. Bxg6 fxg6 25. Qxg6 Qxc7 26. Bxc7 Rc8 27. Qf6 Ne8 28. Qxe6+ Kg7 29. Qd7+ Kg8 30. f4 Nxc7 31. f5 a5 32. f6 1-0
2023.08.26 World Rapid Team 2023
832281 Koellner, Ruben Gideon (2478) Perossa, Nicolas (2265) 1-0
1. d4 d6 2. Nf3 Nf6 3. Nbd2 Bf5 4. h3 h6 5. g4 Bh7 6. Bg2 c6 7. c3 Nbd7 8. O-O Qc7 9. Nh4 e5 10. e4 g5 11. Nf5 Bxf5 12. exf5 h5 13. Re1 hxg4 14. hxg4 O-O-O 15. Nf1 Be7 16. Be3 e4 17. f3 d5 18. c4 Bd6 19. cxd5 Nxd5 20. fxe4 Bh2+ 21. Kf2 Nxe3 22. Rxe3 Qf4+ 23. Qf3 Nf6 24. Qxf4 gxf4 25. Rd3 Nxg4+ 26. Ke2 Bg1 27. Bf3 Nh2 28. Rad1 Nxf1 29. Kxf1 Be3 30. Rxe3 fxe3 31. Ke2 Rh2+ 32. Kxe3 Rxb2 33. e5 f6 34. e6 Rxa2 35. Bh5 Rh2 36. Bg6 Rh3+ 37. Ke2 Rg8 38. d5 cxd5 39. Rxd5 Rg7 40. Rc5+ Kb8 41. Kf2 Rd3 42. Bf7 Rxf7 43. exf7 Rd8 44. Rd5 Rf8 45. Rd7 a5 46. Ke3 Ka7 47. Kd4 Kb6 48. Kd5 a4 49. Ke6 Kc6 50. Rd1 b5 51. Ke7 Rxf7+ 52. Kxf7 b4 53. Kxf6 b3 54. Rb1 Kc5 55. Ke6 Kb4 56. f6 a3 57. f7 a2 58. f8=Q+ Kc3 59. Qf6+ Kc4 60. Rc1+ 1-0
2023.08.26 World Rapid Team 2023
832365 Martirosyan, Haik M. (2683) Koellner, Ruben Gideon (2478) 1-0
1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bf4 O-O 6. e3 b6 7. cxd5 Nxd5 8. Nxd5 Qxd5 9. Bxc7 Qa5+ 10. Nd2 Ba6 11. Bxa6 Nxa6 12. Bg3 Qb5 13. Qe2 Qxb2 14. O-O Bb4 15. Qxa6 Bxd2 16. h3 Rfc8 17. a3 h6 18. Rab1 Qc2 19. Qe2 Ba5 20. Qg4 Kh7 21. Rbc1 Qg6 22. Qf3 Bd2 23. Rcd1 Bc3 24. Qe2 Qe4 25. Rd3 Ba5 26. Rfd1 Rd8 27. Qh5 Qg6 28. Qf3 Rac8 29. e4 Rc4 30. Kh2 b5 31. d5 Rxe4 32. d6 Bb6 33. d7 e5 34. Rd6 f6 35. Qb3 h5 36. h4 Qf5 37. R1d2 Rd4 38. R2xd4 Bxd4 39. Qf7 Bb6 40. Qe8 Qg6 41. Qe7 Qf5 42. Rxb6 Rxd7 43. Qe6 Qxe6 44. Rxe6 Kg6 45. Ra6 Kf5 46. f3 g5 47. hxg5 fxg5 48. Bf2 g4 49. fxg4+ hxg4 50. Rxa7 Rd2 51. Bg3 Rd5 52. Re7 Ke4 53. Kg1 Rc5 54. Kh2 Rd5 55. Bf2 Rd3 56. Bc5 Kf4 57. Rf7+ Kg5 58. Be7+ Kg6 59. Rf6+ Kg7 60. Rf5 Re3 61. Bc5 Re4 62. Bd6 Kg6 63. Rxe5 Rd4 64. Bb4 1-0
2023.08.22 Titled Tue 22nd Aug Early
836966 Koellner, Ruben Gideon (2478) Issabayev, D (2203) 1-0
1. d4 g6 2. Nf3 Bg7 3. Nbd2 d5 4. e3 Nf6 5. b4 O-O 6. c4 a5 7. b5 c5 8. dxc5 Qc7 9. Ba3 Rd8 10. Rc1 Nbd7 11. cxd5 Nxd5 12. Bc4 Nc3 13. Qb3 Nxc5 14. Bxc5 Qxc5 15. Rxc3 Bxc3 16. Qxc3 Be6 17. Qe5 Qxe5 18. Nxe5 Rac8 19. Bxe6 Rc1+ 20. Ke2 Rxh1 21. Bxf7+ Kg7 22. Bb3 Rxh2 23. g3 h5 24. Ndc4 a4 25. Bxa4 Rh1 26. Bb3 g5 27. Nf3 h4 28. Nxg5 h3 29. Ne6+ Kf6 30. Nxd8 h2 31. Nd2 Re1+ 32. Kxe1 h1=Q+ 33. Nf1 Qh5 34. a4 Qc5 35. Nd2 Qc7 36. Ne6 b6 37. Nd4 Qc1+ 38. Ke2 e5 39. Nc6 Qb2 40. f4 exf4 41. gxf4 Qc3 42. Ne4+ Kf5 43. Nxc3 1-0
2023.08.22 Titled Tue 22nd Aug Early
837347 Koellner, Ruben Gideon (2478) Le Tuan Minh (2559) 0-1
1. d4 d5 2. Nf3 Nf6 3. Nbd2 c6 4. e3 Bf5 5. Ne5 h6 6. Bd3 e6 7. Bxf5 exf5 8. c4 Bd6 9. Nef3 O-O 10. O-O Re8 11. Qc2 g6 12. cxd5 cxd5 13. Qb3 Qe7 14. Nb1 Nc6 15. Nc3 Rad8 16. Bd2 Bb8 17. Rac1 Rd7 18. Na4 Ne4 19. Nc5 Nxc5 20. Rxc5 Red8 21. Rfc1 g5 22. Qd3 Qe6 23. b4 Bd6 24. b5 Ne7 25. R5c2 Ng6 26. Qb3 g4 27. Ne1 Kh7 28. Ba5 Re8 29. Bb4 Bb8 30. g3 Qe4 31. Qd3 h5 32. Qxe4 fxe4 33. Rc8 Rdd8 34. Rxd8 Rxd8 35. Ng2 Kg7 36. Kf1 Kf6 37. a4 Ke6 38. a5 Kd7 39. Ke2 Bd6 40. Bxd6 Kxd6 41. a6 bxa6 42. Rc6+ Ke7 43. Rxa6 Rd7 44. Kd2 Rb7 45. Ra5 Kd6 46. Kc3 Rc7+ 47. Kb3 Ke6 48. Ra6+ Ke7 49. Ra5 Kf6 50. b6 axb6 51. Rxd5 Rc1 52. Rxh5 Rf1 53. Nf4 Rxf2 54. Nd5+ Kg7 55. Kc4 Rf3 56. Rg5 Kh6 57. Rxg4 f5 58. Rh4+ Nxh4 59. gxh4 Rh3 60. Kb5 f4 61. exf4 e3 62. Nxe3 Rxe3 63. Kxb6 Kg6 64. d5 Kf7 65. h5 Ke7 66. h6 Kd6 67. f5 Rh3 68. f6 Rxh6 69. f7 Rf6 70. h4 Rxf7 71. h5 Rh7 72. h6 Rxh6 73. Kb5 Kxd5 74. Kb4 Rc6 75. Kb3 0-1
2023.08.22 Titled Tue 22nd Aug Early
837543 Kashefi, Amir Hosein (2194) Koellner, Ruben Gideon (2478) 0-1
1. d4 d6 2. Nf3 Nf6 3. g3 Nbd7 4. Bg2 e5 5. O-O Be7 6. c4 O-O 7. Nc3 c6 8. Qc2 a6 9. a4 a5 10. b3 Qc7 11. Bb2 Re8 12. Rad1 Nb8 13. dxe5 dxe5 14. Ne4 Nbd7 15. Nh4 Nxe4 16. Bxe4 Bxh4 17. Bxh7+ Kh8 18. gxh4 g6 19. Bxg6 fxg6 20. Kh1 Nf8 21. f4 Qh7 22. Bxe5+ Kg8 23. Rg1 Kf7 24. e4 Qxh4 25. Rd6 Be6 26. f5 Bxf5 27. exf5 Rxe5 28. fxg6+ Kg7 29. Rd2 Qe4+ 30. Qxe4 Rxe4 31. Rf2 Nxg6 32. Rf5 Rh8 33. Rxa5 Re2 34. Rg2 Rxg2 35. Kxg2 Nf4+ 36. Kg3 Ne6 37. Ra7 Rb8 38. a5 Nc7 39. Kf4 Kf6 40. b4 Ke6 41. h4 Kd6 42. h5 Ne6+ 43. Kf5 Nd4+ 44. Kg6 c5 45. b5 Nf3 46. a6 bxa6 47. Rxa6+ Ke5 48. h6 Kd4 0-1
2023.08.22 Titled Tue 22nd Aug Early
837791 Koellner, Ruben Gideon (2478) Badelka, Olga (2379) 1/2-1/2
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 b6 5. Ne5 a6 6. f4 c5 7. c3 Bb7 8. Bd3 Nc6 9. Qf3 Be7 10. O-O Nd7 11. Qh3 g6 12. g4 Ncxe5 13. fxe5 h5 14. Nf3 Qc7 15. Bd2 c4 16. Bc2 O-O-O 17. g5 Nb8 18. Qg2 Nc6 19. h4 b5 20. a3 a5 21. Rfc1 Kd7 22. Qf2 Ra8 23. Nh2 Rhf8 24. Nf1 Qb6 25. Ng3 b4 26. axb4 axb4 27. Rxa8 Bxa8 28. Ra1 bxc3 29. bxc3 Qb2 30. Rc1 Bb7 31. Qe1 Ra8 32. Qd1 Ra2 33. Nf1 Ba6 34. Bb1 Ra1 35. Bc2 Rxc1 36. Qxc1 Ba3 37. Qb1 Bb5 38. Kf2 Na5 39. Qxb2 Bxb2 40. Ke2 Nb3 41. Be1 Nc1+ 42. Kd1 Nd3 43. Bd2 Kc6 44. Ng3 Kb6 45. e4 Nf2+ 46. Ke2 Nxe4 47. Nxe4 dxe4 48. Bxe4 Bc6 49. Ke3 Bxe4 50. Kxe4 Kc6 51. Be1 Ba1 52. Bd2 Bb2 53. Be1 Ba1 54. Bd2 Bb2 1/2-1/2
2023.08.22 Titled Tue 22nd Aug Early
838018 Koellner, Ruben Gideon (2478) Jaskolka, T (2227) 0-1
1. d4 d5 2. Nf3 Nf6 3. Nbd2 c6 4. e3 Bg4 5. h3 Bh5 6. g4 Bg6 7. Ne5 e6 8. h4 h5 9. Nxg6 fxg6 10. g5 Nfd7 11. Bd3 Qe7 12. Bxg6+ Kd8 13. Bxh5 e5 14. c3 c5 15. Be2 Nc6 16. Nf3 cxd4 17. cxd4 e4 18. Nd2 g6 19. Nb1 Qf7 20. Nc3 Be7 21. Qb3 Nb6 22. Nxe4 Qf5 23. Ng3 Qe6 24. Bd2 Kc7 25. O-O-O Rac8 26. Kb1 Kb8 27. Rc1 Bd6 28. Bd3 Qf7 29. f4 Ne7 30. Ne4 Bc7 31. Nc5 Nf5 32. a4 Nd6 33. a5 Nbc4 34. Na6+ Ka8 35. Nxc7+ Rxc7 36. Bb4 Qd7 37. Bxg6 Rhc8 38. Bc2 Qb5 39. Qa4 Qa6 40. h5 b5 41. axb6 Qxb6 42. Bb3 Rb8 43. Bxd6 Qxd6 44. Bxc4 dxc4 45. Rxc4 Rcb7 46. Rh2 Qd5 47. Rhc2 Qh1+ 48. Ka2 Qd5 49. h6 Rb5 50. b4 Rxb4 51. Qa6 R4b6 52. Qa4 Rb4 53. Qa6 R4b6 54. Qa3 Qe6 55. d5 Qxd5 56. e4 Qe6 57. f5 Qe5 58. g6 Qf6 59. h7 Ra6 60. Qxa6 Qxa6+ 61. Ra4 Qxa4# 0-1
2023.08.22 Titled Tue 22nd Aug Late
838996 Koellner, Ruben Gideon (2478) Morales Garcia, S (2221) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Ne5 e6 5. g4 Bg6 6. h4 h5 7. Nxg6 fxg6 8. g5 Ne4 9. Bd3 Bd6 10. Nd2 Nc6 11. Nxe4 dxe4 12. Bxe4 Qe7 13. Bxg6+ Kd7 14. Bd2 Raf8 15. Qe2 Kc8 16. O-O-O e5 17. d5 Nb8 18. Bxh5 Nd7 19. Bg4 Kb8 20. Bxd7 Qxd7 21. h5 Qf5 22. Rdg1 Qxf2 23. Qxf2 Rxf2 24. h6 gxh6 25. gxh6 Rf7 26. e4 a6 27. c4 b6 28. Rf1 Rfh7 29. Rh5 Kb7 30. Kc2 b5 31. b3 Kb6 32. Be3+ Bc5 33. Rf6+ Kb7 34. Bxc5 1-0
2023.08.22 Titled Tue 22nd Aug Late
839321 Serban, Cristian-Stefan (2275) Koellner, Ruben Gideon (2478) 0-1
1. d4 d6 2. Nf3 Nf6 3. b3 Nbd7 4. Bb2 g6 5. e3 Bg7 6. Bd3 O-O 7. O-O Re8 8. c4 e5 9. dxe5 Nxe5 10. Nxe5 dxe5 11. Nc3 c6 12. Qc2 Qe7 13. Rad1 Bg4 14. Be2 Bf5 15. Qc1 Bf8 16. h3 h5 17. Rd2 Rad8 18. Rfd1 Rxd2 19. Qxd2 Qc7 20. Qc1 Rd8 21. Rxd8 Qxd8 22. Qd1 Qxd1+ 23. Bxd1 Nd7 24. Ne2 f6 25. Nc1 Kf7 26. Kf1 Bb4 27. Ke2 a5 28. Nd3 Be7 29. Bc2 b6 30. h4 Bxd3+ 31. Bxd3 f5 32. g3 e4 33. Bc2 Bf6 34. Ba3 Ke6 35. Bb1 Bc3 36. Bc2 Ne5 37. Bb1 Nf3 38. Bc2 Be5 39. Bb1 Bf6 40. Bc2 Ne5 41. Bb1 Ng4 42. Bc2 g5 43. hxg5 Bxg5 44. Bc1 Ne5 45. Bb2 Nf3 46. Bc1 h4 47. gxh4 Bxh4 48. Bb1 Ng1+ 49. Kf1 Nh3 50. f3 exf3 51. e4 f4 52. Bc2 Bg3 53. Bd1 Ng5 54. Bd2 Nxe4 55. Be1 Bxe1 56. Kxe1 f2+ 57. Kf1 Ke5 58. Bf3 Nd2+ 59. Kxf2 Nxf3 60. Kxf3 c5 61. a3 Kf5 62. a4 0-1
2023.08.22 Titled Tue 22nd Aug Late
839619 Koellner, Ruben Gideon (2478) Mamedov, Rau (2633) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 O-O 5. c3 d6 6. Bc4 c5 7. dxc5 dxc5 8. Qe2 Nc6 9. O-O Qc7 10. Re1 Nd7 11. a4 b6 12. Ba6 Rd8 13. Bxc8 Raxc8 14. Nc4 Nf8 15. g3 Ne6 16. Ng5 Nxg5 17. Bxg5 Qd7 18. Rad1 Qe6 19. f3 h6 20. Be3 h5 21. h4 Rb8 22. Kg2 Rbc8 23. Bf4 Kh7 24. Rh1 Kg8 25. Rhe1 Kh7 26. Rh1 Bh6 27. Bxh6 Kxh6 28. g4 hxg4 29. fxg4 Rxd1 30. Rxd1 Kg7 31. Rd5 Rh8 32. Kg3 Qc8 33. Qf3 Qc7+ 34. e5 Rd8 35. h5 Rxd5 36. Qxd5 f6 37. Kf4 Qc8 38. hxg6 Kxg6 39. exf6 Qc7+ 40. Kf3 Kxf6 41. Qf5+ Kg7 42. Qe6 Nd8 43. Qe5+ Qxe5 44. Nxe5 Kf6 45. Kf4 Ne6+ 46. Ke4 Ng5+ 47. Kf4 Nh3+ 48. Ke4 Nf2+ 49. Kf4 Nh3+ 50. Ke4 Nf2+ 51. Kf4 Ke6 52. Nc6 Nd3+ 53. Ke4 Nxb2 54. Nxa7 Nxa4 55. Nb5 Nb2 56. g5 Nc4 57. Nc7+ Kf7 58. Nd5 e6 59. Nf4 Nd2+ 60. Ke5 Nf3+ 61. Kd6 Nxg5 62. Kc6 e5 63. Ne2 Ne4 64. Kxb6 Ke6 65. Kc6 c4 66. Kb5 Kd5 67. Kb4 Nf2 68. Ng3 e4 69. Nf5 Nd3+ 70. Kb5 Nb2 71. Ne3+ Ke5 72. Kb4 Kf4 73. Nd5+ Kf3 74. Ka3 Nd3 75. Ka4 e3 76. Nxe3 Kxe3 77. Kb5 Ne5 78. Kc5 Kd3 79. Kd5 Nf3 0-1
2023.08.22 Titled Tue 22nd Aug Late
839691 Koellner, Ruben Gideon (2478) Asish Panda (1731) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. Nbd2 Bf5 4. e3 e6 5. Ne5 Bd6 6. g4 Bg6 7. h4 h5 8. Nxg6 fxg6 9. g5 Nfd7 10. Bd3 Nf8 11. c4 Nbd7 12. Qc2 Kf7 13. c5 Be7 14. f4 c6 15. Nf3 a5 16. O-O Qe8 17. Bd2 Kg8 18. Rfb1 b5 19. cxb6 Nxb6 20. Ne5 c5 21. dxc5 Rc8 22. Nxg6 Bxc5 23. Nxf8 Bxe3+ 24. Bxe3 Rxc2 25. Bxc2 Qxf8 26. Bxb6 Qxf4 27. Bf2 Qg4+ 28. Kh1 Qf3+ 29. Kg1 Qg4+ 30. Kh1 Qf3+ 31. Kg1 Qg4+ 1/2-1/2
2023.08.22 Titled Tue 22nd Aug Late
839917 Principe, G (2213) Koellner, Ruben Gideon (2478) 1-0
1. Nf3 d6 2. d4 Nf6 3. e3 Nbd7 4. Be2 e5 5. O-O Be7 6. c4 O-O 7. b4 exd4 8. Nxd4 c5 9. bxc5 dxc5 10. Nf3 b6 11. Bb2 Bb7 12. Nc3 Qc7 13. Qc2 Rad8 14. Rfd1 Nb8 15. Nb5 Qc8 16. Nxa7 Qe6 17. Qb3 Ne4 18. Rab1 g5 19. Ba1 g4 20. Ne1 Nd7 21. Nd3 Ng5 22. Nf4 Qe4 23. Nd5 Rfe8 24. Bd3 Qe6 25. Qc3 f6 26. Nc7 Qf7 27. Nxe8 Rxe8 28. Bf5 Ne5 29. Rxb6 Bxg2 30. Kxg2 Qh5 31. Be6+ Kf8 32. e4 1-0
2023.08.21 chess.com SpeedChess Q1Sw
851019 Winkels, M (1920) Koellner, Ruben Gideon (2478) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Qe2 Qc7 9. Rd1 Nf8 10. h3 g5 11. Nh2 Ng6 12. a5 Kf8 13. b3 Rg8 14. Kh1 Nf4 15. Bxf4 gxf4 16. Rg1 Bd7 17. dxe5 dxe5 18. Bd3 Bb4 19. Nb1 Be6 20. Nd2 Bxa5 21. Nc4 Bc3 22. Rab1 b5 23. Nd2 Ke7 24. Ndf3 a5 25. Rgd1 Rgd8 26. Nd2 Qb6 27. Ndf1 Qc5 28. Ng4 Nxg4 0-1
2023.08.21 chess.com SpeedChess Q1Sw
851139 Koellner, Ruben Gideon (2478) Jumabayev, R (2589) 0-1
1. d4 d5 2. Nf3 Bf5 3. e3 e6 4. Nbd2 h6 5. Bd3 Nf6 6. Bxf5 exf5 7. c4 c6 8. Qb3 Qb6 9. O-O Be7 10. Qc2 g6 11. Nb1 Na6 12. b3 O-O 13. Ba3 Nb4 14. Bxb4 Qxb4 15. a3 Qb6 16. Nc3 Rad8 17. c5 Qc7 18. b4 Rfe8 19. b5 f4 20. Rfe1 Bf8 21. exf4 Qxf4 22. Qa4 Ne4 23. Ne2 Qc7 24. Rab1 Bg7 25. b6 axb6 26. Rxb6 Re7 27. Reb1 Qc8 28. Ng3 Nc3 29. Qc2 Nxb1 30. Qxb1 Rde8 31. a4 h5 32. h3 Bf6 33. a5 Qc7 34. Qd3 Kg7 35. a6 bxa6 36. Qxa6 Re6 37. Rb7 Qf4 38. Qa7 R8e7 39. Rxe7 Rxe7 40. Qa3 Bxd4 41. Nxd4 Qxd4 42. Qf3 Qf6 43. Qd3 Re1+ 44. Nf1 Qe5 45. g3 Qe2 46. Qxe2 Rxe2 47. Kg2 Rc2 48. Kf3 Rxc5 49. Ne3 Rc3 50. Ke2 d4 51. Nd1 Rb3 52. Kd2 c5 53. Kc2 c4 54. Nb2 d3+ 55. Kc1 d2+ 56. Kc2 Rxb2+ 57. Kxb2 d1=Q 0-1
2023.08.21 chess.com SpeedChess Q1Sw
851195 Koellner, Ruben Gideon (2478) Sarana, A (2685) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 Bd6 5. Bd3 b6 6. Ne5 Bb7 7. f4 Nbd7 8. Qf3 c5 9. c3 a6 10. O-O Qc7 11. g4 g6 12. g5 Nh5 13. Rf2 Ng7 14. Nf1 h6 15. h4 hxg5 16. hxg5 Nf5 17. Rh2 Rxh2 18. Nxh2 Ke7 19. Qh3 cxd4 20. exd4 b5 21. Nhg4 Rf8 22. Qh7 Bxe5 23. fxe5 Qb8 24. Bxf5 exf5 25. Nf6 Nb6 26. Bf4 Rh8 0-1
2023.08.21 chess.com SpeedChess Q1Sw
851288 Rosh, Jain (2248) Koellner, Ruben Gideon (2478) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. h3 Qc7 9. Be3 Nf8 10. Bb3 g5 11. Nh2 Ng6 12. dxe5 dxe5 13. Qe2 Kf8 14. Ng4 Bxg4 15. hxg4 Qc8 16. f3 h5 17. Bxg5 hxg4 18. fxg4 Qxg4 19. Bxf6 Bc5+ 20. Rf2 Qg3 21. Bxh8 Nf4 22. Qf3 Bxf2+ 23. Kf1 Qxf3 24. gxf3 Bd4 25. Rd1 Ke7 26. Rxd4 exd4 27. Bxd4 Ne6 28. Be3 b6 29. f4 Rh8 30. f5 Nc5 31. Bxc5+ bxc5 32. Ne2 Rh4 33. Ng3 Rh2 34. e5 f6 35. e6 Rh4 36. c3 Rh2 37. Ne2 Rh5 38. Bc2 Rh4 39. Ke1 Kd6 40. Kd2 c4 41. b3 cxb3 42. Bxb3 c5 43. Bc2 Rh2 44. Ke3 Rh3+ 45. Kd2 Rh2 46. Kd1 Rh1+ 47. Kd2 Rh2 1/2-1/2
2023.08.21 chess.com SpeedChess Q1Sw
851361 Koellner, Ruben Gideon (2478) Kodinets, K (2409) 1-0
1. d4 d6 2. Nf3 Nf6 3. Nbd2 Nbd7 4. e4 e5 5. dxe5 Nxe5 6. Nxe5 dxe5 7. Bc4 Bc5 8. O-O O-O 9. Qe2 h6 10. c3 a5 11. a4 Qe7 12. Nb3 Bb6 13. Be3 Nd7 14. Rfd1 Bxe3 15. Qxe3 Nb6 16. Be2 Bd7 17. Qc5 Qe6 18. Qxc7 Rfc8 19. Qxb7 Rab8 20. Nc5 Rxb7 21. Nxe6 Bxe6 22. Ba6 Rcb8 23. Bxb7 Rxb7 24. b4 Nc4 25. bxa5 Nxa5 26. Rd8+ Kh7 27. Ra8 Nb3 28. Rb1 Rc7 29. a5 Rxc3 30. a6 Nd2 31. Ra1 Nxe4 32. a7 Bd5 33. Rd8 Bb7 34. f3 Ng5 35. Rb1 Nxf3+ 36. gxf3 Bxf3 37. Rf1 Be4 38. a8=Q Bxa8 39. Rxa8 Rc7 40. Re8 f6 41. Rd1 h5 42. Red8 Kh6 43. R1d7 Rc1+ 44. Kf2 Rc2+ 45. Kg3 Rc3+ 46. Rd3 Rc1 47. Rh8+ Kg6 48. Rd7 Rg1+ 49. Kf2 Rg5 50. Rg8 Kh7 51. Rf8 h4 52. Rxf6 h3 53. Rf3 Rg2+ 54. Ke3 Rxh2 55. Rg3 Rh1 56. Rdxg7+ Kh6 57. Rg8 Kh7 58. R8g4 Re1+ 59. Kf2 Re4 60. Rxh3# 1-0
2023.08.21 chess.com SpeedChess Q1Sw
851398 Koellner, Ruben Gideon (2478) Tabatabaei, M (2696) 0-1
1. d4 Nf6 2. Nf3 d6 3. Nbd2 g6 4. e4 Bg7 5. Bc4 O-O 6. O-O Nxe4 7. Nxe4 d5 8. Bd3 dxe4 9. Bxe4 c6 10. c3 Bg4 11. h3 Bxf3 12. Qxf3 e6 13. Re1 Nd7 14. Bc2 a5 15. a4 Qb6 16. h4 h5 17. Re2 Rae8 18. Be3 Qxb2 19. Rb1 Qxc3 20. Rxb7 Nf6 21. Bxg6 fxg6 22. Rxg7+ Kh8 23. Rxg6 Qa1+ 24. Kh2 Ng4+ 25. Rxg4 Rxf3 26. Rg5 Rf5 27. Rg6 Kh7 28. Rh6+ Kg7 29. Bg5 Qxd4 30. Rhxe6 Rxe6 31. Rxe6 Rxg5 32. hxg5 Qxa4 33. g3 Qc4 34. Rf6 a4 35. f4 a3 36. f5 Qe2+ 0-1
2023.08.12 Erkenschwick Jubilee 2023
836203 Koellner, Ruben Gideon (2478) Meshkovs, Nikita (2544) 1/2-1/2
1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e3 b6 5. Nbd2 Be7 6. c3 Bb7 7. Bxf6 Bxf6 8. Bd3 Nc6 9. Qe2 a6 10. h4 Qc7 11. Ng5 h6 12. Qh5 Nd8 13. Nge4 Be7 14. f4 d6 15. Qg4 Bf8 16. f5 exf5 17. Qxf5 d5 18. Nf2 Bd6 19. O-O-O Ne6 20. Kb1 O-O-O 21. h5 Kb8 22. Ng4 Ng5 23. Qf1 c4 24. Bf5 Rhe8 25. Re1 Bg3 26. Re2 Bc8 27. Ka1 Rd6 28. Qb1 Bxf5 29. Qxf5 Qd7 30. Rf1 b5 31. a3 Kb7 32. Qxd7+ Rxd7 33. Nf3 f6 34. Nxg5 fxg5 35. Rf3 Bc7 36. Nf2 Rde7 37. e4 dxe4 38. Rfe3 Kc6 39. Rxe4 Rxe4 40. Rxe4 Rxe4 41. Nxe4 Kd5 42. Nc5 a5 43. a4 b4 44. Kb1 g4 45. Kc2 b3+ 46. Kd2 Bf4+ 47. Kd1 g3 48. Nb7 Bc7 49. Nc5 Bd8 50. Kd2 Bg5+ 51. Kd1 Bd8 52. Kd2 Bg5+ 53. Kd1 Bd8 1/2-1/2
2023.08.11 Erkenschwick Jubilee 2023
836194 Lanka, Z (2387) Koellner, Ruben Gideon (2478) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O Nb6 7. Be2 exd4 8. Nxd4 O-O 9. a4 a5 10. f4 Ne8 11. g4 d5 12. Nxd5 Nxd5 13. exd5 Qxd5 14. Bf3 Qd8 15. Kh1 c6 16. Be3 Nf6 17. Bg1 Bd6 18. f5 Bc7 19. Ra3 Nd5 20. Rd3 Qf6 21. Bxd5 cxd5 22. Nf3 Re8 23. Bd4 Qh6 24. Rd2 Bd7 25. b3 Re4 26. Rg2 Rae8 27. c3 Bf4 28. Ng1 Qa6 29. Qf3 b5 30. Nh3 Be3 31. g5 Bxd4 32. cxd4 bxa4 33. Ng1 Re3 34. Qf2 Bb5 35. Rc1 Bd3 36. Rc3 Re1 37. g6 hxg6 38. fxg6 Bxg6 39. Rcg3 axb3 40. h4 Rf1 41. Qd2 Qf6 42. Kh2 Qxh4+ 43. Nh3 Ree1 44. Qxa5 Rh1# 0-1
2023.08.10 Erkenschwick Jubilee 2023
836193 Besou, Hussain (2364) Koellner, Ruben Gideon (2478) 0-1
1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bf4 O-O 6. e3 b6 7. Bd3 Ba6 8. cxd5 Nxd5 9. Bg3 Nxc3 10. bxc3 Bxd3 11. Qxd3 c5 12. O-O Nc6 13. e4 cxd4 14. cxd4 Rc8 15. Rfd1 Qd7 16. d5 Nb4 17. Qb3 exd5 18. Ne5 Qb7 19. exd5 Rcd8 20. Rd4 Nxd5 21. Rad1 Nf6 22. Nxf7 Rxd4 23. Nd6+ Qd5 24. Rxd4 Qxb3 25. axb3 Rd8 26. Kf1 Bxd6 27. Bxd6 Kf7 28. Be5 Rxd4 29. Bxd4 Ne4 30. Ke2 g6 31. Kd3 Nd6 32. Be5 Ke6 33. Kd4 Nb5+ 34. Ke4 a5 35. f4 Nd6+ 36. Kd4 Nb5+ 37. Ke4 Nd6+ 38. Kd4 h5 39. g3 Nb5+ 40. Ke4 Nd6+ 41. Kd4 Kd7 42. Kd5 Nf5 43. Ke4 Nd6+ 44. Kd5 Nf5 45. Ke4 Kc6 46. Bc3 Kd6 47. Be1 Ke6 48. h3 b5 49. g4 Nd6+ 50. Kd4 a4 51. bxa4 bxa4 52. Kc5 a3 53. Kb4 a2 54. Bc3 Ne4 55. Bb2 h4 56. Kb3 Nf2 57. Kxa2 Nxh3 58. Bd4 Nxf4 59. Bg1 Kf6 0-1
2023.08.09 Erkenschwick Jubilee 2023
836185 Koellner, Ruben Gideon (2478) Berelowitsch, A (2492) 0-1
1. d4 e6 2. Nf3 c5 3. c3 d5 4. e3 Nf6 5. Nbd2 Be7 6. Bd3 Nbd7 7. Ne5 Nxe5 8. dxe5 Nd7 9. f4 c4 10. Bc2 Nc5 11. O-O Bd7 12. b3 cxb3 13. axb3 Bb5 14. Rf3 Qc7 15. b4 Nd3 16. Nb3 Qxc3 17. Bd2 Qc4 18. Nd4 Bd7 19. b5 Nc5 20. Rc1 a5 21. Rg3 g6 22. Bb3 Nxb3 23. Rxc4 dxc4 24. Nxb3 cxb3 25. Qxb3 a4 26. Qa2 O-O 27. e4 a3 28. Bc1 Rfc8 29. Bxa3 Rc1+ 30. Kf2 Bc5+ 31. Ke2 Bxb5+ 32. Kd2 Rf1 33. Qb3 Rf2+ 34. Ke1 Rxa3 35. Qxa3 Re2+ 36. Kd1 Bxa3 0-1
2023.08.08 Erkenschwick Jubilee 2023
836182 Royal, Shreyas (2402) Koellner, Ruben Gideon (2478) 0-1
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Nbd7 8. h3 h6 9. Bf4 Nb6 10. Nf3 Be6 11. Qc2 Bd6 12. Be5 Bxe5 13. Nxe5 Nfd7 14. Nf3 Qe7 15. Ne2 Qb4+ 16. Qc3 a5 17. O-O Na4 18. Qc2 Nab6 19. Ne5 Nxe5 20. dxe5 Nc4 21. Bxc4 Qxc4 22. Qxc4 dxc4 23. Rfd1 Ke7 24. e4 g5 25. f3 a4 26. Nd4 Rhd8 27. Nf5+ Bxf5 28. exf5 Rxd1+ 29. Rxd1 a3 30. Rb1 Ra5 31. bxa3 Rxe5 32. Rxb7+ Kd6 33. Kf2 c3 34. Rb1 Kc5 35. Re1 Rxf5 36. Re3 Kd4 37. Re4+ Kd3 38. Re3+ Kd2 39. Re2+ Kc1 40. Re4 c2 41. Ke2 Rc5 42. Rb4 Re5+ 0-1
2023.08.08 Titled Tue 8th Aug Early
856913 Kukreja, Sankalp (2158) Koellner, Ruben Gideon (2478) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. Be3 Nf8 10. h3 g5 11. dxe5 dxe5 12. Nxe5 Qxe5 13. Bd4 Qf4 14. g3 Qc7 15. e5 Be6 16. exf6 Bd6 17. Bxe6 Nxe6 18. Rxe6+ fxe6 19. f7+ Kxf7 20. Qh5+ Ke7 21. Bxh8 Rxh8 22. Ne4 Be5 23. Rd1 Bg7 24. Qg6 Qe5 25. Nc5 Rd8 26. Rxd8 Kxd8 27. Nxe6+ 1-0
2023.08.08 Titled Tue 8th Aug Early
857104 Koellner, Ruben Gideon (2478) Chudnovsky, J (2367) 1-0
1. Nf3 Nf6 2. e3 g6 3. d4 Bg7 4. Nbd2 d5 5. b4 O-O 6. c4 c6 7. a4 Nbd7 8. Bb2 Ne4 9. Nxe4 dxe4 10. Nd2 f5 11. Qb3 e5 12. d5 cxd5 13. cxd5 Kh8 14. Rd1 a5 15. Ba3 axb4 16. Bxb4 Rf6 17. Bb5 Bf8 18. Nc4 Nc5 19. Bxc5 Bxc5 20. Nxe5 Qa5+ 21. Ke2 b6 22. Nc6 Ba6 23. Nxa5 1-0
2023.08.08 Titled Tue 8th Aug Early
857498 Smirnov, Mark (2005) Koellner, Ruben Gideon (2478) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. a5 Nf8 10. d5 Ng6 11. Bb3 a6 12. h3 O-O 13. Be3 c5 14. Na4 Nd7 15. Bc4 Rb8 16. Qd2 Qd8 17. Rab1 f5 18. exf5 Rxf5 19. Bd3 Rxf3 20. Bxg6 Rf8 21. b4 cxb4 22. Qxb4 Rf6 23. Be4 Nf8 24. Bb6 Qe8 25. Bc7 Bxh3 26. Bxb8 Bd7 27. Nb6 Qxb8 28. Nxd7 Nxd7 29. Qxb7 Qe8 30. Qxa6 Nc5 31. Qe2 Rf4 32. f3 Bh4 33. Red1 Bg3 34. Qe3 Qh5 35. Kf1 Qh1+ 36. Ke2 Qxg2+ 37. Qf2 Qxf2# 0-1
2023.08.08 Titled Tue 8th Aug Early
857818 Koellner, Ruben Gideon (2478) Martins, Bruno Andre Leite (2346) 0-1
1. Nf3 d5 2. d4 c5 3. e3 Nc6 4. c3 Bf5 5. dxc5 e6 6. b4 a5 7. Bb5 Qc7 8. Bb2 Be7 9. O-O Bf6 10. Nd4 Bg6 11. a3 Ne7 12. Nd2 e5 13. N4f3 h5 14. c4 Rd8 15. Qb3 d4 16. exd4 exd4 17. Rfe1 O-O 18. Ne4 Bxe4 19. Rxe4 Nf5 20. Rd1 Rfe8 21. Rxe8+ Rxe8 22. Qd3 g6 23. Qd2 axb4 24. axb4 Re4 25. Ba4 Ne5 26. Nxe5 Bxe5 27. g3 h4 28. Bc2 Rg4 29. Bxf5 gxf5 30. Qe2 hxg3 31. fxg3 Bxg3 32. Kh1 Be5 33. Rg1 Rxg1+ 34. Kxg1 d3 35. Qxe5 Qxe5 36. Bxe5 d2 37. Bg3 d1=Q+ 38. Kg2 Qc2+ 39. Kh3 Qxc4 40. b5 Qxb5 41. Bd6 Qc6 42. Kh4 Kg7 43. Kg5 Qe4 44. h3 Kg8 45. Kf6 Qe6+ 46. Kg5 f4 47. Kxf4 Qxh3 48. Ke5 Qd7 49. Kf6 Qc6 50. Kg5 Qd5+ 51. Be5 Qe6 52. Bd6 Kh7 53. Kf4 Kg6 54. Kf3 Kf5 55. Kg3 Qe4 56. Kf2 Kg4 57. Kf1 Qc2 58. c6 Kf3 59. cxb7 Qd2 60. b8=Q Qd1# 0-1
2023.08.07 Erkenschwick Jubilee 2023
836176 Koellner, Ruben Gideon (2478) Spriestersbach, Kai (2167) 1-0
1. d4 Nf6 2. Nc3 d5 3. Bf4 g6 4. Qd2 Bg7 5. Bh6 O-O 6. h4 Bf5 7. Bxg7 Kxg7 8. f3 h5 9. O-O-O c5 10. dxc5 Qa5 11. Nxd5 Qxa2 12. Qc3 Rd8 13. e4 Be6 14. Bc4 Qa1+ 15. Kd2 Qa4 16. Ne2 Na6 17. b3 Qa3 18. Bxa6 Qxa6 19. Nf4 Kg8 20. Ke3 Bxd5 21. Nxd5 Nxd5+ 22. Rxd5 e6 23. Rd3 Rxd3+ 24. cxd3 Qa2 25. Rg1 a5 26. f4 a4 27. bxa4 Rxa4 28. Qd2 Qb3 29. Rc1 e5 30. fxe5 Qe6 31. Qc2 Ra3 32. Qb2 Ra2 33. Qd4 Rxg2 34. Qd8+ Kh7 35. Qd5 Qh3+ 36. Kd4 Qf3 37. Qxb7 Rg3 38. Rc3 Qf2+ 39. Kd5 Qa2+ 40. Qb3 Qa5 41. Kd4 Qa7 42. Qb5 g5 43. hxg5 Rxg5 44. Rc1 h4 45. Qe8 Rg8 46. Qb5 Rg5 47. Rf1 Qc7 48. c6 h3 49. Rh1 Rh5 50. Rh2 Kg8 51. Ke3 Rxe5 52. Qb7 Qxb7 53. cxb7 Rb5 54. Rxh3 Rxb7 55. Kd4 Kf8 56. Ke5 Ke7 57. d4 Rb1 58. Rh6 Rg1 59. d5 Rg5+ 60. Kd4 Rg4 61. Ke3 f6 62. Rh7+ Kd6 63. Rf7 Rg6 64. Kd4 Rh6 65. Rxf6+ 1-0
2023.08.06 Erkenschwick Jubilee 2023
836171 Willemze, T (2371) Koellner, Ruben Gideon (2478) 0-1
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. Bxc6 dxc6 7. h3 Qe7 8. d3 Nd7 9. Ne2 Re8 10. Ng3 Nf8 11. Be3 f6 12. Qd2 Ng6 13. Qc3 Bb4 14. Qb3+ Be6 15. c4 b5 16. Nf5 Qf8 17. Qc2 bxc4 18. d4 Bf7 19. dxe5 Nxe5 20. Nxe5 Rxe5 21. Bf4 Ree8 22. Bxc7 g6 23. Ng3 Qe7 24. Bf4 Rad8 25. Rad1 Bc5 26. Qc3 Rxd1 27. Rxd1 Rd8 28. Qc2 Bd4 29. Qe2 c5 30. Rc1 Qb7 31. Rc2 Re8 32. Kh2 h5 33. h4 Qe7 34. Qf3 f5 35. exf5 Qxh4+ 36. Kg1 Re1+ 37. Nf1 Qg4 38. Rc1 Qxf3 39. gxf3 Rxc1 40. Bxc1 gxf5 41. Ng3 c3 42. bxc3 Bxc3 43. a3 c4 44. Ne2 Be5 45. f4 Ba1 46. Bd2 Bb2 47. Bb4 Be8 48. Kg2 Kf7 49. Kg3 Ke6 50. Bc5 a6 51. Kf3 Bc6+ 52. Kg3 Kd5 0-1
2023.08.05 Erkenschwick Jubilee 2023
836167 Koellner, Ruben Gideon (2478) Krastev, Alexander (2411) 1/2-1/2
1. d4 e6 2. Nf3 c5 3. e3 Nf6 4. Bd3 d5 5. b3 cxd4 6. exd4 Bd6 7. Nbd2 O-O 8. Bb2 b6 9. O-O Ba6 10. c4 Nc6 11. Re1 Rc8 12. Ne5 dxc4 13. Nxc6 Rxc6 14. bxc4 Rc8 15. Qe2 Bb7 16. Rac1 Re8 17. Bb1 Bf4 18. Red1 1/2-1/2
2023.08.04 Erkenschwick Jubilee 2023
836160 De Winter, Arthur (2360) Koellner, Ruben Gideon (2478) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 g6 6. Be3 Bg7 7. dxe5 dxe5 8. g4 O-O 9. Qd3 c6 10. O-O-O Qa5 11. Nd2 Qc7 12. g5 Nh5 13. Nc4 b5 14. Qd6 Qxd6 15. Nxd6 Nb6 16. a3 Be6 17. Nb7 Nd7 18. Be2 Rfe8 19. Bxh5 gxh5 20. Nd6 Reb8 21. Nf5 Bf8 22. Ne2 Nc5 23. Neg3 b4 24. axb4 Rxb4 25. Nxh5 Nxe4 26. Nh6+ Kh8 27. f3 Ra4 28. fxe4 Bxh6 29. b3 Ra1+ 30. Kb2 Rxd1 31. Rxd1 Bf8 32. Nf6 Be7 33. h4 Kg7 34. Nh5+ Kf8 35. Ng3 a5 36. Nf5 a4 37. bxa4 Rxa4 38. Bc5 Bxf5 39. Rd8+ Kg7 40. Bxe7 Bxe4 41. h5 f6 42. Bxf6+ Kf7 43. Rd7+ Ke6 44. Re7+ Kd6 45. Rxe5 Bd5 46. Re7 Rb4+ 47. Kc3 Rc4+ 48. Kd2 Rh4 49. Rxh7 Be4 50. g6 Rh2+ 51. Ke3 Bxc2 52. Rh8 Bb3 53. g7 Bf7 54. h6 Ke6 55. Ba1 Rh3+ 56. Kf2 Rh2+ 57. Kg3 Rh1 58. h7 Rxa1 59. g8=Q Rg1+ 60. Kf2 1-0
2023.08.01 Titled Tue 1st Aug Early
865380 Waldhausen Gordon, Frederick (2253) Koellner, Ruben Gideon (2478) 1/2-1/2
1. Nf3 Nf6 2. g3 d5 3. Bg2 Nbd7 4. O-O c6 5. d4 e6 6. b3 Bd6 7. Bb2 O-O 8. c4 Ne4 9. Nbd2 f5 10. Ne1 a5 11. f3 Nxd2 12. Qxd2 f4 13. gxf4 Bxf4 14. e3 Bd6 15. f4 a4 16. Nd3 Nf6 17. c5 Bc7 18. Qe2 axb3 19. axb3 Rxa1 20. Rxa1 Bd7 21. Ne5 Be8 22. Bf3 Bg6 23. Nxg6 hxg6 24. Qg2 Kf7 25. Bc3 Rh8 26. Be1 Qb8 27. b4 b6 28. Qc2 b5 29. Ra6 g5 30. Rxc6 gxf4 31. exf4 Qb7 32. Rxc7+ Qxc7 33. Bg3 Qa7 34. Qd3 Qa1+ 35. Kg2 Qb2+ 36. Bf2 Qxb4 37. f5 exf5 38. Qxf5 Qc4 39. Bg4 Re8 40. Bh5+ Kf8 41. Bxe8 Kxe8 42. Qe6+ Kf8 43. c6 b4 44. Qd6+ Kf7 45. c7 b3 46. Qd8 b2 47. c8=Q Qxc8 48. Qxc8 b1=Q 49. Qc7+ Kg6 50. Qg3+ Kh7 51. Qh3+ Kg8 52. Qc8+ Kf7 53. Qc7+ Kg6 54. Qg3+ Kf5 55. Qxg7 Qe4+ 56. Kg1 Qb1+ 57. Kg2 Qe4+ 58. Kg1 Qb1+ 59. Kg2 1/2-1/2
2023.08.01 Titled Tue 1st Aug Early
865736 Koellner, Ruben Gideon (2478) Rodriguez Fontecha, M (2309) 1-0
1. d4 Nf6 2. Nf3 d6 3. Nbd2 g6 4. e4 Bg7 5. Bc4 O-O 6. O-O Nxe4 7. Nxe4 d5 8. Bd3 dxe4 9. Bxe4 c6 10. c3 Bg4 11. h3 Bxf3 12. Qxf3 Nd7 13. Re1 Nf6 14. Bc2 Qd7 15. Bf4 Rfe8 16. Bb3 e6 17. h4 h5 18. Bc2 Ng4 19. Rad1 Qd5 20. Qxd5 cxd5 21. f3 Nf6 22. Kf2 a6 23. a3 b5 24. Bd3 Rec8 25. Rh1 Ra7 26. Rdg1 Rb7 27. g4 a5 28. Be5 hxg4 29. fxg4 Ne4+ 30. Bxe4 dxe4 31. Bxg7 Kxg7 32. Ke3 b4 33. axb4 axb4 34. Rc1 bxc3 35. bxc3 Rb3 36. Kd2 f5 37. h5 f4 38. h6+ Kf6 39. h7 Kg7 40. Rc2 Rh8 41. Ra1 Kxh7 42. g5 Rhb8 43. Rf1 Rf8 44. Ra2 Rf5 45. Ra7+ Kg8 46. Ra8+ Kf7 47. Rh1 Ke7 48. Rh7+ Kd6 49. Ra6+ Kd5 50. Rd7+ Kc4 51. Rc7+ Kb5 52. Rxe6 Rb2+ 53. Kc1 Rh2 54. Rxe4 f3 55. Re1 f2 56. Rf1 Rg2 57. Kd2 Rgxg5 58. Rc8 Rg1 59. Ke2 Rxf1 60. Kxf1 Rf3 61. Rc5+ Ka4 62. d5 Kb3 63. d6 Rd3 64. Rc6 g5 65. Kxf2 Ka4 66. c4 Kb4 67. c5 Kb5 68. Rc7 Rd5 69. d7 g4 70. c6 Rf5+ 71. Kg3 Rd5 72. Rc8 1-0
2023.08.01 Titled Tue 1st Aug Early
865983 Ostensen, Nicolai Maxime (2216) Koellner, Ruben Gideon (2478) 0-1
1. e4 d6 2. b3 Nf6 3. d3 e5 4. Bb2 Be7 5. Nd2 c5 6. g3 Nc6 7. Bg2 a5 8. a4 Be6 9. Ne2 Nd4 10. Nc3 O-O 11. O-O Qd7 12. Nd5 Bg4 13. Nxf6+ Bxf6 14. f3 Be6 15. Nc4 Bxc4 16. bxc4 g6 17. Bxd4 cxd4 18. Qb1 Bg5 19. f4 Bh6 20. h3 Qe7 21. f5 Qc7 22. Qb5 Bd2 23. Rab1 Bb4 24. h4 Ra6 25. Qd5 Rc6 26. fxg6 hxg6 27. Rf6 Kg7 28. Rbf1 Qe7 29. h5 gxh5 30. c5 Qxf6 31. Rxf6 Kxf6 32. cxd6 Rxd6 33. Qxb7 Rg8 34. Kh2 Be1 35. Qc7 Bxg3+ 36. Kh1 Ra6 37. c3 dxc3 38. Qxc3 Bf2 39. Qd2 Bd4 40. Qh6+ Rg6 41. Qxh5 Kg7 42. Qf5 Raf6 43. Qc8 Rh6+ 44. Bh3 Rh8 45. Qg4+ Rg6 46. Qf5 Rg3 47. Kh2 Rhxh3+ 48. Qxh3 Rxh3+ 49. Kxh3 Kf6 50. Kg4 Ke6 51. Kg5 Kd6 52. Kf6 Kc5 53. Kxf7 Kb4 54. Ke6 Kxa4 55. Kd5 Kb3 56. Kc6 a4 57. Kb5 a3 58. Ka5 a2 59. Kb5 a1=Q 60. Kc6 Qa6+ 61. Kd5 Qb5+ 62. Ke6 Qxd3 63. Kd6 Qxe4 64. Kd7 Qd5+ 65. Kc7 Qe6 66. Kb7 Qb6+ 67. Kc8 Qa7 68. Kd8 Kc4 69. Ke8 Kd5 70. Kd8 Ke6 71. Kc8 e4 72. Kd8 e3 73. Kc8 e2 74. Kd8 e1=Q 75. Kc8 Kd6 76. Kd8 Qee7+ 77. Kc8 Qab7# 0-1
2023.08.01 Titled Tue 1st Aug Early
866220 Koellner, Ruben Gideon (2478) Hakobyan, Aram (2612) 1-0
1. d4 g6 2. Nf3 Bg7 3. Nbd2 Nf6 4. e4 O-O 5. c3 d6 6. Bc4 e6 7. O-O b6 8. Re1 Bb7 9. Qe2 Nbd7 10. Bd3 Re8 11. e5 dxe5 12. dxe5 Ng4 13. Be4 Bxe4 14. Nxe4 Ndxe5 15. Nxe5 Nxe5 16. Bg5 Qd3 17. Rad1 Qxe2 18. Rxe2 f5 19. Nf6+ Bxf6 20. Bxf6 Nf7 21. Rd7 Rac8 22. f4 h6 23. h4 e5 24. fxe5 Re6 25. Red2 Kf8 26. R2d5 Ke8 27. Rxf7 Kxf7 28. Rd7+ Ke8 29. Rg7 g5 30. h5 f4 31. Rh7 c5 32. Rxh6 Rc7 33. Rh8+ Kd7 34. Rh7+ Kc6 35. Rxc7+ Kxc7 36. h6 Re8 37. h7 g4 38. h8=Q Rxh8 39. Bxh8 Kd7 40. Kf2 Ke6 41. Bg7 c4 42. Bf6 b5 43. a3 a5 44. Bg7 a4 45. Bh8 Kf5 46. g3 f3 47. Ke3 Ke6 48. Bg7 Kf5 49. Bf8 Kxe5 50. Bc5 Kf5 51. Bd6 Ke6 52. Bb8 Kf5 53. Bc7 Ke6 54. Bb6 Kf5 55. Kd2 Ke4 56. Bf2 Kf5 57. Ke3 Ke5 58. Bg1 Kf5 59. Kd4 Kf6 60. Ke4 Kg5 61. Ke5 Kg6 62. Kf4 Kf6 63. Kxg4 f2 64. Bxf2 Ke5 65. Bd4+ Ke4 66. Bc5 Kd3 67. Bb4 Kc2 68. Kf4 1-0
2023.08.01 Titled Tue 1st Aug Early
866458 Ter Sahakyan, S (2609) Koellner, Ruben Gideon (2478) 0-1
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 c6 6. g4 h6 7. Be3 b5 8. a3 a6 9. h4 g6 10. g5 hxg5 11. hxg5 Nh5 12. Qd2 Bb7 13. O-O-O Qc7 14. Bh3 Rd8 15. dxe5 Nxe5 16. Nxe5 dxe5 17. Qxd8+ Qxd8 18. Rxd8+ Kxd8 19. Rd1+ Kc7 20. Rd7+ Kb8 21. Rxf7 Nf4 22. Bxf4 exf4 23. e5 Bc5 24. Ne4 Bf8 25. e6 c5 26. Bg2 Bd5 27. e7 Bxf7 28. exf8=Q+ Rxf8 29. Nxc5 Ka7 30. Be4 Re8 31. f3 Re5 32. Nd3 Rxg5 33. Nxf4 Rg1+ 34. Kd2 g5 35. Nd3 Bh5 36. Ne5 Kb6 37. c4 Kc5 38. Kc3 bxc4 39. Nd7+ Kd6 40. Nb6 Rc1+ 41. Kd4 Bf7 42. a4 Be6 43. a5 Rd1+ 44. Kc3 Rc1+ 45. Kd4 Ra1 46. Nxc4+ Bxc4 47. Kxc4 Rxa5 48. b4 Re5 49. Bb7 a5 50. bxa5 Rxa5 51. Kd4 Ra4+ 52. Ke3 Ke5 53. Bc6 Ra3+ 54. Kf2 Kf4 55. Kg2 Ra2+ 56. Kf1 Ke3 57. Kg1 Rf2 58. Bd5 Rd2 59. Bc6 Kf4 60. Bb7 Kg3 61. Kf1 Rf2+ 62. Kg1 Rb2 0-1
2023.08.01 Titled Tue 1st Aug Early
866682 Koellner, Ruben Gideon (2478) Jenetl, R (2435) 1-0
1. d4 g6 2. Nf3 Bg7 3. Nbd2 d5 4. e3 Nf6 5. b4 O-O 6. c4 Bg4 7. Bb2 e6 8. Be2 Nbd7 9. h3 Bxf3 10. Nxf3 c6 11. O-O Ne4 12. a4 a6 13. Qc2 h5 14. b5 axb5 15. axb5 Qf6 16. cxd5 exd5 17. bxc6 bxc6 18. Bd3 Rxa1 19. Rxa1 Rb8 20. Ra6 Rb6 21. Rxb6 Nxb6 22. Bxe4 dxe4 23. Qxe4 c5 24. Qe8+ Bf8 25. Ba3 Kg7 26. Bxc5 Bxc5 27. dxc5 Nc4 28. Qe4 Qc3 29. Qd4+ Qxd4 30. exd4 Kf6 31. Kf1 Ke6 32. Ke2 Kd5 33. Kd3 Nb2+ 34. Kc2 Nc4 35. Kc3 f6 36. Nd2 Na3 37. Nb3 g5 38. Kb4 Nc2+ 39. Kb5 Na3+ 40. Kb6 Nc4+ 41. Kc7 Na3 42. Kd7 Kc4 43. c6 Nb5 44. c7 Na7 45. c8=Q+ Nxc8 46. Kxc8 f5 47. Kd7 f4 48. f3 Kd3 49. d5 Ke2 50. Ke6 g4 51. hxg4 hxg4 52. fxg4 Kf2 53. Nd4 Kxg2 54. g5 Kg3 55. g6 f3 56. Nxf3 Kxf3 57. g7 1-0
2023.08.01 Titled Tue 1st Aug Early
866852 Baskakov, Egor (2215) Koellner, Ruben Gideon (2478) 1-0
1. e4 d6 2. g3 e5 3. Bg2 Nf6 4. Ne2 Be7 5. h3 c5 6. O-O Nc6 7. c3 O-O 8. d4 b5 9. Be3 Bb7 10. Nd2 a5 11. Re1 Re8 12. f4 Bf8 13. fxe5 dxe5 14. d5 Nb8 15. c4 b4 16. g4 h6 17. Ng3 g6 18. Rf1 Nh7 19. Nf3 Ra6 20. Qd2 g5 21. Nf5 Nd7 22. Qf2 Ndf6 23. Nd2 Qc7 24. Qg3 Bc8 25. h4 Bxf5 26. Rxf5 gxh4 27. Qxh4 Nd7 28. Raf1 f6 29. Qh5 Re7 30. Nf3 Ng5 31. Nh4 Bg7 32. R5f2 Qd8 33. Nf5 Rf7 34. Kh2 Qe8 35. Rh1 Rf8 36. Qh4 Qg6 37. Ne7+ Kf7 38. Nxg6 Kxg6 39. Qh5+ Kh7 40. Rhf1 Kg8 41. Bxg5 hxg5 42. Bf3 Rf7 43. Kg2 Nf8 44. Rh1 Rfa7 45. Bd1 a4 46. Rf3 a3 47. bxa3 Rxa3 48. Rxa3 Rxa3 49. Bb3 Ra5 50. Qe8 Ra7 51. d6 Rd7 52. Rd1 Bh6 53. Ba4 Ra7 54. d7 Rxa4 55. d8=Q Rxa2+ 56. Kf1 Rh2 57. Rd7 Rh1+ 58. Kg2 Rh4 59. Qf7+ Kh8 60. Qh7# 1-0
2023.08.01 Titled Tue 1st Aug Early
866978 Koellner, Ruben Gideon (2478) Pichot, A (2642) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O a6 7. Bb3 b5 8. Re1 Bb7 9. e5 Nd5 10. e6 f5 11. Ng5 c5 12. dxc5 dxc5 13. c4 Nb4 14. Nf7 Qd4 15. Nf3 Qxd1 16. Rxd1 N8c6 17. a3 Na5 18. Ba4 bxa4 19. axb4 Nxc4 20. bxc5 a3 21. Bg5 axb2 22. Ra4 Bd5 23. Nh6+ Kh8 24. Nf7+ Kg8 25. Nh6+ Bxh6 26. Bxh6 Rfb8 27. Rb1 Be4 28. Rxc4 Bxb1 29. c6 Bd3 30. c7 Bxc4 31. cxb8=Q+ Rxb8 0-1
2023.08.01 Titled Tue 1st Aug Early
867259 Koellner, Ruben Gideon (2478) Krzyzanowski, M (2512) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 c6 7. a4 Bf5 8. Bb2 Nbd7 9. Be2 Ne4 10. O-O Re8 11. Nxe4 dxe4 12. Nd2 h5 13. h3 Nf6 14. b5 h4 15. a5 a6 16. bxc6 bxc6 17. Qa4 Qc8 18. Rfb1 g5 19. Ba3 g4 20. hxg4 Bxg4 21. Qd1 Qf5 22. Bxg4 Nxg4 23. Qe2 Rad8 24. Rb6 e5 25. d5 cxd5 26. cxd5 Rxd5 27. Rb4 Nf6 28. Nf1 h3 29. Ng3 Qg6 30. gxh3 Red8 31. Rb2 Nh5 32. Qxh5 Qc6 33. Rbb1 Rxa5 34. Be7 Rxa1 35. Rxa1 Re8 36. Bg5 Re6 37. Nf5 Bf8 38. Rd1 Rg6 39. Rd8 Qf6 40. Qxg6+ Qxg6 41. Ne7+ Kg7 42. Nxg6 fxg6 43. Bh6+ Kxh6 44. Rxf8 Kg5 45. Ra8 Kh4 46. Kg2 g5 47. Rxa6 g4 48. hxg4 Kg5 49. Re6 Kh4 50. Rh6+ Kg5 51. Rh5+ Kxg4 52. Rh8 Kg5 53. Kg3 Kf5 54. Rh5+ Kf6 55. Rh4 1-0
2023.08.01 Titled Tue 1st Aug Early
867415 Remizov, Yaroslav (2440) Koellner, Ruben Gideon (2478) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. O-O h6 8. h3 Qc7 9. Re1 Nf8 10. d5 g5 11. a5 Ng6 12. a6 b5 13. Bf1 b4 14. Ne2 Nxe4 15. dxc6 O-O 16. Ned4 Nxf2 17. Kxf2 exd4 18. Nxd4 d5 19. Kg1 Bc5 20. Be3 Qg3 21. Bf2 Qf4 22. g3 Qf6 23. Bg2 Be6 24. Qd2 Ne5 25. Rf1 Nc4 26. Qd3 Nxb2 27. Qd2 Nc4 28. Qd1 Rae8 29. Nxe6 Bxf2+ 30. Rxf2 Qxe6 31. Bxd5 Qxh3 32. Bxc4 Qxg3+ 33. Rg2 Qe3+ 34. Kh1 Qh3+ 35. Rh2 Qe3 36. Bd5 Rd8 37. Qf3 Qe5 38. Rd1 Rd6 39. Rf2 Kg7 40. Qf5 1-0
2023.08.01 Titled Tue 1st Aug Early
867605 Koellner, Ruben Gideon (2478) Bazilius, Augustinas (2052) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 dxc4 7. Bxc4 b6 8. Bb2 Bb7 9. O-O Ne4 10. Nxe4 Bxe4 11. b5 c6 12. a4 a6 13. Nd2 Bd5 14. Bxd5 cxd5 15. bxa6 Rxa6 16. Qb3 Nd7 17. Qxd5 Nf6 18. Qxd8 Rxd8 19. Ra2 Rda8 20. Rfa1 Nd5 21. a5 Rxa5 22. Rxa5 Rxa5 23. Rxa5 bxa5 24. Kf1 f5 25. Nc4 a4 26. Ke2 Kf7 27. Kd3 Nb4+ 28. Kc3 Nd5+ 29. Kc2 Nb4+ 30. Kd2 g5 31. Nb6 e6 32. Nxa4 Nd5 33. Ba3 Nf6 34. Ke2 f4 35. Bd6 fxe3 36. fxe3 Ne4 37. Bb4 h5 38. Nc5 Nxc5 39. Bxc5 Bf6 40. Kd3 Bd8 41. Bd6 Ke8 42. Ke4 Kf7 43. h3 Ba5 44. Be5 Bc3 45. Bc7 Ba1 46. Bd8 g4 47. hxg4 hxg4 48. Kf4 Bc3 49. Kxg4 Ke8 50. Bf6 Kf7 51. Be5 Bd2 52. Kf3 Be1 53. g4 Bh4 54. Ke4 Bg5 55. Bf4 Bf6 56. Kd3 Be7 57. e4 Kf6 58. d5 exd5 59. exd5 Kf7 60. Ke4 Kf6 61. d6 Bd8 62. Kd5 Kf7 63. Be5 Kg6 64. Bf4 Kf6 65. Be3 Kf7 66. Ke5 Ke8 67. Ke6 Bh4 68. d7+ Kd8 69. Bb6# 1-0
2023.08.01 Titled Tue 1st Aug Late
867829 Koellner, Ruben Gideon (2478) Baches Garcia, G (2327) 1/2-1/2
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nbd7 6. Ne5 Bd6 7. f4 O-O 8. Bd3 b6 9. O-O Bb7 10. Qf3 Qe7 11. g4 Ne8 12. g5 a5 13. Bxh7+ Kxh7 14. Qh5+ Kg8 15. Rf3 g6 16. Qh6 Bxe5 17. Rh3 f5 18. Qxg6+ Ng7 19. fxe5 f4 20. Nf3 fxe3 21. Bxe3 cxd4 22. cxd4 Rf5 23. Nh4 Raf8 24. Nxf5 Rxf5 25. Rf1 Nf8 26. Qh6 Rxf1+ 27. Kxf1 Qf7+ 28. Qf6 Nd7 29. Qxf7+ Kxf7 30. Rh7 Nf8 31. Rh6 Ba6+ 32. Kf2 Bd3 33. Rf6+ Ke7 34. h4 Ng6 35. Kg3 Nh5+ 36. Kg4 Nxf6+ 37. exf6+ Kf7 38. Kg3 Be2 39. Bd2 a4 40. Bb4 b5 41. Bd6 Bd1 42. a3 Be2 43. Bc7 Bd1 44. Ba5 Be2 45. Be1 Bd1 46. Bd2 Be2 47. Bc3 Bd1 48. Be1 Be2 49. Kf2 Bd1 50. Ke3 Nf8 51. Bg3 Nd7 52. Kd2 Kg6 53. Kc3 Be2 54. Kd2 Bc4 55. Bd6 Bf1 56. h5+ Kxh5 57. f7 Kxg5 58. f8=Q Nxf8 59. Bxf8 Kf5 60. Bg7 Ke4 61. Be5 Bc4 62. Kc3 Bb3 63. Kb4 Bc4 64. Kc5 Kf5 65. Kd6 Bd3 66. Kc6 Bc4 67. Kc5 Ke4 68. Kb4 Kf5 69. Kc3 Ke4 70. Kd2 Kf5 71. Ke3 Bb3 72. Bc7 Bc4 73. Ba5 Bb3 74. Bc7 Bc4 75. Be5 Bb3 76. Bd6 Bc4 77. Be5 1/2-1/2
2023.07.25 Titled Tue 25th Jul Early
872884 Melikhov, E (2252) Koellner, Ruben Gideon (2453) 1-0
1. d4 d6 2. e4 Nf6 3. Bd3 e5 4. d5 Be7 5. c4 c6 6. Nc3 O-O 7. h3 a6 8. Nf3 b5 9. a3 Bb7 10. O-O bxc4 11. Bxc4 Nbd7 12. b4 Nb6 13. Bb3 cxd5 14. Nxd5 Nxe4 15. Nxe7+ Qxe7 16. Bb2 Rac8 17. Qd3 Nf6 18. Rad1 Rfd8 19. Rfe1 Qc7 20. Ng5 Bd5 21. Bxd5 Nbxd5 22. Nxh7 Nxh7 23. Qxd5 Nf6 24. Qd3 Qc2 25. Re2 Qxd3 26. Rxd3 Kf8 27. g4 Ke7 28. f4 Nd7 29. fxe5 dxe5 30. Bxe5 Nxe5 31. Rxe5+ Kf6 32. Rf5+ Kg6 33. Rdf3 f6 34. Rc5 Rxc5 35. bxc5 Rd1+ 36. Rf1 Rd3 37. Rc1 Rd7 38. c6 Rc7 39. Kf2 Kf7 40. Kf3 Ke6 41. Ke4 g6 42. h4 Kd6 43. h5 gxh5 44. gxh5 Re7+ 45. Kf5 Kc7 46. Kxf6 Re3 47. h6 Rxa3 48. Rh1 Rf3+ 49. Ke7 Re3+ 50. Kf7 Rf3+ 51. Ke6 Re3+ 52. Kd5 Rd3+ 53. Kc4 Rd8 54. h7 Rh8 55. Kc5 a5 56. Rb1 a4 57. Rb7+ Kc8 58. Kb6 a3 59. Ra7 1-0
2023.07.25 Titled Tue 25th Jul Early
872984 Koellner, Ruben Gideon (2453) Willy, Stephen (2186) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Ne5 Nbd7 5. g4 Be4 6. f3 Bg6 7. h4 h6 8. Nxg6 fxg6 9. Bd3 Kf7 10. f4 e6 11. Nd2 c5 12. c3 Bd6 13. Qf3 Rf8 14. g5 Ng8 15. h5 hxg5 16. hxg6+ Ke7 17. Rh7 gxf4 18. Rxg7+ Ke8 19. Qh3 Qf6 20. Rf7 Rxf7 21. gxf7+ Kxf7 22. Nf3 Rf8 23. exf4 Bxf4 24. Bxf4 Qxf4 25. Ke2 Ngf6 26. Rf1 c4 27. Ne5+ Nxe5 28. Rxf4 cxd3+ 29. Kd1 Nc4 30. b3 Nd6 31. Qh7+ Ke8 32. Qc7 Nfe4 33. Qb8+ Kd7 34. Rxf8 Nxc3+ 35. Kd2 1-0
2023.07.25 Titled Tue 25th Jul Early
873376 Bendayan Claros, A (2271) Koellner, Ruben Gideon (2453) 0-1
1. d4 d6 2. Nf3 Nf6 3. Nbd2 Nbd7 4. e4 e5 5. c3 Be7 6. Be2 O-O 7. O-O c6 8. Re1 Qc7 9. Bd3 Re8 10. Nf1 Nf8 11. h3 Ng6 12. Ng3 Bf8 13. Bf1 Bd7 14. a4 Rad8 15. a5 Bc8 16. Bg5 Be7 17. Qd2 h6 18. Be3 Bf8 19. Qc2 b6 20. axb6 axb6 21. Ra8 d5 22. dxe5 Nxe4 23. Rea1 Nxg3 24. fxg3 Nxe5 25. Nxe5 Qxe5 26. Bf4 Qf6 27. R8a7 Bf5 28. Bd3 Bxd3 29. Qxd3 Bc5+ 30. Kh2 Re6 31. Rf1 Qg6 32. Qf3 Rde8 33. b4 Be7 34. b5 Qe4 35. bxc6 Qxf3 36. Rxf3 Rxc6 37. Rd3 Bf6 38. Rxd5 Bxc3 39. Rb7 Rf6 40. h4 Bb4 41. Rd3 Bc5 42. Rdd7 Rf8 43. Kh3 Re6 44. Kg4 Rg6+ 45. Kh3 Rf6 46. Rdc7 Kh7 47. Rd7 Kg6 48. Kg4 h5+ 49. Kh3 Re8 50. Bg5 Rf1 51. Kh2 Ree1 52. g4 hxg4 53. Rbc7 Bg1+ 54. Kg3 Re4 0-1
2023.07.25 Titled Tue 25th Jul Early
873459 Koellner, Ruben Gideon (2453) Ljubarov, M (2305) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. c3 e6 5. Nbd2 Nbd7 6. Ne5 Bd6 7. f4 O-O 8. Bd3 g6 9. Qf3 Nh5 10. h4 f5 11. g4 fxg4 12. Qxg4 Nxe5 13. dxe5 d4 14. exd6 dxe3 15. Ne4 Rxf4 16. Qg5 Qxg5 17. hxg5 c4 18. Bc2 b5 19. Bxe3 Rg4 20. Rxh5 gxh5 21. Nf6+ Kg7 22. Nxg4 hxg4 23. Kf2 Bb7 24. Kg3 Rf8 25. Bd4+ Kg8 26. Bf6 Rf7 27. Rd1 Rd7 28. Kxg4 a5 29. Kf4 b4 30. Ke5 Bf3 31. Rd2 Bg4 32. Ba4 Rf7 33. d7 Rf8 34. d8=Q Rxd8 35. Rxd8+ Kf7 36. Be8+ 1-0
2023.07.25 Titled Tue 25th Jul Early
873872 Koellner, Ruben Gideon (2453) Mousavi, Se (2492) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 cxd4 5. exd4 b6 6. c3 Bb7 7. Bd3 Bd6 8. O-O Bc7 9. Re1 O-O 10. h3 Re8 11. Ne5 d6 12. Nef3 Nbd7 13. Ne4 Nxe4 14. Bxe4 Bxe4 15. Rxe4 d5 16. Re1 b5 17. a3 a5 18. Bd2 Rb8 19. Qe2 Bd6 20. Rec1 a4 21. Re1 Qc7 22. Rad1 Qc6 23. Qd3 Qc4 24. Bc1 Qxd3 25. Rxd3 Rec8 26. g3 Nb6 27. Kg2 Nc4 28. Re2 h6 29. Nd2 Rc6 30. f4 Rbc8 31. Nxc4 bxc4 32. Rde3 g6 33. Kf3 Kg7 34. Re1 Rb6 35. R3e2 Rcb8 36. g4 Rh8 37. f5 exf5 38. gxf5 gxf5 39. Re8 Rxe8 40. Rxe8 Rb8 41. Re2 Bc7 42. Re7 Bd6 43. Rd7 Rb6 44. Ra7 Bh2 45. Rxa4 f4 46. Kg2 Bg3 47. Ra5 Re6 48. Kf3 Bh2 49. Rxd5 Re1 50. Bxf4 Rf1+ 51. Kg2 Rxf4 52. Kxh2 Rf2+ 53. Kg3 Rxb2 54. Rc5 Rb3 55. Rxc4 Rxa3 56. d5 Kf6 57. Kf4 Ra1 58. Rd4 Rf1+ 59. Ke3 Re1+ 60. Kd3 Ke5 61. Kc4 Kd6 62. Rf4 Re7 63. Kd4 Ra7 64. Rf6+ Ke7 65. Rxh6 Ra4+ 66. c4 Ra3 67. Rh4 Ra1 68. Re4+ Kd7 69. Rf4 Rd1+ 70. Kc5 Ke7 71. d6+ Ke6 72. Re4+ Kf6 73. Rd4 Ra1 74. d7 1-0
2023.07.25 Titled Tue 25th Jul Early
873976 Bernadskiy, V (2545) Koellner, Ruben Gideon (2453) 1-0
1. d4 d6 2. e4 Nf6 3. f3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Ke8 7. Be3 Nbd7 8. Nd2 Bc5 9. Kf2 Ke7 10. Ne2 Bxe3+ 11. Kxe3 Nc5 12. a4 a5 13. Nc1 Be6 14. Nd3 Nxd3 15. cxd3 Rhd8 16. Rhc1 c6 17. Bxe6 Kxe6 18. Nb3 Nd7 19. d4 f6 20. Rc3 Ke7 21. Rd1 exd4+ 22. Rxd4 Ne5 23. Rxd8 Kxd8 24. Nc5 Kc8 25. Ne6 Kd7 26. Nc5+ Kc7 27. f4 Nd7 28. Ne6+ Kb6 29. Rb3+ Ka7 30. Rd3 Nb6 31. Nxg7 Rg8 32. Nh5 Rxg2 33. Nxf6 Nc4+ 34. Kf3 Rxh2 35. e5 Nd2+ 36. Rxd2 Rxd2 37. e6 Rd3+ 38. Ke4 Rd1 39. Ke5 Re1+ 40. Ne4 Rg1 41. f5 Kb6 42. e7 Rg8 43. f6 1-0
2023.07.25 Titled Tue 25th Jul Early
874151 Indjic, A (2619) Koellner, Ruben Gideon (2453) 1-0
1. e4 d6 2. f4 Nf6 3. Nc3 e5 4. Nf3 exf4 5. Bc4 Nh5 6. d4 g6 7. Nd5 Bh6 8. g3 Be6 9. Bb3 Bxd5 10. Bxd5 c6 11. Bb3 O-O 12. g4 Ng7 13. h4 Ne6 14. g5 Bg7 15. c3 a5 16. a3 Qe7 17. Qe2 Nd7 18. Bd2 b5 19. O-O-O b4 20. h5 bxa3 21. hxg6 fxg6 22. Qh2 axb2+ 23. Kb1 Rfb8 24. Ba2 Nf8 25. Bxf4 d5 26. Bxb8 Nxd4 27. Nxd4 Qxe4+ 28. Nc2 Bxc3 29. Bd6 Ra7 30. Bxf8 Kxf8 31. Qb8+ Qe8 32. Qxa7 Qe7 33. Qb8+ Qe8 34. Rdf1+ 1-0
2023.07.25 Titled Tue 25th Jul Early
874376 Koellner, Ruben Gideon (2453) Morkunas, Gustas (2074) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 c5 5. c3 Nc6 6. Bd3 Be7 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 a6 11. a3 Qe7 12. c4 dxc4 13. Nxc4 Bc7 14. Rc1 Rd8 15. Qc2 h6 16. Rfd1 Bd7 17. Qb1 Be8 18. h3 Rac8 19. e4 e5 20. Ne3 Qf8 21. Bc4 b5 22. Bb3 Bb6 23. Nd5 Nxd5 24. exd5 Nd4 25. Nxd4 Rxc1 26. Qxc1 exd4 27. Bxd4 Bxd4 28. Rxd4 Qd6 29. Qf4 Qxf4 30. Rxf4 Kf8 31. Re4 f6 32. Kf1 Bf7 33. Rd4 Ke7 34. d6+ Kf8 35. Bc2 Bc4+ 36. Ke1 Ke8 37. Kd2 Kd7 38. Bf5+ Kc6 39. Be4+ Kb6 40. Ke3 Be6 41. Kf4 a5 42. Bf5 Bf7 43. Bd3 axb4 44. axb4 Kc6 45. Be4+ Kb6 46. Kf5 Bg8 47. Kg6 Rd7 48. Bf5 Bf7+ 49. Kxg7 Be6+ 50. Kxf6 Bxf5 51. Kxf5 Kc6 52. Ke6 Rd8 53. d7 Kc7 54. Ke7 1-0
2023.07.25 Titled Tue 25th Jul Early
874691 Marn, Jan (2345) Koellner, Ruben Gideon (2453) 1/2-1/2
1. f4 d5 2. Nf3 Bg4 3. Ne5 h5 4. b3 e6 5. Bb2 Nd7 6. Nxg4 hxg4 7. g3 Ngf6 8. Bg2 Ne4 9. d3 Nd6 10. Nd2 Nf5 11. Nf1 Bb4+ 12. c3 Qf6 13. Qd2 Bc5 14. e4 Ne7 15. O-O-O a5 16. Ne3 Bxe3 17. Qxe3 c6 18. c4 Qg6 19. exd5 cxd5 20. cxd5 Ra6 21. dxe6 Rxe6 22. Qd4 Nf5 23. Qf2 O-O 24. Rhe1 Rxe1 25. Rxe1 Rc8+ 26. Kb1 Nc5 27. Be4 Nxe4 28. dxe4 Nd6 29. Qd4 Re8 30. f5 Nxf5 31. Qd7 Nd6 32. Ka1 Rxe4 33. Rxe4 Qxe4 34. a3 Qe6 35. Qd8+ Kh7 36. Qxa5 Kg6 37. Qc3 f6 38. Qc2+ Qe4 39. Qxe4+ Nxe4 40. Bd4 Kf5 41. Kb2 Ke6 42. Kc2 Kd5 43. Kd3 Ng5 44. Be3 Nf3 45. a4 Nxh2 46. b4 Nf3 47. b5 Ne5+ 48. Ke2 Kc4 49. Bd2 Nd7 50. Ke3 Nc5 51. Kf4 Nxa4 52. Kxg4 Kxb5 53. Kf5 Nc5 54. Kg6 Ne4 55. Be1 Kc4 56. Kxg7 Kd3 57. Kg6 Ke2 58. Ba5 Kf3 59. Kf5 b5 60. g4 Ke3 61. Bb6+ Kd3 62. Ba5 Kd4 63. Bb6+ Kd5 64. Ba5 Nf2 65. Kxf6 Nxg4+ 66. Kf5 Ne5 67. Kf4 Nc4 68. Bb4 Kd4 69. Kf3 Kd3 70. Kf2 Kc2 71. Ke2 Nb2 72. Bf8 Nd3 73. Be7 Kc3 74. Bf8 Kc4 75. Kd2 Nc5 76. Bxc5 Kxc5 77. Kc3 Kb6 78. Kb4 Kc6 79. Kb3 Kb6 80. Kb4 Ka6 81. Kb3 Ka5 82. Ka3 b4+ 83. Kb3 Kb5 84. Kb2 Kc4 85. Kc2 b3+ 86. Kb2 Kb4 87. Kb1 Kc3 88. Kc1 Kc4 89. Kb2 Kb4 90. Kb1 Kb5 91. Kb2 Ka4 92. Kb1 Ka3 93. Ka1 Kb4 94. Kb2 Kc4 95. Kb1 Kc3 96. Kc1 b2+ 97. Kb1 Kb3 1/2-1/2
2023.07.25 Titled Tue 25th Jul Early
874819 Koellner, Ruben Gideon (2453) Salman, P (2287) 1/2-1/2
1. d4 Nf6 2. Nf3 c5 3. e3 g6 4. dxc5 Bg7 5. Nbd2 O-O 6. Be2 Na6 7. Bxa6 bxa6 8. O-O Qc7 9. Nb3 Bb7 10. Rb1 Ne4 11. Qd3 a5 12. a4 Nxc5 13. Nxc5 Qxc5 14. Qxd7 Bxf3 15. gxf3 Qxc2 16. Ra1 Bf6 17. Qd2 Qf5 18. f4 Rfd8 19. Qe2 Rac8 20. Re1 Rc2 21. Qf3 Bxb2 22. Bxb2 Rxb2 23. Red1 Rdd2 24. Rxd2 Rxd2 25. Rc1 Ra2 26. Rc4 Ra1+ 27. Kg2 h5 28. h3 Qb1 29. Kg3 Qg1+ 30. Kh4 Kh7 31. Rc7 Kh6 32. Qg3 Qxg3+ 33. Kxg3 Rxa4 34. Rxe7 Kg7 35. Rxa7 Kf6 36. e4 Rxe4 37. Rxa5 Rb4 38. Ra6+ Kg7 39. f3 Rc4 40. Ra5 Kf6 41. Ra6+ Kg7 42. Ra5 Rb4 43. f5 g5 44. Ra6 Rf4 45. Ra3 h4+ 46. Kf2 Rxf5 47. Ke3 Re5+ 48. Kf2 Rb5 49. Ra2 Kg6 50. Kg2 Kf5 51. Kf2 f6 52. Kg2 Kf4 53. Ra4+ Kf5 54. Ra2 Rb4 55. Kf2 Kf4 56. Rc2 f5 57. Ra2 Rc4 58. Rb2 Ra4 59. Rc2 Ra5 60. Rc4+ Ke5 61. Rc2 Kd4 62. Rd2+ Ke5 63. Re2+ Kf4 64. Rb2 Ra4 65. Rc2 g4 66. fxg4 fxg4 67. hxg4 Kxg4 68. Kg2 Rd4 69. Kh2 Re4 70. Rg2+ Kf4 71. Kh3 Kf3 72. Rg8 Re1 73. Rf8+ Ke2 74. Re8+ Kf1 75. Rxe1+ Kxe1 76. Kxh4 1/2-1/2
2023.07.25 Titled Tue 25th Jul Early
874922 Lopez, Hen (2068) Koellner, Ruben Gideon (2453) 0-1
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. Qb3 b6 6. g3 c5 7. Bg2 Nc6 8. dxc5 bxc5 9. O-O Rc8 10. Qd1 Bg7 11. Re1 O-O 12. e4 Be6 13. Nd5 Rb8 14. Rb1 Nb4 15. a3 Nbxd5 16. cxd5 Bg4 17. h3 Bxf3 18. Bxf3 Nd7 19. Qc2 Qa5 20. Bd2 Qb5 21. b3 Qa6 22. a4 Rb7 23. Be2 Qb6 24. Kg2 Rfb8 25. f4 Qc7 26. Ba6 Rb6 27. Ba5 Bd4 28. Bxb6 Qxb6 29. Bc4 a5 30. Qe2 Qb4 31. Bb5 Nf6 32. Qf3 Qc3 33. Re2 Qxf3+ 34. Kxf3 Kf8 35. Rd1 Rc8 36. g4 h6 37. h4 g5 38. Bc4 gxf4 39. Kxf4 Be5+ 40. Kf3 Kg7 41. g5 hxg5 42. hxg5 Nh7 43. Rg2 Nf8 44. Rh1 Ng6 45. Rg4 Rb8 46. Ke2 Bd4 47. Bb5 Be5 48. Kf3 Rb7 49. Ke2 Rb8 50. Kd3 Rh8 51. Rxh8 Nxh8 52. Kc4 Ng6 53. Ba6 Bd4 54. Kb5 Bc3 55. Kc6 Ne5+ 0-1
2023.07.25 Titled Tue 25th Jul Late
875033 Campos, Maria Jose (2212) Koellner, Ruben Gideon (2453) 0-1
1. c4 d6 2. g3 Nf6 3. Bg2 e5 4. Nc3 Be7 5. d3 O-O 6. e4 c5 7. Nge2 Nc6 8. O-O Nd4 9. h3 Be6 10. Kh2 h6 11. Be3 a6 12. a4 Qb6 13. Rb1 Qb3 14. f4 Qxd1 15. Rfxd1 Rfb8 16. f5 Bd7 17. g4 b5 18. axb5 axb5 19. Bxd4 cxd4 20. Nd5 Nxd5 21. cxd5 Bg5 22. Kg3 Rc8 23. h4 Be3 24. Kf3 Rc2 25. g5 hxg5 26. hxg5 Bxg5 27. Bh3 f6 28. Rg1 Be8 29. Bg4 Ra2 30. Nc1 Raxb2 31. Nb3 Rf2+ 32. Kg3 Bf4+ 33. Kh4 Rh2+ 34. Bh3 Rxh3+ 35. Kxh3 Rh2+ 36. Kg4 Bh5# 0-1
2023.07.25 Titled Tue 25th Jul Late
875297 Koellner, Ruben Gideon (2453) Fajdetic, H (2151) 1-0
1. d4 e6 2. Nf3 f5 3. Bg5 Nf6 4. Nc3 d5 5. e3 c6 6. Ne5 Bd6 7. f4 O-O 8. Bd3 b6 9. Qe2 Bb7 10. h3 c5 11. Qf2 Qe8 12. O-O-O Ne4 13. Nxe4 fxe4 14. Be2 cxd4 15. exd4 Nc6 16. Qg3 Rc8 17. Kb1 Na5 18. h4 Bxe5 19. fxe5 Nc4 20. h5 Qb5 21. Bxc4 Qxc4 22. c3 Qe2 23. Bf6 Rc7 24. h6 g6 25. Qh3 Rc6 26. Rhe1 Qb5 27. Rf1 Ba6 28. Rf2 Rfc8 29. Be7 Qa4 30. b3 Qa5 31. Bb4 Qb5 32. a4 Rxc3 33. Qxc3 Rxc3 34. Rf8# 1-0
2023.07.25 Titled Tue 25th Jul Late
875541 Koellner, Ruben Gideon (2453) Sargsyan, Shant (2654) 0-1
1. d4 e6 2. Nf3 b6 3. Nbd2 Bb7 4. e4 c5 5. c3 Nf6 6. Bd3 cxd4 7. cxd4 Nc6 8. a3 Be7 9. O-O O-O 10. Qe2 d6 11. b4 Rc8 12. Bb2 Nh5 13. g3 Nf6 14. Rfe1 h6 15. Rad1 Nb8 16. e5 Nd5 17. Ne4 a6 18. h4 Bc6 19. Kh2 Ba4 20. Rc1 Rxc1 21. Rxc1 Qd7 22. exd6 Bxd6 23. Nxd6 Qxd6 24. Qe4 Nf6 25. Qe5 Qd5 26. Qxd5 Nxd5 27. Ne5 Rd8 28. Be4 f6 29. Nc4 Nd7 30. Ne3 Bb3 31. Rc6 Kf7 32. Rd6 Ke7 33. Bxd5 Bxd5 34. Rxd5 exd5 35. Nxd5+ Kf7 36. Kg2 b5 37. Nc7 Nb6 38. Nxa6 Nc4 39. Bc3 Nxa3 40. Kf3 Ke6 41. Ke4 f5+ 42. Kd3 Rc8 43. d5+ Kxd5 44. Bxg7 h5 45. Nc5 Nc4 46. Nb3 Ra8 47. Bc3 Ne5+ 48. Kc2 Ra2+ 49. Kb1 Rxf2 50. Nd4 Kc4 0-1
2023.07.25 Titled Tue 25th Jul Late
875761 Taboas Rodriguez, D (2374) Koellner, Ruben Gideon (2453) 0-1
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. d5 e5 6. dxe6 Bxe6 7. e4 Bg7 8. Be2 O-O 9. O-O Nc6 10. h3 Ne5 11. Nxe5 dxe5 12. Be3 Qxd1 13. Rfxd1 c6 14. Bc5 Rfe8 15. Bd6 Nd7 16. b4 Bf8 17. a3 Bxd6 18. Rxd6 Kf8 19. Rad1 Ke7 20. c5 Red8 21. Kh2 f5 22. g3 Nf6 23. exf5 gxf5 24. f4 e4 25. Kg2 Rxd6 26. Rxd6 a5 27. b5 Rc8 28. bxc6 Rxc6 29. Rxc6 bxc6 30. Bd1 Nd7 31. Na4 Bc4 32. Kf2 Ke6 33. Ke3 Bf1 34. h4 Bb5 35. g4 Nf6 36. Nc3 fxg4 37. Nxe4 Nd5+ 38. Kd4 Nxf4 39. Bxg4+ Ke7 40. Nd6 Ba4 41. Bf5 h6 42. Be4 Ne6+ 43. Kc4 Kf6 44. Nf5 Bb5+ 45. Kc3 Nxc5 46. Bc2 Na4+ 47. Kd4 Kg6 0-1
2023.07.25 Titled Tue 25th Jul Late
875885 Koellner, Ruben Gideon (2453) Gulamali, K (2243) 1/2-1/2
1. d4 Nf6 2. Nf3 b5 3. Nbd2 Bb7 4. e3 a6 5. a4 b4 6. Bd3 e6 7. O-O d5 8. Ne5 Nbd7 9. f4 c5 10. c3 Bd6 11. Qf3 O-O 12. g4 c4 13. Bc2 b3 14. Bb1 Rb8 15. g5 Bxe5 16. dxe5 Ne8 17. Bxh7+ Kxh7 18. Qh5+ Kg8 19. Rf3 g6 20. Qh6 Ng7 21. Rh3 Nh5 22. Nf1 Nxe5 23. fxe5 d4 24. Ng3 dxc3 25. Nxh5 Qd1+ 26. Kf2 gxh5 27. Rxh5 Qf3+ 28. Ke1 Qh1+ 29. Kf2 Qg2+ 30. Ke1 Qg1+ 31. Ke2 Qg4+ 32. Ke1 Qg1+ 33. Ke2 Qg2+ 34. Ke1 Qg1+ 1/2-1/2
2023.07.25 Titled Tue 25th Jul Late
876009 Musovic, A (2265) Koellner, Ruben Gideon (2453) 1-0
1. a3 g6 2. Nc3 Bg7 3. e4 d6 4. d4 c5 5. dxc5 dxc5 6. Qxd8+ Kxd8 7. Be3 b6 8. O-O-O+ Ke8 9. Nd5 Be5 10. Nf3 Bd6 11. e5 Bb7 12. exd6 Bxd5 13. Rxd5 Nf6 14. Bb5+ Kd8 15. dxe7+ Kxe7 16. Bg5 1-0
2023.07.24 Julius Baer Play-In 2023
886901 Gledura, B (2645) Koellner, Ruben Gideon (2453) 1-0
1. Nf3 d5 2. g3 Nd7 3. Bg2 e5 4. d3 Ngf6 5. O-O c6 6. Nbd2 Bd6 7. e4 O-O 8. Re1 Re8 9. Qe2 a5 10. a4 b6 11. Nh4 Bf8 12. Nf5 Nc5 13. Ne3 Ba6 14. Qf3 Ne6 15. exd5 Nd4 16. Qd1 cxd5 17. c3 Nc6 18. Nb3 Rc8 19. Nf5 Qd7 20. Bh3 Kh8 21. Bg5 Qd8 22. Ne3 Rc7 23. Bxf6 gxf6 24. d4 Bc4 25. Bg2 Ne7 26. h4 e4 27. Nxc4 dxc4 28. Nd2 f5 29. Qh5 Bg7 30. Nf1 Qd6 31. f3 exf3 32. Qxf3 f4 33. Re4 f5 34. Re2 Rg8 35. Rae1 Ng6 36. Qd5 Qf6 37. Re6 Qd8 38. Qxd8 Rxd8 39. Re8+ Rxe8 40. Rxe8+ Nf8 41. gxf4 Bh6 42. Ne3 Rf7 43. Nd5 Kg7 44. h5 Ra7 45. Bh3 Rf7 46. Re5 Nd7 47. Rxf5 Nf6 48. Nxb6 Rb7 49. Nxc4 Rc7 50. Nxa5 Ne4 51. Re5 Nd6 52. Re6 Nc4 53. Nxc4 Rxc4 54. a5 Ra4 55. a6 Bxf4 56. Bg2 Ra2 57. Re7+ Kf6 58. Rb7 Bg3 59. Be4 Rxa6 60. Rxh7 Kg5 61. Rg7+ Kxh5 62. Rxg3 1-0
2023.07.24 Julius Baer Play-In 2023
886989 Hammer, J (2630) Koellner, Ruben Gideon (2453) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Ke8 7. Nf3 Bd6 8. Bg5 Nbd7 9. O-O-O h6 10. Bh4 a6 11. Rhe1 g6 12. Nd5 Nxd5 13. Bxd5 Kf8 14. Nd2 Be7 15. Bg3 Kg7 16. Bb3 f6 17. f4 exf4 18. Bxf4 Ne5 19. Nc4 Nxc4 20. Bxc4 Bg4 21. Rd2 g5 22. Bg3 Rhd8 23. h3 Rxd2 24. Kxd2 Bh5 25. a4 Rd8+ 26. Kc3 b5 27. Bd3 bxa4 28. Ra1 Be8 29. Bxa6 Rb8 30. Bc4 Bb4+ 31. Kd3 Rd8+ 32. Ke3 Bc5+ 33. Ke2 Rd4 34. Bd3 Rb4 35. Ra2 Bf7 36. Ra3 Bh5+ 37. Kd2 Bd4 38. b3 axb3 39. c3 Bc5 40. Ra5 b2 41. Rxc5 b1=Q 42. Rxc7+ Bf7 43. Bxb1 Rxb1 44. Bf2 Rb2+ 45. Ke3 Kg6 46. g3 Be6 47. Rc6 Kf7 48. Rc7+ Kg6 49. Rc6 Kf7 50. g4 Rb1 51. Kf3 Rd1 52. c4 Rd3+ 53. Be3 Rc3 54. c5 Bb3 55. Rd6 1-0
2023.07.24 Julius Baer Play-In 2023
887071 Koellner, Ruben Gideon (2453) Ponkratov, P (2589) 0-1
1. d4 e6 2. Nf3 c5 3. e3 Nf6 4. Nbd2 b6 5. c3 Bb7 6. Bd3 Qc7 7. O-O g5 8. Nxg5 Rg8 9. Ngf3 Ng4 10. h3 Nf6 11. e4 Nc6 12. d5 exd5 13. exd5 Nxd5 14. Re1+ Be7 15. Ne4 O-O-O 16. Bc4 Nf4 17. Bxf4 Qxf4 18. Bd5 h5 19. Kh1 Kb8 20. Qd2 Qc7 21. Ng3 Bd6 22. Nf5 Bf4 23. Qd3 Rdf8 24. Ne7 Rg7 25. Nxc6+ dxc6 26. Be4 Rfg8 27. Nh4 Rd8 28. Qf3 Rd2 29. Re2 Rxe2 30. Qxe2 Rg8 31. Qxh5 Re8 32. Bf3 Qe7 33. Nf5 Qe1+ 34. Rxe1 Rxe1# 0-1
2023.07.04 Titled Tue 4th Jul Early
902559 Topalov, A (2233) Koellner, Ruben Gideon (2453) 0-1
1. b3 d5 2. Bb2 Nd7 3. Nf3 Ngf6 4. e3 e6 5. d4 c5 6. Nbd2 g6 7. Bd3 Bg7 8. O-O O-O 9. c4 b6 10. cxd5 Nxd5 11. Rc1 Bb7 12. Qe2 Rc8 13. Nc4 Qe7 14. dxc5 Nxc5 15. Bb1 Rfd8 16. Bxg7 Kxg7 17. Qb2+ Qf6 18. Qxf6+ Kxf6 19. Rfd1 Ba6 20. g3 Ke7 21. Nfe5 f6 22. Nf3 Nb4 23. Rxd8 Rxd8 24. Nd4 e5 25. Nf3 Bxc4 26. bxc4 Nbd3 27. Rd1 Nb2 28. Rc1 Rd1+ 29. Rxd1 Nxd1 30. Bc2 Nc3 31. Bb3 a5 32. Nd2 a4 33. Bc2 Nxa2 34. Kf1 Nb4 35. Bb1 a3 0-1
2023.07.04 Titled Tue 4th Jul Early
902911 Koellner, Ruben Gideon (2453) Prieto Aranguren, A (2258) 1-0
1. d4 g6 2. Nf3 Bg7 3. Nbd2 d6 4. e4 Nf6 5. Bc4 O-O 6. O-O c6 7. Bb3 Na6 8. c3 Qc7 9. Qe2 e5 10. dxe5 dxe5 11. Nc4 Nc5 12. Bc2 Nh5 13. b4 Ne6 14. g3 b6 15. Rd1 Ba6 16. a4 Qc8 17. Bd3 Rd8 18. Ncxe5 Bxd3 19. Rxd3 Rxd3 20. Qxd3 Qc7 21. Nc4 Rd8 22. Qc2 Qe7 23. e5 h6 24. Be3 Nc7 25. Rd1 Nd5 26. Qd3 Qe6 27. b5 Qg4 28. bxc6 Qxf3 29. c7 Rc8 30. Qxd5 Qxd5 31. Rxd5 Rxc7 32. Rd4 f5 33. f4 g5 34. Bd2 gxf4 35. gxf4 Bf8 36. Nd6 Ng7 37. Kf2 Ne6 38. Nxf5 Nxd4 39. cxd4 Rc2 40. Ke3 Ra2 41. e6 Ra3+ 42. Ke4 Ra2 43. Be3 Rxa4 44. e7 Bxe7 45. Nxe7+ Kf7 46. Nc6 a5 47. Ke5 Ra3 48. Bf2 Rf3 49. Bg1 a4 50. d5 a3 51. Bd4 a2 52. d6 Re3+ 53. Kd5 Rd3 54. d7 Rxd4+ 55. Nxd4 a1=Q 56. d8=Q Qa5+ 57. Ke4 Qe1+ 58. Kf5 Qb1+ 59. Ke5 Qe1+ 60. Kd6 Qe6+ 61. Nxe6 1-0
2023.07.04 Titled Tue 4th Jul Early
903098 Koellner, Ruben Gideon (2453) Ibarra Jerez, JC (2563) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 b6 5. Bd3 Bb7 6. Ne5 Bd6 7. f4 O-O 8. Qf3 c5 9. c3 Nc6 10. O-O Rc8 11. g4 Qc7 12. g5 Ne8 13. Bxh7+ Kxh7 14. Qh5+ Kg8 15. Rf3 g6 16. Qh6 Ng7 17. Rh3 Nh5 18. Ng4 f5 19. Qxg6+ Qg7 20. Qxe6+ Rf7 21. Nh6+ Kf8 22. Qxd6+ Re7 23. Rxh5 Rd8 24. Qf6+ Qxf6 25. gxf6 Rxe3 26. Nxf5 Re6 27. Nf3 Rxf6 28. Ne5 Nxe5 29. fxe5 Rg6+ 30. Bg5 Rd7 31. Rf1 Ba6 32. Rf2 Kg8 33. Rg2 Kf7 34. Rh7+ Ke6 35. Rxd7 Kxd7 36. h4 Bd3 37. Ne3 Be4 38. Rf2 cxd4 39. cxd4 Rc6 40. Kh2 Rc1 41. Ng2 Ke6 42. Bxc1 1-0
2023.07.04 Titled Tue 4th Jul Early
903401 Svane, R (2625) Koellner, Ruben Gideon (2453) 1-0
1. Nf3 d5 2. g3 Nd7 3. d4 Nb6 4. Nc3 Nf6 5. Bg2 Bf5 6. Nh4 Bg4 7. h3 Bh5 8. g4 Bg6 9. Nxg6 hxg6 10. e4 e6 11. e5 Nfd7 12. Ne2 c5 13. c3 cxd4 14. cxd4 Bb4+ 15. Kf1 Rc8 16. a3 Be7 17. Bd2 Nb8 18. f4 Qd7 19. Bf3 Qa4 20. b3 Qa6 21. Kg2 Qd3 22. Ba5 Qxd1 23. Rhxd1 Kd7 24. Rd2 Nc6 25. Bc3 a5 26. Rb2 Rc7 27. Bd2 a4 28. bxa4 Nc4 29. Rba2 Ra8 30. a5 N6xa5 31. Bxa5 Rxa5 32. a4 Rc8 33. Rb1 b6 34. Kg3 Rca8 35. Nc3 g5 36. f5 f6 37. fxe6+ Kxe6 38. Rb5 Rxb5 39. axb5 Rxa2 40. Bxd5+ Kd7 41. Nxa2 Ne3 42. Bb3 fxe5 43. dxe5 Bc5 44. Kf3 Nf1 45. Bd5 Nd2+ 46. Ke2 Nb1 47. Kd3 Na3 48. Nc3 Bb4 49. Bc6+ Ke6 50. Nd5 Bc5 51. Ke4 Nc4 52. Nc7+ Ke7 53. Kf5 Be3 54. Nd5+ Kf8 55. e6 Bc5 56. Kxg5 Ne5 57. Kf5 Nc4 58. h4 Nd6+ 59. Kg6 Nc8 60. g5 Ne7+ 61. Nxe7 Bxe7 62. h5 Bc5 63. Bd5 Bd4 64. Bc4 Ke7 65. Kh7 Kf8 66. h6 gxh6 67. gxh6 Bf6 68. Kg6 Bd4 69. Bb3 Bc3 70. Bc2 Bb2 71. Bd3 Bc3 72. Kh7 Bf6 73. Bc4 Bg5 74. Kg6 Bd2 75. e7+ Kxe7 76. Kg7 1-0
2023.07.04 Titled Tue 4th Jul Early
903623 Dardha, Daniel (2600) Koellner, Ruben Gideon (2453) 1-0
1. d4 d6 2. Bg5 Nd7 3. Nc3 Ngf6 4. e4 e5 5. Bc4 Be7 6. Nf3 h6 7. Be3 c6 8. a4 Qc7 9. h3 Nf8 10. a5 Ng6 11. O-O O-O 12. d5 cxd5 13. Bxd5 Be6 14. Bxe6 fxe6 15. a6 bxa6 16. Rxa6 Qb7 17. Qd3 Rfc8 18. Ra2 a5 19. Rfa1 Kh7 20. b3 Qc7 21. Nb5 Qc6 22. Na7 Qxe4 23. Nxc8 Rxc8 24. Qxe4 Nxe4 25. c4 Bd8 26. Nd2 Nf6 27. Nb1 Rb8 28. Ra3 d5 29. Bd2 Ne4 30. Bxa5 Bxa5 31. Rxa5 Rxb3 32. cxd5 exd5 33. Rxd5 Rb2 34. f3 Ng3 35. Rd2 Rb3 36. Na3 e4 37. fxe4 Nxe4 38. Rc2 Nf6 39. Nc4 Rb7 40. Re1 Rc7 41. Ne3 Re7 42. Rcc1 Nf4 43. Nf5 Ra7 44. Rc4 N4d5 45. Rd4 Kg6 46. Nh4+ Kf7 47. Nf3 Ne7 48. Ne5+ Kg8 49. Rc4 Kh7 50. Nc6 Nxc6 51. Rxc6 Kg6 52. Rf1 Rf7 53. Rc3 Rd7 54. Rg3+ Kh7 55. Rgf3 Kg6 56. Kh2 Ra7 57. Rb3 Rc7 58. Rfb1 Ra7 59. Rb7 Rxb7 60. Rxb7 Nh7 61. g4 Kf6 62. Rb6+ Kf7 63. Kg3 Nf8 64. Ra6 Ne6 65. h4 g6 66. Ra7+ Kg8 67. Kf3 Ng7 68. Kf4 h5 69. gxh5 gxh5 70. Kg5 Kf8 71. Kf6 Ne8+ 72. Kg6 Nd6 73. Kxh5 Kg8 74. Kg6 Kf8 75. Ra8+ Ke7 76. h5 Ke6 77. h6 1-0
2023.07.04 Titled Tue 4th Jul Early
903689 Koellner, Ruben Gideon (2453) Krishnan, Ritvik (2037) 1-0
1. d4 Nf6 2. Nf3 c5 3. e3 b6 4. Nbd2 Bb7 5. Bd3 e6 6. O-O Nc6 7. c3 Rc8 8. Qe2 Be7 9. a3 O-O 10. e4 Nh5 11. g3 d5 12. e5 f6 13. exf6 Nxf6 14. Qxe6+ Kh8 15. Ng5 Qe8 16. Qh3 h6 17. Ne6 Rg8 18. Nf3 Ne4 19. Nf4 Qf7 20. Re1 Na5 21. Ne5 Qf6 22. Neg6+ Kh7 23. f3 Bd6 24. fxe4 dxe4 25. Bxe4 Bxe4 26. Rxe4 Rce8 27. Rxe8 Rxe8 28. Bd2 Nb3 29. Re1 Rxe1+ 30. Bxe1 cxd4 31. Qc8 Bxf4 32. Nxf4 Qe5 33. Bf2 d3 34. Nxd3 Qe4 35. Ne1 Nc1 36. Qd7 Ne2+ 37. Kf1 Nc1 38. Qd2 Qh1+ 39. Bg1 Na2 40. Qg2 1-0
2023.07.04 Titled Tue 4th Jul Early
903971 Chyngyz, Sultai (1715) Koellner, Ruben Gideon (2453) 1-0
1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. c3 Nbd7 5. Nf3 d5 6. Nbd2 exd4 7. cxd4 dxe4 8. Nxe4 Nxe4 9. Bxe4 Bb4+ 10. Bd2 Qe7 11. O-O Bxd2 12. Qxd2 O-O 13. Rfe1 Qd6 14. Rad1 Nf6 15. Bc2 Bg4 16. Qd3 Rad8 17. Rd2 Bxf3 18. Qxf3 Qb4 19. Qc3 Qb6 20. Red1 Rd6 21. Qa3 Rfd8 22. Qe3 g6 23. Bb3 Kg7 24. h4 Qb4 25. a3 Qb5 26. Rd3 c5 27. Qe5 a6 28. a4 Qb4 29. Rf3 cxd4 30. g4 Re8 31. Qg3 Re7 32. h5 Qc5 33. Qf4 h6 34. hxg6 fxg6 35. Rg3 Qe5 36. Qf3 Ne4 37. Re1 Rf6 38. Qd3 Rf4 39. Bc2 Qf6 40. Rg2 Ng5 41. Rxe7+ Qxe7 42. Qxg6+ Kf8 43. Qxh6+ Qg7 44. Qd6+ Kg8 45. Bb3+ Kh7 46. Rh2+ Nh3+ 47. Rxh3+ Qh6 48. Qxh6# 1-0
2023.07.04 Titled Tue 4th Jul Early
904051 Koellner, Ruben Gideon (2453) Demin, V1 (2430) 1-0
1. d4 Nf6 2. Nf3 d5 3. Nbd2 e6 4. e3 c5 5. c4 Nc6 6. b3 cxd4 7. exd4 Bb4 8. Bb2 Ne4 9. a3 Bxd2+ 10. Nxd2 Nxd2 11. Qxd2 O-O 12. Be2 Qb6 13. Qc3 Ne7 14. c5 Qc7 15. O-O b6 16. b4 a5 17. g3 Bd7 18. b5 Rfc8 19. c6 Be8 20. a4 Nf5 21. Bd3 Nd6 22. Ba3 Ne4 23. Bxe4 dxe4 24. Qe3 f5 25. Rfd1 Bf7 26. f3 exf3 27. Qxf3 Rd8 28. d5 Rxd5 29. Rxd5 exd5 30. Qxf5 Re8 31. Rf1 h6 32. Bd6 Qa7 33. c7 Be6 34. Qxe6+ Rxe6 35. c8=Q+ 1-0
2023.07.04 Titled Tue 4th Jul Early
904297 Kopczynski, M (2225) Koellner, Ruben Gideon (2453) 0-1
1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. d5 Be7 5. c4 O-O 6. Ne2 Nbd7 7. f3 c6 8. O-O a6 9. a4 a5 10. Nbc3 Qb6+ 11. Kh1 Nc5 12. Bc2 Nh5 13. Be3 g6 14. Rb1 f5 15. exf5 gxf5 16. f4 e4 17. Nd4 Nf6 18. Qe1 Ng4 19. Bg1 Bf6 20. Nb3 e3 21. Nc1 Re8 22. h3 Nh6 23. Bxe3 Bd7 24. Qf2 Qb4 25. dxc6 Bxc6 26. Nd5 Bxd5 27. cxd5 Ne4 28. Qe1 Qc4 29. Bb3 Qxf1+ 30. Qxf1 Ng3+ 31. Kg1 Nxf1 32. Bf2 Nd2 33. Ra1 Bxb2 34. Ra2 Bxc1 35. Bd1 Ne4 36. Bh4 Bxf4 37. Rb2 Bg3 38. Bxg3 Nxg3 39. Kh2 f4 40. Rxb7 Re1 0-1
2023.07.04 Titled Tue 4th Jul Early
904428 Koellner, Ruben Gideon (2453) Kukreja, Sankalp (2158) 1-0
1. d4 d5 2. Nf3 Nf6 3. Nbd2 Bf5 4. e3 e6 5. Ne5 Bd6 6. g4 Be4 7. f3 Bg6 8. h4 h5 9. Nxg6 fxg6 10. g5 Bg3+ 11. Ke2 Nfd7 12. f4 c5 13. c3 O-O 14. Nf3 Nc6 15. Rh3 Bxf4 16. exf4 Qe7 17. Kf2 Qd6 18. Bd3 Ne7 19. Be3 e5 20. dxe5 Qe6 21. Kg2 c4 22. Bc2 Nf5 23. Qe2 Rae8 24. Nd4 Nxd4 25. cxd4 Qb6 26. Re1 Kh7 27. Qxh5+ 1-0
2023.07.04 Titled Tue 4th Jul Early
904656 Koellner, Ruben Gideon (2453) Demchenko, A (2623) 1-0
1. d4 Nf6 2. Nf3 d6 3. Nbd2 g6 4. e4 Bg7 5. Bc4 O-O 6. O-O Nc6 7. c3 e5 8. dxe5 dxe5 9. Qe2 Nh5 10. g3 Qe7 11. a4 Bh3 12. Re1 Rfd8 13. Nf1 Be6 14. Bg5 Bf6 15. Be3 Ng7 16. Red1 Na5 17. Bxe6 Qxe6 18. N3d2 b6 19. b4 Nb3 20. Rab1 Nxd2 21. Nxd2 a5 22. b5 Qa2 23. Ra1 Qe6 24. Kg2 Ne8 25. Qc4 Qxc4 26. Nxc4 Kf8 27. Kf3 Ke7 28. Ke2 Ke6 29. f3 h5 30. Rxd8 Rxd8 31. Rd1 Rxd1 32. Kxd1 Be7 33. Kc2 Nf6 34. Nxb6 cxb6 35. Bxb6 Nd7 36. Bxa5 Nc5 37. Bb4 Nxa4 38. Kb3 Nc5+ 39. Kc4 Nd7 40. Bxe7 Kxe7 41. Kd5 Nb6+ 42. Kc6 Nc4 43. b6 Kd8 44. b7 Na5+ 45. Kb6 Nc4+ 46. Ka7 1-0
2023.07.04 Titled Tue 4th Jul Late
904884 Mikhalsky, Vladimir (2219) Koellner, Ruben Gideon (2453) 1-0
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. Bxf7+ Kxf7 7. Ng5+ Kg8 8. Ne6 Qe8 9. Nxc7 Qg6 10. O-O Rb8 11. N3d5 Nxd5 12. Nxd5 Bd8 13. Re1 Nf6 14. dxe5 dxe5 15. Be3 b6 16. f3 Be6 17. c4 h6 18. Nb4 Rc8 19. b3 Kh7 20. Qd2 Be7 21. Nd5 Bc5 22. Rac1 Nh5 23. Kh1 Rhd8 24. Qc3 Bxd5 25. exd5 Bxe3 26. Qxe3 Re8 27. Qe4 Nf4 28. Qxg6+ Kxg6 29. Rcd1 Kf5 30. g3 Ng6 31. d6 Rcd8 32. b4 Ke6 33. c5 bxc5 34. bxc5 Rf8 35. f4 Rf5 36. Re4 Kd7 37. Ra4 Ra8 38. Ra6 Rc8 39. c6+ Rxc6 40. Rxc6 Kxc6 41. d7 Rf8 42. d8=Q Rxd8 43. Rxd8 exf4 44. gxf4 Nxf4 45. Rg8 Ne6 46. Re8 Nc7 47. Re7 g5 48. Kg2 a5 49. Rh7 Nd5 50. Rxh6+ Kb5 51. Kg3 Nc3 52. a3 Nb1 53. Rg6 Nxa3 54. Rxg5+ Kb4 55. h4 Nc4 56. h5 a4 57. h6 Nd6 58. Rg4+ Kb3 59. h7 Nf7 60. Rg7 Nh8 61. Rg8 Nf7 62. Rf8 Ng5 63. h8=Q Ne4+ 64. Kg2 Nc3 65. Rb8+ Kc2 66. Rc8 Kb1 67. Qxc3 a3 68. Rb8+ Ka2 69. Qc2+ Ka1 70. Qc1+ Ka2 71. Qb1# 1-0
2023.07.04 Titled Tue 4th Jul Late
904922 Koellner, Ruben Gideon (2453) Campos, Maria Jose (2212) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 Be7 5. Bd3 O-O 6. O-O c5 7. c3 Nc6 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 b6 11. a3 Bb7 12. c4 Rc8 13. Rc1 Re8 14. Qe2 e5 15. Rfd1 e4 16. cxd5 exd3 17. Qxd3 Ne5 18. Nxe5 Bxe5 19. Bxe5 Rxe5 20. e4 Re8 21. Qd4 Qd6 22. g3 Ng4 23. h3 Ne5 24. f4 Ng6 25. Kh2 Rxc1 26. Rxc1 Qd7 27. Nf3 Bc8 28. d6 Qxh3+ 29. Kg1 Qxg3+ 30. Kf1 Qxf3+ 31. Qf2 Bh3+ 32. Kg1 Qxe4 33. Kh2 Bf5 34. Qd2 Qxf4+ 35. Qxf4 Nxf4 36. Rf1 g5 37. Rg1 h6 38. Rc1 Rd8 39. Rc7 Rxd6 40. Rxa7 Rd3 41. Ra6 b5 42. Rb6 Bd7 43. Rb8+ Kg7 44. Rd8 Bf5 45. Rxd3 Nxd3 46. a4 bxa4 47. b5 a3 48. b6 Be4 49. b7 Bxb7 50. Kg3 a2 51. Kg4 a1=Q 52. Kh5 Bf3# 0-1
2023.07.02 50th NRW Cup 2023
908257 Koellner, Ruben Gideon (2429) Wagner, Dinara (2447) 1/2-1/2
1. d4 Nf6 2. Nf3 d5 3. c3 e6 4. Bf4 Bd6 5. e3 O-O 6. Nbd2 c5 7. Bg3 b6 8. Bd3 Bb7 9. Qe2 Ne4 10. Rd1 Qe7 11. Bb1 Ba6 12. c4 Nxd2 13. Nxd2 cxd4 14. exd4 Nc6 15. Qe3 Rad8 16. O-O Bxg3 17. fxg3 Na5 18. b3 Rc8 1/2-1/2
2023.07.01 50th NRW Cup 2023
908254 Besou, Hussain (2325) Koellner, Ruben Gideon (2429) 0-1
1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. O-O O-O 6. d4 Bb6 7. Re1 d6 8. h3 Bd7 9. d5 Ne7 10. Bd3 Ng6 11. Be3 Nh5 12. Nbd2 Nhf4 13. Bc2 Qc8 14. Nh2 f5 15. a4 Qd8 16. exf5 Bxf5 17. Bxf5 Rxf5 18. Ne4 Qh4 19. Qg4 Raf8 20. Rad1 h5 21. Qxh4 Nxh4 22. Bxf4 Rxf4 23. Rd2 Nf5 24. Nf1 h4 25. Ree2 Ne3 26. fxe3 Rxf1+ 27. Kh2 Ra1 28. g3 Rxa4 29. Ng5 Rf5 30. Ne6 Rf3 31. Rg2 Bxe3 32. Rde2 hxg3+ 33. Rxg3 Bf4 0-1
2023.06.30 50th NRW Cup 2023
908248 Koellner, Ruben Gideon (2429) Karthik, V4 (2548) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. Nbd2 cxd4 5. exd4 Qc7 6. c3 Nc6 7. Bd3 Bg4 8. Qa4 Nd7 9. O-O e6 10. Ne5 Nb6 11. Qb5 a6 12. Qb3 Nxe5 13. dxe5 Rc8 14. Re1 Bh5 15. Qc2 Nd7 16. Qa4 Bg6 17. Bxg6 hxg6 18. Nf3 Be7 19. Be3 Qc6 20. Qg4 Qb5 21. Nd4 Qb6 22. Qg3 Bh4 23. Qf4 Qc7 24. Nf3 Be7 25. Rac1 Qa5 26. a3 Qb5 27. Rc2 Qd3 28. Rec1 b5 29. Bd4 Nb8 30. Qe3 Qf5 31. h3 g5 32. a4 bxa4 33. c4 O-O 34. Ne1 g4 35. hxg4 Qxg4 36. cxd5 Rxc2 37. Rxc2 exd5 38. Nf3 Rc8 39. Qd3 Qd7 40. Rxc8+ Qxc8 41. Bc3 Qe6 42. Nd4 Qg4 43. Qc2 Nd7 44. Qxa4 Nxe5 45. Qe8+ Kh7 46. Qxe7 Qd1+ 47. Kh2 Qh5+ 48. Kg1 Qd1+ 49. Kh2 1/2-1/2
2023.06.29 50th NRW Cup 2023
908243 De Winter, Arthur (2378) Koellner, Ruben Gideon (2429) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 h5 6. h3 c6 7. Be3 Qa5 8. Nd2 b5 9. a3 a6 10. g4 hxg4 11. hxg4 g6 12. Qf3 Be7 13. g5 Nh5 14. O-O-O Qc7 15. Ne2 c5 16. dxc5 Nxc5 17. Nc3 Be6 18. Nd5 Bxd5 19. exd5 Rb8 20. Bxc5 Qxc5 21. Ne4 Qc7 22. Rd3 Qb7 23. Rh1 Kf8 24. Ng3 Bxg5+ 25. Kb1 Qe7 26. Qd1 e4 27. Rd4 f5 28. Be2 Bf6 29. Bxh5 Bxd4 30. Qxd4 Qg7 31. Qe3 Qf6 32. Rg1 f4 33. Qa7 Re8 34. Nxe4 Rxe4 35. Rxg6 Qd4 36. Rg8+ Kxg8 37. Qf7# 1-0
2023.06.28 50th NRW Cup 2023
908239 Koellner, Ruben Gideon (2429) Souleidis, G (2419) 1-0
1. d4 d5 2. Nf3 Nf6 3. c3 Bf5 4. Qb3 Qc8 5. c4 e6 6. cxd5 exd5 7. Nc3 c6 8. Bf4 Nbd7 9. Rc1 a6 10. e3 Be7 11. h3 h6 12. Be2 O-O 13. g4 Be6 14. Rg1 Ne4 15. Qc2 Re8 16. Bd3 Bd6 17. Kf1 Qb8 18. Bxe4 dxe4 19. Bxd6 Qxd6 20. Nxe4 Qd5 21. b3 Bxg4 22. hxg4 Rxe4 23. Qc4 Qd6 24. g5 Rae8 25. Rh1 R8e6 26. Ke2 Rg4 27. gxh6 Rxh6 28. Rxh6 gxh6 29. Rh1 Rg6 30. Rh4 Qa3 31. Qc2 a5 32. Rf4 Qb4 33. Qf5 Qe7 34. Qxa5 Nf6 35. Nh4 Rg5 36. Nf5 Qf8 37. Qe5 Nd5 38. Rh4 h5 39. e4 Qa3 40. Qe8+ Qf8 41. Qxf8+ Kxf8 42. f4 Rxf5 43. exf5 Nc3+ 44. Kd3 Nxa2 45. Kc4 Ke7 46. Rh2 b5+ 47. Kc5 Nc1 48. Kxc6 Nxb3 49. d5 Nd4+ 50. Kc7 Nxf5 51. Rxh5 1-0
2023.06.27 50th NRW Cup 2023
908232 Bagrationi, A (2454) Koellner, Ruben Gideon (2429) 0-1
1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O Nbd7 8. Bf4 c6 9. Qc2 b6 10. Nbd2 Ba6 11. Rfe1 c5 12. Ne5 cxd4 13. Nc6 Qe8 14. cxd5 Nxd5 15. Bxd5 exd5 16. Nxd4 Bf6 17. N2f3 Qe4 18. Qd2 Nc5 19. Be3 Ne6 20. Rac1 Rac8 21. Rxc8 Rxc8 22. Rd1 h6 23. a3 Re8 24. Nc2 Bc4 25. b4 Bb3 26. Rc1 Rc8 27. Nce1 Rxc1 28. Qxc1 Ba4 29. Nd2 Qf5 30. Qc8+ Kh7 31. Qa6 Bd1 32. Ndf3 d4 33. Bd2 b5 34. Qxa7 Bxe2 35. Qxf7 Qh3 0-1
2023.06.26 50th NRW Cup 2023
913606 Koellner, Ruben Gideon (2429) Saltaev, M (2462) 1-0
1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. d4 e6 5. Be2 Nf6 6. e5 Nfd7 7. O-O a6 8. Ne1 Bxe2 9. Nxe2 c5 10. c3 Nc6 11. Be3 Be7 12. Nf4 g6 13. Nf3 cxd4 14. cxd4 O-O 15. g3 Qb6 16. b3 Rfc8 17. h4 Nb4 18. Ne1 Rc7 19. Qg4 Nf8 20. h5 Nc2 21. Nxc2 Rxc2 22. hxg6 fxg6 23. Kg2 Rac8 24. Rh1 R8c3 25. Rxh7 Kxh7 26. Rh1+ Kg7 27. Nxg6 Kf7 28. Nxf8 Ke8 29. Nxe6 Kd7 30. Nf4+ 1-0
2023.06.25 50th NRW Cup 2023
913597 Petrovskyi, Vadym (2423) Koellner, Ruben Gideon (2429) 1/2-1/2
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nc3 d6 7. d4 exd4 8. Nxd4 Bxd4 9. Bxc6+ bxc6 10. Qxd4 O-O 11. Bg5 h6 12. Bh4 g5 13. Bg3 Nh5 14. Rfe1 Be6 15. e5 d5 16. Na4 Ng7 17. f3 Bf5 18. Nc5 Ne6 19. Nxe6 fxe6 20. Bf2 Rb8 21. b3 Qd7 22. Rac1 Rf7 23. h4 Qe7 24. hxg5 hxg5 25. Be3 c5 26. Qxc5 Qxc5 27. Bxc5 g4 28. c3 gxf3 29. gxf3 Rh7 30. Re2 Kf7 31. Rg2 Rbh8 32. Kf2 Rh1 33. Rxh1 Rxh1 34. Rg1 Rxg1 1/2-1/2
2023.06.24 50th NRW Cup 2023
913596 Schneider, Jana (2326) Koellner, Ruben Gideon (2429) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O Nb6 7. Be2 exd4 8. Nxd4 O-O 9. a4 a5 10. f4 d5 11. e5 Ne4 12. f5 Re8 13. Bh5 Bc5 14. e6 fxe6 15. Bxe8 Qxe8 16. fxe6 Bxe6 17. Bf4 Nc4 18. Nxe4 dxe4 19. c3 Nxb2 20. Qc2 Nd3 21. Kh1 Bc4 22. Be3 Qd7 23. Rad1 Re8 24. Nf5 Qe6 25. Qd2 Rf8 26. Bxc5 Rxf5 27. Qg5 Rxf1+ 28. Rxf1 h6 29. Qd8+ Kh7 30. Rf8 Nxc5 31. Rh8+ Kg6 32. Qxc7 Nd7 33. Qg3+ Kf7 34. Rd8 Nf6 35. Qc7+ Kg6 36. Rc8 Bd5 37. c4 Bc6 38. Rh8 e3 39. h3 Qxh3+ 0-1
2023.06.20 Titled Tue 20th Jun Early
916722 Kotepalli, S (1899) Koellner, Ruben Gideon (2429) 1-0
1. e4 d6 2. d3 Nf6 3. Nf3 e5 4. g3 Be7 5. Bg2 O-O 6. O-O c5 7. c3 Nc6 8. a3 b5 9. b4 a5 10. bxc5 dxc5 11. Be3 Be6 12. Qc2 b4 13. axb4 axb4 14. Rxa8 Qxa8 15. Nbd2 Qa6 16. Ng5 Bd7 17. Nc4 Rb8 18. Rb1 Qc8 19. f4 Qc7 20. Nf3 Be6 21. Ncxe5 Nxe5 22. Nxe5 b3 23. Qd2 c4 24. dxc4 Bxc4 25. Qd4 Be6 26. f5 Bc8 27. Nd3 Ba6 28. Bf4 Qc8 29. Bxb8 Qxb8 30. Nc5 Bxc5 31. Qxc5 Bd3 32. Rb2 Bc2 33. e5 Ng4 34. e6 fxe6 35. fxe6 Nf6 36. e7 Kf7 37. Bc6 Qc8 38. Bd5+ Nxd5 39. Qxc8 Nxe7 40. Qc4+ Kf6 41. Rxb3 Bxb3 42. Qxb3 Ke5 43. Qb5+ Kd6 44. c4 h6 45. c5+ Kd5 46. Qb6 Nc6 47. Kf2 g6 48. g4 g5 49. h3 Nd4 50. Qd6+ Ke4 51. Qxd4+ Kxd4 52. c6 Ke5 53. c7 h5 54. c8=Q hxg4 55. Qxg4 Kf6 56. Kf3 Kg6 57. Ke4 Kh6 58. Kf5 Kg7 59. Qxg5+ Kh8 60. Qe7 Kg8 61. Kf6 Kh8 62. Qg7# 1-0
2023.06.20 Titled Tue 20th Jun Late
918475 Zhukov, Maksim (1835) Koellner, Ruben Gideon (2429) 0-1
1. e4 d6 2. d4 Nf6 3. f3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. Be3 Bd6 9. Nd2 Ke7 10. Ne2 Nbd7 11. Nc4 b5 12. Na5 Rhc8 13. Nc6+ Kf7 14. Nxa7 Rcb8 15. Nc6 Rc8 16. Kf2 Ra6 17. Na7 Rb8 18. b3 Bc5 19. Bxc5 Nxc5 20. Nxb5 Rxb5 21. c4 Rba5 22. b4 Nd3+ 23. Ke3 Nxb4 24. Rhc1 Ra3+ 25. Rc3 Nc2+ 0-1
2023.06.20 Titled Tue 20th Jun Late
918846 Koellner, Ruben Gideon (2429) Hakobyan, Aram (2613) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 Be7 5. Bd3 O-O 6. O-O b6 7. Ne5 Bb7 8. f4 c5 9. Qf3 Ba6 10. Bxa6 Nxa6 11. c3 Qc7 12. g4 Nb8 13. g5 Nfd7 14. Qh5 g6 15. Qh6 Nxe5 16. fxe5 Qd8 17. Nf3 Re8 18. Bd2 Nc6 19. Rf2 Bf8 20. Qh4 Ne7 21. Qf4 Nf5 22. h4 cxd4 23. exd4 h5 24. gxh6 Bxh6 25. Ng5 Bxg5 26. hxg5 Kg7 27. Rh2 Rh8 28. Kg2 Rxh2+ 29. Qxh2 Qh8 30. Rh1 Qxh2+ 31. Rxh2 b5 32. a3 a5 33. Kf2 Ne7 34. Ke2 Nc6 35. Kd3 Rb8 36. Rh1 Rg8 37. b3 Rb8 38. Rh2 a4 39. b4 Ne7 40. Rh1 Rg8 41. Rh2 Nc8 42. Bc1 Ne7 43. Rh1 Nf5 44. Bd2 Ng3 45. Rh3 Ne4 46. Kc2 Rc8 47. Rh2 Ng3 48. Rh3 Nf5 49. Kd3 Rc7 50. Rh1 Ra7 51. Rh3 Ra8 52. Bf4 Rg8 53. Bd2 Kf8 54. Be1 Ng7 55. Bd2 Nh5 56. Be3 Ke7 57. Bd2 Rc8 58. Be3 Rh8 59. Kc2 Rh7 60. Bd2 Kd7 61. Be3 Rg7 62. Bd2 Rg8 63. Be3 Rc8 64. Bd2 Ke7 65. Be3 Rc7 66. Bd2 Ng7 67. Rh8 Rb7 68. Kd3 Nf5 69. Bc1 Ng3 70. Bd2 Ne4 71. Rc8 Kd7 72. Rf8 Kc6 73. Rh8 Rc7 74. Rh3 Nf2+ 75. Ke2 Nxh3 76. Be1 Rc8 77. Kf3 Rh8 78. Kg4 Rh5 79. Bd2 Nf2+ 80. Kf3 Ne4 81. Be3 Rh3+ 82. Kg4 Rxe3 83. Kf4 Rxc3 84. Kg4 Rxa3 85. Kf4 Rc3 86. Kg4 a3 87. Kf4 a2 88. Kg4 a1=Q 89. Kf4 Qf1+ 90. Kg4 Qf5+ 91. Kh4 Qxg5# 0-1
2023.06.20 Titled Tue 20th Jun Late
919030 Herrera, Jua (2277) Koellner, Ruben Gideon (2429) 0-1
1. d4 d6 2. c4 e5 3. dxe5 dxe5 4. Qxd8+ Kxd8 5. g3 Be6 6. Bg2 c6 7. b3 Nd7 8. Bb2 Kc7 9. Nd2 f6 10. O-O-O Nh6 11. Ngf3 Bc5 12. Ne4 Be7 13. Nc3 a5 14. Kc2 Ng4 15. Rhf1 Bc5 16. e3 Bf5+ 17. e4 Be6 18. Rd2 Rad8 19. h3 Nh6 20. Na4 Ba7 21. Bc3 b6 22. Nb2 Nc5 23. Re2 Nf7 24. Nh4 Nd6 25. f4 exf4 26. gxf4 Rhe8 27. Rfe1 g5 28. Bxf6 gxh4 29. f5 Bc8 30. Bxd8+ Rxd8 31. f6 Nf7 32. e5 Bf5+ 33. Kc1 Ne6 34. Be4 Bxh3 35. Rh1 Bg4 36. Rg2 h5 37. Rxh4 Nxe5 38. Rh1 Nf4 39. Rf2 Ne2+ 40. Kb1 Nc3+ 41. Kc2 Nxe4 42. Rf4 Nc5 43. Re1 Nf7 44. a3 Ne6 45. Rfe4 Neg5 46. Re7+ Rd7 47. Re8 Bf5+ 48. Kc3 h4 49. b4 axb4+ 50. axb4 h3 51. R1e2 Kb7 52. Kb3 Bb8 53. Na4 h2 54. Re1 Be4 55. Re7 Rxe7 56. fxe7 Nd6 57. c5 Ne8 58. Nc3 h1=Q 59. Rxh1 Bxh1 60. cxb6 Kxb6 61. b5 cxb5 62. Kb4 Bd6+ 63. Kb3 Bc6 64. Ne2 Bxe7 65. Nd4 Bd5+ 66. Kc3 b4+ 67. Kc2 Bc4 68. Nf5 Bc5 69. Kb2 Nd6 70. Ne7 Bd4+ 71. Kc2 b3+ 72. Kd2 b2 73. Kc2 Bd3+ 74. Kd2 b1=Q 75. Nc8+ Kc7 76. Nb6 Qc2+ 77. Ke1 Qe2# 0-1
2023.06.20 Titled Tue 20th Jun Late
919123 Koellner, Ruben Gideon (2429) Sanchez, Robert (1966) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 c6 7. Bb2 Bf5 8. a4 h6 9. Be2 Re8 10. O-O g5 11. cxd5 cxd5 12. b5 Nbd7 13. Qb3 Rc8 14. Rfc1 e6 15. a5 Rxc1+ 16. Rxc1 Qxa5 17. Ra1 Qb6 18. Bc3 Rc8 19. Ba5 Qd6 20. Bb4 Qb8 21. Qa3 Kh7 22. h3 Ne4 23. Nxe4 Bxe4 24. Bd6 Qa8 25. Qxa7 Rc1+ 26. Rxc1 Qxa7 27. Rc7 Nf6 28. Rxf7 Kg8 29. Rc7 Qa2 30. Bf1 Qb1 31. Be5 Bxf3 32. gxf3 Ne8 33. Rxb7 Bxe5 34. dxe5 Qf5 35. b6 Qxe5 36. Rd7 Nd6 37. b7 Nxb7 38. Rxb7 h5 39. Kg2 d4 40. exd4 Qxd4 41. Re7 g4 42. hxg4 hxg4 43. Rxe6 gxf3+ 44. Kxf3 Kf7 45. Re4 Qc3+ 46. Kg2 Qe1 47. Rxe1 1-0
2023.06.20 Titled Tue 20th Jun Late
919344 Koellner, Ruben Gideon (2429) Grigoriants, S RUS (2562) 1/2-1/2
1. d4 Nf6 2. Nf3 d5 3. e3 c6 4. Nbd2 Bf5 5. Ne5 e6 6. g4 Be4 7. f3 Bg6 8. h4 h5 9. Nxg6 fxg6 10. Bd3 Kf7 11. g5 Ng8 12. c4 Bd6 13. e4 Ne7 14. Qc2 Rf8 15. e5 Bb4 16. O-O dxc4 17. Qxc4 Bxd2 18. Bxd2 Nd7 19. Bb4 Nb6 20. Qc5 Nbd5 21. Be4 Nxb4 22. Qxb4 Qb6 23. Qc3 Rad8 24. Rad1 Rd7 25. Rd2 Rfd8 26. Rfd1 Nf5 27. Bxf5 gxf5 28. Kh2 Rd5 29. b4 g6 30. a3 R8d7 31. Kg3 Qd8 32. Kf4 Qc7 33. Ke3 Qb6 34. f4 a5 35. Qc4 axb4 36. axb4 Rb5 37. Rb1 Rd8 38. Ra2 Rbd5 39. Rd1 R8d7 40. Rd3 Rb5 41. Ra4 Rd8 42. Rb3 Rbd5 43. Rd3 Rb5 44. Rb3 Rd7 45. Rd3 Rd8 1/2-1/2
2023.06.20 Titled Tue 20th Jun Late
919546 Erdogmus, Yagiz Kaan (2475) Koellner, Ruben Gideon (2429) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. dxe5 Nxe5 7. Nxe5 dxe5 8. Qxd8+ Bxd8 9. f3 c6 10. a4 a5 11. Be3 Nd7 12. O-O-O Bb6 13. Rhe1 Bxe3+ 14. Rxe3 Nc5 15. b3 Ke7 16. Nb1 Bd7 17. Na3 Rad8 18. Rc3 b6 19. Bf1 Be6 20. Bc4 Rxd1+ 21. Kxd1 Rd8+ 22. Ke1 Bc8 23. Be2 Be6 24. Re3 g6 25. Bc4 Bc8 26. Re2 f6 27. Rd2 Rxd2 28. Kxd2 h6 29. Bg8 Kf8 30. Bc4 Ke7 31. Kc1 f5 32. exf5 gxf5 33. c3 Kf6 34. Kd2 Kg5 35. Bg8 Ba6 36. Ke3 f4+ 37. Kf2 e4 38. Bc4 e3+ 39. Ke2 Bc8 40. Nc2 b5 41. axb5 cxb5 42. Bxb5 Nxb3 43. g3 Bb7 44. Bd7 Nc1+ 45. Kd1 Nd3 46. Ke2 Nc1+ 47. Kd1 Na2 48. h4+ Kf6 49. gxf4 Nxc3+ 50. Ke1 e2 51. Nd4 a4 52. Bb5 Nxb5 53. Nxb5 Bxf3 54. Nd4 a3 55. Nc2 a2 56. Kf2 Bg4 57. Ke1 Bf5 58. Na1 Bd3 59. Kd2 Bc4 60. Ke1 Kf5 61. Nc2 Kxf4 62. Kf2 Kg4 63. Ne3+ Kxh4 64. Nc2 Kg5 65. Ke1 h5 66. Kd2 h4 67. Kc3 a1=Q+ 68. Nxa1 e1=Q+ 69. Kxc4 Qxa1 0-1
2023.06.20 Titled Tue 20th Jun Late
919676 Livaic, Leon (2574) Koellner, Ruben Gideon (2429) 1/2-1/2
1. d4 d6 2. e4 Nf6 3. f3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Ke8 7. Be3 c6 8. a4 a5 9. Nd2 Na6 10. c3 Bc5 11. Ke2 Bxe3 12. Kxe3 Nc5 13. Ne2 Ke7 14. Rhd1 Rd8 15. Nc1 b6 16. Ncb3 Nxb3 17. Bxb3 Ba6 18. Nc4 Bxc4 19. Bxc4 Rxd1 20. Rxd1 Ne8 21. g3 Nd6 22. Bb3 Rd8 23. Rb1 Rb8 24. Bc2 b5 25. axb5 Nc4+ 26. Ke2 Rxb5 27. Ba4 Rxb2+ 28. Rxb2 Nxb2 29. Bxc6 Nc4 30. Kd3 Nb6 31. f4 f6 32. h4 Kd6 33. Be8 Kc5 34. Bf7 h6 35. fxe5 fxe5 36. g4 g5 37. hxg5 hxg5 38. Be6 Na4 39. Bb3 Nb2+ 40. Kc2 Nc4 41. Kd3 Nb6 42. Be6 Kc6 43. Kc2 Kd6 44. Bf7 Kc5 45. Kb3 Kb5 46. Be8+ Kc5 47. Bf7 Kd6 48. Bg8 Kc6 49. Bf7 Kc7 50. Bg8 Kd6 51. Ka3 Kc5 52. Kb3 Kb5 53. Be6 Kc5 54. Bf7 1/2-1/2
2023.06.20 Titled Tue 20th Jun Late
919764 Koellner, Ruben Gideon (2429) Sanal, V (2577) 0-1
1. d4 d5 2. Nf3 Nf6 3. Nbd2 Bf5 4. e3 e6 5. Ne5 Nbd7 6. g4 Bg6 7. h4 h6 8. Nxg6 fxg6 9. Bd3 Kf7 10. Qf3 Be7 11. g5 hxg5 12. hxg5 Rxh1+ 13. Qxh1 Ne8 14. Qf3+ Kg8 15. Bxg6 Nd6 16. Qh3 Nf8 17. Bd3 Bxg5 18. Nf3 Bh6 19. Bd2 b6 20. O-O-O c5 21. c3 cxd4 22. exd4 Bxd2+ 23. Kxd2 Qf6 24. Ke2 Nf7 25. Qg3 Nd7 26. Bg6 Nh8 27. Bd3 Nf7 28. Bb5 Rd8 29. Rg1 Nf8 30. Ne5 Nxe5 31. dxe5 Qh6 32. Bd3 Nd7 33. Qg5 Qxg5 34. Rxg5 Nc5 35. Bg6 Na4 36. f4 Nxb2 37. f5 exf5 38. Rxf5 Rd7 0-1
2023.06.20 Titled Tue 20th Jun Late
919856 Kavri, Yusuf Eren (2043) Koellner, Ruben Gideon (2429) 1-0
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Ng5 f5 5. Nc3 Be7 6. Nh3 Nf6 7. Bg5 O-O 8. e3 c5 9. Be2 Nc6 10. O-O h6 11. Bxf6 Bxf6 12. dxc5 Bxc3 13. bxc3 dxc5 14. Nf4 g5 15. Nd5 Be6 16. Qa4 Rc8 17. Rad1 Qe8 18. Rd2 Kf7 19. Bh5+ Kg7 20. Bxe8 Rfxe8 21. Rb1 b6 22. f4 exf3 23. gxf3 Ne5 24. Qxa7+ Kf8 25. Rf2 Nxc4 26. Nxb6 Rb8 27. Nd7+ Bxd7 28. Rxb8 Nxe3 29. Rxe8+ Kxe8 30. Qb8+ Kf7 31. Qc7 Ke6 32. Re2 f4 33. Rxe3+ fxe3 34. Qxc5 Be8 35. Qxe3+ Kd7 36. Kf2 Bf7 37. a4 Be6 38. a5 Bd5 39. a6 Kc6 40. a7 Kb7 41. Qc5 Bc6 42. Qxc6+ Kxc6 43. a8=Q+ Kd6 44. Qh8 Ke6 45. Qxh6+ Kf5 46. Qh3+ g4 47. Qxg4+ Kf6 48. h4 Ke5 49. h5 Kf6 50. h6 Ke7 51. h7 Kf8 52. h8=Q+ Kf7 53. Qhh5+ Kf8 54. Qh6+ Ke7 55. Qgg7+ Kd8 56. Qhh8# 1-0
2023.06.13 Titled Tue 13th Jun Early
923679 Wieczorek, Z (2150) Koellner, Ruben Gideon (2429) 1-0
1. Nf3 d6 2. c4 e5 3. Nc3 Nf6 4. g3 Be7 5. d3 O-O 6. Bg2 c6 7. O-O Be6 8. Rb1 Nbd7 9. Ng5 Bf5 10. e4 Bg6 11. f4 h6 12. Nf3 Qb6+ 13. Kh1 a5 14. f5 Bh5 15. h3 Bxf3 16. Bxf3 Rfd8 17. Qe2 Qc7 18. h4 Rab8 19. Be3 b5 20. b3 b4 21. Na4 Nc5 22. Nxc5 dxc5 23. Rg1 Nh7 24. Rbd1 Rd7 25. Qf2 Qd8 26. Be2 Qf8 27. g4 f6 28. Rg2 a4 29. Rdg1 axb3 30. axb3 Ra8 31. g5 fxg5 32. hxg5 Nxg5 33. Bxg5 Bxg5 34. Rxg5 hxg5 35. Rxg5 Rd6 36. Qh2 Ra1+ 37. Kg2 1-0
2023.06.13 Titled Tue 13th Jun Late
925840 Vaglio, J (2174) Koellner, Ruben Gideon (2429) 1-0
1. Nf3 d6 2. d4 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. a4 Nbd7 7. a5 c6 8. c4 Re8 9. Nc3 e5 10. dxe5 Nxe5 11. Nxe5 dxe5 12. a6 Qc7 13. axb7 Bxb7 14. Qa4 a5 15. Be3 Nd7 16. Rfd1 Bf8 17. Ne4 Be7 18. c5 Nf6 19. Nd6 Bxd6 20. cxd6 Qd7 21. Qh4 Nd5 22. Bg5 Re6 23. e4 Nb4 24. Bh3 Nc2 25. Bxe6 Qxe6 26. d7 Nd4 27. Rxd4 exd4 28. d8=Q+ Rxd8 29. Bxd8 c5 30. Qe7 Qb3 31. Qe8+ Kg7 32. Qe5+ Kf8 33. Bf6 Qe6 34. Qxe6 fxe6 35. Rxa5 Kf7 36. Ra7 Kxf6 37. Rxb7 Ke5 38. f3 c4 39. Kf2 Kd6 40. Rb5 Kc6 41. Re5 Kd6 42. f4 h6 43. h4 c3 44. bxc3 dxc3 45. Ke3 c2 46. Kd2 Ke7 47. Kxc2 Kf6 48. Kd3 g5 49. hxg5+ hxg5 50. Rxg5 Ke7 51. Re5 Kd6 52. Kd4 Kd7 53. g4 Ke7 54. f5 Kf6 55. Rxe6+ Kg5 56. Rg6+ Kf4 57. Kd5 Kg3 58. Ke6 Kh4 59. e5 Kg3 60. f6 Kf4 61. f7 Kg3 62. f8=Q Kh4 63. Qh6+ Kg3 64. Qe3+ Kh4 65. Rh6+ Kxg4 66. Rg6+ Kh5 67. Qg5# 1-0
2023.06.13 Titled Tue 13th Jun Late
926022 Koellner, Ruben Gideon (2429) Marin, Sebastian (2265) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 Bf5 4. Ne5 Nfd7 5. g4 Be6 6. Bg2 c5 7. f4 cxd4 8. exd4 f6 9. Nxd7 Qxd7 10. f5 Bf7 11. O-O Nc6 12. Bf4 h5 13. h3 hxg4 14. hxg4 g5 15. Bg3 e6 16. fxe6 Bxe6 17. Rxf6 Bg7 18. Rxe6+ Qxe6 19. c3 O-O-O 20. Na3 Rdf8 21. Qd3 Rf4 22. Bxf4 gxf4 23. Qf5 Qxf5 24. gxf5 Ne7 25. Rf1 Rh3 26. Bxh3 1-0
2023.06.13 Titled Tue 13th Jun Late
926260 Can, Melih Kaan (2061) Koellner, Ruben Gideon (2429) 0-1
1. Nf3 d6 2. g3 Nf6 3. Bg2 g6 4. O-O Bg7 5. c4 O-O 6. b3 e5 7. Bb2 Re8 8. d3 c6 9. a3 a5 10. b4 axb4 11. axb4 Rxa1 12. Bxa1 Nbd7 13. Qb3 h6 14. Nbd2 Qc7 15. Rb1 Nf8 16. b5 Bd7 17. bxc6 bxc6 18. h3 Ne6 19. Bc3 Nc5 20. Qb6 Qxb6 21. Rxb6 Na4 22. Rb3 Nxc3 23. Rxc3 e4 24. dxe4 Nxe4 25. Nxe4 Rxe4 26. Rd3 Rxc4 27. Rxd6 Be6 28. Nd2 Rc1+ 29. Kh2 c5 30. Bd5 Bxd5 31. Rxd5 c4 32. Kg2 Rd1 33. e4 c3 34. Nb3 Rxd5 35. exd5 c2 36. d6 Kf8 37. Kf3 Bb2 38. Ke4 Ke8 39. Kd5 c1=Q 40. Nxc1 Bxc1 41. Ke5 Bb2+ 42. Kd5 Kd7 43. f4 f5 44. g4 h5 45. gxh5 gxh5 46. h4 Bc3 47. Kc4 Bd2 48. Kd5 Bxf4 49. Kd4 Bxd6 50. Kd5 f4 51. Ke4 Ke6 52. Kf3 Kf5 0-1
2023.06.13 Titled Tue 13th Jun Late
926528 Koellner, Ruben Gideon (2429) Ticona Rocabado, Licael Roderick (2285) 1-0
1. d4 d5 2. Nf3 e6 3. e3 c5 4. c3 Nc6 5. Nbd2 Nf6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 e5 11. e4 Bg4 12. h3 Bh5 13. exd5 Nxd5 14. Qc2 Bg6 15. Bxg6 hxg6 16. Rfd1 Qc7 17. Ne4 Be7 18. b5 Nd4 19. Nxd4 exd4 20. Rxd4 Nf4 21. Qd2 Rfd8 22. g3 Rxd4 23. cxd4 Nd5 24. Rc1 Qd7 25. a4 Qxh3 26. Nc3 Qd7 27. Nxd5 Qxd5 28. Qe2 Bf6 29. Rc5 Qd7 30. Qf3 Re8 31. Kg2 b6 32. Rc2 Rd8 33. Rd2 Qe6 34. d5 Qd6 35. Bxf6 gxf6 36. Qe4 f5 37. Qc4 Rd7 38. Qc8+ Kg7 39. Qc3+ Qf6 40. Qc6 Rd6 41. Qc7 Qe5 42. Qxa7 Qe1 43. Rd4 1-0
2023.06.13 Titled Tue 13th Jun Late
926641 Koellner, Ruben Gideon (2429) Goltsev, Dmitry (2269) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 b6 4. e4 d5 5. e5 Ne4 6. c3 Bb7 7. Bd3 c5 8. O-O Nxd2 9. Bxd2 a6 10. Qe2 Be7 11. Ne1 Nc6 12. Be3 g6 13. f4 h5 14. Nf3 c4 15. Bc2 b5 16. a3 a5 17. g3 b4 18. axb4 axb4 19. h3 b3 20. Rxa8 Qxa8 21. Bb1 Kd7 22. g4 hxg4 23. hxg4 Qg8 24. Qg2 Na7 25. f5 gxf5 26. gxf5 Qxg2+ 27. Kxg2 Nc8 28. f6 Bf8 29. Ng5 Ke8 30. Bg6 fxg6 31. Nxe6 Nb6 32. f7+ Ke7 33. Nxf8 Kxf8 34. e6 Bc8 35. Bf4 Bxe6 36. Bd6+ Kg7 37. Be5+ Kh7 38. Rh1+ Bh3+ 39. Rxh3# 1-0
2023.06.13 Titled Tue 13th Jun Late
926902 Rodrigue-Lemieux, Shawn (2469) Koellner, Ruben Gideon (2429) 1-0
1. d4 d6 2. Bf4 Nf6 3. e3 g6 4. h3 Bg7 5. Nd2 O-O 6. Ngf3 Nc6 7. Be2 Nd7 8. Bh2 e5 9. c3 h6 10. O-O f5 11. a4 a5 12. e4 f4 13. Nc4 g5 14. dxe5 Ncxe5 15. Nfxe5 Nxe5 16. Nxe5 dxe5 17. Qb3+ Kh8 18. Rfd1 Qe7 19. f3 c6 20. Kf1 Be6 21. Bc4 Bc8 22. Bg1 h5 23. Qb6 Be6 24. Qb3 Bc8 25. Rd2 g4 26. hxg4 hxg4 27. Rad1 Qh4 28. Be6 Qh5 29. fxg4 Qh1 30. Bf5 f3 31. Qc4 Bh6 32. Rf2 Be3 33. Rxf3 Qxg1+ 34. Ke2 Qxg2+ 35. Kxe3 Bxf5 36. gxf5 Rad8 37. Qf1 Qg5+ 38. Ke2 Rxd1 39. Qxd1 Rd8 40. Rh3+ Kg7 41. f6+ Qxf6 42. Qg1+ Kf8 43. Rf3 Rd2+ 44. Kxd2 Qxf3 45. Qc5+ Kf7 46. Qxe5 Qf2+ 47. Kc1 Qe3+ 48. Kb1 Qe1+ 49. Ka2 Qe2 50. Qc7+ Ke6 51. Qxa5 Qxe4 52. Qb4 Qd5+ 53. Qb3 Kd6 54. Qxd5+ Kxd5 55. Kb3 Kc5 56. Kc2 Kc4 57. b3+ Kd5 58. Kd3 c5 59. Ke3 Ke5 60. Kf3 Kf5 61. Ke3 Ke5 62. Kd3 Kd5 63. a5 Kd6 64. Ke4 Ke6 65. c4 Kd6 66. Kf5 Kd7 67. Ke5 Kc6 68. Ke6 b5 69. axb6 Kxb6 70. Kd6 Ka5 71. Kxc5 Ka6 72. b4 Kb7 73. Kd6 Kc8 74. c5 Kb8 75. b5 Ka8 76. Kc7 Ka7 77. b6+ Ka8 78. b7+ Ka7 79. b8=Q+ Ka6 80. Qb6# 1-0
2023.06.13 Titled Tue 13th Jun Late
927049 Koellner, Ruben Gideon (2429) Gadimbayli, Abdulla (2483) 0-1
1. d4 d5 2. Nf3 Nc6 3. e3 Bg4 4. Bb5 Qd6 5. c4 dxc4 6. Nc3 Nf6 7. h3 Bxf3 8. Qxf3 a6 9. Bxc4 e5 10. dxe5 Qxe5 11. O-O Bd6 12. Rd1 Qh2+ 13. Kf1 O-O 14. Nd5 Nd7 15. Bd2 Nde5 16. Qe4 Rae8 17. Bc3 Kh8 18. Bb3 f5 19. Qf4 Qh1+ 20. Ke2 Qxg2 21. Rg1 Qxh3 22. Rh1 Qg4+ 23. Qxg4 fxg4 24. Nf4 Rxf4 25. exf4 Ng6+ 26. Kd2 Nxf4 27. Rae1 Rf8 28. Bc2 Nh3 29. Re2 h6 30. f3 Bf4+ 31. Kd1 gxf3 32. Rxh3 fxe2+ 33. Kxe2 Be5 34. Be4 Bxc3 35. Bxc6 bxc6 36. Rxc3 Rf6 37. Ra3 c5 38. Rc3 Rf5 39. Ra3 Rf6 40. Rc3 Rg6 41. Kf2 Rb6 42. b3 Rb5 43. Rd3 Kh7 44. Rd7 Ra5 45. Rd2 c4 46. bxc4 Rf5+ 47. Ke3 h5 48. Rd7 c6 49. Rd6 Rf6 50. Rd8 h4 51. Rd4 h3 52. Rh4+ Rh6 53. Rxh6+ Kxh6 54. Kf3 g5 55. Kg3 g4 56. Kh2 Kg5 57. Kg3 Kf5 58. c5 Ke5 59. a4 Kd5 60. a5 Kxc5 61. Kh2 Kb5 62. Kg3 Kxa5 63. Kh2 Kb4 64. Kg3 a5 65. Kh2 a4 66. Kg3 a3 67. Kh2 a2 68. Kg3 c5 69. Kh2 c4 70. Kg3 a1=Q 71. Kh2 Qc3 72. Kg1 Qd2 73. Kh1 c3 74. Kg1 c2 75. Kh1 c1=Q# 0-1
2023.06.12 AimChess Rapid Play-In
927770 Koellner, Ruben Gideon (2429) Kovalenko, I (2674) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 b6 5. Bd3 Bb7 6. O-O cxd4 7. exd4 Be7 8. c3 d6 9. Qe2 Nbd7 10. Re1 a6 11. a4 Qc7 12. Nf1 O-O 13. Ng3 Rfe8 14. h3 Bf8 15. Bg5 h6 16. Bd2 e5 17. dxe5 dxe5 18. Ne4 Qc6 19. Nxf6+ Nxf6 20. Bc4 Qc7 21. Bb3 Rad8 22. Be3 e4 23. Nd4 Qe5 24. Rad1 Bd6 25. g3 Bc5 26. Bf4 Qh5 27. Qxh5 Nxh5 28. Be3 Nf6 29. Nc2 Kf8 30. Bxc5+ bxc5 31. Ne3 Bc6 32. Bc2 g6 33. Nc4 Bd5 34. Ne3 Be6 35. Kg2 Rb8 36. Rb1 a5 37. b3 Nd5 38. Nxd5 Bxd5 39. Kg1 f5 40. Red1 Red8 41. h4 Ke7 42. Kf1 Rd6 43. Ke2 Ke6 44. Ke3 Ke5 45. Rd2 Rdb6 46. Rbd1 Be6 47. c4 Rxb3+ 48. Bxb3 Rxb3+ 49. Ke2 Bxc4+ 50. Ke1 Bd3 51. f3 c4 52. fxe4 fxe4 53. Rf2 c3 54. Rf8 Kd4 55. Rc8 Ke3 56. Rc1 c2 57. Rc3 Rxc3 0-1
2023.06.12 AimChess Rapid Play-In
927869 Santos Ruiz, Miguel (2592) Koellner, Ruben Gideon (2429) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nge2 c6 5. a4 a5 6. h3 Na6 7. g4 h6 8. Bg2 Be7 9. O-O Nb4 10. f4 O-O 11. Be3 exf4 12. Nxf4 Nh7 13. Nce2 Na6 14. Qd2 Nc7 15. Ng3 Ne6 16. Nf5 Bg5 17. Nh5 g6 18. h4 Bxe3+ 19. Qxe3 gxf5 20. Qxh6 Qxh4 21. Rxf5 Qxg4 22. Ra3 Nxd4 23. Nf6+ Nxf6 24. Rg5+ Qxg5 25. Qxg5+ Kh7 26. Qxf6 c5 27. Qh4+ Kg6 28. Rg3+ Bg4 29. Rxg4# 1-0
2023.06.12 AimChess Rapid Play-In
927960 Raja, H (2510) Koellner, Ruben Gideon (2429) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. f3 Bd6 9. Nh3 Ke7 10. Nf2 Nbd7 11. Bg5 a6 12. a4 h6 13. Bh4 g5 14. Bg3 Nh5 15. Nd3 Nf4 16. Bxf4 exf4 17. h4 Ne5 18. Ke2 Nxd3 19. Kxd3 Be5 20. Nd1 Rag8 21. Nf2 Rd8+ 22. Ke2 Bxb2 23. Rab1 Bc3 24. Nd3 b6 25. Rb3 Bd4 26. Nb4 Kf6 27. Nxa6 Be3 28. hxg5+ Kxg5 29. Rd3 Rxd3 30. cxd3 c6 31. Nb4 Ra8 32. Ra1 e5 33. Nxc6 Rc8 34. Nb4 Bd4 35. Rb1 Rc3 36. Kd2 Ra3 37. Nc2 Rxa4 38. Nxd4 exd4 39. Rb5+ Kh4 40. Rxb6 Ra2+ 41. Ke1 Rxg2 42. Rxh6+ Kg3 43. Kf1 Ra2 44. e5 Kxf3 45. Rh3+ Kg4 46. Rh8 Kg3 47. Rf8 f3 48. Rg8+ Kf4 49. e6 Ke3 50. Kg1 f2+ 51. Kg2 Ra1 52. Rf8 Rg1+ 53. Kh2 Rg7 54. Kh3 Ke2 0-1
2023.06.12 AimChess Rapid Play-In
928038 Koellner, Ruben Gideon (2429) Mendonca, Leon Luke (2623) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 Be7 5. Bd3 O-O 6. O-O Nbd7 7. c3 c5 8. Ne5 Nxe5 9. dxe5 Nd7 10. f4 c4 11. Bc2 Nc5 12. e4 b5 13. exd5 Qxd5 14. Nf3 Bb7 15. Qxd5 Bxd5 16. Be3 a5 17. a3 Rab8 18. Bd4 Nb3 19. Be3 Nxa1 20. Rxa1 Bxf3 21. gxf3 Rbc8 22. Kf2 Rfd8 23. Ke2 Bc5 24. Bxc5 Rxc5 25. Be4 g6 26. a4 Rb8 27. Ke3 b4 28. Kd4 Rc7 29. h4 Kg7 30. h5 bxc3 31. bxc3 Rb2 32. Rh1 Rd2+ 33. Ke3 Ra2 34. h6+ Kf8 35. Rd1 Ke7 36. Rb1 Rh2 37. Rb5 Ra7 38. Kd4 Rxh6 39. Kxc4 Rh1 40. Rb8 Rc7+ 41. Kb5 Rxc3 42. Kxa5 Ra1 43. Kb4 Rca3 44. Ra8 f5 45. Bc6 h5 46. Bb5 Rxf3 47. Ra7+ Kf8 48. Kc5 Rd1 49. a5 Rd5+ 50. Kb4 Rxf4+ 51. Bc4 h4 52. a6 h3 53. Rc7 h2 54. a7 Rd8 55. Rh7 Ra8 56. Rh8+ Kg7 57. Rxa8 h1=Q 58. Rb8 Qd5 59. a8=Q Rxc4+ 60. Ka3 Qxa8+ 61. Rxa8 Rc5 62. Ra7+ Kh6 63. Kb4 Rxe5 64. Kc4 g5 65. Kd4 Re4+ 66. Kc5 g4 67. Kd6 Kg5 68. Rg7+ Kf4 0-1
2023.06.12 AimChess Rapid Play-In
928131 Wagner, De (2598) Koellner, Ruben Gideon (2429) 1-0
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. Qb3 b6 6. h3 c5 7. d5 Bg7 8. Nd2 O-O 9. e4 Bc8 10. Be2 e6 11. O-O Re8 12. a3 exd5 13. cxd5 Ba6 14. Re1 Bxe2 15. Rxe2 Na6 16. Nc4 Nc7 17. Bf4 Bf8 18. a4 Rb8 19. Rd1 a6 20. e5 Nh5 21. Bh2 dxe5 22. d6 Ne6 23. d7 Re7 24. Nxe5 Nd4 25. Rxd4 cxd4 26. Nd5 Rxe5 27. Rxe5 Rb7 28. Rxh5 Rxd7 29. Re5 Bg7 30. Nxb6 Bxe5 31. Bxe5 Re7 32. f4 d3 33. Nd5 Re6 34. Qxd3 Qa5 35. Nf6+ Kf8 36. Nxh7+ Kg8 37. Nf6+ Kf8 38. Kh2 Kg7 39. Nd5+ Kh7 40. b4 Qxa4 41. Qg3 g5 42. Qxg5 Rg6 43. Qh5+ Kg8 44. Qh8# 1-0
2023.06.12 AimChess Rapid Play-In
928220 Jonkman, H (2333) Koellner, Ruben Gideon (2429) 0-1
1. d4 d6 2. e4 Nf6 3. Bd3 e5 4. Nf3 Nbd7 5. O-O exd4 6. Nxd4 Be7 7. Re1 O-O 8. Nc3 Re8 9. Bf4 Ne5 10. Bf1 Bf8 11. h3 c6 12. a4 a5 13. Nf3 Ng6 14. Bh2 Be6 15. e5 dxe5 16. Nxe5 Nxe5 17. Bxe5 Nd5 18. Qf3 Nxc3 19. Bxc3 Bd5 20. Qg3 Qb6 21. Bd3 g6 22. Qf4 Bg7 23. Qd2 Bxc3 24. Qxc3 Qb4 25. Qf6 Rxe1+ 26. Rxe1 Qxe1+ 0-1
2023.06.12 AimChess Rapid Play-In
928292 Koellner, Ruben Gideon (2429) Sourath, Biswas (2305) 1/2-1/2
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 a5 7. b5 c5 8. dxc5 Nfd7 9. Ba3 Bxa1 10. Qxa1 Nf6 11. cxd5 Qxd5 12. Bc4 Qh5 13. O-O Re8 14. Ne5 Be6 15. Bxe6 fxe6 16. Ndf3 Nbd7 17. Nxd7 Nxd7 18. Qd4 Qd5 19. Qc3 Rac8 20. e4 Qxe4 21. Rd1 Nf6 22. Qxa5 Ra8 23. Qc3 Qa4 24. Rd3 Red8 25. Rxd8+ Rxd8 26. h3 Qxb5 27. Qe5 Qb1+ 28. Kh2 Qxa2 29. c6 Qxa3 30. c7 Re8 31. Qxe6+ Kg7 32. c8=Q Rxc8 33. Qxc8 Qd6+ 34. g3 Qc6 35. Qxc6 bxc6 36. Ne5 c5 37. Kg2 e6 38. Kf3 Kf8 39. Nd3 Nd7 40. Ke4 Ke7 41. Nf4 Kd6 42. Kd3 e5 43. Ne2 Nb6 44. Nc3 c4+ 45. Ke4 Nd7 46. Na4 Nf6+ 47. Ke3 Kd5 48. h4 Nd7 49. Nc3+ Kc5 50. h5 Nf6 51. hxg6 hxg6 52. Na2 Kb5 53. f4 e4 54. Kd4 e3 55. Kxe3 Kc5 56. Nc3 Nd5+ 57. Nxd5 Kxd5 58. g4 c3 59. Kd3 c2 60. Kxc2 Ke4 61. f5 gxf5 62. g5 Ke5 63. Kd3 f4 64. Ke2 Kf5 65. Kf3 Kxg5 66. Kf2 Kg4 67. Kg2 f3+ 68. Kf2 Kf4 69. Kf1 Ke3 70. Ke1 f2+ 71. Kf1 Kf3 1/2-1/2
2023.06.06 1st Munich Pfingst-Open A
929601 Demchenko, A (2623) Koellner, Ruben Gideon (2426) 1/2-1/2
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. a4 a5 6. Be3 Bxe3 7. fxe3 d6 8. Nc3 Be6 9. Bb5 O-O 10. Bxc6 bxc6 11. O-O Bg4 12. h3 Bxf3 13. Qxf3 d5 14. Rad1 dxe4 15. Nxe4 Nxe4 16. Qxe4 Qd5 17. Qf5 Rae8 18. b3 Qc5 19. d4 Qb6 20. Kh1 g6 21. Qg5 Qb4 22. Rd3 exd4 23. Rxd4 Qc3 24. Rc4 Qd2 25. Rf3 Re6 26. Qf4 Rd6 27. Kh2 Qd1 28. Rc5 Rd2 29. Rf1 Qe2 30. Rg5 Rxc2 31. Rf3 Rc3 32. h4 Qd2 33. Rxa5 Rxb3 34. Rc5 1/2-1/2
2023.06.05 1st Munich Pfingst-Open A
929573 Koellner, Ruben Gideon (2426) Bharath, Subramaniyam H (2517) 1-0
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 c6 8. Qc2 Nbd7 9. h3 Re8 10. Nf3 Nf8 11. Bf4 Ng6 12. Bh2 Bd6 13. Bxd6 Qxd6 14. O-O-O Bd7 15. g4 Rac8 16. g5 Ne4 17. Nxe4 dxe4 18. Bxe4 Qe6 19. Ne5 c5 20. Nxd7 cxd4 21. Nc5 Qe7 22. exd4 b6 23. Bf5 Rc7 24. Rhe1 Qxg5+ 25. Kb1 Rxe1 26. Rxe1 Re7 27. Ne6 fxe6 28. Bxe6+ Kf8 29. d5 Qf6 30. Qc8+ Re8 31. Qc7 Nf4 32. Qd6+ Re7 33. Re4 g5 34. Re5 Kg7 35. Rf5 Rxe6 36. Rxf6 Rxf6 37. Qe7+ Rf7 38. Qxg5+ Ng6 39. d6 Rd7 40. h4 h5 41. f4 1-0
2023.06.05 1st Munich Pfingst-Open A
935781 Jobava, Ba (2578) Koellner, Ruben Gideon (2426) 0-1
1. e4 d6 2. f4 e5 3. Nf3 Nf6 4. Nc3 exf4 5. d4 Nh5 6. Bc4 g6 7. g4 Bxg4 8. Rg1 Bxf3 9. Qxf3 Qh4+ 10. Kd1 Nc6 11. Ne2 Bh6 12. Bd2 Nf6 13. c3 Qh5 14. Qh1 Ng4 15. Kc2 Na5 16. Bxf7+ Kxf7 17. Nxf4 Bxf4 18. Raf1 Ne3+ 19. Bxe3 Qe2+ 20. Kb1 Qxe3 21. Rg3 Qe2 22. Rxf4+ Kg7 0-1
2023.06.04 1st Munich Pfingst-Open A
935757 Koellner, Ruben Gideon (2426) Bracker, F (2311) 1-0
1. d4 Nf6 2. Bg5 e6 3. Nd2 c5 4. e3 cxd4 5. exd4 Be7 6. Ngf3 b6 7. c3 O-O 8. Bxf6 Bxf6 9. Bd3 Ba6 10. Ne4 Bxd3 11. Qxd3 d5 12. Nxf6+ Qxf6 13. Ne5 Qe7 14. O-O Nd7 15. Rae1 Nxe5 16. Rxe5 g6 17. Qf3 Rad8 18. Rfe1 Rfe8 19. Qg3 b5 20. a3 a5 21. f4 b4 22. axb4 axb4 23. f5 bxc3 24. bxc3 Qf6 25. Qg4 Rd6 26. Rf1 Qg7 27. f6 Qh6 28. Qg3 Rc6 29. Re3 Qh5 30. Qf4 e5 31. Rxe5 Rxe5 32. dxe5 Rc4 33. Qd2 Re4 34. Ra1 h6 35. Qxd5 1-0
2023.06.03 1st Munich Pfingst-Open A
935682 Motylev, A (2604) Koellner, Ruben Gideon (2426) 1-0
1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Nd5 7. O-O Be7 8. a4 a6 9. Bc4 Nb6 10. Bb3 d5 11. exd6 Qxd6 12. a5 Nd5 13. Nxd4 O-O 14. Nxc6 bxc6 15. Bc2 Qf6 16. Nd2 Rd8 17. Qf3 Be6 18. Ra4 Qxf3 19. Nxf3 c5 20. Re1 Bf6 21. Ng5 Bxg5 22. Bxg5 Re8 23. Rae4 Rab8 24. Ba4 Rec8 25. Bc1 c6 26. Re5 c4 27. R5e2 Rb7 28. f3 Nf6 29. Bf4 Rd7 30. Re5 Rb7 31. R5e2 Rd7 32. h4 h6 33. Kf2 Rd5 34. Re5 Rdd8 35. R5e2 Rd5 36. b4 cxb3 37. Bxb3 Rxa5 38. Rxe6 Ra3 39. Rxf6 gxf6 40. Rb1 c5 41. Bc1 Ra5 42. Bc4 Ra4 43. Bd5 Rc7 44. c4 Kg7 45. Rb6 a5 46. Bb2 Rb4 47. Bxf6+ Kg6 48. Be4+ Kh5 49. g4# 1-0
2023.06.03 1st Munich Pfingst-Open A
935726 Koellner, Ruben Gideon (2426) Hrebenshchykova, Yelyzaveta (2335) 1/2-1/2
1. d4 e6 2. Nf3 d5 3. e3 Nf6 4. Nbd2 c5 5. b3 Nc6 6. Bb2 b6 7. Bb5 Bb7 8. Ne5 Rc8 9. c4 Bd6 10. dxc5 bxc5 11. Ng4 Be7 12. cxd5 exd5 13. Rc1 a6 14. Bd3 Nxg4 15. Qxg4 Bf6 16. Bxf6 Qxf6 17. Rxc5 O-O 18. Qh3 g6 19. Bb1 Nb4 20. Rxc8 Rxc8 21. O-O Qb2 22. Qd7 Qxd2 23. Qxb7 Rc1 24. g3 Rxf1+ 25. Kxf1 Nd3 26. Qc8+ Kg7 27. Bxd3 Qxd3+ 28. Ke1 Qb1+ 29. Kd2 Qxa2+ 30. Qc2 Qa3 31. Qd3 Qb2+ 32. Qc2 Qa3 33. Qc3+ Kg8 34. Qc8+ Kg7 35. Qc3+ Kg8 36. Qc8+ Kg7 37. Qc3+ 1/2-1/2
2023.06.02 1st Munich Pfingst-Open A
935661 Kazarian, Anna-Maja (2170) Koellner, Ruben Gideon (2426) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. g3 e5 5. Bg2 c6 6. a4 Be7 7. Nge2 O-O 8. O-O b6 9. f4 Bb7 10. h3 Re8 11. Kh2 h6 12. g4 exf4 13. Bxf4 Nf8 14. Ng3 Ng6 15. Be3 Nh7 16. Qf3 Bf6 17. Qf2 Qc7 18. Nf5 Ba6 19. Rfe1 Bc8 20. Ne2 c5 21. e5 dxe5 22. Bxa8 Bxf5 23. gxf5 exd4+ 24. Ng3 Ne5 25. Bf4 Rxa8 26. Re2 Ng5 27. Nh5 Re8 28. Qg2 Nef3+ 29. Kh1 Rxe2 30. Bxc7 Rxg2 31. Nxf6+ gxf6 32. Kxg2 Nh4+ 33. Kf2 Nxf5 34. Bb8 a6 35. Ba7 Nxh3+ 36. Kf3 Ng5+ 37. Kf4 Ne3 38. a5 b5 39. Rg1 Kh7 40. Rh1 Nxc2 41. Kf5 Ne3+ 42. Kxf6 Ne4+ 43. Kxf7 d3 44. Bxc5 Nxc5 45. Rg1 Nf5 46. Kf6 Ng3 47. Ke5 d2 48. Kd5 Nce4 49. Kc6 Nf2 50. Kb6 Ne2 51. Rf1 d1=Q 52. Rxd1 Nxd1 53. Kxa6 Nxb2 54. Kb7 Na4 55. Kc7 Nd4 56. a6 b4 0-1
2023.06.01 1st Munich Pfingst-Open A
935634 Koellner, Ruben Gideon (2426) Khandelwal, A (2205) 1-0
1. d4 Nf6 2. Bg5 c5 3. d5 Ne4 4. Bf4 e6 5. f3 Bd6 6. Bxd6 Nxd6 7. e4 b5 8. dxe6 dxe6 9. e5 Qh4+ 10. g3 Qb4+ 11. Nc3 Nf5 12. Qd2 O-O 13. O-O-O Nc6 14. a3 Qa5 15. Nxb5 Qb6 16. Nd6 Nxe5 17. Nxf5 exf5 18. Qc3 Re8 19. Re1 Qf6 20. Nh3 Bb7 21. Bb5 Re7 22. Re3 Bxf3 23. Rhe1 Be4 24. Nf2 Qb6 25. Nxe4 fxe4 26. Rxe4 f6 27. Bc4+ Kh8 28. g4 Rd8 29. g5 Rd4 30. gxf6 Qxf6 31. Rxd4 cxd4 32. Qb4 h6 33. Rf1 Nf3 34. Rxf3 Qxf3 35. Qxe7 Qh1+ 36. Kd2 Qxh2+ 37. Kd3 Qg3+ 38. Kxd4 Qh4+ 39. Qxh4 1-0
2023.05.31 1st Munich Pfingst-Open A
935604 Schnabel, Bennett (2063) Koellner, Ruben Gideon (2426) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. a3 Bd6 7. Bc4 Ke7 8. Bg5 c6 9. f3 Nd7 10. Nge2 b5 11. Bd3 Nc5 12. Kf2 a5 13. Ng3 Nxd3+ 14. cxd3 Rd8 15. Be3 Be6 16. Rhd1 g6 17. d4 Bb3 18. dxe5 Bxe5 19. Rxd8 Rxd8 20. h3 h5 21. Rc1 Rd3 22. Nge2 Kd7 23. Nf4 Rd6 24. g4 hxg4 25. hxg4 Nh7 26. Ng2 b4 27. axb4 axb4 28. Ne2 Rd1 29. Rxd1+ Bxd1 30. Bd4 Bd6 31. e5 Be7 32. f4 c5 33. Be3 Ke6 34. g5 Kd5 35. Ke1 Ba4 36. Kd2 Ke4 37. Ne1 c4 38. Ng3+ Kd5 39. Ba7 Nf8 40. Nc2 Bxc2 41. Kxc2 Ne6 42. Be3 Bc5 43. Bd2 b3+ 44. Kc1 Bf2 45. Ne2 Bd4 46. Ng3 Nc5 0-1
2023.05.30 2nd Laimer Pfingst-Open
937545 Koellner, Ruben Gideon (2426) Souhardo, Basak (2400) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 b6 5. Bd3 Bb7 6. Ne5 Bd6 7. f4 O-O 8. Qf3 c5 9. c3 Qe7 10. O-O Nfd7 11. Qh3 Nf6 12. Qf3 Nfd7 13. Qh3 Nf6 14. g4 Ne4 15. Nxe4 dxe4 16. Bc2 f6 17. Nc4 Bc7 18. Qg2 f5 19. Ne5 Bxe5 20. dxe5 Nc6 21. Bd2 Rad8 22. Rfd1 c4 23. Be1 Qc5 24. Bf2 Rd3 25. Bxd3 exd3 1/2-1/2
2023.05.30 2nd Laimer Pfingst-Open
937564 Koellner, Ruben Gideon (2426) Korneev, O (2457) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. h3 e6 5. g4 Be4 6. Nbd2 c5 7. Nxe4 Nxe4 8. Nd2 Nxd2 9. Bxd2 Nc6 10. c3 Be7 11. Bg2 cxd4 12. exd4 Bg5 13. Be3 Bxe3 14. fxe3 Qh4+ 15. Kd2 O-O 16. Qe1 Qd8 17. Qe2 b5 18. Rhc1 Rb8 19. Qd3 e5 20. e4 exd4 21. exd5 dxc3+ 22. Rxc3 Ne5 23. Qd4 Nc4+ 24. Kc2 Re8 25. Bf3 Qd6 26. Qf2 Rbc8 27. a3 b4 28. axb4 Qxb4 29. Ra2 Nxb2 30. Ra3 Qxa3 0-1
2023.05.29 2nd Laimer Pfingst-Open
937516 Koellner, Ruben Gideon (2426) Deepan, C (2435) 1-0
1. d4 e6 2. Nf3 c5 3. c3 Nf6 4. Bg5 d5 5. e3 Nbd7 6. Nbd2 Be7 7. Bd3 b6 8. Ne5 Nxe5 9. dxe5 Nd7 10. Bxe7 Qxe7 11. f4 Bb7 12. O-O f6 13. Qh5+ Qf7 14. Qh3 O-O-O 15. e4 fxe5 16. exd5 Bxd5 17. fxe5 Qe7 18. Rae1 Rhf8 19. Nf3 h6 20. Be4 Bxa2 21. Ra1 Bc4 22. Rfc1 Nb8 23. b3 Rf4 24. Ba8 Bxb3 25. Nd4 Bc4 26. Ra4 Rdxd4 27. cxd4 b5 28. Rcxc4 bxc4 29. d5 Rf5 30. Qa3 Qf8 31. Qa1 exd5 32. Rxa7 Rf7 33. Bxd5 Re7 34. Qa5 Rxa7 35. Qxa7 1-0
2023.05.29 2nd Laimer Pfingst-Open
937528 Sorensen, Hampus (2449) Koellner, Ruben Gideon (2426) 1/2-1/2
1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 c6 7. O-O Nbd7 8. Qc2 O-O 9. Rd1 b6 10. Bf4 Ba6 11. Ne5 Rc8 12. cxd5 Nxd5 13. Nc3 Nxe5 14. Bxe5 f6 15. Bf4 Nxf4 16. gxf4 f5 17. e3 Rc7 18. Qa4 Qc8 19. Rd2 Kh8 20. Ne2 Bb5 21. Qb3 Qa6 22. Nc1 Qa5 23. Qd1 c5 24. dxc5 bxc5 25. Nb3 Qb4 26. a3 Qa4 27. Rc1 Rb8 28. Nd4 Qxd1+ 29. Rdxd1 Bd7 30. Rd2 g5 31. fxg5 Bxg5 32. Rdc2 Be7 33. b4 Rbc8 34. b5 e5 35. Nc6 Bxc6 36. Bxc6 Rd8 37. a4 Rd3 38. Rc3 Rd2 39. R3c2 Rd3 40. Ra2 f4 41. exf4 exf4 42. Rac2 1/2-1/2
2023.05.28 2nd Laimer Pfingst-Open
937491 Koellner, Ruben Gideon (2426) Rottenwohrer Suarez, Juan (2265) 1-0
1. d4 Nf6 2. Bg5 d5 3. e3 c5 4. Bxf6 gxf6 5. dxc5 e6 6. c4 dxc4 7. Nd2 Bxc5 8. Bxc4 Nc6 9. Ngf3 a6 10. Rc1 Be7 11. O-O O-O 12. a3 Kh8 13. Ba2 Bd7 14. Bb1 Rg8 15. Ne4 Qc7 16. Ng3 Rad8 17. Qd3 Rg6 18. Qc3 Rh6 19. Rfd1 Rg8 20. Be4 Be8 21. Nd4 Qb6 22. Nxc6 bxc6 23. b4 a5 24. bxa5 Qb5 25. a4 Qxa4 26. Ra1 Qb5 27. a6 Qb8 28. a7 Qa8 29. Qb2 1-0
2023.05.28 2nd Laimer Pfingst-Open
937502 Kobl, Rudolf (2100) Koellner, Ruben Gideon (2426) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Ke8 7. Nf3 Bd6 8. h3 c6 9. a4 a5 10. Be3 Nbd7 11. O-O h6 12. Rfd1 Bb4 13. Nd2 Ke7 14. f3 Bc5 15. Nf1 g6 16. Rd2 Bxe3+ 17. Nxe3 Nb6 18. Rad1 Nfd7 19. b3 Nc5 20. Bf1 Be6 21. Nb1 f5 22. exf5 gxf5 23. Na3 f4 24. Nec4 Bxc4 25. Nxc4 Nxc4 26. Bxc4 Rad8 27. Rxd8 Rxd8 28. Rxd8 Kxd8 29. g4 fxg3 30. Kg2 Nd7 31. Kxg3 Nf6 32. Be2 Ke7 33. f4 Kd6 34. fxe5+ Kxe5 35. Bd3 Ne4+ 36. Kf3 Nc3 37. Kg4 b5 38. Kh5 bxa4 39. bxa4 Nxa4 40. Kxh6 Kf6 41. h4 Nc3 42. Kh7 a4 43. h5 a3 44. Bc4 a2 45. Bxa2 Nxa2 46. Kg8 Kg5 47. Kf7 Nb4 48. Ke6 Nxc2 49. Kd6 Nb4 50. Kc5 Kxh5 51. Kxb4 Kg5 52. Kc5 Kf6 53. Kxc6 1/2-1/2
2023.05.27 2nd Laimer Pfingst-Open
937467 Koellner, Ruben Gideon (2426) Mueller, Ri (2189) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 g6 4. Nbd2 Bg7 5. b4 a5 6. b5 O-O 7. c4 c6 8. a4 cxb5 9. axb5 dxc4 10. Bxc4 b6 11. Ba3 Bb7 12. O-O Re8 13. Ne5 e6 14. Be2 Nd5 15. Rc1 Bf8 16. Bxf8 Rxf8 17. Bf3 Ra7 18. Ndc4 Nb4 19. Bxb7 Rxb7 20. Qf3 Rc7 21. Nd2 f6 22. Nec4 Nd7 23. Qg3 e5 24. Rcd1 Qe7 25. dxe5 Nxe5 26. Nxb6 Qc5 27. Ne4 Qxb6 28. Rd6 Qxb5 29. Nxf6+ Rxf6 30. Rxf6 Rf7 31. Re6 Ned3 32. Qd6 Qd5 33. Re8+ Kg7 34. Qb8 Nxf2 35. Rg8+ Kh6 36. Rf8 Nbd3 37. Rxf7 Qxf7 38. Qd8 Qf5 39. Qh4+ Qh5 40. Qxh5+ Kxh5 41. Ra1 Ng4 42. Rxa5+ Kh6 43. h3 Nge5 44. Kf1 Kg5 45. Ke2 h5 46. Rd5 Nf4+ 47. exf4+ Kxf4 48. g3+ Ke4 49. Ra5 Nf7 50. Ra4+ Kf5 51. Ke3 Kf6 52. Ra6+ Kf5 53. Ra5+ Kf6 54. Kf4 Kg7 55. Ra7 Kf6 56. Ra6+ Kg7 57. Rb6 Kh7 58. Rb7 Kg7 59. Ke4 Kf6 60. Rb6+ Kg5 61. h4+ Kh6 62. Kd5 Kg7 63. Ke6 Nd8+ 64. Ke7 Nf7 65. Rb7 Nh6 66. Ke6+ Kg8 67. Kf6 Nf5 68. Kxg6 1-0
2023.05.27 2nd Laimer Pfingst-Open
937472 Dobrocmyslov, A (2288) Koellner, Ruben Gideon (2426) 1/2-1/2
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4 O-O 6. e3 b6 7. Bd3 Ba6 8. cxd5 Nxd5 9. Nxd5 Qxd5 10. Bxc7 Qa5+ 11. Kf1 Bxd3+ 12. Qxd3 Na6 13. Bg3 Nb4 14. Qb3 Rfc8 15. h3 Rc2 16. Kg1 Rac8 17. Kh2 Qa6 18. Rhd1 Qe2 19. Rab1 Nd5 20. Ne1 R2c4 21. Qd3 Qh5 22. Nf3 Rc2 23. a3 f5 24. Kg1 Nf6 25. Bh4 h6 26. Bxf6 Bxf6 27. Qb3 Qf7 28. Ne5 Bxe5 29. dxe5 R2c5 30. f4 Qg6 31. Rd6 Rc4 32. Rbd1 Kh7 33. R1d4 Rc2 34. Rd2 R2c4 35. R2d4 Rc2 36. Rd2 R2c4 37. Kh2 h5 38. g3 h4 39. gxh4 Rc1 40. Rg2 Qxg2+ 41. Kxg2 R8c2+ 42. Qxc2 Rxc2+ 43. Kf3 Rxb2 44. Rxe6 Rb3 45. Re8 Rxa3 46. e6 Kg6 1/2-1/2
2023.05.23 Titled Tue 23rd May Early
946002 Mendoza, Ro (2195) Koellner, Ruben Gideon (2426) 0-1
1. Nf3 d6 2. c4 Nf6 3. Nc3 e5 4. e3 Nbd7 5. Qc2 Be7 6. b3 c6 7. Bb2 O-O 8. d4 Re8 9. Be2 Qc7 10. O-O Nf8 11. Rfe1 Ng6 12. Rad1 Bf8 13. h3 h6 14. Bd3 Nh8 15. c5 exd4 16. cxd6 Bxd6 17. Nxd4 Bd7 18. a3 Rad8 19. b4 Bc8 20. Nf5 Bf8 21. Ne2 Be7 22. Nf4 Bxf5 23. Bxf5 Rxd1 24. Rxd1 Rd8 25. Bd4 a6 26. Rb1 Nd5 27. Bh7+ Kf8 28. Nh5 Nf6 29. Nxf6 Bxf6 30. Bxf6 gxf6 31. Bf5 Kg7 32. a4 Ng6 33. b5 axb5 34. axb5 Ne7 35. Rb4 Qe5 36. Rg4+ Kf8 37. Bd3 Ra8 38. g3 Ra1+ 39. Kg2 Qd5+ 40. Be4 Qe6 41. Qd3 Ra8 42. b6 f5 43. Qd4 f6 0-1
2023.05.23 Titled Tue 23rd May Early
946269 Koellner, Ruben Gideon (2426) Rangel, D (2207) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d5 5. e5 Ne4 6. Nxe4 dxe4 7. Ng5 c5 8. c3 cxd4 9. Qxd4 Bd7 10. Qxe4 Bc6 11. Qd4 Nd7 12. f4 O-O 13. Be3 Qa5 14. Qb4 Qc7 15. e6 f6 16. Nxh7 Kxh7 17. exd7 Qxd7 18. Kf2 e5 19. Be2 Bh6 20. Rad1 Qf5 21. Rhf1 exf4 22. Bd4 Rf7 23. Kg1 Re8 24. Bf3 Bxf3 25. Rxf3 Re2 26. Rf2 Rxf2 27. Bxf2 f3 28. gxf3 Qxf3 29. Re1 Bf4 30. Qe4 Qg4+ 31. Qg2 Qf5 32. Rf1 g5 33. Bd4 Kg6 34. Bf2 Rd7 35. Bg3 Rd2 36. Qf3 Qc5+ 37. Kh1 Bxg3 38. hxg3 Qc6 39. Qxc6 bxc6 40. Rb1 Rc2 41. a4 Kf5 42. Rf1+ Kg4 43. Rxf6 Rxb2 44. Kg1 Kxg3 45. Kf1 g4 46. Rxc6 Ra2 47. Rc4 Kf3 48. Ke1 g3 49. Rc8 Ra1+ 50. Kd2 g2 51. Rf8+ Ke4 52. Re8+ Kd5 53. Rd8+ Kc6 54. Rc8+ Kb7 55. Rg8 g1=Q 56. Rxg1 Rxg1 57. Kc2 Rg4 58. Kb3 Kc6 59. a5 Kb5 60. Kc2 Kxa5 61. Kd3 Kb5 62. Ke3 Kc4 63. Kf3 Rg7 64. Kf2 Rd7 0-1
2023.05.23 Titled Tue 23rd May Early
946414 Rodchenkov, S (2346) Koellner, Ruben Gideon (2426) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. Qe2 h6 8. a4 Qc7 9. h3 Nf8 10. Rd1 g5 11. a5 Ng6 12. a6 b5 13. dxe5 dxe5 14. Bb3 g4 15. Nh2 gxh3 16. g3 h5 17. Bg5 Ng4 18. Bxe7 Qxe7 19. Rd2 Kf8 20. Rad1 Kg7 21. Nf1 h4 22. f3 Qc5+ 23. Kh1 hxg3 24. Nxg3 Nf2+ 25. Qxf2 Qe7 26. Rg1 Qf6 27. Qh2 Kf8 28. Qf2 h2 29. Rgd1 Kg7 30. Rd6 Qh4 31. Rd7 Bxd7 32. Rxd7 Qf6 33. Nf5+ Kf8 34. Qc5+ Kg8 35. Bxf7+ Qxf7 36. Rxf7 Kxf7 37. Qxc6 1-0
2023.05.23 Titled Tue 23rd May Early
946566 Koellner, Ruben Gideon (2426) Fu, Yihe (2044) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. c3 Nc6 5. Nbd2 Qc7 6. dxc5 e5 7. b4 a5 8. Bb5 Bd7 9. Qb3 e4 10. Nd4 Ne5 11. Be2 Be7 12. Bb2 O-O 13. a3 Bg4 14. Bb5 Bd7 15. Be2 Bg4 16. f3 exf3 17. gxf3 Bh5 18. O-O-O Bg6 19. Nf1 axb4 20. cxb4 b6 21. Nb5 Qb8 22. f4 Neg4 23. c6 Rc8 24. c7 Rxc7+ 25. Nxc7 Qxc7+ 26. Qc3 Qd7 27. Bxg4 Qxg4 28. Nd2 Rc8 0-1
2023.05.16 Titled Tue 16th May Early
952017 Rian, K (2089) Koellner, Ruben Gideon (2426) 1/2-1/2
1. d4 d6 2. Nf3 Nf6 3. Nc3 Nbd7 4. e4 e5 5. Bg5 Be7 6. Be2 c6 7. O-O h6 8. Bc1 O-O 9. h3 Qc7 10. a4 Re8 11. Be3 Nf8 12. Qd2 Ng6 13. dxe5 dxe5 14. Bc4 Bf8 15. Rfd1 Be6 16. Bxe6 Rxe6 17. Qe2 Bb4 18. Qc4 Bxc3 19. bxc3 b6 20. Nd2 Rd8 21. Nb3 Red6 22. Rxd6 Qxd6 23. f3 Nh5 24. Qb4 Nhf4 25. Qxd6 Rxd6 26. Kf2 Kf8 27. a5 c5 28. axb6 axb6 29. Nxc5 Rc6 30. Nd7+ Ke7 31. Nxb6 Rxc3 32. Ra2 Rc6 33. c4 Nd3+ 34. Kg3 Ngf4 35. Nd5+ Ke6 36. Bxf4 exf4+ 37. Nxf4+ Nxf4 38. Kxf4 Rxc4 39. Ra6+ Ke7 40. h4 Rc2 41. g4 Rc7 42. h5 Rb7 43. g5 hxg5+ 44. Kxg5 Rb5+ 45. Kg4 Rb1 46. f4 Rg1+ 47. Kf5 Rh1 48. Ra7+ Kf8 49. Ra8+ Ke7 50. Rh8 g6+ 51. Kg5 Rg1+ 52. Kh4 Rh1+ 53. Kg5 Rg1+ 54. Kh4 Rh1+ 55. Kg5 1/2-1/2
2023.05.16 Titled Tue 16th May Early
952255 Koellner, Ruben Gideon (2426) Yonal, Timur (2039) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 c5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 a6 11. a3 b5 12. a4 Rb8 13. axb5 axb5 14. Qe2 Qb6 15. Nd4 e5 16. Nxb5 e4 17. Nxd6 exd3 18. Qxd3 Ne5 19. Nxc8 Nxd3 20. Nxb6 Rxb6 21. Ra2 Rc8 22. Ba1 h6 23. h3 Rbb8 24. Rd1 Ne4 25. Nb1 Ra8 26. Rxa8 Rxa8 27. Rxd3 Rxa1 28. Rd1 Nd6 29. Kf1 Nc4 30. Ke2 Ra2+ 31. Kf3 Ra1 32. b5 Rxb1 33. Rxb1 Nd2+ 34. Kf4 Nxb1 35. b6 g5+ 36. Kg3 Nxc3 37. b7 Ne4+ 38. Kh2 Nc5 39. b8=Q+ 1-0
2023.05.16 Titled Tue 16th May Early
952669 Swiercz, D (2637) Koellner, Ruben Gideon (2426) 1-0
1. d4 d6 2. e4 Nf6 3. Bd3 e5 4. c3 Nbd7 5. Nf3 d5 6. Nbd2 exd4 7. cxd4 dxe4 8. Nxe4 Nxe4 9. Bxe4 Nf6 10. Bc2 Bb4+ 11. Bd2 Qe7+ 12. Qe2 Qxe2+ 13. Kxe2 Bxd2 14. Kxd2 O-O 15. Bb3 Bg4 16. Ne5 Rad8 17. Ke3 Bh5 18. f3 Rfe8 19. g4 Bg6 20. Rad1 c5 21. Kf4 cxd4 22. Rhe1 Kf8 23. h4 Nd5+ 24. Bxd5 Rxd5 25. h5 Bc2 26. Rd2 d3 27. Re3 g5+ 28. hxg6 hxg6 29. g5 Re6 30. Re4 b5 31. a3 a5 32. b4 a4 33. Ng4 Rf5+ 34. Ke3 Rxe4+ 35. fxe4 Rxg5 36. Nf6 Ke7 37. Nd5+ Kd6 38. Kd4 Rg4 39. Nc3 f5 40. Nxb5+ Ke6 41. Nc3 fxe4 42. Nxe4 Kf5 43. Rf2+ Rf4 44. Rxf4+ Kxf4 45. b5 Bd1 46. b6 Bf3 47. b7 Bxe4 48. b8=Q+ Kf3 49. Qf8+ Bf5 50. Kc3 Ke4 51. Qh6 Ke5 52. Kd2 Kd4 53. Qg7+ Kc4 54. Qe7 Kb3 55. Qb4+ Ka2 56. Qxa4 g5 57. Qb4 g4 58. a4 g3 59. Qb6 g2 60. a5 Be4 61. a6 Ka3 62. a7 Ka4 63. Qd4+ Kb3 64. Qb6+ Kc4 65. Ke1 Kc3 66. Qc5+ Kb2 67. Kf2 d2 68. Qd4+ Kc1 69. Qc3+ Kd1 70. Qe3 Ba8 71. Qc5 Be4 72. Qc4 Ba8 73. Qc8 Be4 74. a8=Q Bxa8 75. Qxa8 Kc1 76. Qc6+ Kb2 77. Qb5+ Kc1 78. Qc4+ Kb2 79. Qd3 Kc1 80. Qc3+ Kd1 81. Kxg2 Ke1 82. Qe3+ Kd1 83. Kf3 Kc2 84. Qc5+ Kd3 85. Qd5+ Kc3 86. Ke2 d1=Q+ 87. Kxd1 1-0
2023.05.16 Titled Tue 16th May Early
952739 Koellner, Ruben Gideon (2426) Liu, Casper (2278) 1-0
1. d4 c5 2. e3 cxd4 3. exd4 d5 4. Nf3 Nf6 5. c3 Bg4 6. Be2 e6 7. O-O Bd6 8. h3 Bh5 9. Ne5 Bxe2 10. Qxe2 O-O 11. Nd2 Nc6 12. Ndf3 Ne4 13. Re1 f6 14. Nxc6 bxc6 15. Nd2 f5 16. f3 Ng3 17. Qxe6+ Kh8 18. Nf1 Re8 19. Qxe8+ Qxe8 20. Rxe8+ Rxe8 21. Bd2 c5 22. Nxg3 Bxg3 23. dxc5 Re2 24. Rd1 Kg8 25. Kf1 Rf2+ 26. Kg1 Re2 27. b4 Kf7 28. a4 Ke6 29. b5 h6 30. a5 d4 31. cxd4 Kd5 32. a6 Kc4 33. b6 Kb5 34. bxa7 Re8 35. Rb1+ Kxa6 36. Ra1+ Kb7 37. c6+ Ka8 38. d5 Re7 39. Bb4 Rxa7 40. Rxa7+ Kxa7 41. d6 Kb6 42. d7 Bc7 43. Be7 Kxc6 44. d8=Q Bxd8 45. Bxd8 Kd5 46. Bh4 g5 47. Be1 f4 48. Kf1 Ke5 49. Ke2 Kf5 50. Bc3 h5 51. Kd3 g4 52. h4 gxf3 53. gxf3 1-0
2023.05.16 Titled Tue 16th May Early
952963 Koellner, Ruben Gideon (2426) Ansh, M Shah (2171) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nbd7 6. Bd3 b6 7. Ne5 Nxe5 8. dxe5 Nd7 9. f4 f6 10. Qh5+ g6 11. Bxg6+ hxg6 12. Qxh8 fxe5 13. Nf3 exf4 14. exf4 Qf6 15. Qxf6 Nxf6 16. Ne5 Ba6 17. Nxg6 Bd6 18. Ne5 Kd8 19. Nf7+ Ke7 20. Nxd6 Kxd6 21. h3 Rh8 22. Be3 Ng4 23. Kd2 Nf6 24. g4 Ne4+ 25. Ke1 Ng3 26. Rh2 Nf1 27. Re2 Bxe2 28. Kxe2 Nxe3 29. Kxe3 Rxh3+ 30. Kf2 Rh2+ 31. Kg3 Rxb2 32. g5 Ke7 33. Rh1 Rc2 34. Rh7+ Kf8 35. Rxa7 Rxc3+ 36. Kg4 d4 37. g6 Rc2 38. Kg5 Rf2 39. g7+ Kg8 40. Kg6 Rg2+ 41. Kf6 Rg4 42. Ra8+ Kh7 43. Rh8# 1-0
2023.05.16 Titled Tue 16th May Early
953175 Zherebukh, Y (2623) Koellner, Ruben Gideon (2426) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 c6 6. g4 h6 7. h4 exd4 8. Nxd4 Ne5 9. g5 hxg5 10. hxg5 Nfg4 11. Be2 Nh2 12. Bf4 Qb6 13. Nb3 Nhg4 14. Qd4 c5 15. Qd2 Be6 16. Nd5 Bxd5 17. Qxd5 c4 18. Nd4 Qxb2 19. Qb5+ Qxb5 20. Nxb5 O-O-O 21. Nxa7+ Kb8 22. Nb5 Nh2 23. O-O-O Nhf3 24. Bxf3 Nxf3 25. Rg3 Ne5 26. Bxe5 dxe5 27. Rxd8# 1-0
2023.05.16 Titled Tue 16th May Early
953401 Koellner, Ruben Gideon (2426) Grigoriants, S RUS (2562) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. c3 e6 5. Nbd2 Nbd7 6. Bd3 b6 7. Ne5 Bb7 8. f4 Be7 9. Qf3 O-O 10. O-O Qc8 11. g4 Ba6 12. g5 Nxe5 13. fxe5 Nd7 14. Bxh7+ Kxh7 15. Qh5+ Kg8 16. Rf4 Bxg5 17. Qxg5 f5 18. Nf3 Be2 19. Nh4 Qd8 20. Qg6 Rf7 21. Qxe6 Qg5+ 22. Kf2 Bg4 23. Nf3 Qh5 24. Qxd5 Bxf3 25. Qxf3 Qxh2+ 26. Qg2 Qxg2+ 27. Kxg2 Re8 28. Bd2 Nf8 29. Raf1 g6 30. Rh4 Ne6 31. Rfh1 Ng5 32. Rh8+ 1-0
2023.05.16 Titled Tue 16th May Early
953602 Pakleza, Z (2494) Koellner, Ruben Gideon (2426) 1-0
1. d4 d6 2. Nf3 Nf6 3. Bf4 Nc6 4. e3 g6 5. h3 Bg7 6. Be2 O-O 7. O-O Nd7 8. c4 e5 9. Bh2 h6 10. Nc3 f5 11. Rc1 f4 12. dxe5 dxe5 13. Qc2 g5 14. Rcd1 Ne7 15. exf4 exf4 16. Bd3 Qe8 17. Rfe1 Qf7 18. Nb5 Nc5 19. Bh7+ Kh8 20. Nxc7 Rb8 21. b4 Bf5 22. Bxf5 Nxf5 23. Nb5 Na6 24. a3 Rbc8 25. c5 Nc7 26. Nd6 Nxd6 27. cxd6 Nb5 28. Qd3 Nc3 29. Rd2 Rcd8 30. Ne5 Qb3 31. Ng6+ Kg8 32. Nxf8 Bxf8 33. d7 a5 34. Qg6+ Kh8 35. Qf6+ Kg8 36. Qxd8 Ne2+ 37. Rdxe2 1-0
2023.05.16 Titled Tue 16th May Early
953831 Koellner, Ruben Gideon (2426) Degenbaev, Aziz (2203) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 O-O 5. c3 d6 6. Bc4 Nc6 7. O-O e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Qe2 Qe7 11. a4 a5 12. b3 b6 13. Ba3 c5 14. Rfd1 Nh5 15. g3 Kh8 16. f3 f5 17. Bd5 Rb8 18. Nc4 fxe4 19. Bxe4 Nf6 20. Rd6 Nxe4 21. fxe4 Ba6 22. Rad1 Rfd8 23. Rxd8+ Rxd8 24. Rxd8+ Qxd8 25. Nxe5 Qd4+ 26. cxd4 Bxe2 27. Nd7 cxd4 28. Kg2 d3 29. Bc1 Bc3 30. Kf2 Bg4 31. Nxb6 Bd4+ 32. Be3 Bxb6 0-1
2023.05.16 Titled Tue 16th May Late
954441 Kostiukov, A (2271) Koellner, Ruben Gideon (2426) 1-0
1. g3 d6 2. Bg2 Nf6 3. d4 Nbd7 4. c4 e5 5. Nf3 Be7 6. O-O c6 7. Nc3 O-O 8. e4 a6 9. h3 b5 10. c5 exd4 11. Nxd4 Bb7 12. cxd6 Bxd6 13. Nf5 Be5 14. f4 Bxc3 15. bxc3 c5 16. Nd6 Bc6 17. Be3 Qc7 18. e5 Bxg2 19. Kxg2 Ne8 20. Ne4 Rc8 21. Qd5 Nb6 22. Qd3 Qb7 23. Kh2 c4 24. Qc2 Nd5 25. Ng5 g6 26. Bd4 Nec7 27. Rae1 Ne6 28. Ne4 Nxd4 29. cxd4 Qb6 30. Nd6 Qxd4 31. Rd1 Qc5 32. Ne4 Qc6 33. Rxd5 Rcd8 34. Nf6+ Kg7 35. Rfd1 Rxd5 36. Rxd5 Rc8 37. h4 h5 38. f5 b4 39. Qd2 Rc7 40. Qg5 Kf8 41. Qh6+ Ke7 42. Qh8 Rc8 43. Qg7 c3 44. Rd7+ Qxd7 45. Nxd7 Kxd7 46. Qxf7+ Kc6 47. Qxg6+ Kb7 48. Qf7+ Rc7 49. Qd5+ Kb8 50. Qd1 c2 51. Qc1 a5 52. f6 a4 53. e6 b3 54. axb3 axb3 55. f7 Ka7 56. f8=Q b2 57. Qa3+ Kb6 58. Qaxb2+ Kc6 59. Qbxc2+ Kd6 60. Qxc7+ Kd5 61. Q7f4 Kxe6 62. Qe1+ Kd7 63. Qfd2+ Kc6 64. Qec1+ Kb7 65. Qdb2+ Ka8 66. Qca1# 1-0
2023.05.16 Titled Tue 16th May Late
954522 Koellner, Ruben Gideon (2426) Gerbelli Neto, E (2114) 1-0
1. d4 d5 2. Nf3 Nf6 3. Nbd2 Bf5 4. e3 e6 5. Ne5 Nfd7 6. g4 Nxe5 7. gxf5 Nec6 8. fxe6 fxe6 9. Bh3 Qf6 10. O-O Bd6 11. f4 O-O 12. Qg4 Re8 13. Nf3 Nb4 14. c3 Nd3 15. Ne5 Nxc1 16. Raxc1 c5 17. Kh1 Nc6 18. Rf2 Re7 19. Rcf1 Rf8 20. Rf3 cxd4 21. exd4 Qh6 22. Rg3 Bxe5 23. fxe5 Rxf1+ 24. Bxf1 Rf7 25. Bh3 Nd8 26. Qg5 Qxg5 27. Rxg5 h6 28. Rg1 g5 29. Kg2 Kg7 30. Bg4 Rf4 31. Be2 Nf7 32. a4 Re4 33. Bf3 Rf4 34. Kg3 Nh8 35. Bg4 Kf7 36. Bh5+ Ke7 37. Ra1 b6 38. a5 b5 39. a6 Re4 40. Ra5 Re3+ 41. Kg2 Rd3 42. Rxb5 Rd2+ 43. Kg3 Rd3+ 44. Kg2 Rd2+ 45. Kg1 g4 46. Rb7+ Kd8 47. Rb8+ Kc7 48. Rxh8 Rxb2 49. Bxg4 Rb6 50. Rh7+ Kb8 51. Rb7+ 1-0
2023.05.16 Titled Tue 16th May Late
954709 Lozano, N (2223) Koellner, Ruben Gideon (2426) 0-1
1. c4 d6 2. g3 Nf6 3. Bg2 e5 4. Nc3 Be7 5. e4 O-O 6. Nge2 c5 7. O-O Nc6 8. d3 Nd4 9. Nxd4 exd4 10. Ne2 Rb8 11. a4 a6 12. h3 b5 13. axb5 axb5 14. b3 Be6 15. f4 bxc4 16. bxc4 h6 17. g4 Rb6 18. Ng3 Nh7 19. Nf5 Bxf5 20. exf5 Bh4 21. Qf3 Qe7 22. Bd2 Rb3 23. Ra6 Rfb8 24. Ra8 Rxa8 25. Qxa8+ Nf8 26. Be4 Rb2 27. Bc1 Re2 28. Qb7 Qd8 29. Bf3 Rc2 30. Bd5 Qf6 31. Qc8 Qe7 32. Be4 Bg3 33. Qa8 Qh4 34. Bg2 Bf2+ 35. Kh1 Be3 36. Ba3 Ra2 0-1
2023.05.16 Titled Tue 16th May Late
954974 Koellner, Ruben Gideon (2426) Paravyan, D (2601) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 b6 5. Bd3 Bb7 6. Ne5 g6 7. f4 Bg7 8. Qf3 O-O 9. g4 c5 10. c3 Nc6 11. g5 Nxe5 12. fxe5 Ne4 13. h4 b5 14. Bxb5 Qb6 15. Bd3 Nxd2 16. Kxd2 Ba6 17. Bxa6 Qxa6 18. Qe2 Qa4 19. Qd1 Qa6 20. Qe2 Qa4 21. h5 Rfb8 22. hxg6 hxg6 23. Qh2 Rb7 24. Qh7+ Kf8 25. Rf1 Rab8 26. Qxg6 Qa6 27. Qd3 Rxb2+ 28. Bxb2 Rxb2+ 29. Qc2 Rxc2+ 30. Kxc2 Qe2+ 31. Kb3 Qc4+ 32. Kb2 Qe2+ 33. Kb3 c4+ 34. Ka3 Ke8 35. Rfc1 Bf8+ 36. Ka4 Qb2 37. Rab1 Qa3+ 38. Kb5 Kd7 39. Rf1 Be7 40. Rxf7 Qxa2 41. Rb4 Ke8 42. g6 Bxb4 43. Kxb4 Qb1+ 44. Kc5 Qb6# 0-1
2023.05.16 Titled Tue 16th May Late
955197 Martinez Martin, D (2385) Koellner, Ruben Gideon (2426) 1-0
1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. c3 Nbd7 5. f4 c5 6. dxe5 dxe5 7. f5 c4 8. Bc2 b5 9. Be3 Bb7 10. Qc1 Nxe4 11. Nf3 Bc5 12. O-O Qb6 13. Re1 f6 14. Na3 Bxe3+ 15. Qxe3 Qxe3+ 16. Rxe3 Nd6 17. Rd1 Ke7 18. Nd4 a6 19. Ne6 Rhg8 20. b3 Rac8 21. bxc4 Nxc4 22. Nxc4 Rxc4 23. Bb3 Rg4 24. Rxd7+ Kxd7 25. Nc5+ Kc6 26. Nxb7 Rb8 27. Bd1 Rf4 28. Na5+ Kb6 29. Nb3 Rxf5 30. Rd3 Kc7 31. Nc5 Rb6 32. Bg4 Rf4 33. Ne6+ Rxe6 34. Bxe6 e4 35. Rd4 f5 36. Bb3 g6 37. Bd1 Rh4 38. Be2 g5 39. Rd5 f4 40. Rxg5 Kd6 41. a4 bxa4 42. Ra5 f3 43. gxf3 exf3 44. Bxf3 Rc4 45. Rxa6+ Ke5 46. Be2 Rxc3 47. Rxa4 Rc7 48. Bf1 Kf5 49. Ra5+ Kg6 50. Ra3 Kg7 51. Rg3+ Kh8 52. Rf3 Rg7+ 53. Bg2 Re7 54. h3 Kg7 55. Kh2 Re5 56. Rf4 Rg5 57. Be4 Re5 58. Rh4 h6 59. Rg4+ Kh8 60. h4 Re6 61. Kg3 Rf6 62. h5 Rf7 63. Rg6 Kh7 64. Kg4 Rg7 65. Bf5 Rg8 66. Kf4 Rg7 67. Ke5 Rg8 68. Kf6 Rf8+ 69. Ke6 Rg8 70. Kf7 1-0
2023.05.09 Titled Tue 9th May Early
958265 Bashkansky, Ethan (2101) Koellner, Ruben Gideon (2426) 1/2-1/2
1. d4 d6 2. e4 Nf6 3. f3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. Be3 Bd6 9. Nd2 Ke7 10. Nh3 Nbd7 11. Nf2 a6 12. a4 b5 13. axb5 axb5 14. Ke2 c5 15. b3 Rhb8 16. Nd3 h6 17. g4 Nh7 18. h4 Nhf8 19. h5 Nh7 20. Bf2 Kf7 21. Bh4 Be7 22. Bg3 Bf6 23. Rhb1 Ke7 24. Bf2 Kd6 25. c4 b4 26. Ra4 Rxa4 27. bxa4 Kc6 28. Nb3 Be7 29. Ra1 Ra8 30. Be3 Ng5 31. Bxg5 Bxg5 32. Ra2 Be7 33. a5 Ra6 34. Ra1 Bd6 35. Kd2 Nf8 36. Ke2 Nh7 37. Kd2 Ng5 38. Ke2 Nh3 39. Kd2 Nf4 40. Nxf4 exf4 41. Kd3 Be5 42. Rd1 Ra8 43. Kc2 Bc3 44. Rd3 Be5 45. Rd1 Bc3 46. Rf1 Rd8 47. Rd1 Ra8 1/2-1/2
2023.05.09 Titled Tue 9th May Early
958384 Koellner, Ruben Gideon (2426) Korpics, Z (2300) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 d5 5. c3 Nc6 6. Bd3 cxd4 7. exd4 Bd6 8. O-O O-O 9. Re1 Qc7 10. Qe2 Re8 11. Ne5 Nd7 12. Bxh7+ Kf8 13. f4 Nf6 14. Bd3 Bd7 15. g4 g6 16. g5 Nh5 17. Qg4 Bxe5 18. fxe5 Ne7 19. Nf1 Nf5 20. Qh3 Kg7 21. Ne3 Rh8 22. Qf3 Rh7 23. Ng4 Rah8 24. Nh6 b5 25. Bxf5 gxf5 26. Qxh5 Be8 27. Qe2 Kf8 28. Bd2 Rg7 29. Kf2 Qe7 30. h4 Rxg5 31. Bxg5 1-0
2023.05.09 Titled Tue 9th May Early
958577 Bok, B (2607) Koellner, Ruben Gideon (2426) 1-0
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. g3 Bg7 5. Bg2 O-O 6. Nc3 Nbd7 7. O-O e5 8. e4 Re8 9. h3 c6 10. Be3 Qc7 11. Qc2 a6 12. Rfd1 b5 13. dxe5 Nxe5 14. Nxe5 dxe5 15. Rac1 b4 16. Na4 Nd7 17. c5 Nf8 18. Nb6 Ra7 19. Qa4 a5 20. Rd6 Bb7 21. Rcd1 Ne6 22. Rd7 Qb8 23. Bf1 Nd4 24. Bc4 Rf8 25. Bxd4 exd4 26. Qb3 Qe5 27. Qf3 Qxc5 28. Rxf7 Kh8 29. Nd7 1-0
2023.05.09 Titled Tue 9th May Early
958890 Pourkashiyan, A (2282) Koellner, Ruben Gideon (2426) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. h3 c6 7. a4 h6 8. O-O Qc7 9. Re1 Nf8 10. Nh4 g6 11. a5 Be6 12. Qd3 Nh5 13. Nf3 g5 14. d5 Bc8 15. a6 b5 16. Bb3 b4 17. Nd1 c5 18. Ba4+ Bd7 19. Bxd7+ Qxd7 20. Ne3 Ng7 21. c3 Rb8 22. cxb4 Rxb4 23. Bd2 Qb5 24. Qxb5+ Rxb5 25. Nc4 Kd7 26. Ba5 Ng6 27. g3 Rhb8 28. Rec1 f5 29. Nfd2 h5 30. Rc3 g4 31. Kh2 Bg5 32. exf5 Nxf5 33. Ne4 Be7 34. Rd1 Nd4 35. Kg2 Nb3 36. Rxb3 Rxb3 37. Bc3 Nh8 38. hxg4 hxg4 39. Rh1 Nf7 40. Rh7 Rf8 41. Na5 Rb6 42. Nc6 Rxc6 43. dxc6+ Kxc6 44. Nd2 d5 45. Rg7 d4 46. Ba5 Kd5 47. Bc7 Bd6 48. Bxd6 Nxd6 49. Rxa7 e4 50. Rg7 e3 51. fxe3 dxe3 0-1
2023.05.09 Titled Tue 9th May Early
959126 Koellner, Ruben Gideon (2426) Salman, P (2287) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 c6 7. a4 Nbd7 8. Bb2 Re8 9. Be2 Ne4 10. Nxe4 dxe4 11. Nd2 e5 12. d5 cxd5 13. cxd5 Nf6 14. O-O Qxd5 15. Bc4 Qd6 16. Qb3 Be6 17. Rfd1 Qe7 18. b5 Rac8 19. Rac1 Bxc4 20. Nxc4 Qe6 21. Rd6 Qf5 22. Rd2 Red8 23. Rxd8+ Rxd8 24. h3 Qe6 25. Bxe5 Rd3 26. Qb2 Ne8 27. Bxg7 Nxg7 28. Na5 Nf5 29. Nxb7 Qd7 30. Nc5 Rd1+ 31. Kh2 Qd6+ 32. g3 Rd2 33. Nxe4 Rxb2 34. Nxd6 Nxd6 35. Rc7 Rxf2+ 36. Kg1 Ra2 37. Rxa7 Nxb5 38. Ra8+ Kg7 39. a5 Nc3 40. g4 Ne2+ 41. Kf1 Nc3 42. a6 Ne4 43. Ke1 h5 44. gxh5 gxh5 45. a7 Nf6 46. Kd1 h4 47. Kc1 Ra6 48. Kb2 Nd7 49. Kb3 Kf6 50. Kb4 Ra1 0-1
2023.05.09 Titled Tue 9th May Early
959331 Devaev, A (2325) Koellner, Ruben Gideon (2426) 1-0
1. Nf3 d6 2. d4 Nf6 3. c4 g6 4. Nc3 Bf5 5. Nh4 Bd7 6. Nf3 Bf5 7. Nh4 Bd7 8. Nf3 Bg7 9. e4 O-O 10. h3 c5 11. d5 Re8 12. Bg5 Be6 13. dxe6 fxe6 14. e5 Nh5 15. exd6 Qxd6 16. Be2 Nc6 17. O-O Nd4 18. Nxd4 cxd4 19. Ne4 Qe5 20. Bxh5 Qxe4 21. Bf3 Qf5 22. Qd2 e5 23. Rae1 Rac8 24. Bg4 Qf7 25. Bxc8 Rxc8 26. b3 Qf5 27. f3 b5 28. Rc1 e4 29. fxe4 Qxe4 30. Rfe1 Qf5 31. Rxe7 d3 32. Rxg7+ Kxg7 33. Be3 Re8 34. cxb5 Qe4 35. Re1 Kg8 36. a4 Qd5 37. Rd1 Qxb3 38. Bf2 Rd8 39. Re1 Qxa4 40. Re7 Qa1+ 41. Kh2 Qf6 42. Rxa7 g5 43. Bg3 h5 44. Qa2+ Kh8 45. Rf7 Qd4 46. Qe6 Qg7 47. Rxg7 Kxg7 48. Be5+ Kf8 49. Qf6+ Ke8 50. Qg6+ Kd7 51. Qxg5 Kc8 52. Bf4 Rd7 53. Bd2 Kb7 54. Qxh5 Kb6 55. Qf3 Rd6 56. Qe3+ Kxb5 57. Qe5+ Kc6 58. Qxd6+ Kxd6 59. h4 Kd5 60. g4 Ke6 61. h5 Kf7 62. Kg3 Kg8 63. Kf4 Kh7 64. Ke4 Kg8 65. Kxd3 Kh7 66. Ke4 Kg8 67. Kf5 Kh7 68. g5 Kg8 69. Bc3 Kh7 70. g6+ Kg8 71. h6 Kf8 72. h7 Ke7 73. h8=Q Kd7 74. Qe5 Kc6 75. g7 Kb6 76. Ke4 Kb7 77. Be1 Ka8 78. Bg3 Kb7 79. Qd5+ Ka6 80. Qc6+ Ka5 81. Be1# 1-0
2023.05.09 Titled Tue 9th May Late
960200 Ng, Gary (2213) Koellner, Ruben Gideon (2426) 0-1
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. O-O-O+ Nd7 8. Nf3 Bd6 9. h3 h6 10. Be3 Ke7 11. Nb5 a6 12. Nxd6 cxd6 13. Kb1 Nxe4 14. Bd3 Nec5 15. Be2 Rac8 16. Rhe1 b5 17. g4 d5 18. Nh4 d4 19. Bd2 Ne4 20. Bb4+ Nd6 21. Bf3 Rc4 22. c3 Rhc8 23. Bb7 R8c7 24. Bxa6 Rxb4 25. cxb4 Ra7 26. Bxb5 Bxa2+ 27. Kc2 Rc7+ 28. Kd2 Nxb5 29. f4 f6 30. fxe5 fxe5 31. Ng6+ Kd6 32. Ra1 Bd5 33. Ra6+ Rc6 34. Ra5 Rb6 35. h4 e4 36. g5 e3+ 37. Kd3 hxg5 38. hxg5 Ne5+ 39. Ke2 Nxg6 0-1
2023.05.09 Titled Tue 9th May Late
960302 Koellner, Ruben Gideon (2426) Andreikin, D (2729) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 Qc7 5. Nbd2 g6 6. Bd3 Bg7 7. O-O O-O 8. e4 cxd4 9. Nxd4 Nc6 10. Nb5 Qb8 11. exd5 Nxd5 12. Qf3 Rd8 13. Be4 Ne5 14. Qe2 Nf4 15. Qe3 Ng4 16. Qg3 Ne2+ 0-1
2023.05.09 Titled Tue 9th May Late
960568 Kovalevsky, Stanislav (2237) Koellner, Ruben Gideon (2426) 1/2-1/2
1. c4 d6 2. Nc3 e5 3. g3 Nf6 4. Bg2 Be7 5. b4 O-O 6. Bb2 c6 7. e3 Be6 8. d3 d5 9. cxd5 cxd5 10. a3 a5 11. b5 Nbd7 12. Nge2 Re8 13. O-O Rc8 14. h3 h6 15. f4 exf4 16. exf4 Nc5 17. Nd4 Qb6 18. Kh2 Bd6 19. Nxe6 fxe6 20. Re1 d4 21. Ne2 Qxb5 22. Bxd4 Nxd3 23. Rb1 Qa6 24. Bxb7 Qc4 25. Bxc8 Nxe1 26. Rc1 Nf3+ 27. Kh1 Qd5 28. Bxf6 Nd2+ 29. Kh2 gxf6 30. Bd7 Rd8 31. Bc6 Qd3 32. Nc3 Bxa3 33. Qg4+ Kh8 34. Qh4 Bxc1 35. Qxf6+ Kg8 36. Qxe6+ Kf8 37. Qf6+ Kg8 38. Qe6+ Kf8 39. Qf6+ Kg8 40. Qe6+ 1/2-1/2
2023.05.09 Titled Tue 9th May Late
960727 Koellner, Ruben Gideon (2426) Guz, Ari (2324) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 dxc4 7. Bxc4 b6 8. Bb2 Bb7 9. O-O Nbd7 10. b5 Ne4 11. Nxe4 Bxe4 12. Rc1 Rc8 13. Ng5 Bb7 14. Qb3 e6 15. Bxe6 Qxg5 16. f3 fxe6 17. Qxe6+ Rf7 18. e4 Nf8 19. Qc4 Rd8 20. Rc2 Qe3+ 21. Kh1 Bc8 22. d5 Bxb2 23. Rxb2 g5 24. Re2 Qc5 25. Qxc5 bxc5 26. Rc2 Nd7 27. Re1 Re7 28. Re3 Bb7 29. Rd3 Ne5 30. Ra3 g4 31. Rxc5 Bxd5 32. Kg1 Bf7 33. Rxa7 gxf3 34. gxf3 Nxf3+ 35. Kf2 Nd2 36. Rcxc7 Nxe4+ 37. Ke3 Rxc7 38. Rxc7 Nf6 39. b6 Nd5+ 0-1
2023.05.02 Titled Tue 2nd May Early
965834 Zhang, E (2011) Koellner, Ruben Gideon (2426) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Be3 Nbd7 5. Qd2 Ng4 6. Bg5 Be7 7. Bxe7 Qxe7 8. f3 Ngf6 9. O-O-O c6 10. g4 h6 11. h4 b5 12. Kb1 Bb7 13. Nh3 a6 14. g5 hxg5 15. hxg5 Nh5 16. g6 fxg6 17. Ng5 O-O-O 18. Ne2 Ndf6 19. Bh3+ Kb8 20. Ne6 Rde8 21. Qa5 Qf7 22. dxe5 dxe5 23. Nc5 Qc7 24. Nxa6+ Bxa6 25. Qxa6 Rd8 26. Qa3 Nf4 27. Nxf4 exf4 28. Be6 Rxh1 29. Rxh1 Nd7 30. Qc3 Ne5 31. a3 Kb7 32. Bb3 Kb6 33. Rg1 Qd6 34. Ka2 Qd4 35. Qe1 Qe3 36. Qxe3+ fxe3 37. Re1 Nxf3 38. Rxe3 Ne5 39. Rg3 Kc5 40. c3 Rd3 41. Rg5 Kd6 42. Bc2 Re3 43. Kb1 Re1+ 44. Ka2 Re2 45. Kb1 Ke6 46. b3 Kf6 47. Rg1 g5 48. Kc1 g4 49. a4 bxa4 50. bxa4 Re3 51. Kd2 Rh3 52. Rf1+ Nf3+ 53. Ke3 Ke5 54. Ke2 Rh2+ 55. Rf2 Rh1 56. Bb3 Re1+ 57. Kd3 Rb1 58. Kc2 Ra1 59. Kb2 Rh1 60. Rg2 Kf4 61. a5 g3 62. a6 Rh8 63. Be6 Ra8 64. Bc4 Ne1 65. Rg1 Nf3 66. Be2 Ne5 67. Rf1+ Kxe4 68. Rg1 Kf4 69. Kb3 c5 70. Ka4 c4 71. Kb5 Ke3 72. Bxc4 Nxc4 73. Rxg3+ Kf4 74. Rxg7 Nd6+ 75. Kb6 Ke5 76. Rg5+ Ke6 77. Rg6+ Kd5 78. Rg5+ Ke6 79. Rg6+ Kd7 80. Rg7+ Ke6 81. Rg6+ 1/2-1/2
2023.05.02 Titled Tue 2nd May Early
965876 Koellner, Ruben Gideon (2426) Novikova, Galina (2073) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O c6 7. Bb3 a5 8. a4 Nbd7 9. e5 Nd5 10. e6 fxe6 11. Ng5 N7f6 12. Re1 Kh8 13. Nxe6 Bxe6 14. Rxe6 Nf4 15. Re1 e5 16. dxe5 dxe5 17. Nf3 Qxd1 18. Rxd1 Rae8 19. Be3 N6d5 20. Bc5 Rf5 21. Re1 b6 22. Ba3 Nb4 23. Nd2 h6 24. Ne4 Rd8 25. Rad1 Rff8 26. c3 Nbd3 27. Bxf8 Bxf8 28. Re3 Re8 29. Rdxd3 Nxd3 30. Rxd3 c5 31. Bc4 Bg7 32. f3 g5 33. h3 Rb8 34. Rd6 Kh7 35. Kf1 Rf8 36. Rd7 Kh8 37. Ke2 Rb8 38. Bd5 1-0
2023.05.02 Titled Tue 2nd May Early
966092 Koellner, Ruben Gideon (2426) Petrova, I (2108) 1-0
1. d4 d6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 Nf6 5. Bc4 O-O 6. O-O c6 7. Bb3 a5 8. a4 Nbd7 9. e5 Nd5 10. e6 fxe6 11. Ng5 N7f6 12. Re1 Qb6 13. c3 Nh5 14. Nxe6 Bxe6 15. Rxe6 Rae8 16. Nc4 Qc7 17. Ne3 Nhf4 18. Nxd5 Nxd5 19. Qe2 Kh8 20. Bg5 Nf4 21. Bxf4 Rxf4 22. Re1 Bf6 23. g3 Rf5 24. Bc2 Rh5 25. Rxf6 Qc8 26. Re6 1-0
2023.05.02 Titled Tue 2nd May Early
966540 Rustemov, A (2525) Koellner, Ruben Gideon (2426) 1-0
1. d4 d6 2. Nf3 Nf6 3. c4 Nbd7 4. Nc3 e5 5. g3 Be7 6. Bg2 c6 7. Qc2 O-O 8. O-O a6 9. Rd1 Qc7 10. h3 Rd8 11. Be3 h6 12. Rac1 Re8 13. Nd2 Bf8 14. d5 c5 15. g4 Nh7 16. Nde4 Ndf6 17. Ng3 g6 18. Qd2 h5 19. gxh5 Nxh5 20. Nxh5 gxh5 21. Kh2 f5 22. Bh6 Qf7 23. Rg1 Kh8 24. Bxf8 Rxf8 25. f4 e4 26. Nd1 Bd7 27. Ne3 Rg8 28. Bh1 Qf6 29. Qc3 Qxc3 30. Rxc3 b5 31. Rxg8+ Kxg8 32. Ra3 b4 33. Ra5 Kf7 34. b3 Nf8 35. Ng2 Bc8 36. e3 Ng6 37. Kg3 Ke8 38. Nh4 Ne7 39. Kf2 Kd8 40. a3 Rb8 41. axb4 Rxb4 42. Ra3 Kc7 43. Bg2 Kb6 44. Bf1 a5 45. Be2 Bd7 46. Ke1 a4 47. bxa4 Bxa4 48. Ra1 Bb3 49. Rc1 Ka5 50. Kd2 Ra4 51. Kc3 Ba2 52. Rc2 Bb1 53. Rb2 Ba2 54. Rb7 Nc8 55. Rb8 Nb6 56. Nxf5 Bxc4 57. Rxb6 Bxe2 58. Rxd6 Ra3+ 59. Kd2 Bd3 60. Rd8 Bb5 61. d6 Kb4 62. Rb8 Rd3+ 63. Ke1 c4 64. Rc8 c3 65. Nd4 Ba4 66. Kf2 c2 67. Nxc2+ Bxc2 68. Rxc2 Rxd6 69. Rc8 Rd2+ 70. Ke1 Rh2 71. Re8 Kc3 72. Rxe4 Kd3 73. Re5 Rxh3 74. Kf2 Rh2+ 75. Kg3 Re2 76. Kh4 Rh2+ 77. Kg5 h4 78. Kg4 h3 79. f5 Rh1 80. Kg3 h2 81. Kg2 Rf1 82. Kxh2 Rf3 83. Kg2 Ke2 84. e4 Ke3 85. Re8 Rf4 86. Re6 Rg4+ 87. Kh3 Kf3 88. f6 Rg6 89. Kh4 Kf4 90. Kh5 Rg5+ 91. Kh6 Rg2 92. f7 Rh2+ 93. Kg7 Rg2+ 94. Kf6 Ke3 95. f8=Q Rf2+ 96. Kg7 Rg2+ 97. Kf7 Rf2+ 98. Rf6 Rxf6+ 99. Kxf6 1-0
2023.05.02 Titled Tue 2nd May Early
966655 Koellner, Ruben Gideon (2426) Ibadov, Dashgyn (2391) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 Bd6 5. Bd3 c5 6. c3 Nc6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 Qe7 11. a3 a6 12. c4 Rd8 13. Qe2 e5 14. cxd5 Nxd5 15. Rfd1 Bg4 16. h3 Bh5 17. Ne4 Bc7 18. Bc4 Nf6 19. Qc2 Bxf3 20. gxf3 Nh5 21. Rxd8+ Rxd8 22. Rd1 Rf8 23. Kg2 Kh8 24. Ng3 Nxg3 25. fxg3 f5 26. Bd5 Rd8 27. Qxf5 Nd4 28. exd4 Rxd5 29. Qe4 Rd8 30. d5 Bd6 31. Re1 Re8 32. f4 exf4 33. Qxe7 Rxe7 34. Rxe7 Bxe7 35. gxf4 Kg8 36. Kf3 Kf7 37. f5 b5 38. Be5 g6 39. Ke4 1-0
2023.05.02 Titled Tue 2nd May Early
966900 Koellner, Ruben Gideon (2426) Quesada Perez, Yu (2590) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 Nc6 5. Nbd2 cxd4 6. exd4 Bf5 7. Bb5 e6 8. Qa4 Qb6 9. Ne5 Rc8 10. Nb3 Bd6 11. Na5 Bxe5 12. dxe5 Nd7 13. Be3 Qxa5 14. Bxc6 Qxa4 15. Bxa4 a6 16. Bxd7+ Kxd7 17. Bd4 g5 18. h4 g4 19. Kd2 h5 20. Ke3 Be4 21. f3 Bf5 22. Rhg1 Rhg8 23. Raf1 Rg6 24. Kf4 Rcg8 25. Rc1 Kc8 26. c4 dxc4 27. Rxc4+ Kb8 28. Rcc1 Rd8 29. Bb6 Rd5 30. Rgd1 Rxd1 31. Rxd1 Rg8 32. Rd7 gxf3 33. gxf3 Bg6 34. a4 Kc8 35. Rc7+ Kb8 36. a5 Rc8 37. Re7 Rg8 38. Kg5 Rh8 39. Kf6 Rg8 40. f4 Kc8 41. Rc7+ Kb8 42. Re7 Kc8 43. Rc7+ Kb8 44. Rxf7 Bxf7 45. Kxf7 Rg4 46. f5 exf5 47. e6 Rxh4 48. e7 Re4 49. e8=Q+ Rxe8 50. Kxe8 h4 51. Kd7 h3 52. Bc7+ Ka7 53. Ke6 b6 54. axb6+ Kb7 55. Kxf5 a5 56. Kg4 h2 57. Bxh2 Kxb6 58. Bd6 Kb5 59. Ba3 Kc4 60. Kf5 Kb3 61. Ke6 Ka4 62. Kd6 Kb5 63. Kd5 Ka4 64. Kc5 Kb3 65. Kb5 a4 66. Ka5 Ka2 67. Kxa4 Kb1 68. b4 Ka2 69. b5 1-0
2023.05.02 Titled Tue 2nd May Early
967093 Suleymanli, Aydin (2560) Koellner, Ruben Gideon (2426) 1-0
1. d4 d6 2. c4 e5 3. Nc3 exd4 4. Qxd4 Nc6 5. Qd2 g6 6. b3 Bh6 7. e3 Nf6 8. Bb2 O-O 9. g3 Re8 10. Bg2 Bf5 11. Nge2 Ne4 12. Nxe4 Bxe4 13. Bxe4 Rxe4 14. Nc3 Re8 15. Nd5 Bg7 16. Bxg7 Kxg7 17. Qc3+ f6 18. O-O-O a5 19. a3 Re6 20. g4 Kf7 21. h4 Ne7 22. Nf4 Re5 23. g5 fxg5 24. hxg5 Kg8 25. Rh3 Qf8 26. Rdh1 Qg7 27. Rxh7 Qxh7 28. Rxh7 Kxh7 29. Nd3 Rf5 30. f4 Raf8 31. Nf2 b5 32. Ng4 Ng8 33. Kd2 bxc4 34. Qxc4 c5 35. Qa6 d5 36. Qa7+ R8f7 37. Qxc5 Rd7 38. Qd4 Re7 39. b4 axb4 40. axb4 Re4 41. Qa7+ Kh8 42. Nh6 d4 43. Nxf5 1-0
2023.05.02 Titled Tue 2nd May Early
967275 Koellner, Ruben Gideon (2426) Paravyan, D (2601) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O Nxe4 7. Nxe4 d5 8. Bd3 dxe4 9. Bxe4 c6 10. c3 Bg4 11. h3 Bxf3 12. Qxf3 Nd7 13. Bg5 Nf6 14. Bxf6 exf6 15. d5 f5 16. Bc2 Qxd5 17. Qxd5 cxd5 18. Rad1 Rad8 19. Rd3 d4 20. Rfd1 Rd6 21. cxd4 Rfd8 22. d5 Bxb2 23. Rb3 Be5 24. Rxb7 Rxd5 25. Rxd5 Rxd5 26. Bb3 Rc5 27. Bxf7+ Kf8 28. g3 Rc1+ 29. Kg2 Rc2 30. Bb3 Rd2 31. Rxa7 Bd4 32. Rxh7 Rxf2+ 33. Kh1 Rf1+ 34. Kg2 Rf2+ 35. Kh1 Be5 36. Bf7 g5 37. Be6 Ke8 38. Rf7 f4 39. gxf4 gxf4 40. Rf5 Bd4 41. Bd5 Rf1+ 42. Kg2 Rf2+ 43. Kh1 Ke7 44. h4 Kd6 45. h5 Rb2 46. Bb3 Be3 47. h6 Rb1+ 48. Kg2 Rg1+ 49. Kh2 Rg6 50. Rh5 f3 51. h7 f2 52. h8=Q Bf4+ 53. Kh3 f1=Q+ 54. Kh4 Qh1# 0-1
2023.05.02 Titled Tue 2nd May Early
967467 Koellner, Ruben Gideon (2426) Jaskolka, T (2238) 1/2-1/2
1. d4 d5 2. Nf3 Nc6 3. e3 f6 4. c4 e6 5. Nc3 Bb4 6. Qb3 Nge7 7. cxd5 Nxd5 8. Bb5 Bd7 9. O-O Bxc3 10. bxc3 O-O 11. c4 Nde7 12. Bd2 a6 13. Ba4 Qe8 14. Qa3 Qf7 15. Rab1 Rab8 16. Rfd1 Kh8 17. Be1 Ng6 18. Rbc1 Rfd8 19. Bc3 e5 20. d5 Nce7 21. Ba5 Bxa4 22. Qxa4 Nf5 23. e4 Nd6 24. Qc2 Nf4 25. g3 Qh5 26. Nh4 b6 27. Bb4 Ne2+ 28. Kg2 Nxc1 29. Rxc1 a5 30. Bxd6 cxd6 31. Nf5 Qf7 32. Rb1 Qc7 33. Qb3 g6 34. Ne3 Rdc8 35. h4 Kg7 36. Qd3 Qd7 37. Rb5 Rc5 38. Rb1 Qc7 39. a4 Rc8 40. Qb3 Qd7 41. Qa2 Rb8 42. f3 f5 43. Qc2 f4 44. gxf4 exf4 45. Qb2+ Kg8 46. Ng4 Qg7 47. Nf6+ Kf7 48. Ng4 Qxb2+ 49. Rxb2 Rxc4 50. Nh6+ Kg7 51. Ng4 Rb4 52. Rc2 Rxa4 53. Rc7+ Kf8 54. Nf6 Ra2+ 55. Kh3 h6 56. Rd7 Rb2 57. Nh7+ Ke8 58. Nf6+ Kf8 59. h5 gxh5 60. e5 dxe5 61. Nh7+ Ke8 62. Nf6+ Kf8 63. Nh7+ Kg8 64. Nf6+ Kf8 1/2-1/2
2023.05.02 Titled Tue 2nd May Early
967544 Dyachuk, Artem (2312) Koellner, Ruben Gideon (2426) 0-1
1. c4 d6 2. Nc3 e5 3. g3 g6 4. Bg2 Bg7 5. e3 c5 6. Nge2 Nc6 7. O-O Nge7 8. b3 O-O 9. Bb2 Be6 10. Qc2 Rc8 11. Rac1 b6 12. Rfd1 d5 13. cxd5 Nxd5 14. Qb1 Nxc3 15. dxc3 Qc7 16. c4 Rcd8 17. Nc3 Bf5 18. Qa1 Nb4 19. a3 Nd3 20. Nd5 Rxd5 21. cxd5 Nxc1 22. Rxc1 Rd8 23. f4 f6 24. e4 Bd7 25. b4 exf4 26. Bxf6 Bxf6 27. Qxf6 Rf8 28. Qg5 f3 29. Bf1 Qb8 30. Bc4 b5 31. Bd3 c4 32. Bf1 Qb6+ 33. Kh1 Qd4 34. Re1 f2 35. Rc1 Qxe4+ 36. Bg2 Qe1+ 37. Bf1 Qe4+ 38. Bg2 f1=Q+ 0-1
2023.05.02 Titled Tue 2nd May Early
967736 Chernomordik, P (2150) Koellner, Ruben Gideon (2426) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. g4 d5 6. dxe5 Nxe4 7. Qxd5 Nxc3 8. bxc3 c6 9. Qd3 Qa5 10. e6 fxe6 11. Bg2 Ne5 12. Nxe5 Qxe5+ 13. Be3 Bb4 14. O-O Bxc3 15. f4 Qa5 16. Rad1 O-O 17. Be4 g6 18. Bxg6 hxg6 19. Qxg6+ Bg7 20. Bd4 Qc7 21. Be5 Qf7 22. Qg5 b6 23. h4 Kh7 24. h5 Ba6 25. Rd7 Qxd7 26. Qg6+ Kh8 27. Qh6+ Kg8 28. Qg5 Bxf1 29. h6 Rf7 30. hxg7 Rxg7 31. Bxg7 Qxg7 32. Qh4 Be2 33. g5 Bf3 34. Kf2 Be4 35. Qg4 Bf5 36. Qe2 Rd8 37. Kg3 Qd4 0-1
2023.05.02 Titled Tue 2nd May Late
967911 Lopez del Alamo, An (2280) Koellner, Ruben Gideon (2426) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. O-O h6 8. Re1 Qc7 9. Bf1 Nf8 10. g3 Ng6 11. Bg2 O-O 12. b3 Be6 13. Bb2 Rad8 14. Qd2 Rfe8 15. Rad1 Bf8 16. h3 a6 17. Kh2 b5 18. axb5 axb5 19. d5 cxd5 20. exd5 Bd7 21. Na2 Ra8 22. Nb4 Rec8 23. Ra1 Rxa1 24. Rxa1 Ne4 25. Qe3 f5 26. Nd2 Nxd2 27. Qxd2 Be7 28. Ra6 Qb7 29. Qd3 Ra8 30. Rxa8+ Qxa8 31. g4 Nf4 32. Qg3 Nxg2 33. Qxg2 Bg5 34. Qf3 Bf4+ 35. Kg2 fxg4 36. hxg4 Qc8 37. Nc6 Kh8 38. Ne7 Qxc2 39. Ng6+ Qxg6 40. Ba3 Qxg4+ 41. Qxg4 Bxg4 42. Bxd6 Bd1 43. b4 Bb3 44. Kf3 Bxd5+ 45. Kg4 Kg8 46. Kf5 Kf7 47. Bxe5 Bxe5 48. Kxe5 Bc4 49. f4 g6 50. f5 gxf5 51. Kxf5 h5 52. Kg5 Be2 0-1
2023.05.02 Titled Tue 2nd May Late
968066 Koellner, Ruben Gideon (2426) Prieto Aranguren, A (2258) 1-0
1. d4 d5 2. Nf3 Nf6 3. Nbd2 c6 4. e3 g6 5. b4 Bg7 6. c4 O-O 7. a4 Bf5 8. Be2 Ne4 9. Nxe4 dxe4 10. Nd2 a5 11. b5 c5 12. Nb3 cxd4 13. exd4 e5 14. d5 b6 15. Ba3 Re8 16. Rc1 Bh6 17. Rc3 Qh4 18. O-O Nd7 19. c5 bxc5 20. Nxc5 Nxc5 21. Bxc5 Rac8 22. Qb3 Bd2 23. Rc4 Qg5 24. Rd1 e3 25. Bxe3 Bxe3 26. Qxe3 Qxe3 27. fxe3 Bc2 28. Rf1 Rxc4 29. Bxc4 Bxa4 30. d6 Rf8 31. Rxf7 Bc2 32. Rc7+ Kh8 33. d7 Bf5 34. b6 Rd8 35. b7 Bxd7 36. Rxd7 1-0
2023.05.02 Titled Tue 2nd May Late
968291 Koellner, Ruben Gideon (2426) Kamsky, G (2665) 0-1
1. d4 f5 2. Bg5 g6 3. Nc3 Bg7 4. e4 fxe4 5. Nxe4 d5 6. Ng3 Nh6 7. Nf3 Nf7 8. Bf4 Bg4 9. Be2 Nc6 10. c3 Qd7 11. Qd2 O-O-O 12. O-O-O Kb8 13. h3 Bf5 14. Nxf5 gxf5 15. Ng5 Nd6 16. Bxd6 exd6 17. Bd3 Bh6 18. h4 Rhg8 19. Kb1 Rdf8 20. Qf4 Qg7 21. g3 Nd8 22. Qf3 Bxg5 23. hxg5 Nf7 24. Qxd5 Nxg5 25. Bxf5 Qf6 26. g4 h6 27. Rde1 c6 28. Qg2 Re8 29. f4 Nf7 30. Qf2 a6 31. Rxe8+ Rxe8 32. Re1 Re7 33. Rxe7 Qxe7 34. a3 d5 35. Kc2 Nd6 36. b3 Nxf5 37. gxf5 Qf6 38. Qe3 Qxf5+ 39. Kd2 Ka7 40. b4 h5 41. c4 h4 42. c5 h3 0-1
2023.05.02 Titled Tue 2nd May Late
968507 Meunier-Pion, Jean (2213) Koellner, Ruben Gideon (2426) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Ba2 Qc7 9. h3 Nf8 10. Re1 g5 11. Qd3 Ng6 12. b4 g4 13. hxg4 Bxg4 14. dxe5 dxe5 15. b5 Rd8 16. Qe3 Nh5 17. Nh2 Bc8 18. Qf3 Nhf4 19. g3 Nh3+ 20. Kh1 Rh7 21. Be3 Ng5 22. Qh5 Kf8 23. Rad1 Rxd1 24. Rxd1 Kg7 25. f4 exf4 26. gxf4 Nxf4 27. Bxf4 Qxf4 28. Rf1 Qg3 29. Rxf7+ Nxf7 30. Qxf7+ Kh8 31. Qe8+ Kg7 32. Qg8+ Kf6 33. Qxg3 Rg7 34. e5+ Kf5 35. Qxg7 Bg5 36. Qf8+ Kxe5 37. Qxc8 Kd4 38. Qxb7 Kxc3 39. Qxc6+ Kb2 40. Qa6 Be3 41. c4 h5 42. Qe6 h4 43. Qxe3 h3 44. Qxh3 a5 45. Qd7 Ka1 46. Qa7 Kb2 47. Qxa5 Ka1 48. Qb4 Kxa2 49. Ng4 Ka1 50. Nf2 Ka2 51. Nd3 Ka1 52. Qb2# 1-0
2023.05.02 Titled Tue 2nd May Late
968574 Koellner, Ruben Gideon (2426) Olsson, William (2355) 1-0
1. d4 d5 2. Nf3 Nf6 3. Nbd2 c6 4. e3 Bf5 5. Ne5 e6 6. g4 Bg6 7. h4 Nbd7 8. h5 Be4 9. f3 Bd6 10. fxe4 Nxe4 11. Nxe4 dxe4 12. Nxd7 Bg3+ 13. Kd2 Qxd7 14. c3 O-O-O 15. Kc2 f5 16. Qe2 g6 17. Bd2 e5 18. Bh3 Kb8 19. Raf1 Rhf8 20. hxg6 hxg6 21. gxf5 gxf5 22. Qg2 Rg8 23. Bxf5 1-0
2023.05.02 Titled Tue 2nd May Late
968873 Gutierrez Olivares, D (2354) Koellner, Ruben Gideon (2426) 0-1
1. Nf3 d6 2. g3 Nf6 3. c4 e5 4. Bg2 Be7 5. O-O O-O 6. Nc3 Nbd7 7. b3 Re8 8. Bb2 c6 9. d3 Bf8 10. Nd2 Nc5 11. Qc1 a5 12. Qc2 Bf5 13. e4 Bd7 14. Kh1 Ne6 15. Ne2 c5 16. h3 b5 17. f4 Nd4 18. Bxd4 cxd4 19. f5 h6 20. g4 Nh7 21. Ng3 Be7 22. Nf3 Ng5 23. Nh5 Nxf3 24. Rxf3 Bg5 25. Qf2 Bh4 26. Qd2 Qg5 27. Qe2 bxc4 28. dxc4 Bc6 29. Raf1 Reb8 30. f6 g6 31. Ng7 Bd7 32. Rg1 a4 33. Bf1 axb3 34. axb3 Ra3 35. Nf5 Rbxb3 36. Rxb3 Rxb3 37. Qa2 Rb8 38. Qa7 Rd8 39. Ne7+ Kh7 40. Qc7 Qxf6 41. Qxd8 Qxe7 42. Qxe7 Bxe7 43. Bd3 Bd8 44. Ra1 Bb6 45. Rb1 Bc5 46. Rb7 Be6 47. Kg2 Kg7 48. Kf3 Kf6 49. Rb1 Kg5 50. Kg3 Kf6 51. h4 Kg7 52. Rf1 Bb4 53. Rb1 Bc5 54. Rc1 Kf8 55. Be2 Ke7 56. Bd1 Bb4 57. Ba4 d3 58. Bb5 d2 59. Rd1 h5 60. gxh5 gxh5 61. Ba4 Bxc4 62. Kf3 Be6 63. Rg1 Bg4+ 64. Kg3 f5 65. exf5 Bxf5 66. Rb1 Bxb1 67. Bd1 Bg6 0-1
2023.05.02 Titled Tue 2nd May Late
968927 Tsotsonava, Elene (2053) Koellner, Ruben Gideon (2426) 1-0
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. h3 Nf8 10. Be3 g5 11. dxe5 dxe5 12. Nd2 Ng6 13. Nf1 g4 14. hxg4 Bxg4 15. f3 Be6 16. Bxe6 fxe6 17. Qe2 h5 18. Qc4 Kf7 19. Ng3 h4 20. Nf5 Nh5 21. Nh6+ Kf6 22. Ng4+ Kf7 23. Rad1 Nhf4 24. Bxf4 Nxf4 25. Rd7 Qb6+ 26. Kh2 Ng6 27. Red1 Rad8 28. R1d6 Rxd7 29. Qxe6+ Kf8 30. Rxd7 Rg8 31. Nxe5 1-0
2023.05.02 Titled Tue 2nd May Late
969112 Koellner, Ruben Gideon (2426) Bayo Milagro, Alvaro (2287) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 a5 6. b5 O-O 7. c4 Nbd7 8. cxd5 Nxd5 9. Bc4 N7b6 10. O-O Nxc4 11. Nxc4 Bg4 12. Bb2 a4 13. Ba3 Nc3 14. Qc2 Nxb5 15. Rab1 Nxa3 16. Nxa3 Bxf3 17. gxf3 e5 18. dxe5 Bxe5 19. f4 Bg7 20. Rxb7 Qc8 21. Qc6 Ra6 22. Qf3 c5 23. Rc1 Rc6 24. Rb5 c4 25. Rb4 c3 26. Nc2 Rc4 27. Qe2 Rxb4 28. Nxb4 Rd8 29. Rc2 Qc5 30. Nd3 Qc4 31. Ne5 Qxe2 32. Rxe2 Bxe5 33. fxe5 Rd2 34. Kf1 Rb2 35. Re1 c2 36. Ke2 c1=Q+ 0-1
2023.05.01 ChessKid Cup Play-In
963214 Koellner, Ruben Gideon (2421) Van Foreest, Jorden (2680) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 Bf5 4. Bd3 e6 5. Bxf5 exf5 6. c4 dxc4 7. Qa4+ Nbd7 8. Qxc4 c6 9. O-O Bd6 10. b3 Qe7 11. a4 a5 12. Ba3 O-O 13. Bxd6 Qxd6 14. Nc3 Rfe8 15. Rfe1 g6 16. Rad1 Nb6 17. Qd3 Rad8 18. Qc2 Nbd5 19. Nxd5 Nxd5 20. h3 Kg7 21. Ne5 h5 22. Nc4 Qb4 23. Qd2 Ra8 24. Qxb4 axb4 25. Rc1 Re7 26. Ne5 f4 27. e4 Nc3 28. f3 Rd8 29. Nd3 Rxd4 30. Nxb4 Rxb4 31. Rxc3 Rd7 32. Kf2 Kf6 33. h4 Ke5 34. Rc5+ Ke6 35. Rc3 Rd6 36. Re2 Ke5 37. Rec2 Rd1 38. Rc5+ Ke6 39. Rb2 Ra1 40. a5 Ra3 41. Rd2 Rbxb3 42. e5 Rd3 43. Rb2 Rd5 44. Rxd5 cxd5 45. Rb6+ Kxe5 46. Rxb7 Rxa5 47. Rxf7 Ra6 48. Ke2 Rb6 49. Rf8 Rb2+ 50. Kf1 d4 51. Rg8 d3 52. Rd8 Rd2 53. Rd7 Rd1+ 54. Kf2 d2 55. Rd3 g5 56. hxg5 h4 57. Rd8 Kf5 58. Rd5+ Kg6 59. Rd6+ Kxg5 60. Rd5+ Kg6 61. Rd4 h3 62. gxh3 Kg5 63. Rd8 Rh1 64. Rxd2 Rh2+ 65. Ke1 Rxd2 66. Kxd2 Kh4 67. Kd3 Kxh3 68. Kd4 Kg2 69. Ke4 Kg3 70. Kd3 Kxf3 71. Kd2 Kg2 0-1
2023.05.01 ChessKid Cup Play-In
963292 Frolyanov, D (2491) Koellner, Ruben Gideon (2421) 1-0
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Nfd2 f5 5. e3 Nf6 6. Nc3 c5 7. d5 Nbd7 8. b3 g6 9. Bb2 Bg7 10. Be2 O-O 11. Qc2 Ne5 12. O-O-O a6 13. Kb1 Bd7 14. h3 Qa5 15. f4 exf3 16. gxf3 b5 17. f4 Nf7 18. Bd3 Rfe8 19. Rde1 bxc4 20. Nxc4 Qc7 21. Rhg1 Bb5 22. e4 Bxc4 23. Bxc4 Nxe4 24. Nxe4 Bxb2 25. Kxb2 Rxe4 26. Rxe4 fxe4 27. Qxe4 Kf8 28. Re1 Qd8 29. Qe6 Ra7 30. f5 Ng5 31. Qe3 Qf6+ 32. Kc2 gxf5 33. Qe8+ Kg7 34. Rg1 Kh6 35. Be2 Rf7 36. Qe3 f4 37. Qf2 Ne4 38. Qf3 Ng3 39. Bd3 Re7 40. Qf2 Re3 41. Qd2 Qd4 42. Bxa6 Qxd2+ 43. Kxd2 Ne4+ 44. Kc2 f3 45. Bd3 Nf2 46. Bc4 Nxh3 47. Rh1 f2 48. Bf1 Kg5 49. Rxh3 Re1 50. Rh1 h5 51. a4 Kf4 52. a5 Ra1 53. a6 1-0
2023.05.01 ChessKid Cup Play-In
963370 Koellner, Ruben Gideon (2421) Makarian, Rudik (2547) 1-0
1. d4 Nf6 2. Nf3 c5 3. e3 d5 4. Nbd2 cxd4 5. exd4 Nc6 6. c3 Qc7 7. Bd3 Bg4 8. Qa4 e6 9. Ne5 Bd6 10. Nxg4 Nxg4 11. h3 Nf6 12. O-O O-O 13. Qd1 a6 14. Qe2 Rab8 15. Nf3 Bf4 16. Bxf4 Qxf4 17. g3 Qc7 18. Ne5 Nxe5 19. dxe5 Nd7 20. f4 g6 21. Rae1 b5 22. h4 b4 23. cxb4 Rxb4 24. h5 Qb6+ 25. Rf2 Nc5 26. hxg6 hxg6 27. b3 Kg7 28. Kg2 Rh8 29. Bb1 Ne4 30. Rff1 Rd4 31. Bxe4 Rxe4 32. Qd3 Rxe1 33. Rxe1 Qa5 34. Re2 Qc5 35. Rc2 Qb4 36. Qe3 a5 37. Re2 a4 38. bxa4 Qb1 39. Kf3 Qh1+ 40. Rg2 Qd1+ 41. Qe2 Qxa4 42. Qc2 Qa3+ 43. Kg4 Rh1 44. Rh2 Rg1 45. Rh3 Qc1 46. Qh2 Qd1+ 47. Kg5 Kf8 48. Rh8+ Ke7 49. Qh4 Kd7 50. Kf6 Qd3 51. Kxf7 Qf5+ 52. Kg7 Kc6 53. Rc8+ Kb5 54. Rb8+ Kc4 55. Rc8+ Kd3 56. Rf8 Qe4 57. Rf6 d4 58. Rxg6 Ke3 59. Rxe6 Rb1 60. Re7 Rb6 61. Qg5 d3 62. f5+ Ke2 63. f6 d2 64. Rd7 d1=Q 65. Qh5+ Kf2 66. Rxd1 Rb7+ 67. f7 Qe3 68. Rd6 Qe4 69. Rf6+ Ke3 70. Qf5 Qd4 71. Kg8 Kd2 72. f8=Q Qe3 73. Qf4 Rg7+ 74. Kxg7 1-0
2023.05.01 ChessKid Cup Play-In
963426 Ibarra Jerez, JC (2563) Koellner, Ruben Gideon (2421) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. O-O h6 8. a5 Qc7 9. b3 Nf8 10. h3 g5 11. Qd3 Ng6 12. d5 Nh5 13. Nh2 Nhf4 14. Bxf4 exf4 15. Qd4 Ne5 16. a6 b5 17. Be2 Bf6 18. dxc6 Nf3+ 19. Nxf3 Bxd4 20. Nxd4 Qb6 21. Ncxb5 O-O 22. Rfd1 Bxa6 23. Rxa6 Qxa6 24. Nf5 Rfe8 25. Nxh6+ Kf8 26. Nd4 Qb6 27. Bf3 Rac8 28. Nhf5 Rxc6 29. Nxc6 Qxc6 30. Rxd6 Qxc2 31. Rd7 Qxb3 32. Rxa7 Rc8 33. Bh5 Qb1+ 34. Kh2 Qb6 35. Rxf7+ Kg8 36. Ne7+ Kh8 37. Bg6 Qxf2 38. Rh7# 1-0
2023.05.01 ChessKid Cup Play-In
963501 Narayanan, Sri (2559) Koellner, Ruben Gideon (2421) 1-0
1. Nf3 d6 2. d4 Nf6 3. c4 g6 4. g3 Bg7 5. Bg2 O-O 6. Nc3 Nbd7 7. O-O e5 8. e4 Re8 9. h3 c6 10. Re1 a6 11. a4 a5 12. b3 Qc7 13. Be3 Nb8 14. Qd2 Na6 15. Rad1 Nb4 16. d5 c5 17. Re2 Bd7 18. Bh6 Kh8 19. Nh4 Bxh6 20. Qxh6 Qd8 21. Rf1 Nh5 22. Nf3 Qf6 23. Kh2 Qg7 24. Qd2 f5 25. exf5 gxf5 26. Qg5 Nf6 27. Qxg7+ Kxg7 28. Rd1 h6 29. Nh4 Rf8 30. Nb5 Ne8 31. f4 e4 32. g4 fxg4 33. Rxe4 Rf7 34. hxg4 Bxg4 35. Rg1 Kh7 36. Re3 h5 37. Be4+ Kh6 38. Bg6 Rf8 39. Re7 Ng7 40. Nxd6 Rxf4 41. Nf7+ Rxf7 42. Bxf7 Nc2 43. Bxh5 Bxh5 44. Rgxg7 Nd4 45. Kh3 Rh8 46. d6 Be8 47. d7 1-0
2023.05.01 ChessKid Cup Play-In
963573 Koellner, Ruben Gideon (2421) Predke, A (2685) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 Nc6 5. Nbd2 cxd4 6. exd4 a6 7. h3 Bf5 8. Nh4 Bg6 9. Nxg6 hxg6 10. Bd3 e6 11. O-O g5 12. Re1 Be7 13. Nf1 Nh5 14. Qg4 Kf8 15. Qf3 Qd6 16. g3 Kg8 17. Bd2 Rf8 18. Re2 f5 19. Rae1 Rh6 20. Nh2 Qd7 21. Qg2 Bd8 22. Nf3 Rg6 23. Kh1 Qf7 24. Bc2 Re8 25. Bb3 g4 26. hxg4 fxg4 27. Ne5 Nxe5 28. Rxe5 Nf6 29. Bc2 Bc7 30. Bxg6 Qxg6 31. Rxe6 Rxe6 32. Rxe6 Qf5 33. Re7 Ne4 34. Be3 Bd6 35. Rxb7 Qh5+ 36. Kg1 Qf5 37. Rb6 Be7 38. Qh1 Bg5 39. Rb8+ Kf7 40. Qh5+ Ke7 41. Qe8+ Kd6 42. Qe5+ Qxe5 43. dxe5+ Kc7 44. Rg8 Bxe3 45. fxe3 Kd7 46. Rxg7+ Ke6 47. Rxg4 Kxe5 48. Rxe4+ Kxe4 49. Kf2 Kd3 50. g4 Kd2 51. g5 1-0
2023.05.01 ChessKid Cup Play-In
963631 Koellner, Ruben Gideon (2421) Demchenko, A (2623) 1/2-1/2
1. d4 Nf6 2. Nf3 d6 3. Nbd2 Bf5 4. Nh4 Bg6 5. Nxg6 hxg6 6. e4 e6 7. c3 c6 8. Bd3 Nbd7 9. Nf3 Qc7 10. Qe2 e5 11. O-O Be7 12. Rd1 O-O 13. Bg5 Rae8 14. Qc2 Nh5 15. Bxe7 Rxe7 16. g3 Nhf6 17. Re1 Rfe8 18. b4 d5 19. dxe5 Nxe5 20. Nxe5 Rxe5 21. f4 Rh5 22. e5 Ng4 23. Re2 f5 24. Rae1 Kf7 25. h4 b5 26. a4 a6 27. Kg2 Ke7 28. Ra1 Qb6 29. Qc1 Rhh8 30. Qg1 d4 31. axb5 cxb5 32. Qxd4 Qc6+ 33. Kg1 Rd8 34. Qa7+ Rd7 35. Rxa6 Qxc3 36. e6 Rxa7 37. Rxa7+ Kd6 38. Rd7+ Kc6 39. Rc2 Qxc2 40. Bxc2 Ra8 41. Bb3 Ra3 42. Bd5+ Kb6 43. e7 Rxg3+ 44. Kh1 Re3 45. Rd6+ Kc7 46. Re6 Rxe6 47. Bxe6 Nf6 48. Kg2 Kd6 49. Bf7 Kxe7 50. Bxg6 Nd5 51. Kf3 Nxb4 52. Bxf5 Nc6 53. Ke4 Kf6 54. Bd7 Na5 55. Bxb5 Nb3 56. Kd5 Nd2 57. Be2 Nb3 58. Bd3 Nd2 59. Be4 Nf1 60. Bf3 Ng3 61. Bg4 Nf1 62. Kd4 Nd2 63. Kd3 Nb3 64. Kc4 Nd2+ 65. Kd3 Nb3 66. Ke4 Nc5+ 67. Kd4 Nb7 68. Kd5 Nd8 69. Ke4 Nf7 70. Bd7 Nd6+ 71. Kf3 Nf7 72. Kg4 Nh6+ 73. Kg3 Nf7 74. Kf3 Nd6 75. Bg4 Nf7 76. Ke4 Nh6 77. Bh3 Ng8 78. Kd5 Ne7+ 79. Ke4 Ng6 80. h5 Ne7 81. Bg4 Ng8 82. Kf3 Nh6 83. Kg3 g6 84. hxg6 Kxg6 85. Bh3 Kf6 86. Kf3 Nf7 87. Ke4 Ng5+ 88. fxg5+ Kxg5 1/2-1/2
2023.05.01 ChessKid Cup Play-In
963691 Muradli, Mahammad (2531) Koellner, Ruben Gideon (2421) 1-0
1. Nf3 d6 2. d4 Nf6 3. c4 g6 4. Nc3 Bf5 5. Nh4 Bd7 6. e4 e5 7. Nf3 Nc6 8. d5 Ne7 9. Be2 Bg7 10. O-O O-O 11. b4 a5 12. Ba3 axb4 13. Bxb4 b6 14. a4 Nh5 15. Re1 f5 16. Bf1 Nf6 17. Bd3 fxe4 18. Nxe4 Nxe4 19. Bxe4 Nf5 20. a5 bxa5 21. Bxa5 Nd4 22. Nxd4 exd4 23. g3 Qf6 24. Qd2 Ra7 25. Bb4 Rxa1 26. Rxa1 Bf5 27. Re1 Bxe4 28. Rxe4 Qf5 29. Re7 d3 30. Qe3 Be5 31. Rxc7 Ra8 32. Kg2 Ra2 33. Bd2 h6 34. Qxh6 Qe4+ 35. f3 Qe2+ 36. Kh3 1-0
2023.05.01 ChessKid Cup Play-In
963753 Tregubov, P (2553) Koellner, Ruben Gideon (2421) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. Ba2 Nf8 10. Nh4 g6 11. h3 Ne6 12. Nf3 g5 13. Qd3 Nh5 14. Qc4 Rh7 15. Nd1 Nhf4 16. Ne3 Bf6 17. dxe5 dxe5 18. b3 Nd4 19. Nxd4 exd4 20. Nf5 Bxf5 21. exf5+ Kf8 22. Bb2 Rd8 23. Rad1 c5 24. b4 b6 25. bxc5 Qc6 26. f3 Qxc5 27. Qxc5+ bxc5 28. Ba3 Rc8 29. Kh2 Kg7 30. g3 Nh5 31. Bc4 Rhh8 32. Rb1 Rc7 33. a5 Be7 34. Rxe7 Rxe7 35. Bxc5 Rd7 36. a6 Rc8 37. Rb5 Nf6 38. Bd3 Rd5 39. Bxa7 Rxb5 40. Bxb5 Rxc2+ 41. Kg1 Rb2 42. Bf1 Rb4 43. Bc5 Ra4 44. a7 Nd5 45. Bxd4+ f6 46. Bb5 Ra3 47. Bc6 Nc7 48. Bb6 Ra6 49. Bxc7 Rxa7 50. Bb8 Ra2 51. Be4 Re2 52. Bd6 Kf7 53. h4 gxh4 54. gxh4 Kg7 55. Bc5 Rd2 56. Be3 Re2 57. Bf2 Ra2 58. Kg2 Ra1 59. Kg3 Rc1 60. Be3 Re1 61. Bf4 Rg1+ 62. Kh3 Rh1+ 63. Kg4 Rg1+ 64. Kh5 Kh7 65. Bxh6 Rg2 66. Bd5 Rg3 67. Bf4 Rg1 68. Bf7 Kg7 69. Bd5 Rg2 70. Bc4 Rg1 71. Be3 Rg3 72. Be2 Rg2 73. Bd1 Rg3 74. Bd4 Rg2 75. Bb3 Rg3 76. Bd5 Rg2 77. Be3 Rg3 78. Bb6 Rg2 79. f4 Rg3 80. Bf2 Rd3 81. Be4 Rd2 82. Bc5 Re2 83. Bf3 Rc2 84. Bg1 Rc1 85. Bh2 Rc2 86. Bg3 Rc1 87. Kg4 Rg1 88. h5 Kh6 89. Bd5 Rd1 90. Bf7 Kg7 91. Be6 Rg1 92. Kf3 Rh1 93. Kg4 Rg1 94. Bd7 Kh6 95. Be8 Kg7 96. Kf3 Rf1+ 97. Bf2 Kf8 98. Bg6 Kg7 99. Ke2 Ra1 100. Bd4 Ra6 101. Kd3 Rd6 102. Kc4 Rc6+ 103. Kd5 Ra6 104. Be8 Kh6 105. Bc6 Kxh5 106. Bxf6 Kg4 107. Be5 Kxf5 108. Bd7+ Kg6 109. Ke4 Kf7 110. Kf5 Ke7 111. Bb5 Rb6 112. Bc4 Rc6 113. Bd5 Rc5 114. Bf3 Ra5 115. Bg4 Kf7 116. Bh5+ Ke7 117. Kg5 Ra2 118. f5 Rg2+ 119. Bg4 Kf7 120. f6 Rg1 121. Bd4 Rb1 122. Bh5+ Ke6 123. Kg6 Rf1 124. Bg4+ Kd6 125. f7 Rf4 126. Bf5 1-0
2023.04.25 Titled Tue 25th Apr Early
971327 Koellner, Ruben Gideon (2421) Onslow, Alfie (2182) 1-0
1. d4 Nf6 2. Nf3 c5 3. e3 cxd4 4. exd4 b6 5. c3 Bb7 6. Bd3 e6 7. O-O Be7 8. Nbd2 O-O 9. Re1 d6 10. Qe2 Nbd7 11. Ne4 Nxe4 12. Bxe4 Bxe4 13. Qxe4 Nf6 14. Qe2 Qc7 15. Bg5 h6 16. Bxf6 Bxf6 17. a4 Rfc8 18. Red1 Qc4 19. Qxc4 Rxc4 20. Nd2 Rc7 21. d5 e5 22. Ne4 Be7 23. g4 g6 24. Rd3 f5 25. gxf5 gxf5 26. Ng3 Rf8 27. Rf3 f4 28. Ne4 Rc4 29. Nd2 Rc7 30. Rh3 Bg5 31. Ne4 Rc4 32. Nxd6 Rd8 33. Nxc4 1-0
2023.04.25 Titled Tue 25th Apr Early
971743 Koellner, Ruben Gideon (2421) Grabinsky, Aaron (2407) 0-1
1. d4 e6 2. Nf3 Nf6 3. Nbd2 d5 4. e3 b6 5. Bd3 Bb7 6. Ne5 c5 7. c3 Bd6 8. f4 Nc6 9. Qf3 a6 10. O-O Ne7 11. g4 Qc7 12. g5 Nd7 13. Qh3 g6 14. Ndf3 Nf5 15. Bd2 Nb8 16. Ng4 Nd7 17. Nfe5 Be7 18. Nxd7 Qxd7 19. Ne5 Qc7 20. Rae1 Bd6 21. Ng4 O-O-O 22. Qf3 Kb8 23. a4 Ka7 24. Ra1 c4 25. Bxf5 exf5 26. Ne5 h6 27. h4 hxg5 28. hxg5 Bxe5 29. fxe5 Rh5 30. Kg2 Rdh8 31. Rh1 Rxg5+ 32. Kf2 Rgh5 33. Rxh5 Rxh5 34. Rh1 Rxh1 35. Qxh1 Bc6 36. Qh7 Qd7 37. a5 bxa5 38. Ke2 Ba4 39. Kf3 Bd1+ 40. Kf4 Kb6 41. Qg7 Qe7 42. Qh8 Kb5 43. Qb8+ Ka4 44. Qh8 Kb3 45. Qb8+ Kc2 46. Be1 a4 47. Qd6 Qe8 48. Qa3 Kd3 49. Bh4 Qh8 50. Bf6 Qh6+ 51. Kg3 Qxe3+ 52. Kh4 Qf4+ 53. Kh3 Bg4+ 54. Kg2 Qf3+ 55. Kg1 Qg3+ 56. Kf1 Be2# 0-1
2023.04.25 Titled Tue 25th Apr Early
971856 Bazilius, Augustinas (2073) Koellner, Ruben Gideon (2421) 0-1
1. d4 d6 2. c4 e5 3. dxe5 dxe5 4. Qxd8+ Kxd8 5. f4 Be6 6. e4 Bd6 7. f5 Bd7 8. Nc3 Bc5 9. Nf3 f6 10. Bd2 Nc6 11. O-O-O Nd4 12. Nxd4 Bxd4 13. Be2 Ne7 14. g4 h6 15. h4 c6 16. Bf3 Kc7 17. g5 hxg5 18. hxg5 Raf8 19. gxf6 gxf6 20. Rxh8 Rxh8 21. Rh1 Rxh1+ 22. Bxh1 Be8 23. Bf3 Bf7 24. b3 a6 25. Ne2 Bc5 26. Ng3 Kd7 27. Nh5 Ng8 28. Kc2 b5 29. cxb5 cxb5 30. Kd3 Ke7 31. Be3 Bxe3 32. Kxe3 Bxh5 33. Bxh5 Kd6 34. Kd3 Kc5 35. Kc3 b4+ 36. Kd3 Ne7 37. Be8 Nc8 38. Bh5 Nd6 39. Be2 Nb5 40. Ke3 Nc7 41. Bc4 a5 42. Kd3 Ne8 43. Bf7 Nd6 44. Bd5 Nb5 45. Kc2 Nc3 46. a3 Nxd5 47. exd5 Kxd5 48. axb4 axb4 0-1
2023.04.25 Titled Tue 25th Apr Early
972101 Shimanov, A (2581) Koellner, Ruben Gideon (2421) 1-0
1. b3 d5 2. Bb2 Nd7 3. c4 e6 4. Nf3 Ngf6 5. g3 c6 6. Bg2 Bd6 7. O-O O-O 8. d4 Ne4 9. Nc3 f5 10. e3 Qf6 11. Ne2 g5 12. Ne1 Qh6 13. Nd3 Nef6 14. f3 g4 15. f4 b5 16. Qc1 Ba6 17. cxd5 b4 18. Rd1 cxd5 19. Qc6 Rab8 20. Qxa6 Rb6 21. Qxa7 Rfb8 22. Rdc1 Qf8 23. Nc5 Bxc5 24. dxc5 Ra8 25. Qc7 Rc8 26. cxb6 Rxc7 27. bxc7 Qc8 28. Nd4 1-0
2023.04.25 Titled Tue 25th Apr Early
972461 Koellner, Ruben Gideon (2421) Hajiyev, K (2194) 1-0
1. d4 d5 2. Nf3 c5 3. e3 cxd4 4. exd4 Nc6 5. c3 Nf6 6. Nbd2 Bg4 7. Bb5 a6 8. Bxc6+ bxc6 9. Qa4 Bd7 10. Ne5 c5 11. Nxd7 Qxd7 12. Qxd7+ Nxd7 13. dxc5 Nxc5 14. Nb3 e6 15. Nxc5 Bxc5 16. Ke2 Ke7 17. Be3 Rhc8 18. Bxc5+ Rxc5 19. Kd3 a5 20. Rhc1 Rac8 21. Kd2 h5 22. b4 Rc4 23. a3 h4 24. h3 e5 25. Rab1 a4 26. b5 Rb8 27. b6 Kd6 28. Rb5 Kc6 29. Rcb1 Rb7 30. Ra5 Rxb6 31. Rxb6+ Kxb6 32. Rxd5 f6 33. Rd8 Rf4 34. f3 Kc5 35. Rc8+ Kd5 36. Kd3 g5 37. Rb8 Kc5 38. Rb4 f5 39. Kd2 e4 40. fxe4 Rxe4 41. Kd3 Re1 42. Rxa4 Rg1 43. Ra5+ Kb6 44. Rxf5 Rxg2 45. Rf3 Kb5 46. Ke4 Ka4 47. c4 Rc2 48. Kf5 Rxc4 49. Kxg5 Rc5+ 50. Kxh4 Kb5 51. Kg4 Rc4+ 52. Kg5 Rc8 53. h4 Rg8+ 54. Kh5 Rh8+ 55. Kg4 Rg8+ 56. Kh3 Rh8 57. Rf4 Ka5 58. Kg4 Rg8+ 59. Kf5 Rf8+ 60. Ke5 Re8+ 61. Kf6 Rf8+ 62. Ke5 Re8+ 63. Kd6 Rh8 64. a4 Rh6+ 65. Ke5 Rh5+ 66. Kf6 Rh8 67. Kg7 Rh5 68. Kg6 Rc5 69. h5 Rc6+ 70. Rf6 Rc1 71. h6 Rg1+ 72. Kf7 Rh1 73. Kg7 Kxa4 74. h7 Rg1+ 75. Rg6 Rb1 76. h8=Q 1-0
2023.04.25 Titled Tue 25th Apr Early
972585 Koellner, Ruben Gideon (2421) Alexikov, A (2223) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O Nxe4 7. Nxe4 d5 8. Bd3 dxe4 9. Bxe4 Nd7 10. c3 Nf6 11. Bc2 c6 12. Re1 Bg4 13. h3 Be6 14. Qe2 Re8 15. Ng5 Bd7 16. Bb3 e6 17. Nf3 Nd5 18. Bg5 Qc7 19. Rad1 h6 20. Bc1 a5 21. a4 Kh7 22. Ne5 Rf8 23. Bc2 Be8 24. h4 f6 25. Nc4 Bf7 26. h5 f5 27. hxg6+ Kxg6 28. Ne5+ Bxe5 29. dxe5 Kh7 30. Qd2 Rh8 31. Qxh6+ Kg8 32. Qg5+ Kf8 33. Qg3 Rd8 34. Bg5 Rd7 35. Bb1 Rg8 36. Qh4 Bg6 37. Bh6+ Ke8 38. c4 Nb4 39. Qf6 Re7 40. Rd6 Bf7 41. Bg5 Rd7 42. Red1 Rxd6 43. Rxd6 Rxg5 44. Qxg5 c5 45. Qh6 Nc6 46. Qh8+ Ke7 47. Qf6+ Ke8 48. g4 fxg4 49. Qh8+ Ke7 50. Qg7 Nd4 51. Bg6 Ke8 52. Qg8+ 1-0
2023.04.25 Titled Tue 25th Apr Early
972853 Kukhmazov, A (2506) Koellner, Ruben Gideon (2421) 1/2-1/2
1. d4 d6 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 O-O 6. Nc3 Nbd7 7. O-O e5 8. h3 Re8 9. e4 c6 10. Be3 a6 11. Qc2 b5 12. c5 dxc5 13. dxe5 Nxe5 14. Nxe5 Rxe5 15. f4 Re8 16. Bxc5 Be6 17. Rad1 Qa5 18. b4 Qa3 19. e5 Nd5 20. Nxd5 cxd5 21. Rd3 Qa4 22. Qxa4 bxa4 23. Bxd5 Bxh3 24. Rfd1 Rab8 25. Bc6 Rec8 26. Bxa4 Bf8 27. Bxf8 Kxf8 28. a3 Bf5 29. Re3 a5 30. Rd4 axb4 31. axb4 Rc1+ 32. Kf2 Rb1 33. Rb3 Rc1 34. Bd7 Rd8 35. Bxf5 Rxd4 36. Bd3 Ra1 37. Ke3 Rd8 38. b5 Rb8 39. Be4 Rb6 40. Bc6 Rc1 41. Rd3 Rcxc6 42. bxc6 Rxc6 43. g4 h6 44. Ra3 Kg7 45. Ra7 Kf8 46. f5 Rc3+ 47. Kd4 Rg3 48. e6 fxe6 49. fxe6 Rxg4+ 50. Ke5 Rg1 51. Kf6 Rf1+ 52. Kxg6 Re1 53. e7+ Rxe7 54. Ra8+ Re8 55. Rxe8+ Kxe8 56. Kxh6 1/2-1/2
2023.04.25 Titled Tue 25th Apr Early
973000 Kosakowski, Jakub (2479) Koellner, Ruben Gideon (2421) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. f3 Bd6 9. Be3 Ke7 10. Nh3 a6 11. Nf2 Nbd7 12. O-O-O b5 13. Nb1 c5 14. Rd2 Rhc8 15. Rhd1 Rc6 16. Nc3 c4 17. Ne2 Bc5 18. Bxc5+ Nxc5 19. Ng3 b4 20. Ne2 a5 21. f4 exf4 22. Nxf4 c3 23. Rd4 cxb2+ 24. Kxb2 e5 25. Nd5+ Ke6 26. R4d2 Ncxe4 27. Nxe4 Nxe4 28. Re2 Nc3 29. Nxc3 bxc3+ 30. Ka3 Rb8 31. Rd3 Rb4 32. h3 h5 33. g3 e4 34. Rd8 Rd6 35. Re8+ Kf5 36. Rf2+ Kg6 37. Re5 Rd2 38. Re6+ Kh7 39. Rf5 Rxc2 40. Rxh5+ Kg8 41. Re8+ Kf7 42. Rhe5 Re2 43. R8e7+ Kg6 44. R5e6+ Kh7 45. Rc6 c2 46. Rcc7 Re3+ 0-1
2023.04.25 Titled Tue 25th Apr Early
973167 Koellner, Ruben Gideon (2421) Galchenko, Matvey (2442) 0-1
1. d4 Nf6 2. Nf3 c5 3. e3 g6 4. Nbd2 cxd4 5. exd4 Bg7 6. c3 O-O 7. Bd3 d6 8. O-O Nc6 9. Re1 e5 10. dxe5 dxe5 11. Ne4 Qc7 12. Nxf6+ Bxf6 13. Bh6 Re8 14. Bc4 Be6 15. Bxe6 Rxe6 16. Qb3 Rae8 17. Ng5 Bxg5 18. Bxg5 Kg7 19. Rad1 f6 20. Be3 R6e7 21. Bc5 Rd7 22. Rxd7+ Qxd7 23. Rd1 Qc7 24. Qb5 a6 25. Qb3 h5 26. Bb6 Qf7 27. Qa3 h4 28. h3 e4 29. Qd6 Ne5 30. Bd4 Nd3 31. b3 Re6 32. Qb8 g5 33. Qc8 Re7 34. Rd2 Qe6 35. Qxe6 Rxe6 36. f3 Nf4 37. fxe4 Rxe4 38. Kf2 Kg6 39. Be3 Nh5 40. c4 Ng3 41. Bd4 Re6 42. Rd3 Rd6 43. Rd1 f5 0-1
2023.04.25 Titled Tue 25th Apr Early
973313 Koellner, Ruben Gideon (2421) Tari, A (2640) 1-0
1. d4 Nf6 2. Nf3 b5 3. e3 a6 4. a4 b4 5. Nbd2 e6 6. Bd3 d5 7. e4 a5 8. c4 bxc3 9. bxc3 Ba6 10. Bxa6 Rxa6 11. e5 Nfd7 12. Ba3 Bxa3 13. Rxa3 O-O 14. O-O Qe7 15. Rb3 Rb6 16. Qc2 Nc6 17. Rfb1 Rfb8 18. g3 h6 19. h4 Rxb3 20. Rxb3 Rb6 21. Rb5 Qa3 22. Qb3 Qa1+ 23. Kg2 Na7 24. Rxb6 Nxb6 25. c4 Qxa4 26. cxd5 exd5 27. Qc3 Nb5 28. Qc6 Kf8 29. e6 fxe6 30. Qxe6 Nxd4 31. Qe5 Nxf3 32. Nxf3 Qd7 33. Nd4 Kg8 34. Nf5 Qf7 35. Ne7+ Kh8 36. Qxc7 Nc4 37. Qd8+ Kh7 38. Nxd5 Qb7 39. Kh2 a4 40. Ne7 1-0
2023.04.25 Titled Tue 25th Apr Early
973430 Gunina, V (2469) Koellner, Ruben Gideon (2421) 0-1
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. h3 Ne4 6. Qb3 Nxc3 7. bxc3 b6 8. c5 bxc5 9. e4 Bxe4 10. Ng5 d5 11. Nxe4 dxe4 12. Bb5+ c6 13. Ba4 Qb6 14. dxc5 Qxb3 15. axb3 Bg7 16. Bd2 a5 17. O-O-O Ra6 18. Kc2 Nd7 19. Be3 Ne5 20. Bd4 O-O 21. Rhe1 f5 22. Re2 Nd3 23. g3 e5 24. Be3 Re8 25. h4 Bf8 26. h5 Bxc5 27. hxg6 hxg6 28. f3 exf3 29. Red2 e4 30. Bxc5 Nxc5 31. Rh1 e3 32. Rdh2 Kg7 33. Rh7+ Kf6 34. Rc7 Nxa4 35. bxa4 e2 0-1
2023.04.25 Titled Tue 25th Apr Late
973572 Koellner, Ruben Gideon (2421) Bryant, T (2075) 1/2-1/2
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 a5 6. b5 O-O 7. c4 c5 8. dxc5 Ne4 9. Nxe4 Bxa1 10. cxd5 Bf5 11. Ng3 Nd7 12. Nxf5 gxf5 13. Qc2 Nxc5 14. Qxf5 Bg7 15. Ng5 Re8 16. Qxh7+ Kf8 17. Qh5 Kg8 18. Qxf7+ Kh8 19. Bb2 e5 20. Qh5+ Kg8 21. Bd3 Nxd3+ 22. Ke2 Nxb2 23. Qf7+ Kh8 24. Qh5+ Kg8 25. Qf7+ Kh8 26. Qh5+ Kg8 1/2-1/2
2023.04.25 Titled Tue 25th Apr Late
973782 Eidelman, Gabriel (2209) Koellner, Ruben Gideon (2421) 0-1
1. e4 d6 2. Nc3 Nf6 3. d4 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. O-O-O+ Nd7 8. Nf3 Bd6 9. Bxf6+ gxf6 10. Nh4 Nb6 11. Nd5 Nxd5 12. exd5 Bd7 13. Bd3 Bc5 14. f3 h6 15. g4 h5 16. h3 a6 17. Kd2 c6 18. dxc6 Bxc6 19. Be4 Bxe4 20. fxe4 Kc7 21. Rdf1 Rag8 22. Rxf6 hxg4 23. Rxf7+ Kb8 24. Nf5 gxh3 25. Rg7 Rxg7 26. Nxg7 h2 27. Nf5 Bg1 28. Ke2 Rf8 29. Kf3 Rd8 30. Ke2 Rg8 31. Kf3 Kc7 32. Ng3 Rf8+ 33. Nf5 a5 34. Ke2 a4 35. a3 b5 36. Kd3 Rg8 37. Kc3 Rg2 38. Nh4 Rg3+ 39. Kb4 Kb6 40. Nf5 Bc5# 0-1
2023.04.25 Titled Tue 25th Apr Late
974040 Koellner, Ruben Gideon (2421) Chigaev, M (2617) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 O-O 5. Bc4 c5 6. d5 d6 7. O-O Na6 8. a4 Nc7 9. Qe2 b6 10. Nb1 a6 11. Nc3 Bg4 12. h3 Bxf3 13. Qxf3 Nd7 14. Qe2 Qb8 15. Bg5 Re8 16. f4 e6 17. Qd3 Kh8 18. Rad1 b5 19. axb5 Nb6 20. Bb3 exd5 21. Nxd5 Nbxd5 22. Bxd5 Nxd5 23. Qxd5 Qxb5 24. Qxf7 Qc6 25. Bf6 Rg8 26. Rd5 Qe8 27. Bxg7+ Rxg7 28. Qf6 Qxe4 29. Rxd6 Kg8 30. Re6 Qxc2 31. Qe5 Rf8 32. Re8 Rf7 33. Rxf8+ Rxf8 34. Qd5+ Kg7 35. Qe5+ Kg8 36. Rf2 Qd1+ 37. Kh2 Qd4 38. Qxd4 cxd4 39. g3 Kf7 40. Rd2 Rd8 41. Kg2 Ke6 42. Kf3 Kd5 43. Ke2 Kc4 44. Rc2+ Kb3 45. Kd3 Re8 46. Rg2 Re1 47. Kxd4 Rb1 48. g4 a5 49. f5 gxf5 50. gxf5 Rh1 51. f6 Rf1 52. Ke5 Rf3 53. Ke6 a4 54. f7 Re3+ 55. Kd7 Rf3 56. Ke8 Re3+ 57. Kd7 Rf3 58. Ke7 Re3+ 59. Kf6 Rf3+ 60. Kg7 h5 61. f8=Q 1-0
2023.04.25 Titled Tue 25th Apr Late
974164 Kamsky, G (2665) Koellner, Ruben Gideon (2421) 1-0
1. d4 d6 2. Nf3 Nf6 3. Bg5 Nbd7 4. Nbd2 e5 5. c3 Be7 6. dxe5 Nxe5 7. Nxe5 dxe5 8. Nc4 Qxd1+ 9. Rxd1 Nd7 10. h4 h6 11. Bc1 b6 12. e4 Bb7 13. f3 O-O-O 14. b4 Bc6 15. Ne3 Nf8 16. Nf5 Rxd1+ 17. Kxd1 Bf6 18. Bc4 Ne6 19. h5 Rd8+ 20. Kc2 Ba4+ 21. Kb1 Kb7 22. Be3 a6 23. Bd5+ c6 24. Bb3 Bxb3 25. axb3 Nc7 26. Kc2 Ne8 27. g3 Nd6 28. Nxd6+ Rxd6 29. f4 Rd7 30. Rf1 Re7 31. Kd3 Rd7+ 32. Kc2 Re7 33. f5 Rd7 34. g4 Be7 35. f6 Bxf6 36. Bxh6 c5 37. bxc5 bxc5 38. Be3 Kc6 39. g5 Bd8 40. h6 gxh6 41. gxh6 f6 42. Rh1 Rh7 43. Kd3 Kb5 44. Rg1 1-0
2023.04.25 Titled Tue 25th Apr Late
974283 Koellner, Ruben Gideon (2421) Marin, Sebastian (2269) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 Ne5 11. Nxe5 Bxe5 12. Nf3 Bd6 13. a3 e5 14. Be2 Be6 15. c4 dxc4 16. Nxe5 Qc7 17. Nxc4 Bxc4 18. Bxc4 Bxh2+ 19. Kh1 Qxc4 20. Bxf6 Bb8 21. Qd4 Qc7 22. f4 gxf6 23. Qxf6 Qd6 24. Qh4 f5 25. Rf3 Bc7 0-1
2023.04.25 Titled Tue 25th Apr Late
974473 Kubatko, I (2257) Koellner, Ruben Gideon (2421) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. g3 c6 6. Bg2 b5 7. a3 a5 8. O-O Ba6 9. Re1 Be7 10. h3 O-O 11. Nh4 g6 12. Bh6 Re8 13. Qd2 Qc7 14. Rad1 b4 15. axb4 axb4 16. Nb1 c5 17. c3 b3 18. f4 Nh5 19. Qf2 Nb6 20. d5 Nc4 21. f5 Bb5 22. Bc1 Ra2 23. Nf3 Bd8 24. Bf1 Qb6 25. Bd3 Qa5 26. Nh2 Bb6 27. Ng4 Nxb2 28. Bxb2 Bxd3 29. Rxd3 c4 30. Rde3 1-0
2023.04.19 Mitropa Cup 2023
976689 Koellner, Ruben Gideon (2421) Baenziger, Fabian (2409) 1/2-1/2
1. d4 Nf6 2. Bg5 d5 3. e3 c5 4. Bxf6 gxf6 5. dxc5 e6 6. c4 dxc4 7. Nd2 c3 8. bxc3 Nd7 9. c6 bxc6 10. Ngf3 Be7 11. Qc2 Qc7 12. Be2 Bb7 13. Rb1 c5 14. O-O Kf8 15. Bd3 Kg7 16. Qa4 f5 17. e4 c4 18. Qxc4 Qxc4 19. Bxc4 Bxe4 20. Nxe4 fxe4 21. Nd2 Nc5 22. Rfe1 Rab8 23. Rxb8 Rxb8 24. Nxe4 Nxe4 25. Rxe4 Bf6 1/2-1/2
2023.04.18 Mitropa Cup 2023
976653 Lagarde, Max (2579) Koellner, Ruben Gideon (2421) 1-0
1. Nf3 d5 2. g3 Nd7 3. d4 Nb6 4. Nc3 Bf5 5. Nh4 Bg4 6. h3 Bh5 7. Ng2 Nf6 8. Nf4 Bg6 9. Bg2 e6 10. Nxg6 hxg6 11. Qd3 c5 12. e4 c4 13. Qe2 Bb4 14. e5 Ne4 15. Bxe4 dxe4 16. Qxe4 Qd5 17. Qxd5 Nxd5 18. Bd2 Bxc3 19. Bxc3 b5 20. Ba5 Kd7 21. c3 g5 22. Ke2 Kc6 23. Kf3 Rh5 24. a4 Rah8 25. axb5+ Kxb5 26. Bb4 Nxb4 27. cxb4 Ra8 28. Rhc1 Kxb4 29. Ra6 Rxh3 30. Rc6 Kb3 31. Rc7 Kxb2 32. R1xc4 a5 33. Rb7+ Ka3 34. Rxf7 Rh1 35. Rc6 Rb1 36. Rxe6 Rb4 37. d5 Kb3 38. d6 a4 39. d7 Rbb8 40. Rd6 a3 41. e6 a2 42. Rd1 Rd8 43. Rxg7 Ra3 44. Kg2 a1=Q 45. Rxa1 Rxa1 46. e7 Rxd7 47. e8=Q Rxg7 48. Qb5+ Ka2 49. Qa4+ Kb1 50. Qb3+ 1-0
2023.04.18 Titled Tue 18th Apr Late
979689 Koellner, Ruben Gideon (2421) Peatman, Carter (1998) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 Nc6 5. Bd2 Bg4 6. Be2 e6 7. h3 Bh5 8. c4 cxd4 9. Nxd4 Bg6 10. cxd5 Nxd5 11. Nxc6 bxc6 12. Nc3 Bd6 13. O-O O-O 14. Qa4 Nb4 15. a3 Bc2 16. b3 Nd5 17. Rfc1 Bg6 18. Qxc6 Rc8 19. Qa6 Be5 20. Nxd5 Rxc1+ 21. Rxc1 Qxd5 22. Bb4 Rd8 23. Rc8 h5 24. Rxd8+ Qxd8 25. Qxa7 Qh4 26. Qc5 Qe4 27. Qc1 Qb7 28. Bf3 Qb5 29. Qc8+ Kh7 30. Qc5 Qb8 31. Bc3 Bd6 32. Qd4 Bf8 33. b4 f6 34. Be4 e5 35. Bxg6+ Kxg6 36. Qd3+ Kh6 37. e4 Qc7 38. Bd2+ Kh7 39. g3 g6 40. Kg2 Be7 41. h4 Qb7 42. f3 Qa7 43. Be3 Qc7 44. b5 Bxa3 45. Qxa3 Qc2+ 46. Bf2 Qb3 47. Qxb3 1-0
2023.04.18 Titled Tue 18th Apr Late
979791 Esmeraldas Huachi, Anderson (2141) Koellner, Ruben Gideon (2421) 0-1
1. d4 d6 2. e4 Nf6 3. Bd3 e5 4. Ne2 Nbd7 5. O-O exd4 6. Nxd4 Be7 7. f4 O-O 8. Kh1 Re8 9. Nc3 Bf8 10. Qf3 a6 11. a3 Rb8 12. b4 c5 13. Nf5 b5 14. Re1 c4 15. Bf1 Bb7 16. g4 Nxe4 17. Nxe4 Nf6 18. Nfg3 Nxe4 19. Nxe4 d5 20. Ng3 Rxe1 21. Qf2 d4+ 22. Kg1 Qe7 23. f5 Re8 24. Qe2 Rxe2 0-1
2023.04.18 Titled Tue 18th Apr Late
979976 Koellner, Ruben Gideon (2421) Vargas, M (2056) 1-0
1. d4 d5 2. Nf3 Bg4 3. e3 e6 4. Nbd2 Bd6 5. h3 Bh5 6. g4 Bg6 7. Ne5 Nd7 8. f4 Ngf6 9. h4 Be4 10. Nxe4 Nxe4 11. Bd3 f5 12. gxf5 Ndf6 13. Bxe4 Nxe4 14. Qh5+ g6 15. fxg6 Bxe5 16. g7+ Kd7 17. gxh8=Q Bxh8 18. Rg1 Kc6 19. Bd2 b6 20. Qxh7 Kb7 21. O-O-O Qe8 22. Kb1 a5 23. Qg6 a4 24. Qxe8 Rxe8 25. h5 Nf2 26. Rdf1 Ne4 27. Be1 c5 28. c3 cxd4 29. exd4 Rf8 30. h6 1-0
2023.04.18 Titled Tue 18th Apr Late
980228 Flores, Di (2517) Koellner, Ruben Gideon (2421) 1/2-1/2
1. c4 d6 2. Nc3 e5 3. g3 Nf6 4. Bg2 Be7 5. e4 Be6 6. d3 c6 7. Nge2 d5 8. exd5 cxd5 9. Bg5 d4 10. Bxf6 Bxf6 11. Nd5 Nd7 12. O-O O-O 13. f4 exf4 14. Nexf4 Be5 15. Qe2 Rb8 16. Rae1 b5 17. b3 bxc4 18. bxc4 Kh8 19. Be4 Bxd5 20. Nxd5 g6 21. Bg2 f5 22. Qf2 Re8 23. Re2 Bg7 24. Rxe8+ Qxe8 25. Re1 Qf8 26. h4 Ne5 27. Qe2 Qd6 28. Nf4 Ng4 29. Qe7 Qxe7 30. Rxe7 Be5 31. Bd5 Rb1+ 32. Kg2 Rb2+ 33. Kf1 Bxf4 34. gxf4 Ne3+ 35. Kg1 Rxa2 36. Be6 Rc2 37. Rxa7 Rc1+ 38. Kf2 Rc2+ 39. Kf3 Ng4 40. h5 gxh5 41. Bxf5 Nf6 42. Rf7 Ng4 43. Rxh7+ Kg8 44. Rxh5 Ne3 45. Be6+ Kg7 46. Ra5 Kf6 47. f5 Rc3 48. Ke4 Nc2 49. Ra6 Rb3 50. Bd5+ Kg5 51. f6 Rb1 52. Bg8 Re1+ 53. Kd5 Rf1 54. Ra5 Rf5+ 55. Ke6 Rxa5 56. f7 Rf5 57. Ke7 Nb4 58. f8=Q Rxf8 59. Kxf8 Nxd3 60. Bh7 Ne5 61. Ke7 Nxc4 62. Ke6 Nb2 63. Kd5 d3 64. Bxd3 1/2-1/2
2023.04.18 Titled Tue 18th Apr Late
980324 Koellner, Ruben Gideon (2421) Beerdsen, Thomas (2523) 0-1
1. d4 Nf6 2. Nf3 a6 3. Nbd2 b5 4. e4 Bb7 5. Bd3 c5 6. c3 cxd4 7. cxd4 g6 8. O-O Bg7 9. a3 O-O 10. b4 d5 11. e5 Ne4 12. Nb3 Nd7 13. Nc5 Bc6 14. Re1 a5 15. Bb2 Ndxc5 16. dxc5 f5 17. Nd4 Qd7 18. f3 Ng5 19. e6 Qc7 20. h4 Nh3+ 21. Kf1 Qh2 22. Qd2 Nf4 23. Kf2 Qxh4+ 24. Kg1 Bxd4+ 25. Bxd4 Nxg2 26. Kxg2 Qxd4 27. Rab1 axb4 28. axb4 Ra3 29. Red1 Rfa8 30. Be2 Qf6 31. Kf2 Ra2 32. Qf4 Rc2 33. Rd2 Raa2 34. Rxc2 Rxc2 35. Rh1 h5 36. Rg1 Kg7 37. Rd1 Qb2 38. Qd4+ Qxd4+ 39. Rxd4 Kf6 40. f4 h4 41. Rd3 g5 42. fxg5+ Kxg5 43. Rd1 Kf6 44. Rg1 d4 45. Ke1 Rc1+ 46. Kf2 Rxg1 47. Kxg1 Kxe6 48. Kf2 Ke5 49. Ke1 h3 50. Kf2 h2 51. Bf3 Bxf3 52. Kxf3 h1=Q+ 53. Kg3 Qe4 54. Kf2 d3 55. c6 d2 56. c7 d1=Q 57. c8=Q Qde1# 0-1
2023.04.17 Mitropa Cup 2023
976649 Palac, M (2489) Koellner, Ruben Gideon (2421) 0-1
1. d4 d5 2. c4 e6 3. Nc3 Be7 4. cxd5 exd5 5. Bf4 c6 6. e3 Bf5 7. Nge2 Qb6 8. Qd2 Nf6 9. Ng3 Bg6 10. h4 h5 11. Bd3 Bxd3 12. Qxd3 g6 13. O-O-O Qa6 14. Qc2 Nbd7 15. Kb1 O-O 16. f3 b5 17. Bg5 Rfe8 18. Nce2 Bf8 19. Nf4 Bg7 20. Nd3 Rac8 21. Nf1 Qb6 22. Rc1 a5 23. Nd2 a4 24. Rhe1 Qa7 25. a3 Nb6 26. g4 hxg4 27. Bxf6 Bxf6 28. h5 Nc4 29. Nxc4 bxc4 30. Nc5 Kg7 31. hxg6 fxg6 32. Rg1 Qf7 33. Rxg4 g5 34. e4 Qg6 35. e5 Be7 36. f4 Qxc2+ 37. Rxc2 Kg6 38. Rg1 Kf5 39. Nxa4 gxf4 40. Rg7 Ke4 41. Rd2 Ke3 42. Kc2 Rb8 43. Kc1 Rb3 44. Nc3 Rxc3+ 45. bxc3 Bxa3+ 46. Kd1 Rb8 47. Re2+ Kd3 48. Rd2+ Kxc3 49. Ra2 Kb3 50. Rf2 c3 51. Rc7 c5 52. dxc5 d4 53. Rd7 Rh8 54. Rb7+ Kc4 55. c6 d3 56. Rxf4+ Kc5 57. Rf1 Rh2 0-1
2023.04.16 Mitropa Cup 2023
981883 Koellner, Ruben Gideon (2421) Kozak, Adam (2568) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. b4 Bg7 5. Bb2 O-O 6. e3 Bf5 7. c4 a5 8. b5 a4 9. Ba3 c6 10. cxd5 cxb5 11. Qc1 Na6 12. Qb2 b4 13. Bxb4 Nxb4 14. Qxb4 Nxd5 15. Qb2 Qa5 16. Bc4 Nb4 17. O-O b5 18. e4 bxc4 19. Nxc4 Qc7 20. Qxb4 Bxe4 21. Nfe5 Rfd8 22. Rfd1 Qb7 23. Qa3 Qa7 24. Qc5 Rdc8 25. Qxa7 Rxa7 26. f3 Bb7 27. Nb6 Rd8 28. Rab1 a3 29. f4 Be4 30. Rb4 Rc7 31. d5 f5 32. Rd2 g5 33. g3 gxf4 34. gxf4 Bh6 35. Rf2 Rc1+ 36. Rf1 Bxf4 37. Rxc1 Bxc1 38. Nc6 Re8 39. Kf2 Bf4 40. Ra4 Bd6 41. Ra5 Bc7 42. Rb5 Bxh2 43. Nc4 Bd3 44. Rc5 Bxc4 45. Rxc4 Bd6 46. Kf3 Kf7 47. Rh4 Kg6 48. Rh1 h5 49. Rg1+ Kf6 50. Re1 e5 51. dxe6 Rxe6 52. Rc1 h4 53. Nd4 Re4 54. Nb5 Bf4 55. Rc8 h3 56. Rh8 h2 57. Nc3 Re1 58. Nd5+ Kg7 59. Rh5 Bb8 0-1
2023.04.15 Mitropa Cup 2023
981871 Moroni, L (2565) Koellner, Ruben Gideon (2421) 1/2-1/2
1. c4 e6 2. Nf3 d5 3. e3 Nf6 4. b3 c5 5. Bb2 Nc6 6. cxd5 exd5 7. d4 Bg4 8. Be2 Bxf3 9. Bxf3 cxd4 10. exd4 Bb4+ 11. Kf1 O-O 12. a3 Ba5 13. Nc3 Re8 14. b4 Bb6 15. Na4 Ne4 16. g3 Ng5 17. Bg2 Ne6 18. Nc5 Qf6 19. Qd2 Nexd4 20. Rd1 Bxc5 21. bxc5 Nf3 22. Bxf6 Nxd2+ 23. Rxd2 gxf6 24. Bxd5 Rad8 25. Kg2 Ne7 26. Rhd1 Nxd5 27. Rxd5 Rxd5 28. Rxd5 Rc8 29. Kf3 b6 30. Ke4 bxc5 31. Kd3 Rc6 32. Kc4 Ra6 33. Rd3 Ra5 34. Rf3 Kg7 35. Kb3 Rb5+ 36. Kc4 Ra5 37. h3 h5 38. Kb3 Rb5+ 39. Kc4 Ra5 40. h4 Kg6 41. Re3 f5 42. f4 Kf6 43. Kd5 Kg6 44. Rb3 Kg7 45. Kc4 Kg6 46. Rc3 f6 47. Rb3 Kf7 48. Re3 a6 49. Kd5 Rb5 50. Rc3 Ra5 51. Rb3 Kg6 52. Re3 Kf7 53. Rc3 Kg6 54. Rb3 Kf7 55. Re3 Rb5 56. Kc4 Ra5 57. Kb3 Rb5+ 58. Ka4 Rb6 59. Rc3 Rb5 60. Re3 1/2-1/2
2023.04.14 Mitropa Cup 2023
981847 Koellner, Ruben Gideon (2421) Dotzer, Lukas (2416) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. c4 c5 6. dxc5 Nbd7 7. Nb3 Nxc5 8. Nxc5 Qa5+ 9. Bd2 Qxc5 10. b4 Qc7 11. Rc1 O-O 12. Qb3 Qd8 13. Bc3 Be6 14. Ng5 dxc4 15. Qb2 b5 16. Nxe6 fxe6 17. Be2 Ne8 18. h4 Bxc3+ 19. Qxc3 Nf6 20. Bf3 Rb8 21. h5 Qc7 22. Rh3 Kf7 23. Rg3 Rbd8 24. Rg5 Nd5 25. hxg6+ hxg6 26. Qc2 Rg8 27. Be4 Nxb4 28. Qb1 Qh2 29. Ke2 Qh4 30. Bxg6+ Kf6 31. Rg3 Nd3 32. Rh1 Qxg3 33. fxg3 Rxg6 34. Qxb5 Rxg3 35. Rh6+ Kg7 36. Qh5 Rxg2+ 37. Kf1 Rf2+ 38. Kg1 Rg8 39. Rg6+ Kf8 40. Qh6+ Kf7 41. Qh7+ Ke8 42. Rxg8+ Kd7 43. Qxd3+ cxd3 44. Kxf2 e5 45. e4 1-0
2023.04.13 Mitropa Cup 2023
981827 Sebenik, M (2523) Koellner, Ruben Gideon (2421) 1/2-1/2
1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qc2 Nbd7 9. Bf4 b6 10. cxd5 cxd5 11. Bc7 Qe8 12. Rc1 Ba6 13. Nc3 Rc8 14. Bf4 Ne4 15. Qa4 Nb8 16. Bxb8 Qxa4 17. Nxa4 Rxb8 18. e3 Rfc8 19. Bf1 Bxf1 20. Kxf1 b5 21. Nc3 Nxc3 22. Rxc3 Rxc3 23. bxc3 Rc8 1/2-1/2
2023.04.12 Mitropa Cup 2023
981811 Koellner, Ruben Gideon (2421) Sahidi, Samir (2508) 0-1
1. d4 e6 2. Nf3 Nf6 3. Nbd2 c5 4. e3 b6 5. b3 Bb7 6. Bb2 cxd4 7. exd4 Be7 8. Bd3 O-O 9. O-O d5 10. Qe2 Nc6 11. a3 Nd7 12. Rfe1 Rc8 13. Qe3 Re8 14. Qf4 Qc7 15. Qg4 Bf6 16. Re3 g6 17. Rae1 Bg7 18. Qh4 Qd8 19. Qg3 Nf6 20. Qh3 Nh5 21. g3 Nb8 22. Ne5 Ba6 23. Bxa6 Nxa6 24. c3 Nb8 25. f4 Nc6 26. Ndf3 f5 27. Nd3 Qd7 28. Ng5 Nd8 29. g4 fxg4 30. Qxg4 Bf6 31. f5 Bxg5 32. Qxg5 Nf7 33. fxe6 Rxe6 34. Qg4 Re7 35. Qxd7 Rxd7 36. Re8+ Rxe8 37. Rxe8+ Kg7 38. c4 Nd6 39. Re6 dxc4 40. d5+ c3 41. Bxc3+ Kg8 42. Ne5 Rd8 43. Nc6 Rd7 44. Ne7+ Kf7 45. Nc6 Kg8 46. Ne5 Rd8 47. Re7 Nf5 48. Rxa7 Nf4 49. Ng4 Nxd5 50. Ba1 Rc8 51. Kg2 h5 52. Nf6+ Nxf6 53. Bxf6 Rc2+ 54. Kg1 h4 55. h3 Rc6 56. Bb2 Rd6 57. Be5 Rd3 58. Rb7 Rxb3 59. a4 Rxh3 60. Rxb6 Kh7 61. Kf2 Ra3 62. Bf6 Rxa4 63. Bg5 Rg4 64. Rb7+ Kg8 65. Bc1 g5 66. Rb5 Nd6 67. Rb3 Ne4+ 68. Kf1 Kf7 69. Rb6 Nf6 70. Bb2 Nd5 71. Rb5 Ke6 72. Rb3 Rc4 73. Rb8 Kf5 74. Rf8+ Kg4 75. Be5 Nf4 0-1
2023.04.11 Mitropa Cup 2023
981783 Vykouk, Jan (2462) Koellner, Ruben Gideon (2421) 1/2-1/2
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nbd2 d6 6. c3 O-O 7. O-O a5 8. h3 h6 9. Re1 Be6 10. Bb5 Nd7 11. Nf1 f5 12. exf5 Bxf5 13. Ng3 Bg6 14. d4 exd4 15. cxd4 Bb6 16. Bd3 Bxd3 17. Qxd3 Qf6 18. Be3 Nb4 19. Qb1 Rae8 20. a3 Nd5 21. Qa2 c6 22. Qc4 Kh8 23. Qd3 Nxe3 24. Rxe3 Qf7 25. Rae1 Rxe3 26. Qxe3 Ne5 27. Nh4 Nc4 28. Qe7 Kg8 29. Nhf5 Qxe7 30. Rxe7 Rf7 31. Re2 Kh7 32. a4 g6 33. Ne3 d5 34. b3 Nd6 35. Rd2 h5 36. f3 Kg7 37. Ne2 Bd8 38. Rd3 Bb6 39. g4 hxg4 40. hxg4 Bd8 41. Kg2 Ne8 42. Nc2 Nc7 43. Re3 Re7 44. Rxe7+ Bxe7 45. f4 Ne8 46. Kf3 Nd6 47. Nc3 Ne8 48. Nd1 Nd6 49. Nc3 Ne8 50. Nd1 1/2-1/2
2023.04.02 Bundesliga 2022-23
1001962 Halvax, G (2432) Koellner, Ruben Gideon (2403) 1/2-1/2
1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bf4 O-O 6. e3 b6 7. cxd5 Nxd5 8. Nxd5 Qxd5 9. a3 c5 10. dxc5 Bb7 11. Qxd5 Bxd5 12. Bd3 Nd7 13. Bd6 Bxd6 14. cxd6 Nc5 15. Bc2 Rfd8 16. Rd1 Rac8 17. O-O Nb7 18. e4 Rxc2 19. exd5 exd5 20. Rd3 d4 21. Rxd4 Rxd6 22. Rxd6 Nxd6 23. Rd1 g6 24. h4 Ne4 25. Rd8+ Kg7 26. Rd7 Rxb2 27. Rxa7 Nxf2 28. Ne5 Kf6 29. Nc4 Rc2 30. Ne3 Rb2 31. Rb7 1/2-1/2
2023.04.01 Bundesliga 2022-23
1001898 Koellner, Ruben Gideon (2403) Hoenig, A (2214) 1-0
1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 cxd4 6. exd4 Qb6 7. Nb3 Bg4 8. h3 Bxf3 9. Qxf3 e6 10. c3 a5 11. Rb1 Be7 12. Bd3 O-O 13. Nd2 Rfc8 14. a4 Na7 15. Qe2 Qd8 16. O-O Qe8 17. Ra1 Nd7 18. Bh2 Nb6 19. Bc2 Nc4 20. Nxc4 Rxc4 21. f4 g6 22. f5 Rc6 23. f6 Bd6 24. Rae1 Bxh2+ 25. Kxh2 b5 26. Qd2 b4 27. Rf4 bxc3 28. bxc3 Qf8 29. Rh4 Nc8 30. Re5 Nd6 31. Reh5 Nf5 32. Bxf5 exf5 33. Rxh7 Qd6+ 34. Kg1 Qxf6 35. Qh6 1-0
2023.03.28 Titled Tue 28th Mar Early
998083 Szmyd, A (2059) Koellner, Ruben Gideon (2424) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. Qe2 h6 8. dxe5 dxe5 9. Rd1 Qc7 10. h3 Nf8 11. a4 g5 12. Nh2 Ng6 13. Nf1 Nf4 14. Qe3 Be6 15. Be2 h5 16. Ng3 h4 17. Nf5 Kf8 18. b3 Bxf5 19. exf5 N6d5 20. Nxd5 cxd5 21. c4 d4 22. Qe4 Bf6 23. Bxf4 exf4 24. Bf3 Rb8 25. Ra2 Kg7 26. Re2 Qb6 27. Qd3 Rhe8 28. Rde1 Rxe2 29. Rxe2 Rd8 30. Bd5 Qb4 31. Re4 Qc3 32. Qxc3 dxc3 33. Re2 b6 34. Kf1 a6 35. Ke1 b5 36. axb5 axb5 37. Kd1 bxc4 38. bxc4 Rb8 39. Rc2 Bd4 40. Ke2 Kf6 41. f3 Rb1 42. Kd3 Rd1+ 43. Ke2 Rg1 44. Kd3 Be5 45. c5 Rb1 46. c6 Rb4 47. Be4 Rb5 48. Rxc3 Bxc3 49. Kxc3 Rc5+ 50. Kd4 Rc1 51. Kd5 Ke7 52. f6+ Kxf6 53. Kd6 Rd1+ 54. Kc7 Ke6 55. Kb7 Rc1 56. c7 Rxc7+ 57. Kxc7 f5 58. Bb7 Ke5 59. Kd7 Kd4 60. Ke6 Ke3 61. Kxf5 Kf2 62. Kxg5 Kg3 63. Bc6 Kxg2 64. Kxh4 Kf2 65. Kg4 Ke3 66. h4 Kd4 67. Kxf4 Kc5 68. h5 Kd6 69. h6 Ke7 70. h7 Kf6 71. h8=Q+ Kf7 72. Qh6 Ke7 73. Ke5 Kd8 74. Qg7 Kc8 75. Qd7+ Kb8 76. Qb7# 1-0
2023.03.28 Titled Tue 28th Mar Early
998126 Koellner, Ruben Gideon (2424) Silvestre, Christian (1942) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 O-O 5. Bc4 e6 6. Bd3 d5 7. e5 Nfd7 8. c3 c5 9. h4 h5 10. Nf1 b6 11. Bg5 Qc7 12. Ne3 Ba6 13. g4 cxd4 14. cxd4 hxg4 15. Nxg4 Bxd3 16. Qxd3 Nc6 17. Rc1 Qb7 18. h5 Nb4 19. Qd2 Nxa2 20. Ra1 Qa6 21. h6 f6 22. hxg7 fxg5 23. gxf8=Q+ Rxf8 24. Qxg5 Qd3 25. Nf6+ Nxf6 26. exf6 Nb4 27. Rh8+ Kf7 28. Ne5+ 1-0
2023.03.28 Titled Tue 28th Mar Early
998480 Winkels, M (1949) Koellner, Ruben Gideon (2424) 0-1
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. a5 h6 8. O-O Qc7 9. h3 Nf8 10. Be3 g5 11. Nh2 Ng6 12. f3 Nf4 13. Ng4 h5 14. Nxf6+ Bxf6 15. Kh2 h4 16. Bxf4 gxf4 17. d5 Rg8 18. Qd2 Rg3 19. Rh1 Bd7 20. Ne2 Ke7 21. Nxg3 hxg3+ 22. Kg1 cxd5 23. Bxd5 Qc5+ 24. Kf1 Bb5+ 25. Ke1 Bh4 26. c4 Bxc4 27. Rc1 Qf2+ 28. Kd1 Bxd5 29. Qxf2 gxf2 30. exd5 Rg8 31. Rc7+ Kd8 32. Rxb7 Rxg2 33. Rf1 e4 34. Ke2 exf3+ 35. Kxf3 Rg1 36. Ke2 f3+ 0-1
2023.03.28 Titled Tue 28th Mar Early
998746 Iniyan, P (2515) Koellner, Ruben Gideon (2424) 1/2-1/2
1. c4 d6 2. Nc3 e5 3. d3 f5 4. g3 Nf6 5. Bg2 Be7 6. Nf3 O-O 7. O-O c6 8. b4 Be6 9. b5 Nbd7 10. Ng5 Nc5 11. bxc6 bxc6 12. Nxe6 Nxe6 13. Bxc6 Rc8 14. Bg2 Qc7 15. Nd5 Nxd5 16. Bxd5 Qd7 17. Rb1 Kh8 18. Rb7 Nc7 19. Rxa7 Qd8 20. Bg2 d5 21. cxd5 Nxd5 22. Bb2 Bf6 23. Qa4 Nc3 24. Bxc3 Rxc3 25. Qb4 Rc8 26. a4 Rb8 27. Rb7 Rxb7 28. Bxb7 Be7 29. Qb5 Qd4 30. a5 f4 31. a6 Bc5 32. gxf4 exf4 33. Qc4 Qe5 34. Qd5 Qe7 35. Rc1 Bxf2+ 36. Kf1 Be3 37. Rc8 Rxc8 38. Bxc8 Qh4 39. Qg2 g6 40. Be6 Qf6 41. Qd5 h5 42. Kg2 Kg7 43. Bh3 Kh6 44. Kf3 Qxa6 45. Qd8 Qa1 46. Qf8+ Kh7 47. Qf7+ Kh6 48. Qf8+ Kg5 49. Qe7+ Kh6 50. Qf8+ 1/2-1/2
2023.03.28 Titled Tue 28th Mar Early
998883 Koellner, Ruben Gideon (2424) Wagner, De (2586) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. c3 cxd4 5. exd4 Nc6 6. Nbd2 Bf5 7. Bb5 Rc8 8. Qa4 Bd7 9. Ne5 Nxe5 10. dxe5 Bxb5 11. Qxb5+ Qd7 12. Qb3 Ng4 13. Nf3 e6 14. h3 Nh6 15. Bxh6 gxh6 16. O-O Be7 17. Nd4 O-O 18. f4 Kh8 19. f5 Bc5 20. Rad1 exf5 21. Kh1 Rce8 22. Nxf5 Rxe5 23. Nxh6 Rh5 24. Rf6 Rxh3+ 25. gxh3 Qxh3# 0-1
2023.03.28 Titled Tue 28th Mar Early
999148 Koellner, Ruben Gideon (2424) Buscar, M (2041) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 b6 4. e4 d6 5. Bd3 Bb7 6. O-O Nbd7 7. c3 c5 8. a4 a6 9. Qe2 Be7 10. Rd1 cxd4 11. cxd4 O-O 12. Nf1 Rc8 13. Ng3 a5 14. Bd2 Qc7 15. h4 Qb8 16. h5 Qa8 17. h6 g6 18. Re1 Nb8 19. Bg5 Rfe8 20. e5 Bxf3 21. gxf3 dxe5 22. dxe5 Nd5 23. Bxe7 Rxe7 24. Qd2 Nc6 25. Qg5 Ncb4 26. Be4 Qa7 27. Nh5 Kf8 28. Nf6 Nxf6 29. Qxf6 Ke8 30. Red1 Nd5 31. Bxd5 exd5 32. Rxd5 Rec7 33. Rad1 Qa8 34. Qh8+ Ke7 35. Qxh7 Rc1 36. Rd7+ Ke6 37. Qxf7+ Kxe5 38. Rd5+ Qxd5 39. Qxd5+ Kf6 40. Kg2 R8c5 41. Qd4+ Kg5 42. Rxc1 1-0
2023.03.28 Titled Tue 28th Mar Early
999447 Cherniaiev, Tykhon (2330) Koellner, Ruben Gideon (2424) 1/2-1/2
1. Nf3 d6 2. d4 Nf6 3. Nbd2 Bf5 4. g3 Ne4 5. Bg2 Nxd2 6. Nxd2 c6 7. O-O Nd7 8. e4 Bg6 9. f4 f6 10. c3 e5 11. Qb3 Qb6 12. Qe6+ Be7 13. Nc4 Qc7 14. Qg4 O-O-O 15. Be3 Kb8 16. Rac1 Rhg8 17. Qe2 Rgf8 18. Rfd1 Bf7 19. a4 d5 20. Nd2 exd4 21. cxd4 dxe4 22. Nxe4 Nb6 23. f5 Nd5 24. Nc5 Bxc5 25. dxc5 Nxe3 26. Qxe3 Rfe8 27. Rxd8+ Qxd8 28. Qf4+ Qc7 29. Kf2 Qxf4+ 30. gxf4 a5 31. Rc3 Bh5 32. Bf3 Bxf3 33. Kxf3 Re1 34. Re3 Rf1+ 35. Kg3 Rg1+ 36. Kf3 Rb1 37. Re7 Rxb2 38. Rxg7 Rxh2 39. Rf7 Rh6 40. Kg4 Ka7 41. Re7 Ka6 42. Re6 Ka7 43. Kg3 Kb8 44. Re8+ Kc7 45. Re7+ Kc8 46. Rf7 Kb8 47. Kg4 Ka7 48. Re7 Rh1 49. Re6 Rg1+ 50. Kf3 Rf1+ 51. Kg4 h5+ 52. Kxh5 Rxf4 53. Rxf6 Rxa4 54. Re6 Rf4 55. f6 Ka6 56. Kg6 Kb5 57. Re7 Kxc5 58. Rxb7 a4 59. f7 a3 60. Rb3 a2 61. Ra3 Kb4 62. Rxa2 c5 63. Rb2+ Kc3 64. Rb6 Rxf7 65. Kxf7 c4 66. Ke6 Kd3 67. Kd5 c3 68. Rh6 c2 69. Rh3+ Kd2 70. Rh2+ Kd1 71. Rh1+ Kd2 72. Rh2+ Kd3 73. Rh1 Kd2 74. Rh2+ 1/2-1/2
2023.03.28 Titled Tue 28th Mar Early
999501 Koellner, Ruben Gideon (2424) Korchmar, V (2438) 1-0
1. d4 d5 2. Nf3 Nf6 3. Nbd2 Bg4 4. e3 e6 5. h3 Bh5 6. g4 Bg6 7. Ne5 Nfd7 8. Nxg6 hxg6 9. Bg2 c5 10. c4 cxd4 11. exd4 Nc6 12. cxd5 exd5 13. O-O Bd6 14. Re1+ Kf8 15. Nb1 Qf6 16. Be3 Re8 17. Nc3 Nb6 18. a4 a5 19. Qd3 Kg8 20. Qb5 Bc7 21. Nxd5 Nxd5 22. Qxd5 Nb4 23. Qxb7 Qd6 24. Rac1 Qh2+ 25. Kf1 Bd6 26. Rc8 Rxc8 27. Qxc8+ Kh7 28. Qb7 Re8 29. Qxf7 Re7 30. Qf3 Nc2 31. Re2 Nb4 32. Bf4 Rxe2 33. Bxh2 1-0
2023.03.28 Titled Tue 28th Mar Early
999827 Harshavardhan, G B (2436) Koellner, Ruben Gideon (2424) 1/2-1/2
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Nfd2 f5 5. e3 Nf6 6. Nc3 c5 7. d5 Be7 8. a3 O-O 9. b4 b6 10. Bb2 Nbd7 11. Be2 Ne5 12. h3 Bd7 13. Qc2 Rc8 14. f4 exf3 15. gxf3 Nh5 16. O-O-O f4 17. e4 Ng3 18. Rh2 Bf6 19. b5 Ra8 20. Kb1 a6 21. a4 axb5 22. axb5 Qc7 23. Bf1 Ra5 24. Ne2 Nxe2 25. Bxe2 Rfa8 26. Qb3 Qa7 27. Kc2 Ra2 28. Rb1 Be8 29. Kd1 Bh5 30. Rg2 Qd7 31. Rh2 Qf7 32. Rg2 Qd7 33. Rh2 Kh8 34. Kc1 Qd8 35. Rg2 Nd7 36. Bd1 Bxb2+ 37. Rxb2 Ra1+ 38. Rb1 Qf6 39. Qb2 Rxb1+ 40. Kxb1 Ne5 41. Nb3 Qh4 42. Qf2 Qf6 43. Qc2 Qh4 44. Qf2 Qxf2 45. Rxf2 Nxc4 46. Bc2 Ne5 47. Bd1 g6 48. Nc1 g5 49. Kb2 h6 50. Kb1 Ra5 51. Be2 Kg7 52. Na2 Kf6 53. Kb2 Ra7 54. Kb3 Ra5 55. Nc3 Ra1 56. Na4 Nd7 57. Bd3 Rh1 58. Bf1 Rg1 59. Kc2 Rg3 60. Bg2 Ke5 61. Nc3 Kf6 62. Ne2 Ne5 63. Nxg3 fxg3 64. Rf1 Ng6 65. Rg1 Ne5 66. Kd2 Bxf3 67. Ke3 Bxg2 68. Rxg2 h5 69. Rxg3 g4 70. hxg4 hxg4 71. Kf4 c4 72. Ra3 Ng6+ 73. Kxg4 Ke5 74. Kf3 Kd4 75. Ra8 Ne5+ 76. Ke2 c3 77. Rb8 Nc4 78. Rc8 c2 79. Rxc4+ Kxc4 80. Kd2 Kxb5 81. Kxc2 Kc4 82. e5 Kxd5 83. exd6 Kxd6 84. Kb3 Kc5 85. Kc3 Kb5 86. Kb3 Kc5 87. Kc3 Kb5 88. Kb3 Ka5 89. Ka3 b5 90. Kb3 b4 91. Kb2 Kb5 92. Kb3 Kc5 93. Kb2 Kc4 94. Kc2 b3+ 95. Kb2 Kb4 96. Kb1 Kc3 97. Kc1 Kc4 98. Kb2 Kb4 99. Kb1 Ka3 100. Ka1 Ka4 101. Kb2 Kb4 1/2-1/2
2023.03.28 Titled Tue 28th Mar Early
999994 Koellner, Ruben Gideon (2424) Hasangatin, R (2457) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Ne5 c5 5. g4 Be6 6. h3 Nc6 7. Bg2 Qb6 8. c3 Nxe5 9. dxe5 Nd7 10. f4 f5 11. Nd2 c4 12. Nf3 Nc5 13. Nd4 Nd3+ 14. Kd2 Nf2 15. Qe1 Nxh1 16. gxf5 Bxf5 17. Qxh1 Be4 18. Bxe4 dxe4 19. Qxe4 e6 20. Ke2 Bc5 21. Bd2 O-O-O 22. Rg1 g6 23. h4 Bxd4 24. exd4 Qc6 25. Qxc6+ bxc6 26. b4 Rhf8 27. a4 Rf5 28. Kf3 Rdf8 29. Ke4 Rh5 30. Rg4 Kb7 31. a5 Ka6 32. Be3 Kb5 33. Bf2 Ka4 34. Be1 Rhf5 35. Bd2 Kb3 36. Rg2 Kc2 37. Be1+ Kb3 38. Bd2 a6 39. Kf3 Kc2 40. Ke4 Kb3 41. Kf3 Rh5 42. Be1 Rg8 43. Ke4 h6 44. Ke3 Rf5 45. Ke4 g5 46. Bd2 g4 47. Be1 g3 48. Kf3 h5 49. Ke4 Rg4 50. Bd2 Rxh4 51. Rxg3 Rg4 52. Rh3 h4 53. Rh2 Rf8 54. Kf3 Rg3+ 55. Ke4 Rh8 56. f5 Rg4+ 57. Bf4 exf5+ 58. Kxf5 Rg1 59. e6 Rf8+ 60. Ke4 Rg4 61. e7 Re8 62. Kf5 Rxf4+ 63. Kxf4 Rxe7 64. Rh3 Kc2 65. Kf5 Kd2 66. Kf4 Re8 67. Rxh4 Kxc3 68. Rh6 Rc8 69. Ke4 Kxb4 70. Rh7 Rb8 71. Ra7 Kb3 72. Rxa6 Re8+ 73. Kf5 c3 74. Rxc6 c2 75. Rxc2 Kxc2 76. d5 Kc3 77. d6 Kc4 78. d7 Ra8 79. Ke6 Kb5 80. Ke7 Kxa5 81. d8=Q+ Rxd8 82. Kxd8 1/2-1/2
2023.03.28 Titled Tue 28th Mar Early
1000050 Koellner, Ruben Gideon (2424) Csonka, B (2494) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. c3 Qc7 5. Nbd2 Nbd7 6. Bd3 g6 7. O-O Bg7 8. e4 cxd4 9. cxd4 dxe4 10. Nxe4 Nxe4 11. Bxe4 O-O 12. Qb3 Nf6 13. Bd3 Be6 14. Qa3 Bd5 15. Be2 Ne4 16. Be3 Qd6 17. Qxd6 Nxd6 18. Rac1 Bxa2 19. Rc7 Rfe8 20. Ne5 Bd5 21. Ra1 a5 22. Rc5 e6 23. Rcxa5 Rac8 24. Bd3 f6 25. Nd7 Nc4 26. Bxc4 Rxc4 27. Nb6 Rb4 28. Nxd5 exd5 29. Rxd5 Rxb2 30. Rd7 f5 31. g3 Bf8 32. Ra7 Re7 33. Rd8 Kf7 34. d5 b5 35. Rxf8+ Kxf8 36. Bc5 Re2 37. d6 Rxa7 38. d7+ Kg7 39. d8=Q Ra1+ 40. Kg2 Raa2 41. Qd7+ Kg8 42. Qd8+ Kf7 43. Qd7+ Kg8 44. Qxb5 Rac2 45. Bd4 Re7 46. Qb3+ 1-0
2023.03.28 Titled Tue 28th Mar Late
1000161 Koellner, Ruben Gideon (2424) Bullen, Alex (2148) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. c3 cxd4 5. exd4 Nc6 6. Nbd2 Bg4 7. Bb5 e6 8. Qa4 Qc7 9. Ne5 Rc8 10. Qxa7 Bd6 11. Bxc6+ bxc6 12. Qxc7 Rxc7 13. Nxg4 Nxg4 14. Nf3 h6 15. Ke2 Kd7 16. Be3 Rb8 17. b4 Ra7 18. a4 Rba8 19. a5 e5 20. dxe5 Nxe3 21. Kxe3 Be7 22. Rhb1 c5 23. Kd3 cxb4 24. cxb4 Rc7 25. b5 Rac8 26. Rb3 Rc2 27. b6 Rxf2 28. b7 Rb8 29. a6 1-0
2023.03.28 Titled Tue 28th Mar Late
1000531 Koellner, Ruben Gideon (2424) Svane, Frederik (2577) 0-1
1. d4 g6 2. Nf3 Nf6 3. Nbd2 d6 4. e4 Bg7 5. Bc4 O-O 6. O-O Nc6 7. c3 a5 8. a4 Nd7 9. Bb3 e5 10. dxe5 Ndxe5 11. Nxe5 Nxe5 12. Nc4 Nd7 13. Be3 Qe7 14. Bc2 b6 15. Re1 Ba6 16. Bd3 Nc5 17. Bxc5 bxc5 18. Ne3 Bb7 19. Nd5 Qd8 20. Bc4 Rb8 21. Rb1 Bc6 22. Qc2 Qd7 23. b3 Rfe8 24. Rbd1 Bxd5 25. exd5 Rxe1+ 26. Rxe1 Re8 27. Rxe8+ Qxe8 28. Qe2 Qd8 29. Bb5 Be5 30. f4 Bxf4 31. Qe8+ Qxe8 32. Bxe8 Bd2 33. c4 Kg7 34. Kf2 f5 35. Kf3 Kf6 36. h3 h5 37. h4 f4 38. g3 fxg3 39. Kxg3 Be1+ 40. Kh3 Kf5 41. Bf7 g5 42. Bxh5 Bxh4 43. Be8 Be1 44. Bd7+ Kf4 45. Kg2 g4 46. Bc6 g3 47. Bb5 Bc3 48. Bc6 Be5 49. Bd7 Ke3 50. Bc6 Kd3 51. Bb5 Kc3 52. Kf3 Kxb3 53. Kg2 Kc3 54. Kf3 Kd3 55. Kg2 Ke4 56. Bc6 Kd4 57. Bb5 c6 58. dxc6 d5 59. cxd5 Kxd5 60. Kf3 Kd4 61. c7 Bxc7 62. Bc6 c4 63. Ke2 Kc3 64. Bd5 Kb4 65. Kd1 Kxa4 66. Kc2 Kb4 67. Kb2 Be5+ 68. Kc2 c3 69. Be4 Kc5 70. Bg2 Kd4 71. Kb3 Ke3 72. Bd5 Kf2 73. Kc2 g2 74. Bxg2 Kxg2 75. Kd3 Kf2 76. Kc2 Ke2 77. Kc1 Kd3 78. Kd1 c2+ 79. Kc1 Bf4+ 80. Kb2 c1=Q+ 81. Ka2 Qc2+ 82. Ka3 Bd6# 0-1
2023.03.28 Titled Tue 28th Mar Late
1000570 Jimenez, Joa (2195) Koellner, Ruben Gideon (2424) 0-1
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Ng5 f5 5. Nc3 Be7 6. h4 Nf6 7. e3 O-O 8. Qb3 c5 9. dxc5 dxc5 10. Bd2 h6 11. Nh3 Nc6 12. Nf4 Ne5 13. O-O-O Qb6 14. Ncd5 Qxb3 15. Nxe7+ Kf7 16. axb3 Kxe7 17. Bc3 Neg4 18. Ng6+ Kf7 19. Nxf8 Nxf2 20. Bxf6 gxf6 21. Be2 Kxf8 22. Rd8+ Ke7 23. Rhd1 Nxd1 24. Rxd1 Be6 25. Kd2 Rg8 26. Bf1 Rg3 27. Ke2 f4 28. exf4 Rxb3 29. Rc1 Rxb2+ 30. Ke3 f5 31. Be2 Rb3+ 32. Kf2 a6 33. Rg1 b5 34. Ra1 Bxc4 35. Bxc4 bxc4 36. Rxa6 c3 37. Ke3 Rb2 38. Ra3 Rxg2 39. Rxc3 Rg3+ 40. Kd2 Rxc3 41. Kxc3 Kd6 0-1
2023.03.28 Titled Tue 28th Mar Late
1000889 Albornoz Cabrera, Carlos Daniel (2583) Koellner, Ruben Gideon (2424) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. f3 Bd6 9. h4 Ke7 10. h5 h6 11. Be3 Nbd7 12. O-O-O a6 13. Nh3 b5 14. Nf2 Rhb8 15. g4 Nh7 16. Nh3 Rf8 17. Rdf1 Ndf6 18. g5 Nxh5 19. gxh6 gxh6 20. Bxh6 Ng3 21. Bxf8+ Rxf8 22. Rhg1 Nxf1 23. Rxf1 Rg8 24. Rg1 Rxg1+ 25. Nxg1 Ng5 26. Nce2 Bc5 27. Kd2 Kd6 28. Kd3 Bf2 29. b3 Kc5 30. a3 a5 31. c3 a4 32. b4+ Kd6 33. c4 c6 34. Kc3 Ke7 35. Kd3 Kf6 36. Kc3 Kg6 37. f4 Nxe4+ 38. Kd3 Nd6 39. cxb5 Nxb5 40. Nf3 exf4 41. Nxf4+ Kf5 42. Ne2 e5 43. Nd2 Nxa3 44. Nc3 Be1 45. Nde4 Nb5 46. Nxa4 Bxb4 47. Nb6 Ke6 48. Nc4 Nd6 49. Nexd6 Bxd6 50. Ke4 Bc7 51. Ne3 Kd6 52. Kd3 Kc5 53. Nd1 Kb4 54. Ne3 Bb8 55. Nc4 e4+ 56. Kd2 Kxc4 57. Ke3 c5 58. Kxe4 Kb3 59. Kd3 c4+ 60. Kd2 Kb2 61. Ke3 c3 62. Kd3 c2 63. Kc4 c1=Q+ 64. Kb4 Qc3+ 65. Kb5 Bh2 66. Ka4 Qb3+ 67. Ka5 Kc3 68. Ka6 Kc4 69. Ka7 Qb4 70. Ka8 Qb5 71. Ka7 Kc5 72. Ka8 Kc6 73. Ka7 Kc7 74. Ka8 Bg3 75. Ka7 Bd6 76. Ka8 Qb7# 0-1
2023.03.28 Titled Tue 28th Mar Late
1000945 Koellner, Ruben Gideon (2424) Van Foreest, Lucas (2570) 0-1
1. d4 g5 2. Bxg5 Bg7 3. Nf3 c5 4. Be3 Nc6 5. c3 Qb6 6. Qb3 cxd4 7. Qxb6 dxc3 8. Nxc3 axb6 9. Bxb6 Nb4 10. Rc1 Bxc3+ 11. Rxc3 Nd5 12. Bd4 Nxc3 13. Bxh8 Nxa2 14. e3 f6 15. Bc4 e6 16. Kd2 Nb4 17. g4 d5 18. Bb5+ Bd7 19. Bxd7+ Kxd7 20. g5 fxg5 21. Nxg5 Ne7 22. Bc3 Nbc6 23. f4 h6 24. Nf3 Nf5 25. Rg1 Ra4 26. Ne5+ Nxe5 27. Bxe5 Re4 28. Re1 Nh4 29. Rf1 Ng6 30. Bd4 Ne7 31. Kd3 Nf5 32. Rg1 Nxd4 33. exd4 Rxf4 34. Rg7+ Kd6 35. Rxb7 Rf3+ 36. Ke2 Rh3 37. Rb6+ Ke7 38. Rb7+ Kf6 39. b4 Rxh2+ 40. Ke3 Rh3+ 41. Ke2 h5 42. b5 Kf5 0-1
2023.03.28 Titled Tue 28th Mar Late
1001226 Baskakov, Egor (2215) Koellner, Ruben Gideon (2424) 1/2-1/2
1. e4 d6 2. g3 Nf6 3. Bg2 e5 4. Ne2 Be7 5. h3 O-O 6. O-O c6 7. d4 Nbd7 8. c4 a6 9. Nbc3 b5 10. b3 Bb7 11. Be3 b4 12. Nb1 exd4 13. Qxd4 c5 14. Qd3 Re8 15. Nd2 Bf8 16. Rad1 Qc7 17. Nf4 a5 18. Rfe1 a4 19. Nd5 Bxd5 20. exd5 axb3 21. axb3 Ra2 22. Bf4 Rxe1+ 23. Rxe1 Qa7 24. Ne4 Ra1 25. Rxa1 Qxa1+ 26. Kh2 Nxe4 27. Qxe4 Nf6 28. Qf5 Qa6 29. Bg5 Be7 30. Be4 h6 31. Be3 g6 32. Qf3 Kg7 33. Bc2 Qa2 34. Qd1 Nd7 35. h4 h5 36. Kg2 Bf6 37. Bd3 Ne5 38. Be2 Nd7 39. g4 hxg4 40. Bxg4 Ne5 41. h5 Nxg4 42. Qxg4 Qxb3 43. h6+ Kh7 44. Qd7 Qc3 45. Qxf7+ Kh8 46. Qe8+ Kh7 47. Qf7+ Bg7 48. hxg7 Qxg7 49. Qe6 Qf8 50. Qd7+ Kg8 51. Qe6+ Kh7 52. Qd7+ Kg8 53. Qc7 Qf5 54. Qxd6 Qg4+ 55. Qg3 Qe4+ 56. Qf3 Qxc4 57. d6 Qe6 58. Qa8+ Kf7 59. Qb7+ Kf6 60. d7 Qg4+ 61. Kh2 Qh4+ 62. Kg1 Qg4+ 63. Kf1 Qd1+ 64. Kg2 Qg4+ 65. Kh1 Qh4+ 66. Kg1 Qg4+ 67. Qg2 Qxd7 68. Bxc5 Qd1+ 69. Qf1 Qg4+ 70. Qg2 Qd1+ 71. Qf1 Qg4+ 72. Qg2 Qd1+ 1/2-1/2
2023.03.28 Titled Tue 28th Mar Late
1001277 Nazari, Arad (2366) Koellner, Ruben Gideon (2424) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. O-O-O+ Nd7 8. f3 Bd6 9. a3 Ke7 10. Nh3 h6 11. Be3 a6 12. Nf2 b5 13. h4 Rhb8 14. g4 b4 15. axb4 Bxb4 16. g5 hxg5 17. hxg5 Ne8 18. Nd5+ Bxd5 19. Rxd5 Bd6 20. Ra5 Bb4 21. Ra4 a5 22. c3 Bc5 23. Ng4 g6 24. Bc4 c6 25. Be2 Nd6 26. Kc2 Bxe3 27. Nxe3 Nc5 28. Raa1 a4 29. Nc4 Nxc4 30. Bxc4 Rh8 31. Ba2 Rad8 32. Raf1 Rb8 33. Bc4 Rbd8 34. Kb1 Nb3 35. Kc2 Rd2+ 36. Kb1 Rhh2 37. Ka2 Rxb2+ 38. Ka3 Ra2+ 39. Kb4 Rhb2 40. Bxb3 Rxb3+ 41. Kc4 Rc2 42. Rc1 Rbxc3+ 0-1
2023.03.28 Titled Tue 28th Mar Late
1001518 Koellner, Ruben Gideon (2424) Urazayev, Arystanbek (2460) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O Nc6 7. c3 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Qe2 c6 11. a4 a5 12. Rd1 Bg4 13. f3 Qb6+ 14. Qf2 Qxf2+ 15. Kxf2 Be6 16. Bxe6 fxe6 17. Ke2 b5 18. Nb3 Rfb8 19. Rd6 bxa4 20. Nd2 a3 21. bxa3 Ra6 22. Rxe6 Nd7 23. Re7 Nc5 24. a4 Bf6 25. Rc7 Bd8 26. Ba3 Bxc7 27. Bxc5 Rb2 28. Ba3 Rb8 29. Nc4 Kf7 30. Rd1 Ke6 31. Bd6 Bxd6 32. Rxd6+ Ke7 33. Rd1 Raa8 34. Nxe5 Rb2+ 35. Rd2 Rxd2+ 36. Kxd2 Kd6 37. f4 Kc5 38. Kd3 Rd8+ 39. Kc2 Re8 40. Kd3 Re7 41. g3 Rb7 42. Kc2 Re7 43. Kd3 Re6 44. Nd7+ Kd6 45. Ne5 Kc7 46. Nc4 Re8 47. e5 Kd7 48. Nxa5 Ke6 49. Nc4 Rd8+ 50. Kc2 Kd5 51. Ne3+ Ke4 52. Nc4 Kd5 53. Nd6 Ra8 54. Kb3 Rb8+ 55. Ka3 Rb1 56. a5 c5 57. c4+ Kc6 58. g4 Ra1+ 59. Kb3 Rxa5 60. f5 gxf5 61. gxf5 Ra1 62. f6 Kd7 63. Kc3 Ke6 64. Ne4 Kxe5 65. f7 Rf1 66. Nxc5 Rxf7 67. Nd3+ Kd6 68. Kd4 Rf5 69. h3 Rh5 70. Nf4 Rg5 71. Ke4 Rg1 72. Kf5 Kc5 73. h4 Kxc4 74. h5 Kd4 75. Ne6+ Kd5 76. Ng5 Rf1+ 77. Kg4 Ke5 78. Nxh7 Rg1+ 79. Kf3 Kf5 80. Nf8 Rh1 81. Ng6 Rh3+ 82. Kg2 Rxh5 83. Ne7+ Ke4 84. Kg3 Rg5+ 85. Kf2 Rg7 86. Nc6 Rc7 87. Nb4 Rc4 88. Na6 Kd5 89. Ke3 Kd6 90. Kd3 Ra4 91. Nb8 Ra8 0-1
2023.03.21 Titled Tue 21st Mar Early
1003728 Koellner, Ruben Gideon (2424) Yarullina, A (2084) 1-0
1. d4 Nf6 2. Nf3 d6 3. Nbd2 g6 4. e4 Bg7 5. Bc4 O-O 6. O-O Nbd7 7. e5 dxe5 8. dxe5 Ne8 9. e6 fxe6 10. Ng5 Ne5 11. Bxe6+ Kh8 12. Nc4 Qxd1 13. Rxd1 Bxe6 14. Nxe5 Bxe5 15. Nxe6 Rf6 16. Ng5 h6 17. Ne4 Bf4 18. Nxf6 Bxc1 19. Nxe8 1-0
2023.03.21 Titled Tue 21st Mar Early
1004038 Koellner, Ruben Gideon (2424) Drygalov, Andrey (2484) 0-1
1. d4 Nf6 2. Nf3 d5 3. Nbd2 c5 4. e3 Nc6 5. c3 g6 6. dxc5 Bg7 7. Bd3 O-O 8. e4 Bg4 9. O-O dxe4 10. Nxe4 Bxf3 11. Nxf6+ Bxf6 12. gxf3 Qc7 13. Be3 Be5 14. h3 Rfd8 15. Qe2 Qd7 16. Be4 Qxh3 17. f4 Bf6 18. Qf3 Qe6 19. Rfd1 Kg7 20. Bd5 Qc8 21. Kg2 Qc7 22. Rh1 e6 23. Be4 Rab8 24. Qh3 h5 25. Qg3 Rh8 26. Kf3 Ne7 27. Rad1 Nf5 28. Bxf5 exf5 29. Kg2 Qa5 30. a3 Qb5 31. Rd2 Rbd8 32. Rhd1 Rxd2 33. Rxd2 h4 34. Qf3 h3+ 35. Kh2 Qf1 36. Rd1 Qb5 37. Rd2 Rh4 38. Qd5 Rg4 39. Qd3 Qc6 40. Qd5 Qa6 41. Qd3 Qa4 42. Kxh3 Qe8 43. Qd8 Bxd8 44. Bd4+ Bf6 45. Bxf6+ Kxf6 46. Rd6+ Kg7 47. f3 Qh8# 0-1
2023.03.21 Titled Tue 21st Mar Early
1004211 Erigaisi, Arjun (2701) Koellner, Ruben Gideon (2424) 1-0
1. b3 d6 2. Bb2 e5 3. c4 Nf6 4. g3 Be7 5. Bg2 O-O 6. Nc3 c6 7. d4 Nbd7 8. d5 c5 9. e4 Ne8 10. Nge2 g6 11. h4 Ng7 12. Qd2 f5 13. h5 Nxh5 14. exf5 Bg5 15. Qc2 Qf6 16. g4 Nf4 17. Nxf4 Bxf4 18. Ne4 Qe7 19. fxg6 hxg6 20. Qd3 Nf6 21. Qh3 Qg7 22. Nxf6+ Rxf6 23. Ke2 Bd7 24. Be4 Raf8 25. f3 b5 26. Qh4 g5 27. Qh7+ Qxh7 28. Rxh7 R8f7 29. Rah1 Rxh7 30. Rxh7 Rf7 31. Rh6 bxc4 32. bxc4 Ba4 33. Rxd6 Rb7 34. Bc3 Kf7 35. Ra6 Bd7 36. Kd3 Ke8 37. Bf5 Ke7 38. Bxd7 Kxd7 39. Ke4 Rb1 40. Rxa7+ Kd6 41. Bxe5+ Bxe5 42. Ra6+ Kd7 43. Kxe5 Re1+ 44. Kf5 Rc1 45. Ra4 Rxc4 46. Rxc4 1-0
2023.03.21 Titled Tue 21st Mar Early
1004373 Koellner, Ruben Gideon (2424) Jimenez Jimenez, Leandro (2157) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 c5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bb6 10. b5 Na5 11. c4 Qe7 12. a4 Rd8 13. Ba3 Bc5 14. Bxc5 Qxc5 15. Qc2 Bd7 16. cxd5 Qxc2 17. Bxc2 Nxd5 18. Be4 Rac8 19. Rfc1 Nc3 20. Kf1 Kf8 21. h4 Ke7 22. Bxh7 g6 23. h5 Kf6 24. hxg6 fxg6 25. Rxc3 Rxc3 26. Ne4+ Kg7 27. Nxc3 Kxh7 28. Rd1 Nb3 29. Ne5 Nc5 30. Ke1 Kg7 31. f4 Kf6 32. g4 g5 33. Nxd7+ Rxd7 34. Ne4+ Nxe4 35. Rxd7 Nc5 36. Rc7 Nxa4 37. Rxb7 Nc3 38. Kd2 Ne4+ 39. Ke2 Nc3+ 40. Kd3 Nd5 41. fxg5+ Kxg5 42. Rxa7 Kxg4 43. Rd7 Nb4+ 44. Kc4 Nd5 45. Rxd5 exd5+ 46. Kxd5 Kf3 47. e4 Ke3 48. e5 Kd2 49. e6 Kc1 50. b6 Kb2 51. b7 Ka1 52. b8=Q Ka2 53. e7 Ka1 54. e8=Q Ka2 55. Qec8 Ka1 56. Qcb7 Ka2 57. Kc4 Ka1 58. Kc3 Ka2 59. Q8a8# 1-0
2023.03.21 Titled Tue 21st Mar Early
1004659 Lorenzo de la Riva, L (2420) Koellner, Ruben Gideon (2424) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. O-O h6 8. Re1 Qc7 9. h3 Nf8 10. Be3 g5 11. dxe5 dxe5 12. Nxe5 Be6 13. Bxe6 Nxe6 14. Ng4 Rd8 15. Qf3 Nxg4 16. Qxg4 O-O 17. Rad1 Rxd1 18. Rxd1 Rd8 19. Rxd8+ Qxd8 20. h4 Bb4 21. hxg5 hxg5 22. g3 Kg7 23. f4 Bxc3 24. bxc3 Qa5 25. f5 Qxc3 26. Bxg5 Nxg5 27. Qxg5+ Kf8 28. Qd8+ Kg7 29. Qd3 Qe5 30. Kf2 b5 31. axb5 cxb5 32. Kf3 a5 33. g4 a4 34. g5 b4 35. Qd8 a3 36. f6+ Kh7 37. Qf8 Qxg5 38. Qxf7+ Kh6 39. Qf8+ Kh5 40. Qh8+ Qh6 41. Qe8+ Qg6 42. f7 a2 43. f8=Q a1=Q 44. Qf5+ Kh4 45. Qexg6 Qf1+ 46. Ke3 Qe1+ 47. Kd4 Qc3+ 48. Kd5 Qd2+ 49. Ke6 Qd6+ 50. Kxd6 b3 51. Qgg4# 1-0
2023.03.21 Titled Tue 21st Mar Early
1004742 Hoffmann, As (2185) Koellner, Ruben Gideon (2424) 0-1
1. d4 d6 2. e4 Nf6 3. f3 Nbd7 4. Nc3 e5 5. Nge2 Be7 6. Be3 O-O 7. Qd2 c6 8. O-O-O b5 9. g4 b4 10. Nb1 Qa5 11. a3 d5 12. g5 Nh5 13. Ng3 Nf4 14. Nf5 Bxg5 15. axb4 Qa1 16. h4 Bf6 17. Bxf4 exf4 18. e5 Nxe5 19. dxe5 Bxe5 20. Nd4 a5 21. Re1 f6 22. Rxe5 fxe5 23. Nb3 Qa2 24. bxa5 Qa4 25. Rg1 Bf5 26. Bd3 Bxd3 27. Qxd3 Rf7 28. h5 e4 29. Qc3 exf3 30. h6 g6 31. Qxf3 Qe4 32. N1d2 Qe3 33. Rf1 Rd8 34. Qg4 f3 35. Kb1 f2 36. a6 c5 37. Qd1 c4 38. Na5 Qb6 39. Nb7 Re8 40. Nf3 c3 41. b3 Qxa6 42. Nc5 Qa3 43. Nd3 Ra8 0-1
2023.03.21 Titled Tue 21st Mar Early
1004900 Koellner, Ruben Gideon (2424) Shukhman, Anna (2166) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 a5 7. b5 c6 8. Ba3 Be6 9. Rc1 dxc4 10. bxc6 b5 11. Nxc4 bxc4 12. Bxc4 Bxc4 13. Rxc4 Qd5 14. Qc2 Rc8 15. c7 Na6 16. Bxe7 Nd7 17. O-O Ra7 18. Bd8 Nb6 19. Rc6 Nb4 20. Rxb6 Nxc2 21. Rb8 Qd7 22. Rc1 Raxc7 23. Bxc7 Qxc7 24. Rb2 Qc3 25. Rcxc2 Qxb2 26. Rxc8+ Bf8 27. g3 Qb7 0-1
2023.03.21 Titled Tue 21st Mar Late
1005676 Gruzman, Ilya (2131) Koellner, Ruben Gideon (2424) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. dxe5 Nxe5 7. Nxe5 dxe5 8. Qxd8+ Bxd8 9. f3 c6 10. Be3 b5 11. Bb3 Bb6 12. Bxb6 axb6 13. Kf2 Ke7 14. Rhd1 Nd7 15. g3 Nc5 16. f4 f6 17. Ke3 Bg4 18. Rd2 Rhd8 19. Rxd8 Rxd8 20. a4 b4 21. Na2 Nxb3 22. cxb3 c5 23. h3 Bxh3 24. Rh1 Be6 25. Rxh7 Kf7 26. Nc1 Rd1 27. Nd3 exf4+ 28. Nxf4 Bxb3 29. Nh5 Kg6 30. Rxg7+ Kxh5 31. Rb7 Rd6 32. Kf4 Kg6 33. Ra7 Bd1 34. g4 Bc2 35. Ra6 Re6 36. Kg3 Rxe4 37. Rxb6 Bxa4 0-1
2023.03.21 Titled Tue 21st Mar Late
1006018 Koellner, Ruben Gideon (2424) Burg, T (2517) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 c6 4. Nbd2 Bf5 5. Ne5 Nbd7 6. g4 Nxe5 7. gxf5 Ned7 8. Bd3 e5 9. fxe6 fxe6 10. f4 Qc7 11. Nf3 O-O-O 12. Ng5 Re8 13. Rg1 Re7 14. Bd2 h6 15. Nf3 g5 16. Ne5 Nxe5 17. fxe5 Nd7 18. Qh5 Bg7 19. O-O-O c5 20. c3 cxd4 21. exd4 Kb8 22. Kb1 Nb6 23. Rdf1 Nc4 24. Bc1 Rc8 25. Rf2 Qb6 26. Ka1 Nxe5 27. Bb1 Nc4 28. Rf7 Rec7 29. Rgf1 a5 30. Rxc7 Rxc7 31. Qe8+ Ka7 32. Re1 e5 33. dxe5 Bxe5 34. Rxe5 Nxe5 35. Qxe5 Qc6 36. Be3+ b6 37. a3 Rf7 38. Bd3 a4 39. Ka2 Qf6 40. Qxf6 Rxf6 41. Bb5 Rf3 42. Bd4 Rh3 43. Be5 g4 44. Bxa4 h5 45. Bd7 Re3 46. Bg3 Kb7 47. Kb3 Re7 48. Bf5 Rg7 49. Kc2 Kc6 50. Kd3 Rf7 51. Bg6 Rf3+ 52. Kd4 h4 53. Bxh4 Rf4+ 54. Ke3 Rf1 55. Bg3 Kc5 56. Bh5 Rb1 57. Bxg4 Rxb2 58. h4 Rb3 59. Be5 Rxa3 60. h5 b5 61. h6 b4 62. h7 Ra8 63. cxb4+ Kxb4 64. h8=Q Rxh8 65. Bxh8 Kc4 66. Bd4 Kb4 67. Kf4 Kc4 68. Ke5 Kd3 69. Kxd5 Kc2 70. Bf5+ Kd2 71. Be4 Ke2 72. Kc4 Kd2 73. Bd3 Kc1 74. Bc3 Kd1 75. Kd4 Kc1 76. Bf5 Kd1 77. Kd3 Kc1 78. Bg4 Kb1 79. Bd1 Kc1 80. Bb3 Kb1 81. Bd4 Kc1 82. Kc3 Kb1 83. Be3 Ka1 84. Bc1 Kb1 85. Ba3 Ka1 86. Be6 Kb1 87. Bf7 Ka1 88. Bb2+ Kb1 89. Bg6+ Ka2 90. Bf7+ Kb1 91. Ba3 Ka1 92. Kb3 Kb1 93. Bg6+ Ka1 94. Bb2# 1-0
2023.03.21 Titled Tue 21st Mar Late
1006114 Rasulov, Vu (2516) Koellner, Ruben Gideon (2424) 1-0
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. f3 Bd6 9. Nh3 Ke7 10. Nf2 Nbd7 11. Be3 a6 12. a4 c6 13. a5 Bb4 14. Nd3 Bxc3+ 15. bxc3 Ne8 16. O-O-O h6 17. Nc5 Nef6 18. Nxb7 Rhb8 19. Nc5 Rb5 20. Nb3 Rc8 21. c4 Rb4 22. c5 Ne8 23. Rd3 Rcb8 24. Rhd1 Ndf6 25. g4 R4b7 26. h4 Nd7 27. h5 Ndf6 28. g5 Nxh5 29. gxh6 gxh6 30. Bxh6 Nf4 31. Bg5+ Kf7 32. Rd7+ Kg6 33. Rxb7 Rxb7 34. Bxf4 exf4 35. Rd8 Nc7 36. Rd7 e5 37. Nd2 Kf6 38. c3 Ke6 39. Rh7 Ra7 40. c4 Rb7 41. Kc2 Kf6 42. Nb1 Kg6 43. Rd7 Kg5 44. Nc3 Kh4 45. Rg7 Kh3 46. Nd1 Ra7 47. Nf2+ Kh4 48. Nd3 Nb5 49. Rg4+ Kh3 50. cxb5 axb5 51. Nxe5 Rxa5 52. Rxf4 b4 53. Nd3 Ra2+ 54. Kb3 Ra3+ 55. Kc4 Rc3+ 56. Kd4 Rc2 57. Nxb4 1-0
2023.03.21 Titled Tue 21st Mar Late
1006293 Koellner, Ruben Gideon (2424) Manukyan, SaA (2163) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 Be7 5. Bd3 O-O 6. O-O b6 7. Ne5 Ba6 8. f4 Bxd3 9. cxd3 Nfd7 10. Qh5 f6 11. Nxd7 Qxd7 12. Nf3 Qe8 13. Qh3 f5 14. Ne5 Bd6 15. Bd2 Bxe5 16. fxe5 Nd7 17. Rac1 Rc8 18. b4 c5 19. bxc5 bxc5 20. dxc5 Nxe5 21. d4 Nc4 22. Be1 Qa4 23. Qf3 Qxa2 24. Bg3 Qa3 25. Rfe1 a5 26. Bf4 Nd2 27. Qe2 Ne4 28. Ra1 Qb4 29. Reb1 Nc3 30. Rxb4 Nxe2+ 31. Kf2 Nxf4 32. Rb3 Ng6 33. Rxa5 f4 34. Rb6 fxe3+ 35. Kxe3 e5 36. Rd6 exd4+ 37. Kxd4 Rf4+ 38. Kxd5 Rf5+ 39. Kd4 Ne7 40. Rb5 Nc6+ 41. Ke4 Re5+ 42. Kf4 Rf8+ 43. Kg3 Re3+ 44. Kg4 Ne5+ 45. Kh4 h6 46. c6 g6 47. Rb4 Kg7 48. Rb7+ Nf7 49. Rd4 g5+ 50. Kg4 Kg6 51. g3 h5+ 52. Kh3 Re2 0-1
2023.03.21 Titled Tue 21st Mar Late
1006476 Fernandez Siles, L (2210) Koellner, Ruben Gideon (2424) 1-0
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. Ng5 Bg7 6. e4 Bd7 7. Be2 e5 8. d5 a5 9. h4 h6 10. Nh3 Na6 11. f3 Nh5 12. Nf2 Ng3 13. Rh2 Nc5 14. Nh1 Nxh1 15. Rxh1 f5 16. h5 g5 17. g4 fxg4 18. fxg4 O-O 19. Be3 Qe7 20. Rf1 Rf4 21. Bxf4 exf4 22. Bf3 Re8 23. Kf2 Bxc3 24. bxc3 Nxe4+ 25. Bxe4 Qxe4 26. Re1 Qxc4 27. Rxe8+ Bxe8 28. Qd4 Qxd4+ 29. cxd4 Bf7 30. Rc1 Bxd5 31. Rxc7 Bxa2 32. Rxb7 a4 33. Ra7 Bb3 34. Ra6 Bd1 35. Rxd6 a3 36. Rxh6 Bxg4 37. Rg6+ Kf7 38. Rxg5 a2 39. Ra5 1-0
2023.03.21 Titled Tue 21st Mar Late
1006565 Koellner, Ruben Gideon (2424) Liwak, P (2342) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 b6 4. e4 d5 5. e5 Nfd7 6. Bd3 Ba6 7. Bxa6 Nxa6 8. O-O Be7 9. c3 O-O 10. Re1 c5 11. Nf1 Nab8 12. Bf4 Nc6 13. h4 Rc8 14. h5 a5 15. h6 g6 16. Ne3 b5 17. Qd2 b4 18. Ng4 bxc3 19. bxc3 cxd4 20. cxd4 Bb4 21. Qe3 Bxe1 22. Rxe1 Nb4 23. Bg5 Qc7 24. Be7 Nc2 25. Qf4 Nxe1 26. Nf6+ Nxf6 27. Qxf6 Nxf3+ 28. gxf3 Qc1+ 29. Kg2 Qxh6 30. Bd6 Rfe8 31. f4 Rc3 32. f3 Rc2+ 33. Kg3 Qh2+ 34. Kg4 Rg2# 0-1
2023.03.14 Titled Tue 14th Mar Late
1010929 Koellner, Ruben Gideon (2424) Liu, Casper (2241) 1-0
1. d4 Nf6 2. Nf3 b5 3. Nbd2 Bb7 4. e3 a6 5. a4 b4 6. Bd3 e6 7. e4 c5 8. c3 cxd4 9. cxd4 Nc6 10. b3 Rc8 11. O-O d6 12. Qe2 Qb6 13. Bb2 Be7 14. Nc4 Qc7 15. e5 Nd5 16. Qd2 dxe5 17. dxe5 O-O 18. Rfd1 Rfd8 19. Rac1 h6 20. Qe1 Nf4 21. Bb1 g5 22. g3 Nh3+ 23. Kf1 Rxd1 24. Rxd1 Rd8 25. Rxd8+ Qxd8 26. Qe4 Qd1+ 27. Kg2 Kf8 28. Bc2 Qd7 29. Qh7 Ke8 30. Kxh3 1-0
2023.03.14 Titled Tue 14th Mar Late
1011071 Koellner, Ruben Gideon (2424) Smith, Ga (2047) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 c6 6. c4 Bf5 7. Bb2 Ne4 8. Be2 Nxd2 9. Nxd2 O-O 10. O-O Nd7 11. Nf3 Nb6 12. c5 Nd7 13. a4 Qc7 14. h3 e5 15. Re1 Rfe8 16. b5 e4 17. Nh2 h5 18. Qd2 Nf8 19. a5 Qd7 20. a6 cxb5 21. axb7 Qxb7 22. Ra5 a6 23. Rea1 Nd7 24. Bc3 Nb8 25. Bxb5 Bd7 26. Bxd7 Qxd7 27. Qa2 f5 28. Nf1 g5 29. c6 Qxc6 30. Qxd5+ Qxd5 31. Rxd5 Rf8 32. Ng3 Nc6 33. Rxf5 Rxf5 34. Nxf5 a5 35. Nxg7 1-0
2023.03.14 Titled Tue 14th Mar Late
1011249 Xu, Yi (2505) Koellner, Ruben Gideon (2424) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. h3 Nf8 10. b3 Ng6 11. Bf1 O-O 12. g3 b6 13. Bg2 a6 14. Bb2 Bb7 15. Qd3 b5 16. Rad1 Rfd8 17. Ba3 Bf8 18. Qe3 exd4 19. Nxd4 c5 20. Nf5 b4 21. Bb2 bxc3 22. Bxc3 Nd7 23. f4 Re8 24. Qf3 c4 25. Kh2 Nc5 26. Rd4 cxb3 27. cxb3 Bxe4 28. Rdxe4 Nxe4 29. Rxe4 Rxe4 30. Qxe4 Rb8 31. Qd4 Rxb3 32. Ba1 Qc5 33. Nxh6+ Kh7 34. Nxf7 Qxd4 35. Bxd4 Be7 36. h4 Rb4 37. Bc3 Rxa4 38. h5 Nh8 39. Bh3 Nxf7 40. Bf5+ Kg8 41. Be6 Kf8 42. g4 Bf6 0-1
2023.03.14 Titled Tue 14th Mar Late
1011438 Albornoz Cabrera, Carlos Daniel (2583) Koellner, Ruben Gideon (2424) 1-0
1. Nf3 d6 2. e4 Nf6 3. Nc3 e5 4. d4 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. h3 Qc7 9. a5 Nf8 10. d5 g5 11. Nd2 Ng6 12. Bb3 a6 13. Nc4 Rb8 14. Be3 c5 15. Ba4+ Kf8 16. Nb6 Kg7 17. Ne2 g4 18. Nxc8 Qxc8 19. Ng3 Nh4 20. hxg4 Qxg4 21. Qxg4+ Nxg4 22. Bd2 Bg5 23. f4 exf4 24. Bxf4 Rbd8 25. Rae1 f6 26. c3 Rhf8 27. Bd1 Ne5 28. Bh5 Nd3 29. Bxg5 hxg5 30. Re2 Rh8 31. Bg4 Ne5 32. Bf5 Rb8 33. Be6 b6 34. Ra1 b5 35. Rf1 b4 36. Ref2 Rh6 37. Ne2 bxc3 38. Nxc3 Nd3 39. Rd2 Ne5 40. Rdf2 Nd3 41. Rd2 c4 42. Na4 Rb4 43. Nb6 Nxb2 44. Rb1 c3 45. Rc2 Rb3 46. Nc4 Ng6 47. Nxd6 Ne5 48. Nf5+ Kg6 49. Nxh6 Kxh6 50. d6 Rb8 51. Rxc3 Ng4 52. Bxg4 1-0
2023.03.14 Titled Tue 14th Mar Late
1011592 Koellner, Ruben Gideon (2424) Mendonca, Leon Luke (2558) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 c5 5. b3 b6 6. Bb5+ Bd7 7. Bd3 Be7 8. Bb2 O-O 9. O-O Nc6 10. Ne5 Rc8 11. a3 Nxe5 12. dxe5 Ne8 13. Qh5 g6 14. Qh3 Ng7 15. f4 b5 16. Be2 Bc6 17. Nf3 a5 18. Rad1 Qb6 19. g4 d4 20. exd4 Bxf3 21. Qxf3 cxd4 22. Bxd4 Bc5 23. Qe3 Bxd4 24. Qxd4 Qxd4+ 25. Rxd4 Rxc2 26. Bxb5 h5 27. h3 Rc3 28. Rd3 Rfc8 29. Rff3 Rc1+ 30. Kg2 Ra1 31. a4 Rcc1 32. Rd8+ Kh7 33. Rf8 Rg1+ 34. Kf2 hxg4 35. hxg4 Rxg4 36. Rxf7 Kg8 37. Rc7 Nf5 38. Rfc3 Rxf4+ 39. Kg2 Rg4+ 40. Kf3 Rag1 41. Ke2 R1g2+ 42. Kd1 Rh2 43. Rc8+ Kg7 44. R3c7+ Kh6 45. Rh8+ Kg5 46. Rxh2 Nd4 47. Bc4 Nf3 48. Rf2 Nxe5 49. Bxe6 Rd4+ 50. Rd2 Re4 51. Rc5 Kf6 52. Bc4 Nf3 53. Rf2 Rf4 54. Ke2 Nd4+ 55. Ke3 Rxf2 56. Kxf2 g5 57. Rxa5 g4 58. Rd5 Nf5 59. Rxf5+ Kxf5 60. Kg3 Kg5 61. b4 Kf6 62. b5 Ke5 63. a5 Kd4 64. Kxg4 Kc5 65. Kf5 Kb4 66. b6 Kxa5 67. b7 Kb4 68. b8=Q+ Ka5 69. Qb5# 1-0
2023.03.14 Titled Tue 14th Mar Late
1011667 Yeletsky, Ivan (2494) Koellner, Ruben Gideon (2424) 1-0
1. b4 c6 2. e3 a5 3. b5 Nf6 4. Nf3 d5 5. c4 e6 6. Bb2 Be7 7. Nc3 O-O 8. Rc1 Nbd7 9. Be2 Bd6 10. d4 Ne4 11. O-O f5 12. bxc6 bxc6 13. cxd5 cxd5 14. Nb5 Bb8 15. Ba3 Rf6 16. Qc2 Bb7 17. Nc7 Ra7 18. Bb5 Rh6 19. g3 g5 20. Bxd7 Qxd7 21. Ne5 Qd8 22. Nb5 Ra6 23. f3 Nf6 24. Qc5 Rb6 25. Nc7 Bxc7 26. Qxc7 Qxc7 27. Rxc7 Ba6 28. Rfc1 g4 29. R1c6 Rxc6 30. Rxc6 Be2 31. Rc8+ 1-0
2023.03.14 Titled Tue 14th Mar Late
1011795 Szente Varga, F (2076) Koellner, Ruben Gideon (2424) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. d5 O-O 7. Be3 Ng4 8. Qd2 Nxe3 9. Qxe3 f5 10. O-O-O Nc5 11. Kb1 fxe4 12. Nxe4 Nxe4 13. Qxe4 Rf4 14. Qe2 Bg4 15. Bd3 Bf6 16. Be4 Qd7 17. h3 Bf5 18. Nd2 Bxe4 19. Nxe4 Qf5 20. f3 Rf8 21. Rd3 a5 22. g3 Rxe4 23. fxe4 Qd7 24. Rf3 c5 25. g4 h6 26. Rf5 Qe7 27. Qf2 g6 28. Rf3 Kg7 29. Rf1 Bh4 30. Qe2 Rxf3 31. Qxf3 b5 32. Qe2 Qd7 33. a4 bxa4 34. Qa6 a3 35. bxa3 Qc7 36. Ka2 Bg5 37. Rb1 Qd8 38. Rb7+ Be7 39. Qa7 Kf7 40. Rb8 Qd7 41. Qxd7 1-0
2023.03.12 Chessemy Open A 2023
1015607 Koellner, Ruben Gideon (2424) Popvasilev, Kaloyan (2213) 1-0
1. d4 e6 2. Nf3 b6 3. Nbd2 Bb7 4. e4 d6 5. Bd3 Nd7 6. c3 g6 7. a4 a6 8. O-O Bg7 9. Qe2 Ne7 10. Re1 e5 11. dxe5 dxe5 12. Nc4 O-O 13. Rd1 h6 14. b3 Re8 15. Bc2 Qc8 16. Ba3 Nc6 17. Ne3 Nf6 18. b4 Nh5 19. Bb3 Nf4 20. Qa2 Nd8 21. Qc2 Nde6 22. Bc4 Rd8 23. Bf1 Rxd1 24. Rxd1 c5 25. g3 cxb4 26. Bxb4 Nh5 27. Nd5 Bxd5 28. exd5 Nc5 29. d6 Qe6 30. a5 Nd7 31. axb6 Nxb6 32. c4 a5 33. Ba3 Nf6 34. c5 Nbd5 35. Bc4 e4 36. Nd4 Qg4 37. Be2 Qh3 38. Bf1 Qh5 39. Be2 Qh3 40. c6 Ng4 41. Bxg4 Qxg4 42. Ne2 e3 43. Rxd5 Qf3 44. Nf4 Rb8 45. fxe3 Qxe3+ 46. Kg2 Rb3 47. Qe2 1-0
2023.03.11 Chessemy Open A 2023
1015570 Koellner, Aaron Noah (2148) Koellner, Ruben Gideon (2424) 0-1
1. Nf3 d5 2. e3 Nd7 3. c4 e6 4. Nc3 Ngf6 5. Qc2 c6 6. b3 Bd6 7. Bb2 a6 8. d4 O-O 9. a3 Re8 10. Be2 e5 11. dxe5 Nxe5 12. cxd5 cxd5 13. h3 Nxf3+ 14. Bxf3 d4 15. Nd1 Bb8 16. Rc1 d3 17. Qd2 Bf5 18. Nc3 Ra7 19. g4 Bg6 20. h4 h6 21. g5 hxg5 22. hxg5 Nd7 23. Ne4 Be5 24. Bxe5 Nxe5 25. Bg2 b5 26. Rd1 Qe7 27. Qb4 Qxb4+ 28. axb4 Nc6 29. Nd6 Re6 30. Bxc6 Rxd6 31. Bg2 Rc7 32. f3 d2+ 33. Ke2 Bd3+ 34. Kxd2 Bc2+ 35. Ke2 Bxd1+ 36. Rxd1 Rc2+ 37. Kf1 Rxd1# 0-1
2023.03.10 Chessemy Open A 2023
1015521 Koellner, Ruben Gideon (2424) Pubantz, Jan (2310) 0-1
1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. f3 Nc6 6. e4 dxe4 7. d5 Ne5 8. fxe4 e6 9. Nf3 Nxf3+ 10. Qxf3 Bd7 11. Bg5 Be7 12. Rd1 exd5 13. e5 Ne4 14. Bxe7 Qxe7 15. Nxe4 dxe4 16. Qxe4 Bc6 17. Qf4 O-O 18. Bc4 Bxg2 19. Rg1 Bh3 20. Rd4 Rae8 21. Rg5 g6 22. Qh4 Qc7 23. Re4 Be6 24. Be2 Bd5 25. Re3 f6 26. Qd4 fxg5 27. Qxd5+ Kg7 28. Bc4 Rf5 29. Qd4 Rfxe5 30. Kf1 Qe7 31. Kg2 Qf6 0-1
2023.03.09 Chessemy Open A 2023
1015474 Ghosh, D (2565) Koellner, Ruben Gideon (2424) 1-0
1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. Nc3 Be7 5. b3 O-O 6. Bb2 c5 7. cxd5 Nxd5 8. Qc2 Nc6 9. a3 b6 10. h4 h6 11. g4 Bb7 12. g5 h5 13. Ne4 g6 14. Rg1 Qe8 15. Bc4 Rd8 16. Nf6+ Bxf6 17. gxf6 e5 18. Rg5 Rd6 19. Nxe5 Nxe5 20. Bxe5 Re6 21. f4 b5 22. Bxb5 Bc6 23. Bc4 1-0
2023.03.08 Chessemy Open A 2023
1015437 Koellner, Ruben Gideon (2424) Rafiee, M (2282) 1-0
1. d4 d5 2. Nf3 c6 3. e3 Nf6 4. Nbd2 Bg4 5. h3 Bh5 6. g4 Bg6 7. Ne5 Nfd7 8. Nxg6 hxg6 9. Bg2 e6 10. e4 dxe4 11. Nxe4 Nf6 12. Nxf6+ Qxf6 13. c3 Bd6 14. Qb3 Qe7 15. Be3 Qc7 16. O-O-O Nd7 17. Kb1 Nf6 18. c4 O-O 19. Bf3 Bf4 20. h4 Rab8 21. g5 Nh5 22. Rdg1 Qa5 23. Qc2 Bc7 24. Ka1 Nf4 25. h5 gxh5 26. Rh4 e5 27. g6 fxg6 28. Bxf4 g5 29. Rxh5 Rxf4 30. Qh7+ Kf8 31. Rhxg5 Rxf3 32. Qxg7+ Ke8 33. Qg8+ Rf8 34. Qe6+ Kd8 35. Rg7 1-0
2023.03.07 Chessemy Open A 2023
1015399 Ramme, C (2129) Koellner, Ruben Gideon (2424) 0-1
1. d4 d6 2. Nf3 Nf6 3. c4 Nbd7 4. Nc3 e5 5. e4 Be7 6. Be2 O-O 7. O-O c6 8. Rb1 a6 9. b4 b5 10. Re1 Qc7 11. Bd2 exd4 12. Nxd4 Nb6 13. cxb5 cxb5 14. Rc1 Qd7 15. Bf4 Bb7 16. Nf5 Rfd8 17. Qd4 Nc4 18. Bxc4 bxc4 19. Bg5 Re8 20. Re3 Bd8 21. Rg3 Re5 22. Bf4 Rxf5 23. exf5 Nh5 24. Qxd6 Qxd6 25. Bxd6 Nxg3 26. hxg3 Bf6 27. Na4 Rd8 28. Bf4 Bc6 29. Nc5 c3 30. Nxa6 Ra8 31. Nc7 Ra7 32. a3 Rxa3 33. b5 Ra2 34. Be3 Bb7 35. Na6 c2 36. g4 Be4 37. Re1 Bc3 38. Rc1 Bd3 39. Nc7 Rb2 40. Nd5 Be5 41. b6 Rb1 42. Nf4 Be4 43. b7 Bxb7 44. Kh2 Be4 45. f3 Bb2 46. Rh1 c1=Q 47. Bxc1 Bxc1 48. Ne2 Bb2 49. fxe4 Be5+ 50. g3 Rb2 51. Re1 Bc3 0-1
2023.03.06 Chessemy Open A 2023
1015355 Bach, Mat (2198) Koellner, Ruben Gideon (2424) 1/2-1/2
1. d4 d6 2. e4 Nf6 3. Bd3 e5 4. c3 Nbd7 5. f4 c5 6. d5 exf4 7. Bxf4 Qe7 8. Qe2 Ne5 9. Nd2 Bg4 10. Ngf3 Bxf3 11. gxf3 Nh5 12. Bxe5 Qxe5 13. Bc2 a6 14. O-O-O Nf4 15. Ba4+ b5 16. Bxb5+ Kd8 17. Qf1 axb5 18. Qxb5 Qe7 19. Nc4 f6 20. Na5 Qd7 21. Nc6+ Kc8 22. a4 Qb7 23. Qxb7+ Kxb7 24. a5 c4 25. Kd2 Nd3 26. Ra1 Ne5 27. Ra4 Nxf3+ 28. Ke3 Ne5 29. Rb4+ Kc7 30. Nxe5 fxe5 31. Rxc4+ Kd7 32. b4 Be7 33. Rf1 Bf6 34. Kd3 Ra6 35. Ra1 Rb8 36. Kc2 Bg5 37. Kb3 Bf4 38. Ka4 Rba8 39. Kb5 g5 40. h3 h5 41. Rg1 R6a7 42. Rc6 Rc7 43. Rxc7+ Kxc7 44. c4 Rb8+ 45. Ka4 Bd2 46. b5 Ra8 47. a6 Kb6 48. c5+ dxc5 49. Rd1 Be3 50. d6 Rd8 51. Rd3 Bf4 52. d7 g4 53. hxg4 hxg4 54. Rd6+ Kc7 55. Rg6 c4 56. b6+ Kxd7 57. Kb5 c3 58. a7 c2 59. Rg7+ Ke6 60. Rc7 Be3 61. Rxc2 Kf6 62. Rc6+ Kg5 63. Ka6 Kf4 64. Rg6 Bxb6 65. Kxb6 Kxe4 66. Rxg4+ Kf3 67. Ra4 e4 68. a8=Q 1/2-1/2
2023.03.04 Chessemy Open A 2023
1021522 Koellner, Ruben Gideon (2424) Weigand, Anton (1989) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 Bd6 5. Bd3 O-O 6. O-O Nbd7 7. e4 dxe4 8. Nxe4 Nxe4 9. Bxe4 Nf6 10. Bg5 Be7 11. Bxf6 Bxf6 12. c3 c6 13. Qe2 Qc7 14. Rfe1 b6 15. Ne5 Bxe5 16. dxe5 Bb7 17. Rad1 Rad8 18. Qh5 h6 19. Re3 Rxd1+ 20. Qxd1 Rd8 21. Rd3 Rxd3 22. Qxd3 c5 23. Qd6 Qc8 24. Bc2 Bc6 25. h4 h5 26. f3 g6 27. Kf2 Qd7 28. g4 Kg7 29. Be4 Qxd6 30. exd6 Bd7 31. gxh5 gxh5 32. f4 f6 33. Bf3 Kg6 34. Ke3 Bb5 35. Be2 Bd7 36. b4 cxb4 37. cxb4 Bc6 38. b5 Bd7 39. Ke4 Kh6 40. a4 Kg6 41. Bf3 Kh6 42. Kd4 Kg6 1-0
2023.02.28 Titled Tue 28th Feb Early
1022037 Koellner, Ruben Gideon (2410) Rose, F (2091) 1-0
1. d4 d5 2. Nf3 Nf6 3. Nbd2 c5 4. e3 cxd4 5. exd4 Nc6 6. c3 Bf5 7. Bb5 Rc8 8. Ne5 Qb6 9. Bxc6+ bxc6 10. g4 Bd3 11. Nxd3 1-0
2023.02.28 Titled Tue 28th Feb Early
1022450 Koellner, Ruben Gideon (2410) Moroni, L (2576) 1/2-1/2
1. d4 g6 2. Nf3 Bg7 3. Nbd2 d6 4. e4 Nf6 5. Bc4 O-O 6. O-O Nxe4 7. Nxe4 d5 8. Bd3 dxe4 9. Bxe4 Nd7 10. c3 c5 11. Be3 Qc7 12. dxc5 Nxc5 13. Bc2 b6 14. Bxc5 bxc5 15. Qe2 Rb8 16. Bb3 Bb7 17. Rfe1 e6 18. Rad1 Rfd8 19. Rxd8+ Rxd8 20. Rd1 Bf6 21. Rxd8+ Qxd8 22. Qd2 Qxd2 23. Nxd2 Bg5 24. Nc4 Bc1 25. Bc2 Bd5 26. b3 Bxc4 27. bxc4 Bd2 28. Kf1 Kf8 29. Ke2 Bxc3 30. Ba4 Ke7 31. h3 Bd4 32. f3 h5 33. Kd3 h4 34. Ke4 f5+ 35. Kd3 Kf6 36. Be8 g5 37. Bd7 Ke5 38. Bc8 Kd6 39. Ke2 Ke5 40. Kd3 Kf6 41. Ke2 Be5 42. Kd3 Bd6 43. Bd7 Ke5 44. Bc8 Be7 45. Bd7 Bd8 46. Bc8 Ba5 47. Bd7 Be1 48. Bc8 Bf2 49. Bd7 a5 50. a4 Bd4 51. Bc8 Bf2 52. Bd7 Be1 53. Bc8 Bb4 54. Bd7 Ba3 55. Bc8 Bb2 56. Bd7 Ba1 57. Bc8 g4 58. hxg4 fxg4 59. fxg4 Kf4 60. Bxe6 Kg3 61. Bd5 Kxg4 62. Bf3+ Kf4 63. Bd5 Bb2 64. Bc6 Ba3 65. Bb7 Bb4 66. Bc8 Kg3 67. Bb7 Kf2 68. Bc6 Ba3 69. Bb7 Bb2 70. Bc6 Bd4 71. Bd5 Ke1 72. Bf3 Kf1 73. Bb7 Kg1 74. Be4 Kf2 75. Bd5 Kg3 76. Be4 Kf4 77. Bd5 Be5 78. Be4 Bc7 79. Bd5 Bd8 80. Bc6 Bf6 81. Bb7 Kg3 82. Bc6 Bg7 83. Bd5 Kf2 84. Be4 Ke1 85. Bf3 Bf6 86. Bd5 Kf2 87. Bc6 Bd4 88. Bd5 1/2-1/2
2023.02.28 Titled Tue 28th Feb Early
1022637 Neiksans, A (2609) Koellner, Ruben Gideon (2410) 1-0
1. Nf3 Nf6 2. g3 d5 3. Bg2 Nbd7 4. d4 e6 5. O-O b5 6. a4 b4 7. c4 bxc3 8. Nxc3 a5 9. Bf4 c6 10. e4 Ba6 11. Re1 Bb4 12. Ne5 Nxe5 13. dxe5 Nd7 14. exd5 cxd5 15. Bxd5 exd5 16. e6 O-O 17. exd7 Bxc3 18. bxc3 Qxd7 19. Be5 Bc4 20. Bd4 Rfe8 21. Qh5 f6 22. h4 Qf7 23. Qf5 Qg6 24. Qd7 Qf7 25. Qd6 Rxe1+ 26. Rxe1 Re8 27. Rb1 Qe6 28. Qxe6+ Rxe6 29. Rb8+ Kf7 30. Ra8 Re1+ 31. Kg2 Bf1+ 32. Kf3 Be2+ 33. Ke3 Bc4+ 34. Kd2 Re2+ 35. Kc1 Re1+ 36. Kd2 Re2+ 37. Kd1 Ra2 38. Rxa5 Rxa4 39. Rc5 Ra1+ 40. Kd2 Ra2+ 41. Ke3 Re2+ 42. Kf3 Re7 43. h5 Be2+ 44. Kf4 Bxh5 45. g4 Bg6 46. Rxd5 Re4+ 47. Kg3 Re7 48. f3 Bd3 49. Rc5 Bf1 50. Kf2 Bd3 51. Rc8 Re2+ 52. Kg3 Rc2 53. f4 Be4 54. f5 Bd5 55. Rc7+ Kf8 56. Kf4 Rg2 57. c4 Bf7 58. Bc5+ Ke8 59. Re7+ Kd8 60. Rxf7 Rc2 61. Bf8 Rxc4+ 62. Kg3 Ke8 63. Rxg7 Kxf8 64. Rxh7 Rc1 65. Rd7 1-0
2023.02.28 Titled Tue 28th Feb Early
1022879 Melikhov, E (2269) Koellner, Ruben Gideon (2410) 1/2-1/2
1. d4 d6 2. e4 Nf6 3. Bd3 e5 4. d5 Be7 5. c4 O-O 6. Nc3 a5 7. f3 Nbd7 8. Be3 b6 9. Qd2 Nc5 10. Bc2 Bd7 11. Nb5 Nh5 12. O-O-O Bxb5 13. cxb5 h6 14. Ne2 Bg5 15. g4 Nf4 16. Nxf4 exf4 17. Bxf4 Bxf4 18. Qxf4 Qg5 19. Qxg5 hxg5 20. h4 f6 21. h5 Kf7 22. b3 Nd7 23. Bd3 Ne5 24. Be2 Rh8 25. Kd2 Ke7 26. Rc1 Kd7 27. Ke3 g6 28. f4 gxf4+ 29. Kxf4 g5+ 30. Ke3 Rh6 31. Kd4 Ra7 32. Rhf1 Ke7 33. Rc2 Kd7 34. a3 Kd8 35. Ra1 Kd7 36. Rca2 Rh8 37. Rf1 Rh6 38. Raa1 Kd8 39. Rf2 Kd7 40. Raf1 Ke7 41. Rc1 Kd7 42. Rcf1 Ke7 43. Rc1 Nd7 44. Rcf1 Rh8 45. Bd3 Rh6 46. Ke3 Ne5 47. Be2 Nd7 48. Bd3 Nc5 49. Bc2 Nd7 50. Bd3 1/2-1/2
2023.02.28 Titled Tue 28th Feb Early
1023018 Koellner, Ruben Gideon (2410) Llanos, G (2296) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 b6 5. Bd3 Bb7 6. Ne5 Nbd7 7. f4 Be7 8. Qf3 c5 9. c3 Qc7 10. O-O O-O 11. g4 cxd4 12. exd4 g6 13. g5 Nh5 14. h4 a5 15. Re1 Ba6 16. Bxa6 Rxa6 17. a4 f6 18. Nxd7 Qxd7 19. Qe2 Nxf4 20. Qxa6 e5 21. Re2 1-0
2023.02.28 Titled Tue 28th Feb Early
1023209 Koellner, Ruben Gideon (2410) Dominguez Perez, L (2743) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. c3 e6 5. Nbd2 Nbd7 6. Bd3 b6 7. Ne5 Bb7 8. f4 Be7 9. Qf3 O-O 10. O-O Qc7 11. g4 a5 12. g5 Ne8 13. Bxh7+ Kxh7 14. Qh5+ Kg8 15. Rf3 Nef6 16. Qh4 g6 17. gxf6 Nxf6 18. Rh3 Nh5 19. Qg4 Ng7 20. Rh6 Bf6 21. Ndf3 Nf5 22. Rh3 Kg7 23. Ng5 Bxg5 24. fxg5 Rh8 25. e4 dxe4 26. Bf4 Rxh3 27. Qxh3 e3 28. Nd3 Qc6 29. Be5+ Kf8 30. Qh8+ Ke7 31. Bf6+ Kd6 32. Be5+ Kd7 0-1
2023.02.28 Titled Tue 28th Feb Early
1023366 Seletsky, G (2279) Koellner, Ruben Gideon (2410) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. dxe5 Nxe5 7. Nxe5 dxe5 8. Qxd8+ Bxd8 9. f3 c6 10. a4 a5 11. Be3 Nd7 12. Ke2 Bb6 13. Bxb6 Nxb6 14. Bb3 Ke7 15. Rhd1 Be6 16. Bxe6 Kxe6 17. b3 Nd7 18. Rd2 Nc5 19. Rad1 Ke7 20. Ke3 Rad8 21. Rxd8 Rxd8 22. Rxd8 Kxd8 23. Nd1 b5 24. Nb2 Kc7 25. Kd2 Kd6 26. Kc3 g6 27. Kd2 f5 28. Ke3 h5 29. h4 Kc7 30. axb5 cxb5 31. g3 Kd6 32. Nd3 fxe4 33. fxe4 Nxd3 34. Kxd3 Kc6 35. c3 Kc5 36. Ke3 a4 37. Kd2 axb3 38. Kc1 Kc4 39. Kb2 b4 40. cxb4 Kxb4 0-1
2023.02.28 Titled Tue 28th Feb Early
1023670 Koellner, Ruben Gideon (2410) Galchenko, Matvey (2442) 0-1
1. d4 Nf6 2. Nf3 c5 3. d5 b5 4. e4 Nxe4 5. Bd3 Nf6 6. Bxb5 g6 7. O-O Bg7 8. Nc3 O-O 9. Re1 d6 10. Qe2 e6 11. Bg5 h6 12. Bxf6 Qxf6 13. Rad1 a6 14. Bc4 e5 15. a3 Nd7 16. b4 cxb4 17. axb4 Nb6 18. Bb3 Bg4 19. Ne4 Qe7 20. h3 Bxf3 21. Qxf3 f5 22. Nc5 e4 23. Qe2 Bc3 24. Rf1 Nd7 25. Nxa6 Kh7 26. b5 Rfc8 27. Kh1 Bg7 28. f3 Nf6 29. Nb4 Nh5 30. Qe1 Qg5 31. Kh2 Be5+ 32. Kg1 Bc3 33. f4 Bxe1 34. fxg5 Bxb4 35. gxh6 Ng3 36. Ra1 Bc5+ 37. Kh2 Nxf1+ 38. Rxf1 Bd4 39. Kg3 Be5+ 40. Kf2 Kxh6 41. Ke2 f4 42. Kf2 Rc3 43. Re1 e3+ 44. Kf3 Kg5 45. Rb1 Rb8 46. Ra1 Rxb3 47. Ra7 Rc3 48. h4+ Kh6 49. Rf7 Rxc2 50. g4 Rf2+ 51. Ke4 g5 52. h5 e2 53. Kf5 e1=Q 54. b6 Qb1+ 55. Ke6 Re2 56. Rf5 Bg7+ 57. Kf7 Qxf5+ 58. gxf5 f3 59. f6 Bxf6 60. Kxf6 f2 61. b7 f1=Q# 0-1
2023.02.28 Titled Tue 28th Feb Early
1023770 Goltseva, Ekaterina (2280) Koellner, Ruben Gideon (2410) 0-1
1. Nf3 d6 2. b3 e5 3. d3 f5 4. Bb2 Nf6 5. c4 Be7 6. Nc3 O-O 7. e3 Be6 8. Be2 c6 9. O-O Nbd7 10. d4 e4 11. Nd2 d5 12. f3 Bd6 13. f4 h6 14. Kh1 g5 15. g3 Kg7 16. Rg1 g4 17. Kg2 h5 18. c5 Bc7 19. b4 a6 20. a4 Rh8 21. b5 Qe7 22. bxc6 bxc6 23. Qf1 a5 24. Ba3 h4 25. Rh1 Rh5 26. Rb1 Rah8 27. Qf2 Kg6 28. Rb7 hxg3 29. Qxg3 Bb8 30. Nf1 Rh3 31. Qf2 Nh5 32. Rb1 Bc7 33. Ba6 Rf3 34. Qe1 Bxf4 35. Be2 Bc7 36. Bxf3 gxf3+ 37. Kf2 Qh4+ 38. Kg1 Qg5+ 39. Ng3 Nxg3 40. hxg3 Bxg3 41. Qd2 Be1+ 0-1
2023.02.28 Titled Tue 28th Feb Early
1024024 Andreev, Konstantin (2186) Koellner, Ruben Gideon (2410) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. h3 Qc7 9. Re1 Nf8 10. Bf1 g5 11. Be3 Ng6 12. Qd2 g4 13. hxg4 Bxg4 14. Nh2 Bd7 15. Bc4 h5 16. Rad1 Ng4 17. Bg5 Nxh2 18. Bxe7 Nf3+ 19. gxf3 Nxe7 20. dxe5 dxe5 21. Bxf7+ Kxf7 22. Qxd7 Qxd7 23. Rxd7 Rad8 24. Red1 Rxd7 25. Rxd7 Rb8 26. Ne2 Ke6 27. Rd3 Ng6 28. Ng3 Nf4 29. Rb3 b6 30. a5 b5 31. Rc3 h4 32. Nf5 Ne2+ 33. Kf1 Nxc3 34. bxc3 h3 35. Kg1 Rg8+ 36. Ng3 Rd8 37. Kh2 Rd2 38. Kxh3 Rxc2 39. Kg4 Rxf2 40. Nf5 Rg2+ 41. Kh3 Rc2 42. Kg4 Rxc3 43. f4 exf4 44. Kxf4 b4 45. Nd4+ Kd6 46. e5+ Kd5 47. Ne2 Rc4+ 48. Kf5 b3 49. e6 Re4 50. Nc3+ Kd4 51. Nxe4 b2 52. Nd2 Kd3 53. Nb1 Kc2 54. e7 Kxb1 55. e8=Q Ka1 56. Qe5 Ka2 57. Qe2 Ka1 58. Qe5 Ka2 59. Qe6+ Ka1 60. Qf6 Ka2 61. Qf7+ Ka1 62. Qxa7 b1=Q+ 63. Ke6 Qb5 64. a6 Qd5+ 65. Ke7 Qe5+ 66. Kd8 Qh8+ 67. Kc7 Qg7+ 68. Kb6 Qxa7+ 69. Kxa7 c5 70. Kb6 c4 71. a7 c3 72. a8=Q+ Kb2 73. Qh8 Kb3 74. Qh3 Kb2 75. Qh8 Kb3 76. Qg8+ Kb2 77. Qg7 Kb3 78. Qf7+ Ka3 79. Qe7+ Kb3 80. Qe6+ Kb2 81. Qe5 Kb3 82. Qd5+ Ka3 83. Qc4 Kb2 84. Qb4+ Kc2 85. Kc5 Kd3 86. Qc4+ Kc2 87. Kd4 1-0
2023.02.28 Titled Tue 28th Feb Late
1024281 Koellner, Ruben Gideon (2410) Chabris, C (2072) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 d5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bb6 10. b5 Ne7 11. a4 Ng6 12. Ba3 Re8 13. c4 dxc4 14. Nxc4 Bc7 15. Rc1 Nd5 16. Qc2 Bd7 17. Rfd1 Rc8 18. Qb3 Nh4 19. Nxh4 Qxh4 20. g3 Qg4 21. Bf1 Bb6 22. Nd6 Rxc1 23. Rxc1 Rb8 24. Bg2 Qe2 25. Qc4 Qd2 26. Ne4 Qa5 27. Bd6 Rd8 28. Ba3 h6 29. Nc5 Rc8 0-1
2023.02.28 Titled Tue 28th Feb Late
1024527 Estrada Nieto, J (2248) Koellner, Ruben Gideon (2410) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. Re1 h6 8. a4 Qc7 9. b3 Nf8 10. Bb2 Ng6 11. h3 O-O 12. Bd3 b6 13. Ne2 a6 14. c4 c5 15. d5 Nh5 16. Kh2 Nhf4 17. Nxf4 Nxf4 18. Bf1 f5 19. g3 fxe4 20. Rxe4 Bf5 21. Re1 Ng6 22. Bd3 Qd7 23. Kg1 Bxd3 24. Qxd3 Qxh3 25. Qxg6 Rxf3 26. Re4 Rxf2 27. Kxf2 Qh2+ 28. Kf3 Qxb2 29. Rae1 Rf8+ 30. Kg4 Qf2 31. Qe6+ Rf7 32. R4e3 Bg5 33. R3e2 Qf3+ 34. Kh3 Kh7 35. Qg4 g6 36. Qxf3 Rxf3 37. Rb1 Kg7 38. Kg2 Rc3 39. a5 bxa5 40. Ra2 h5 41. Rxa5 e4 42. Rxa6 Rc2+ 43. Kh3 e3 44. Rxd6 e2 45. Re6 Bf6 46. Re1 Bd4 47. R1xe2 Rc3 48. d6 Bf6 49. d7 Rd3 50. Rc6 h4 51. Rxc5 Rxg3+ 52. Kh2 Rxb3 53. Rd5 Rb8 54. Re8 Bd8 55. Rc5 g5 56. Rc8 Rb2+ 57. Kh3 Rb3+ 58. Kg4 Rg3+ 59. Kf5 Rf3+ 60. Ke4 Rf4+ 61. Kd5 Bf6 62. Rg8+ Kf7 63. d8=Q Rd4+ 64. Kc6 Bxd8 65. Rcxd8 Rxc4+ 66. Kb5 Rf4 67. Rdf8+ Ke6 68. Rxf4 gxf4 69. Rg4 Kf5 70. Rxh4 f3 71. Rh1 Ke4 72. Kc4 f2 73. Kc3 Ke3 74. Kc2 Ke2 75. Rh2 Ke1 76. Rh1+ f1=Q 77. Rxf1+ Kxf1 1/2-1/2
2023.02.28 Titled Tue 28th Feb Late
1024551 Koellner, Ruben Gideon (2410) Pino Perez, Lazaro (2142) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Nbd2 e6 5. Ne5 Nbd7 6. g4 Bg6 7. h4 Nxe5 8. dxe5 Ne4 9. h5 Nxd2 10. Bxd2 Be4 11. f3 Be7 12. fxe4 Bh4+ 13. Ke2 Qg5 14. Bg2 O-O-O 15. exd5 f5 16. e4 Qxg4+ 17. Bf3 1-0
2023.02.28 Titled Tue 28th Feb Late
1024738 Benaddi, M (2115) Koellner, Ruben Gideon (2410) 0-1
1. Nf3 d6 2. d4 Nf6 3. c4 g6 4. Nc3 Bf5 5. Qb3 b6 6. h3 c5 7. g4 Bd7 8. d5 Bg7 9. Bg2 h5 10. g5 Nh7 11. h4 O-O 12. Qc2 Na6 13. a3 Nc7 14. e4 b5 15. cxb5 Nxb5 16. Nxb5 Bxb5 17. Bf1 Rb8 18. Rb1 Qd7 19. Bd2 Bxf1 20. Kxf1 Qg4 21. Ke2 Rfe8 22. Rhg1 Qd7 23. Bc3 e6 24. Kf1 exd5 25. exd5 Qh3+ 0-1
2023.02.28 Titled Tue 28th Feb Late
1024987 Koellner, Ruben Gideon (2410) Alexakis, Dimitris (2472) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 a6 5. Bd3 b5 6. Ne5 Bb7 7. f4 c5 8. c3 Nc6 9. Qf3 Ne7 10. O-O Nf5 11. a4 b4 12. g4 Nd6 13. dxc5 bxc3 14. cxd6 cxd2 15. Bxd2 Bxd6 16. Bc3 O-O 17. Rfd1 Qe7 18. Qe2 Rfc8 19. g5 Ne4 20. Bxe4 dxe4 21. Ng4 Bd5 22. Kh1 Bxf4 23. exf4 e3+ 24. Kg1 Rc4 25. Qxe3 Re4 26. Qf2 Rc8 27. Rd4 Qb7 28. Rxe4 Bxe4 29. Qd4 f6 30. gxf6 h5 31. Nf2 Bd5 32. Re1 gxf6 33. Qxf6 Kh7 34. Re3 h4 35. Qxh4+ Kg6 36. Rg3+ Kf7 37. Rg7+ 1-0
2023.02.28 Titled Tue 28th Feb Late
1025109 Koellner, Ruben Gideon (2410) Pulpan, J (2422) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 b6 5. Bd3 Bb7 6. O-O cxd4 7. exd4 Be7 8. c3 O-O 9. Re1 d6 10. Qe2 Nbd7 11. a4 a6 12. Nf1 Re8 13. Ng3 Bf8 14. Bg5 h6 15. Bd2 e5 16. dxe5 dxe5 17. Ne4 Nxe4 18. Bxe4 Bxe4 19. Qxe4 Nc5 20. Qc4 Nd3 21. Re2 Nxb2 22. Qe4 Qd3 23. Rb1 Qxe4 24. Rxe4 f5 25. Rxe5 Rxe5 26. Nxe5 Nxa4 27. c4 Bd6 28. Nd7 Rd8 29. Nxb6 Nxb6 30. Rxb6 Bc7 31. Rb2 Ba5 32. Kf1 Rxd2 33. Rb8+ Kh7 34. Ra8 Rd6 35. c5 Rc6 36. Ke2 Bb4 37. f3 Bxc5 38. Kd3 Bb4 39. Kd4 a5 40. Kd5 Rc2 41. g4 fxg4 42. fxg4 Rxh2 43. Ke6 Rf2 44. Ra6 Rf6+ 45. Kd7 Rxa6 46. Ke8 a4 47. g5 hxg5 48. Kd7 a3 49. Ke8 a2 50. Kd8 a1=Q 51. Kc8 Qa5 52. Kd7 Rb6 53. Kc8 Qa7 54. Kd8 Rb8# 0-1
2023.02.28 Titled Tue 28th Feb Late
1025266 Makridis, Dimitrios (2387) Koellner, Ruben Gideon (2410) 1-0
1. Nc3 d6 2. e4 Nf6 3. d4 e5 4. Bc4 exd4 5. Qxd4 Be7 6. Nf3 Nc6 7. Qd1 O-O 8. h3 Ne5 9. Nxe5 dxe5 10. Qe2 c6 11. O-O b5 12. Bb3 a5 13. a4 b4 14. Nd1 Ba6 15. Bc4 Bxc4 16. Qxc4 Qd4 17. Ne3 Qxe4 18. b3 Qxc4 19. Nxc4 Nd5 20. Nxe5 Bf6 21. Bb2 Rfe8 22. Rfe1 Re6 23. Nc4 Bxb2 24. Nxb2 Nb6 25. Rxe6 fxe6 26. Rd1 Kf7 27. Rd6 Rc8 28. Kf1 Ke7 29. Rd4 c5 30. Rg4 Kf6 31. Rf4+ Ke7 32. Nc4 Nxc4 33. Rxc4 Kd6 34. Ke2 Rf8 35. Ke3 Rf5 36. g4 Re5+ 37. Re4 Rd5 38. Ke2 g5 39. f4 h6 40. fxg5 hxg5 41. Re3 Re5 42. Rxe5 Kxe5 43. Kf3 Kd4 44. h4 gxh4 45. g5 Ke5 46. Kg4 h3 47. Kxh3 Kf5 48. Kh4 e5 49. Kh5 e4 50. g6 Kf6 51. Kh6 e3 52. g7 Kf7 53. Kh7 e2 54. g8=Q+ Kf6 55. Qg1 Ke5 56. Qe1 Kd4 57. Qd2+ Ke4 58. Qxe2+ Kd4 59. Qc4+ Ke3 60. Kg6 Kd2 61. Kf5 Kc1 62. Ke4 Kb2 63. Kd3 Ka2 64. Qxc5 Ka1 65. Qxa5 Kb2 66. Qxb4 Ka1 67. c4 Ka2 68. Qc3 Kb1 69. Kd2 Ka2 70. Kc2 Ka3 71. c5 Ka2 72. Qb2# 1-0
2023.02.21 Baden-Baden Faschingsopen
1027466 Carlstedt, J (2437) Koellner, Ruben Gideon (2410) 1/2-1/2
1. e4 d6 2. Nf3 Nf6 3. Nc3 e5 4. Bc4 Be7 5. O-O c6 6. a4 1/2-1/2
2023.02.21 Baden-Baden Faschingsopen
1027474 Koellner, Ruben Gideon (2410) Faerber, David (2379) 1-0
1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Nc6 5. Nbd2 Qb6 6. dxc5 Qxb2 7. Rb1 Qc3 8. Bb5 g6 9. e4 dxe4 10. Be5 Qa5 11. O-O exf3 12. Bxc6+ bxc6 13. Qxf3 Nd5 14. Bxh8 Qxd2 15. c4 f6 16. Rfd1 Qc3 17. cxd5 Qxf3 18. gxf3 Bf5 19. Rb7 O-O-O 20. Rxa7 Kb8 21. Ra6 cxd5 22. Rd4 Kc7 23. Rb4 Bc8 24. Ra7+ Kc6 25. Ra8 Kd7 26. Ra7+ Kc6 27. Ra8 Kd7 28. Kf1 Bh6 29. Rh4 Bg5 30. Rxh7 Kc6 31. Ke1 d4 32. Bg7 d3 33. Bh6 Bxh6 34. Rxh6 Kb7 35. Ra3 Bf5 36. Kd2 Rd5 37. Rh4 Re5 38. Rb3+ Kc6 39. Rb2 Kxc5 40. Kc3 Re1 41. Rc4+ Kd5 42. Rb5+ Ke6 43. Rd4 Rc1+ 44. Kb4 Kf7 45. f4 e5 46. fxe5 Rb1+ 47. Ka5 Ra1 48. a4 Ra2 49. f4 fxe5 50. Rxe5 Rxh2 51. Red5 Rb2 52. Rb5 Ra2 53. Rbd5 Rb2 54. Rd6 Ke7 55. Ka6 Rb3 56. a5 Rb4 57. Ka7 Rb5 58. a6 Rb4 59. Rxb4 Kxd6 60. Kb6 1-0
2023.02.20 Baden-Baden Faschingsopen
1027448 Chernov, Va (2274) Koellner, Ruben Gideon (2410) 0-1
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 f6 6. d4 exd4 7. Qxd4 Qxd4 8. Nxd4 Bd7 9. h4 h5 10. Be3 O-O-O 11. f3 Ne7 12. Kf2 Ng6 13. Rad1 Ne5 14. b3 Bd6 15. Nf5 Bxf5 16. exf5 Nf7 17. Ne4 Be5 18. Rxd8+ Rxd8 19. g4 Rh8 20. f4 Bb2 21. g5 Nd6 22. Ng3 b6 23. Rb1 Bc3 24. Kf3 c5 25. Rd1 Kb7 26. Bd2 Bxd2 27. Rxd2 Kc6 28. Re2 Kd7 29. a4 b5 30. axb5 axb5 31. Re1 b4 32. Ra1 Nb5 33. Ne2 Re8 34. Ra5 c6 35. Ra1 Kc7 36. Rg1 Nd4+ 37. Nxd4 cxd4 38. gxf6 gxf6 39. Rg7+ Kd6 40. Rf7 Re3+ 41. Kf2 Rc3 0-1
2023.02.20 Baden-Baden Faschingsopen
1027457 Koellner, Ruben Gideon (2410) Cofman, V (2292) 1/2-1/2
1. d4 Nf6 2. Nf3 d5 3. e3 Bf5 4. Nbd2 e6 5. Ne5 h6 6. Bd3 Bxd3 7. cxd3 c5 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 O-O 11. a3 a5 12. bxa5 Rxa5 13. O-O Nc6 14. Nxc6 bxc6 15. a4 Bxh2+ 16. Kxh2 Qb8+ 17. Kg1 Qxb2 18. Nb3 Ra7 19. Nc5 Nd7 20. Nxd7 1/2-1/2
2023.02.19 Baden-Baden Faschingsopen
1027427 Heimann, An (2557) Koellner, Ruben Gideon (2410) 1-0
1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 4. c3 a6 5. Ba4 Bg7 6. d4 exd4 7. cxd4 b5 8. Bb3 Nge7 9. O-O O-O 10. d5 Na5 11. Bd2 Nxb3 12. Qxb3 c5 13. Bc3 d6 14. Bxg7 Kxg7 15. Nbd2 f6 16. Qc3 a5 17. b3 Bd7 18. a4 bxa4 19. bxa4 Qc7 20. Nc4 Rfb8 21. Rad1 Ng8 22. Ng5 Re8 23. f4 h6 24. Ne6+ Bxe6 25. dxe6 Rxe6 26. f5 gxf5 27. Nxd6 fxe4 28. Qh3 Re5 29. Nf5+ Kh8 30. Nxh6 Nxh6 31. Rxf6 Qg7 32. Rxh6+ Kg8 33. Qb3+ Kf8 34. Rf1+ Ke8 35. Qb5+ Kd8 36. Rd6+ 1-0
2023.02.19 Baden-Baden Faschingsopen
1027439 Koellner, Ruben Gideon (2410) Cernov, Henrik (2216) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. b3 Nc6 6. Bb2 Bd6 7. Bd3 O-O 8. dxc5 Bxc5 9. a3 Qe7 10. b4 Bd6 11. O-O e5 12. c4 Rd8 13. cxd5 Nxd5 14. b5 Nb8 15. Qc2 Nf6 16. Nc4 Nbd7 17. Nxd6 Qxd6 18. Rad1 Qe7 19. Nxe5 Nb6 20. Nf3 h6 21. Nd4 Bg4 22. Rc1 Rac8 23. Qb3 Qd7 24. Rxc8 Rxc8 25. Rc1 Rxc1+ 26. Bxc1 Qc7 27. Bb2 Bd7 28. h3 Qc5 29. a4 Nc8 30. Ba3 Qg5 31. Qb4 Nh7 32. Nf3 Qd5 33. Be4 Qd1+ 34. Kh2 b6 35. Nd4 Qh5 36. Nf3 Bf5 37. g4 1-0
2023.02.18 Baden-Baden Faschingsopen
1027410 Mattenberger, Matthias (2107) Koellner, Ruben Gideon (2410) 0-1
1. d4 d6 2. c4 e5 3. Nc3 exd4 4. Qxd4 Nc6 5. Qd2 Nf6 6. b3 a5 7. Bb2 a4 8. Rd1 axb3 9. axb3 g6 10. Nf3 Bg7 11. g3 O-O 12. Bg2 Bf5 13. O-O Ne4 14. Nxe4 Bxe4 15. Ra1 Rxa1 16. Rxa1 d5 17. Bxg7 Kxg7 18. Qc3+ Qf6 19. Qxf6+ Kxf6 20. cxd5 Bxd5 21. Ng5 Rd8 22. Nxh7+ Kg7 23. Ng5 Bxb3 24. Rb1 Nd4 25. Bxb7 Nxe2+ 26. Kg2 Bc2 27. Rb4 Bd3 28. Bf3 Nd4 29. Rb7 Nxf3 30. Kxf3 Rd5 31. h4 Rc5 32. Ke3 Bf5 33. Rb8 Rc3+ 34. Ke2 f6 35. g4 Bxg4+ 36. f3 fxg5 37. fxg4 gxh4 38. g5 Rc5 39. Rb4 Rxg5 40. Rxh4 Re5+ 41. Kf3 Kf6 42. Rh8 Ke6 43. Rd8 c5 44. Kf4 g5+ 45. Kg4 c4 46. Rc8 Kd5 47. Kf3 Kd4 48. Rd8+ Kc3 49. Rc8 Kd3 50. Rd8+ Kc2 51. Kf2 c3 52. Rc8 Kd2 53. Rd8+ Kc1 54. Rc8 c2 55. Rc7 Kd2 56. Rd7+ Kc3 57. Rc7+ Kd3 58. Kf1 Re4 0-1
2023.02.18 Baden-Baden Faschingsopen
1027419 Koellner, Ruben Gideon (2410) Hartmann, Martin (2192) 1-0
1. d4 Nf6 2. Nf3 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. Be2 O-O 7. O-O Bg4 8. Nd2 Bxe2 9. Qxe2 a6 10. a4 e6 11. Nc4 Qc7 12. Qd3 e5 13. f4 Nbd7 14. Nxe5 Nxe5 15. fxe5 dxe5 16. d6 Qd8 17. Bg5 h6 18. Bxf6 Bxf6 19. d7 Bg7 20. Qd5 Qc7 21. Rad1 Rad8 22. Rf3 h5 23. a5 Qxa5 24. Qxb7 Qb4 25. Qxb4 cxb4 26. Nd5 Rxd7 27. Nf6+ Bxf6 28. Rxd7 Rd8 29. Rxd8+ Bxd8 30. Rd3 Bb6+ 31. Kf1 a5 32. Rd5 Bd4 33. b3 f5 34. Rxa5 Kf7 35. Rb5 Bc3 36. exf5 gxf5 37. Rb6 Kg7 38. Ke2 h4 39. h3 f4 40. Kf3 Bd2 41. Ke4 Bc3 42. Re6 1-0
2023.02.17 Baden-Baden Faschingsopen
1027401 Koellner, Ruben Gideon (2410) Voss, Ge (1892) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c6 4. Nbd2 g6 5. c4 Bg7 6. b4 e6 7. a4 O-O 8. Bb2 Re8 9. Be2 Nbd7 10. O-O b6 11. a5 Rb8 12. a6 h5 13. Qc2 Nf8 14. cxd5 cxd5 15. Rfc1 Bd7 16. Qc7 Ra8 17. Ne5 Qxc7 18. Rxc7 Rec8 19. Rac1 Rxc7 20. Rxc7 Be8 21. b5 Ne4 22. Nxe4 Bxe5 23. dxe5 dxe4 24. Ba3 Nd7 25. f4 h4 26. Kf2 f6 27. Bc4 Kf7 28. Bd6 fxe5 29. fxe5 g5 30. g4 Kg6 31. Bxe6 Nxe5 32. Bxe5 Bxb5 33. Bf5+ 1-0
2023.02.14 Titled Tue 14th Feb Early
1035217 Koellner, Ruben Gideon (2410) Szente Varga, F (2074) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 c6 7. Bb2 Ne4 8. Nxe4 dxe4 9. Nd2 f5 10. Be2 Kh8 11. h4 h5 12. g3 Nd7 13. Qb3 Qc7 14. c5 Nf6 15. Bc4 Qd7 16. b5 Rd8 17. a4 e5 18. Rd1 Ng4 19. dxe5 Nxe5 20. Bxe5 Bxe5 21. O-O Qg7 22. Be2 Qf6 23. Nc4 Be6 24. Qc2 Bxc4 25. Qxc4 Kg7 26. Kg2 Qe7 27. a5 Rxd1 28. Rxd1 Rd8 29. Rxd8 Qxd8 30. a6 bxa6 31. bxc6 a5 32. Qe6 Qc7 33. Qd7+ Kf6 34. Bc4 Qxd7 35. cxd7 Ke7 36. c6 Bc7 37. Bb5 Kd6 38. Kf1 Kc5 39. Ba4 Kb4 40. Bd1 Kb5 0-1
2023.02.14 Titled Tue 14th Feb Early
1035358 Kalajzic, I (2062) Koellner, Ruben Gideon (2410) 0-1
1. b3 d6 2. Bb2 e5 3. e3 Nd7 4. d4 exd4 5. Qxd4 Ngf6 6. c4 Be7 7. Nc3 O-O 8. Nd5 Re8 9. Nxe7+ Qxe7 10. Nf3 Ne5 11. Be2 Bg4 12. O-O-O Nc6 13. Qf4 Bh5 14. Bxf6 gxf6 15. Nd4 Bg6 16. Nxc6 bxc6 17. h4 Qe5 18. Qxe5 fxe5 19. h5 Be4 20. Rh4 Bf5 21. Bg4 Bxg4 22. Rxg4+ Kh8 23. Rh1 Rg8 24. Rhh4 f5 25. Rxg8+ Rxg8 26. g3 Kg7 27. c5 e4 28. g4 Kf6 29. gxf5 d5 30. Rf4 Rg5 31. f3 exf3 32. Rxf3 Rxh5 33. Rf4 Rxf5 34. Ra4 Kg5 35. Rxa7 Rf7 36. a4 h5 37. Ra8 Rh7 38. a5 h4 39. a6 h3 40. a7 h2 41. Rg8+ Kf5 42. a8=Q h1=Q+ 43. Kb2 Rh2+ 44. Ka3 Qc1+ 45. Ka4 Ra2+ 46. Kb4 Qd2# 0-1
2023.02.14 Titled Tue 14th Feb Early
1035579 Koellner, Ruben Gideon (2410) Fernandez, Michael (2181) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 Nc6 5. Nbd2 Bg4 6. dxc5 e5 7. b4 e4 8. h3 Bh5 9. g4 Nxg4 10. hxg4 Bxg4 11. Qa4 Bxf3 12. Nxf3 exf3 13. Bb2 a6 14. O-O-O Qc7 15. Rxd5 Rd8 16. c4 Be7 17. Bxg7 Rg8 18. Rxh7 Bf8 19. Be5 Qe7 20. Bd6 Qf6 21. Re5+ Kd7 22. Bh3+ 1-0
2023.02.14 Titled Tue 14th Feb Early
1035967 Bazilius, Augustinas (2205) Koellner, Ruben Gideon (2410) 0-1
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. g3 Bf5 5. Bg2 c6 6. O-O Bg7 7. Nc3 Ne4 8. Nd2 Nxc3 9. bxc3 O-O 10. e4 Bc8 11. Nf3 c5 12. Be3 Nc6 13. dxc5 dxc5 14. Qxd8 Rxd8 15. Bxc5 Bxc3 16. Rad1 Be6 17. Rxd8+ Rxd8 18. Rc1 Bb4 19. Bxb4 Nxb4 20. a3 Na6 21. Bf1 Nc5 22. Ng5 Bc8 23. f3 Rd2 24. Nh3 Bxh3 25. Bxh3 Rd3 26. f4 Rxa3 27. Rd1 Rd3 28. Ra1 a6 29. e5 e6 30. Rb1 Nb3 31. Bg2 b6 32. Bf1 Rc3 33. c5 Nxc5 34. Rxb6 a5 35. Rb8+ Kg7 36. Ra8 a4 37. Bb5 a3 38. Ra7 Nd3 39. Bxd3 Rxd3 40. Ra8 Rb3 41. Kg2 Rb2+ 42. Kh3 a2 43. Kg4 Rxh2 44. Kf3 h5 45. Ke3 Rb2 46. Kf3 g5 47. fxg5 Kg6 48. Kf4 Rf2+ 49. Ke3 Rc2 50. Kf4 Rb2 51. Rg8+ Kh7 52. Ra8 Kg7 53. Kf3 Rc2 54. Kf4 Rf2+ 55. Ke3 Rc2 56. Kf4 Kg6 57. Rg8+ Kh7 58. Ra8 Rb2 59. Ra7 Kg6 60. Ra8 Rb4+ 61. Kf3 Kxg5 62. Rxa2 Rb5 63. Ra7 Rxe5 64. Rxf7 Rf5+ 65. Rxf5+ Kxf5 66. Ke3 Kg4 67. Kf2 e5 68. Kg2 e4 69. Kf2 e3+ 70. Kxe3 Kxg3 71. Ke2 Kg2 72. Ke3 h4 73. Kf4 h3 74. Kg5 h2 75. Kf5 h1=Q 76. Kf6 Qf1+ 77. Ke5 Qf3 78. Ke6 Qg4+ 79. Kd5 Qg3 80. Kc6 Qf3+ 81. Kb5 Kf2 82. Kc5 Qe3+ 83. Kb5 Ke2 84. Kc6 Qd3 85. Kb7 Qc4 86. Ka7 Qb5 87. Ka8 Kd3 88. Ka7 Kc4 89. Ka8 Kc5 0-1
2023.02.14 Titled Tue 14th Feb Early
1036065 Makarian, Rudik (2562) Koellner, Ruben Gideon (2410) 1-0
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. Qb3 b6 6. h3 c5 7. g4 Bd7 8. Bg2 Nc6 9. d5 Nd4 10. Qd1 Nxf3+ 11. exf3 Bg7 12. O-O O-O 13. f4 h5 14. g5 Ne8 15. Re1 Bh8 16. Qe2 Ng7 17. b3 Nf5 18. Bb2 Re8 19. Kh2 a6 20. a4 Rb8 21. Be4 Qc8 22. Bxf5 Bxf5 23. Qf3 b5 24. axb5 axb5 25. cxb5 Rb7 26. Re2 Bd7 27. Rae1 Kf8 28. Ne4 Bxb2 29. Rxb2 Rxb5 30. Qc3 Kg8 31. Rbe2 Rb7 32. Re3 1-0
2023.02.14 Titled Tue 14th Feb Early
1036304 Koellner, Ruben Gideon (2410) Mouhamad, J (2244) 1-0
1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Nbd2 b6 5. Bd3 Bb7 6. Ne5 Nbd7 7. f4 Be7 8. Qf3 c5 9. c3 a5 10. a4 cxd4 11. exd4 Ba6 12. Bxa6 Rxa6 13. g4 Qa8 14. g5 Ne4 15. Nxd7 Nxd2 16. Bxd2 Kxd7 17. f5 Qc6 18. O-O Rf8 19. Qh3 b5 20. Qxh7 Qc4 21. Qxg7 Qd3 22. Bf4 Qxf5 23. axb5 Qg4+ 24. Kh1 Raa8 25. Qe5 Rfc8 26. b6 Rab8 27. Rxa5 Rxb6 28. Ra7+ Ke8 29. Qh8+ Bf8 30. Qf6 Qh5 31. b4 Rbc6 32. Bd2 R6c7 33. Rxc7 Rxc7 34. Qf3 Qg6 35. Qe2 Bd6 36. Rf6 Qh7 37. Rh6 Qb1+ 38. Kg2 Ra7 39. g6 fxg6 40. Qxe6+ Be7 41. Rh8# 1-0
2023.02.14 Titled Tue 14th Feb Early
1036483 Ahmadzada, Ahmad (2487) Koellner, Ruben Gideon (2410) 1-0
1. b4 c6 2. Bb2 a5 3. a3 axb4 4. axb4 Rxa1 5. Bxa1 Qb6 6. c3 d5 7. Nf3 Nd7 8. e3 e5 9. Be2 Bd6 10. O-O Ngf6 11. d3 O-O 12. Nbd2 Qc7 13. e4 b5 14. Qc2 Bb7 15. Re1 Ra8 16. Bb2 Qb6 17. Bf1 Qc7 18. g3 c5 19. bxc5 Bxc5 20. exd5 Bxd5 21. Ne4 Nxe4 22. dxe4 Bc4 23. Bxc4 bxc4 24. Bc1 Qb6 25. Rd1 Ra7 26. Kg2 f6 27. Nh4 Qb3 28. Qe2 Qxc3 29. Nf5 Nf8 30. Be3 Bxe3 31. Nxe3 Rc7 32. Nd5 1-0
2023.02.14 Titled Tue 14th Feb Early
1036694 Koellner, Ruben Gideon (2410) Grycel, K (2315) 0-1
1. d4 b6 2. Nf3 Bb7 3. Nbd2 g6 4. e4 Bg7 5. c3 d6 6. Bc4 e6 7. Bd3 Nd7 8. O-O Ne7 9. Qe2 a6 10. Re1 h6 11. Nf1 O-O 12. Ng3 e5 13. h4 exd4 14. cxd4 Nc6 15. Be3 Nb4 16. Bb1 c5 17. d5 a5 18. a3 Na6 19. h5 Ne5 20. Nxe5 dxe5 21. Bd3 Nc7 22. Bc4 Ne8 23. a4 Nd6 24. Ra3 Bc8 25. Bb5 Ra7 26. Rb3 f5 27. Bc1 f4 28. Nf1 Qg5 29. hxg6 Rf6 30. Nh2 Rxg6 31. Qf1 Bf6 32. Re2 Kh7 33. f3 Rag7 34. Bc6 Bh3 35. Ng4 Bxg4 36. fxg4 Qxg4 37. Qf3 Qg5 38. Rxb6 Nc4 39. Rb3 Qh4 40. Rb7 Rg3 41. Rxg7+ Bxg7 0-1
2023.02.14 Titled Tue 14th Feb Late
1037373 Koellner, Ruben Gideon (2410) Fajdetic, H (2151) 0-1
1. d4 e6 2. Nf3 f5 3. Bg5 Nf6 4. Nc3 d5 5. e3 Bd6 6. Ne5 O-O 7. f4 Nbd7 8. Be2 c5 9. Nb5 Bb8 10. O-O a6 11. Na3 Qe8 12. Nxd7 Nxd7 13. c4 dxc4 14. Nxc4 b5 15. Ne5 Nxe5 16. dxe5 Bb7 17. Bf3 Qc8 18. Rc1 Bxf3 19. Qxf3 Ba7 20. Rfd1 Qc7 21. Rd6 h6 22. Bh4 Rae8 23. Rcd1 c4 24. Rxa6 Qc5 25. Bf2 Rd8 26. Rad6 Rxd6 27. exd6 Rd8 28. d7 Qc7 29. e4 Bxf2+ 30. Qxf2 Rxd7 31. Rxd7 Qxd7 32. exf5 exf5 33. h3 Qd1+ 34. Kh2 Qd3 35. a3 c3 36. bxc3 Qxc3 0-1
2023.02.14 Titled Tue 14th Feb Late
1037559 Freile Martin, J (2329) Koellner, Ruben Gideon (2410) 0-1
1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Bg5 Be7 5. e3 h6 6. Bh4 Ne4 7. Bxe7 Qxe7 8. Qc2 Nxc3 9. Qxc3 c6 10. Nf3 Nd7 11. Bd3 O-O 12. O-O Re8 13. Rfe1 dxc4 14. Bxc4 e5 15. e4 exd4 16. Nxd4 Ne5 17. Bb3 Qf6 18. Re3 Bd7 19. Rae1 Rad8 20. g3 Bh3 21. Nf3 Nxf3+ 22. Rxf3 Qxc3 23. bxc3 Re7 24. Rfe3 Rd2 25. f3 Rg2+ 26. Kh1 Rd7 27. R3e2 Rd2 28. Rxd2 Rxd2 29. Rd1 Rf2 30. Kg1 Rxf3 31. Rd8+ Kh7 32. Rd1 g6 33. c4 c5 34. e5 Re3 35. Rd5 b6 36. Kf2 Rc3 37. Rd8 Be6 38. Rf8 Rd3 39. Ra8 Rd7 40. Ke3 Kg7 41. h4 h5 42. Ke4 Rd4+ 43. Ke3 Rd7 44. Ke4 a5 45. Rb8 Rd4+ 46. Ke3 a4 47. Bxa4 Bxc4 48. Rxb6 Bxa2 49. e6 Bxe6 50. Rc6 Rxa4 51. Rxc5 Rg4 52. Kf2 Rb4 53. Rc2 Ra4 54. Ke3 Ra2 55. Rc3 Rb2 56. Kf4 Rb4+ 57. Ke5 Rg4 58. Kd6 Rb4 59. Kc5 Rb3 0-1
2023.02.14 Titled Tue 14th Feb Late
1037706 Koellner, Ruben Gideon (2410) Grot, Blazej (1862) 1-0
1. d4 d5 2. Nf3 Nf6 3. Nbd2 c6 4. e3 e6 5. Bd3 Bd6 6. O-O Qe7 7. e4 dxe4 8. Nxe4 Nxe4 9. Bxe4 Nd7 10. c3 Nf6 11. Bc2 h6 12. Re1 O-O 13. Qe2 Bd7 14. Ne5 Bxe5 15. dxe5 Nd5 16. a3 Rfd8 17. c4 Nc7 18. Qe4 f5 19. exf6 Qxf6 20. Re3 Qf5 21. g4 Qxe4 22. Bxe4 Ne8 23. h3 Nd6 24. Bd3 Rf8 25. b4 Rae8 26. Bb2 Nf7 27. Rae1 Ng5 28. Kg2 e5 29. Rxe5 Rxe5 30. Rxe5 Nxh3 31. Kg3 Ng5 32. f4 Ne6 33. f5 Ng5 34. c5 Re8 35. Bc4+ Kf8 36. Kf4 Rxe5 37. Bxe5 Nf7 38. Bb8 a6 39. a4 Ke8 40. a5 Ng5 41. Be5 Kf8 42. Bd6+ Ke8 43. Ke5 Nf7+ 44. Kd4 Nxd6 45. cxd6 h5 46. gxh5 Bxf5 47. Ke5 Bg4 48. Be6 Bxh5 49. Bc8 Kd8 50. Bxb7 c5 51. bxc5 Be8 52. c6 g5 53. c7+ Kd7 54. c8=Q# 1-0
2023.02.14 Titled Tue 14th Feb Late
1037775 Nakamura, Hi (2768) Koellner, Ruben Gideon (2410) 1-0
1. Nf3 Nf6 2. e3 d6 3. d4 Nbd7 4. c4 e5 5. Nc3 Be7 6. Bd3 O-O 7. O-O Re8 8. Bc2 exd4 9. exd4 Nf8 10. h3 Ng6 11. d5 Nd7 12. Nd4 a5 13. Be3 Nc5 14. a3 Bf6 15. b4 axb4 16. axb4 Rxa1 17. Qxa1 Na6 18. Qa3 Bd7 19. Ne4 Ne5 20. Qb3 Be7 21. f4 Ng6 22. f5 Ne5 23. f6 gxf6 24. Ng3 Kh8 25. Ndf5 Rg8 26. Kh2 Bf8 27. Bd2 c6 28. dxc6 Bxc6 29. Be4 Qb6 30. Bc3 Nc5 31. Qc2 Nxe4 32. Nxe4 Nxc4 33. Bxf6+ Bg7 34. Nxg7 Rxg7 35. Qxc4 1-0
2023.02.14 Titled Tue 14th Feb Late
1037991 Koellner, Ruben Gideon (2410) Rangel, D (2220) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 c6 7. Bb2 a5 8. b5 Bg4 9. c5 Nfd7 10. Qc2 Bxf3 11. Nxf3 Qe8 12. Be2 e5 13. O-O Qe7 14. Rfe1 e4 15. Nd2 f5 16. bxc6 bxc6 17. Nf1 Qf6 18. Rab1 f4 19. Bg4 h5 20. Bxd7 Nxd7 21. Bc1 f3 22. Rb7 Qg5 23. Ng3 Nf6 24. gxf3 h4 25. f4 Qg4 26. h3 Qxh3 27. Nf1 Qg4+ 28. Kh2 Qf3 29. Qe2 Ng4+ 30. Kg1 Qh3 31. Bd2 g5 32. Reb1 gxf4 33. Rxg7+ Kxg7 34. exf4 Rg8 35. Rb3 Ne3 36. Rxe3 Kf7+ 37. Ng3 hxg3 38. fxg3 Rxg3+ 39. Rxg3 Qxg3+ 40. Kf1 Rg8 41. Qh5+ Qg6 42. Qh2 Qg4 43. Qh7+ Rg7 44. Qh2 Qd1+ 45. Be1 Qd3+ 46. Kf2 Qf3# 0-1
2023.02.14 Titled Tue 14th Feb Late
1038080 Poeta, Caio Medeiros (2088) Koellner, Ruben Gideon (2410) 0-1
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Nfd2 f5 5. e3 Nf6 6. Nc3 c5 7. Be2 Nc6 8. Nb3 Be7 9. O-O O-O 10. f3 Re8 11. fxe4 Nxe4 12. Nxe4 fxe4 13. Bd2 cxd4 14. exd4 Bf6 15. d5 Nd4 16. Bc3 Nxb3 17. axb3 Qb6+ 18. Kh1 Bxc3 19. bxc3 Bd7 20. Qd4 Qxb3 21. Bh5 Re5 22. Bf7+ Kh8 23. Rfb1 Qc2 24. Rxb7 Bc8 25. Rbb1 e3 26. Re1 e2 27. Be6 Bxe6 28. dxe6 Rxe6 29. Rxa7 Rxa7 30. Qxa7 h6 31. Qb8+ Kh7 32. Qf8 Rf6 0-1
2023.02.14 Titled Tue 14th Feb Late
1038228 Koellner, Ruben Gideon (2410) Womacka, M (2409) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 Nc6 5. Bd3 d5 6. c3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 Qc7 11. a3 b6 12. c4 dxc4 13. Nxc4 Be7 14. Rc1 Rd8 15. Nce5 Bb7 16. b5 Bc5 17. bxc6 Bxc6 18. Nxc6 Qxc6 19. Bxf6 gxf6 20. Nd4 Qd5 21. Qg4+ Qg5 22. Qh3 f5 23. Qf3 Bxa3 24. Rc7 Bc5 25. Bc4 Bxd4 26. exd4 Rac8 27. Rxc8 Rxc8 28. Bb3 a5 29. d5 e5 30. d6 e4 31. Qd1 Rd8 32. Qd5 Qf6 33. d7 Kg7 34. Ba4 Qe7 35. Qxf5 1-0
2023.02.14 Titled Tue 14th Feb Late
1038377 Koellner, Ruben Gideon (2410) Ehlvest, J (2530) 0-1
1. d4 Nf6 2. Nf3 c5 3. e3 g6 4. Nbd2 b6 5. c3 Bg7 6. Bd3 O-O 7. O-O Bb7 8. Qe2 d6 9. e4 e6 10. a3 Nbd7 11. b4 a6 12. Bb2 Qc7 13. Rfe1 Rfd8 14. Rad1 b5 15. Nf1 Rac8 16. Ng3 cxd4 17. cxd4 Nb6 18. Rc1 Qb8 19. Nd2 h5 20. f3 h4 21. Ngf1 Nh5 22. g3 Na4 23. Ba1 Qa7 24. Qe3 Kh7 25. f4 Nf6 26. Kg2 Ng4 27. Qg1 f5 28. h3 Nf6 29. Qe3 Qa8 30. Rxc8 Rxc8 31. Kh2 hxg3+ 32. Nxg3 Nc3 33. Rg1 Ncxe4 34. Ngxe4 fxe4 35. Be2 Rc2 36. Bd1 Ra2 37. Bb3 Rxa3 38. Bb2 Rxb3 39. Nxb3 Bd5 40. Nd2 Qe8 41. Qg3 Nh5 42. Qg5 Bh6 43. Qg2 Bxf4+ 44. Kh1 Ng3+ 45. Kh2 Ne2+ 46. Kh1 e3 47. Nf3 Ng3+ 48. Kh2 Nf5+ 49. Kh1 Nh4 0-1
2023.02.14 Titled Tue 14th Feb Late
1038475 Drnovsek, G (2397) Koellner, Ruben Gideon (2410) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. g4 h6 6. Rg1 c6 7. h4 exd4 8. Nxd4 Ne5 9. g5 hxg5 10. hxg5 Nfg4 11. Be2 Nh2 12. Bf4 Qb6 13. Bxe5 dxe5 14. Nb3 Rh3 15. g6 fxg6 16. Qd2 Nf3+ 17. Bxf3 Rxf3 18. O-O-O Rf6 19. f4 exf4 20. e5 Rf7 21. Kb1 Bf5 22. e6 Re7 23. Qxf4 Rd8 24. Rxd8+ Qxd8 25. Nd4 Qc7 26. Qf3 Qb6 27. Nce2 c5 28. Nxf5 gxf5 29. Qxf5 Qxe6 30. Qh5+ Qf7 31. Qh2 Qe6 32. Qb8+ Kf7 33. Rf1+ Kg6 34. Qxf8 Qxe2 35. Rg1+ Kh5 36. Qh8# 1-0
2023.02.14 Titled Tue 14th Feb Late
1038555 Forgacs, Attila Jr. (2219) Koellner, Ruben Gideon (2410) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 c6 6. g4 h6 7. Be3 b5 8. a3 Qa5 9. Nd2 Bb7 10. Nb3 Qc7 11. Qd2 a6 12. h4 c5 13. dxc5 dxc5 14. g5 hxg5 15. hxg5 Nxe4 16. Nxe4 Bxe4 17. O-O-O O-O-O 18. f4 c4 19. Na5 Bc5 20. b4 cxb3 21. Bxc5 Nxc5 22. Qb4 Rxd1+ 23. Kxd1 bxc2+ 24. Kc1 Qxa5 25. Qxc5+ Qc7 26. Qe3 Bf5 27. fxe5 Kb8 28. Bd3 Bxd3 29. Qxd3 Rc8 30. Rf1 Qxe5 31. Qb3 Qa1+ 32. Kd2 c1=Q+ 33. Rxc1 Qxc1+ 34. Kd3 Qc4+ 35. Qxc4 Rxc4 36. g6 fxg6 37. a4 Rxa4 0-1
2023.02.14 Titled Tue 14th Feb Late
1038693 Koellner, Ruben Gideon (2410) Bazilius, Augustinas (2205) 0-1
1. d4 Nf6 2. Nf3 c5 3. e3 cxd4 4. exd4 g6 5. Nbd2 Bg7 6. c3 O-O 7. Bd3 d5 8. O-O Nc6 9. Re1 Nd7 10. Nf1 e5 11. dxe5 Ndxe5 12. Nxe5 Nxe5 13. Be2 Nc6 14. Be3 d4 15. cxd4 Nxd4 16. Bc4 b6 17. Rc1 Bb7 18. Qg4 Nf5 19. Bg5 Qd4 20. Qxd4 Nxd4 21. Re7 Bc6 22. Be3 Nf5 23. Rc7 Be4 24. b3 Be5 25. Rd7 Nd6 26. Re7 Bb2 27. Rd1 Nxc4 28. Rxe4 Nxe3 29. Nxe3 Rfd8 30. Rxd8+ Rxd8 31. g4 Kg7 32. Re7 a5 33. Rb7 Bd4 34. Nc4 Bc5 35. g5 Rd5 36. h4 Rf5 37. Nxb6 Bxf2+ 38. Kg2 Bxh4 39. Nc4 Bxg5 40. Ra7 Bd8 41. Ra8 Rd5 42. Kf3 h5 43. Ke4 Rd1 44. Nxa5 Bxa5 45. Rxa5 Rf1 46. b4 h4 47. Ra3 g5 48. Rf3 f5+ 49. Ke3 f4+ 50. Ke4 Rxf3 51. Kxf3 Kf6 52. b5 Ke6 53. Kg4 Kd6 54. a4 Kc5 55. Kf3 h3 56. Kf2 g4 57. Kg1 f3 0-1
2023.02.07 Titled Tue 7th Feb Early
1042143 Topalov, A (2233) Koellner, Ruben Gideon (2410) 0-1
1. b3 d6 2. Bb2 e5 3. d4 e4 4. d5 f5 5. e3 Nf6 6. Ne2 Be7 7. Nf4 O-O 8. h4 c6 9. Nc3 c5 10. Be2 a6 11. a4 Re8 12. Ne6 Bxe6 13. dxe6 d5 14. a5 Nc6 15. g3 Qd6 16. Qd2 Rad8 17. Na4 Qxe6 18. Kf1 Kh8 19. h5 h6 20. Qc3 d4 21. Qc4 Qxc4 22. Bxc4 Nxa5 23. Bf7 Rf8 24. Bg6 Nc6 25. Nb6 Nb4 26. Bxf5 dxe3 27. Ke2 Nxc2 28. Rac1 Rd2+ 0-1
2023.02.07 Titled Tue 7th Feb Early
1042430 Koellner, Ruben Gideon (2410) Simonovic, M (2115) 1-0
1. d4 Nf6 2. Nf3 c5 3. d5 b5 4. e4 Nxe4 5. Bd3 Nd6 6. a4 c4 7. Be2 Bb7 8. axb5 g6 9. Qd4 f6 10. Nc3 Bg7 11. Bf4 Nf7 12. Qxc4 O-O 13. O-O d6 14. Nd4 Qd7 15. Nc6 Rc8 16. Qe4 Ne5 17. Bxe5 fxe5 18. Bg4 Qc7 19. Bxc8 Bxc8 20. Qe3 Nxc6 21. bxc6 a6 22. Na4 Rb8 23. Ra3 Qa5 24. Nc3 Qb4 25. Rb3 Qxb3 26. cxb3 Rxb3 27. Qa7 Kf7 28. Qc7 Bf5 29. Qd8 Rxb2 30. c7 e4 31. c8=Q Bxc8 32. Qxc8 Rc2 33. Qe6+ Kf8 34. Nxe4 Re2 35. Ng5 Rxe6 36. Nxe6+ Kf7 37. Nxg7 Kxg7 38. Ra1 Kf6 39. Rxa6 Ke5 40. Ra7 Kxd5 41. Rxe7 Kc4 42. Rxh7 d5 43. Rh6 d4 44. Rxg6 d3 45. Rd6 Kc3 46. h4 d2 47. h5 Kc2 48. h6 d1=Q+ 49. Rxd1 Kxd1 50. h7 Ke2 51. h8=Q Kd3 52. Qe5 1-0
2023.02.07 Titled Tue 7th Feb Early
1042770 Gokerkan, Cem Kaan (2486) Koellner, Ruben Gideon (2410) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 c6 6. g4 h6 7. h4 exd4 8. Nxd4 Ne5 9. g5 hxg5 10. hxg5 Nfg4 11. f3 Nh2 12. Be2 Qb6 13. Be3 Rh3 14. Qd2 Qxd4 15. Qxd4 Nhxf3+ 16. Kf2 Nxd4 17. Bxd4 Be6 18. Rh1 Rxh1 19. Rxh1 b6 20. Ba6 Rd8 21. a4 Kd7 22. Be2 Be7 23. Rh7 Bxg5 24. Rxg7 Bf6 25. Rh7 Ng4+ 26. Bxg4 Bxd4+ 27. Kf3 Bxg4+ 28. Kxg4 Be5 29. Rxf7+ Ke6 30. Rxa7 Rg8+ 31. Kf3 Rg3+ 32. Kf2 Rh3 33. Rb7 Bd4+ 34. Ke2 Bxc3 35. bxc3 Rxc3 36. Kd2 Rc4 37. Rxb6 Rxa4 38. Rxc6 Rxe4 39. Rc8 Kd5 40. Rh8 Re5 41. Kd3 Rg5 42. c4+ Kc5 43. Rc8+ Kb6 44. Kd4 Kb7 45. Rf8 Kc6 46. Rf4 Rh5 47. Rg4 Rf5 48. Rh4 Rg5 49. Rf4 Rh5 50. Rf8 Rh4+ 51. Kc3 Rh1 52. Rc8+ Kd7 53. Rg8 Kc6 54. Rg2 Rc1+ 55. Kb3 Rb1+ 56. Kc2 Rh1 57. Rg8 Kc5 58. Rc8+ Kd4 59. Rc6 Rh6 60. Kb3 Rg6 61. Kb4 Ke5 62. Rc8 Rg1 63. Kc3 Rc1+ 64. Kd3 Rd1+ 65. Kc3 Rc1+ 66. Kd2 Ra1 67. Kc2 Rh1 68. Kb3 Rb1+ 69. Kc3 Rc1+ 1/2-1/2
2023.02.07 Titled Tue 7th Feb Early
1042823 Koellner, Ruben Gideon (2410) Samunenkov, Ihor (2485) 0-1
1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Nbd2 c5 5. c3 Nbd7 6. Bd3 Bd6 7. O-O O-O 8. Qe2 e5 9. dxe5 Nxe5 10. Nxe5 Bxe5 11. e4 Re8 12. f4 dxe4 13. Nxe4 Bg4 14. Qc2 Bc7 15. h3 c4 16. Nxf6+ Qxf6 17. Bxh7+ Kh8 18. hxg4 Bb6+ 19. Be3 Bxe3+ 20. Rf2 g6 21. g3 Kxh7 22. Kg2 Bxf2 23. Qxf2 Qc6+ 0-1
2023.02.07 Titled Tue 7th Feb Early
1043139 Koellner, Ruben Gideon (2410) Jakubowska, Anna (2139) 1/2-1/2
1. d4 f5 2. Bg5 g6 3. e3 Bg7 4. h4 d6 5. Nc3 Nc6 6. Bc4 h6 7. Bf4 e5 8. dxe5 dxe5 9. Qxd8+ Nxd8 10. Bg3 Be6 11. Bxe6 Nxe6 12. Nf3 e4 13. Ne5 Ne7 14. O-O-O g5 15. hxg5 hxg5 16. Rxh8+ Bxh8 17. Rh1 Bf6 18. Rh6 Ng8 19. Rg6 O-O-O 20. Nf7 Rf8 21. Nd5 Rxf7 22. Rxg8+ Kd7 23. Ra8 a6 24. Rb8 Kc6 25. Nb4+ Kb6 26. Nd5+ Kc6 27. Nxf6 Rxf6 28. Be5 Rf8 29. Rxf8 Nxf8 30. Kd2 Ne6 31. b3 Kd5 32. Bb2 b5 33. Bf6 f4 34. Ke2 g4 35. Bc3 f3+ 36. gxf3 gxf3+ 37. Kd2 c5 38. Bf6 Nc7 39. Bh4 Ne8 40. Bg5 Nd6 41. Bf4 Nf5 42. Kc3 Ne7 43. Kd2 Ng6 44. Bg3 Ne7 45. Kc3 Ng6 46. Kd2 Ne7 47. Kc3 Ng6 48. Kd2 1/2-1/2
2023.02.07 Titled Tue 7th Feb Early
1043238 Podetti, Davide (2291) Koellner, Ruben Gideon (2410) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Qe2 Qc7 9. Rd1 Nf8 10. dxe5 dxe5 11. Nh4 g6 12. f4 exf4 13. e5 Ng4 14. Nf3 Bc5+ 15. Kf1 Ne3+ 16. Bxe3 Bxe3 17. Ne4 Be6 18. Nf6+ Ke7 19. Bxe6 Nxe6 20. Rd7+ Qxd7 21. Nxd7 Kxd7 22. Rd1+ Ke7 23. g3 g5 24. gxf4 gxf4 25. Nh4 Rad8 26. Nf5+ Ke8 27. Rxd8+ Kxd8 28. Qd3+ Kc8 29. Qd6 Nc7 30. Qf6 Rg8 31. Ne7+ 1-0
2023.02.07 Titled Tue 7th Feb Early
1043419 Vagman, Roy (2285) Koellner, Ruben Gideon (2410) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. f3 Bd6 9. Be3 Ke7 10. O-O-O Nc6 11. Nb1 a6 12. c3 b5 13. Ne2 Rhb8 14. a3 a5 15. b4 axb4 16. axb4 Ra2 17. Rd2 Rba8 18. Rxa2 Rxa2 19. Rd1 Rxe2 20. Rd3 Rxg2 21. Nd2 Rxh2 22. Nb3 Nd7 23. Na5 Nxa5 24. bxa5 Ra2 25. Bg5+ Nf6 26. f4 exf4 27. c4 bxc4 0-1
2023.02.07 Titled Tue 7th Feb Early
1043639 Koellner, Ruben Gideon (2410) Jaskolka, T (2238) 0-1
1. d4 d5 2. Nf3 Nc6 3. e3 Bg4 4. Bb5 Nf6 5. h3 Bxf3 6. Qxf3 e6 7. O-O Bd6 8. Nd2 O-O 9. c3 e5 10. e4 exd4 11. Bxc6 bxc6 12. cxd4 dxe4 13. Nxe4 Nxe4 14. Qxe4 c5 15. dxc5 Bxc5 16. Bf4 Re8 17. Qc6 Bb6 18. Rad1 Qh4 19. Qf3 Rad8 20. Bg3 Qb4 21. b3 h6 22. Rxd8 Rxd8 23. Rd1 Rxd1+ 24. Qxd1 Qa3 25. Qd8+ Kh7 26. Bxc7 Qc1+ 27. Kh2 Bxc7+ 28. Qxc7 Qxc7+ 0-1
2023.02.07 Titled Tue 7th Feb Late
1044389 Fajdetic, H (2151) Koellner, Ruben Gideon (2410) 0-1
1. d4 d6 2. Nc3 Nf6 3. e4 e5 4. Nge2 Nc6 5. f3 exd4 6. Nxd4 d5 7. Bb5 Qd6 8. exd5 Nxd5 9. Nxc6 Nxc3 10. Qxd6 Bxd6 11. bxc3 a6 12. Ba4 Bd7 13. O-O Bxc6 14. Re1+ Kd7 15. Bb3 Rhe8 16. Bg5 f6 17. Bh4 Rxe1+ 18. Rxe1 Re8 19. Rxe8 Kxe8 20. Kf2 Be5 21. c4 Ke7 22. h3 Kd6 23. Ke2 Kc5 24. Be1 b6 25. Kd3 Bd7 26. a3 Bf5+ 27. Ke2 a5 28. g4 Bg6 29. Bf2+ Bd4 30. Bg3 c6 31. Bc7 Bb2 32. a4 Be5 33. Bd8 Bd6 34. Ke3 h6 35. f4 Bf7 36. g5 hxg5 37. fxg5 fxg5 38. Bxg5 Bxc4 39. Kd2 Bxb3 40. cxb3 Kd5 41. Kd3 b5 42. Bd8 Bb4 43. h4 bxa4 44. bxa4 c5 45. h5 c4+ 46. Kc2 Ke6 47. Bg5 Kf5 48. Bc1 Kg4 49. h6 gxh6 50. Bxh6 Kf5 51. Bd2 Bxd2 52. Kxd2 Ke4 53. Kc3 Kd5 54. Kc2 Kd4 55. Kb2 Kd3 56. Ka3 c3 57. Ka2 c2 58. Kb2 Kd2 59. Ka2 c1=Q 0-1
2023.02.07 Titled Tue 7th Feb Late
1044440 Koellner, Ruben Gideon (2410) Bortnyk, Olexandr (2605) 0-1
1. d4 d6 2. e4 Nf6 3. Nd2 e5 4. dxe5 dxe5 5. Ngf3 Bg4 6. h3 Bxf3 7. Qxf3 Bc5 8. Bc4 O-O 9. O-O Nbd7 10. Qe2 c6 11. a4 a5 12. Nf3 Nh5 13. Kh2 Qf6 14. g3 Qe7 15. Kg2 Nhf6 16. Bg5 h6 17. Bd2 Rfd8 18. Rad1 Nf8 19. Nh4 Ne6 20. Nf5 Qe8 21. c3 Rd7 22. Qf3 Rad8 23. Bxh6 Rxd1 24. Rxd1 Rxd1 25. Bxe6 fxe6 26. Nxg7 Qg6 27. Qxd1 Qxh6 28. Nxe6 Be7 0-1
2023.02.07 Titled Tue 7th Feb Late
1044633 Becerra, J (2383) Koellner, Ruben Gideon (2410) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nge2 Nc6 5. h3 exd4 6. Nxd4 Be7 7. g4 O-O 8. Bg2 Re8 9. Nxc6 bxc6 10. g5 Nd7 11. h4 Ne5 12. O-O Bg4 13. Qe1 Nf3+ 14. Bxf3 Bxf3 15. Qe3 Bh5 16. f4 d5 17. Qg3 Bc5+ 18. Kh2 dxe4 19. Be3 Bxe3 20. Qxe3 Qd7 21. Nxe4 Qd5 22. Rae1 Bg6 23. f5 Bxf5 24. Nc3 Rxe3 25. Nxd5 Rxe1 26. Rxe1 cxd5 27. Re7 Rc8 28. c3 Be6 0-1
2023.02.07 Titled Tue 7th Feb Late
1044888 Koellner, Ruben Gideon (2410) Sarkar, J (2331) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. c3 e6 5. Nbd2 b6 6. Ne5 Bb7 7. f4 Nbd7 8. Bd3 Be7 9. Qf3 O-O 10. O-O Ne8 11. Qh3 g6 12. Qh6 f5 13. g4 Nxe5 14. fxe5 fxg4 15. Rxf8+ Bxf8 16. Qf4 Qh4 17. Nf1 Bh6 18. Qf2 Qxf2+ 19. Kxf2 Ng7 20. Kg3 Rf8 21. Bd2 Nf5+ 22. Kxg4 cxd4 23. exd4 Bxd2 24. Nxd2 Ne3+ 25. Kg3 Nf5+ 26. Bxf5 Rxf5 27. Rf1 Rxf1 28. Nxf1 g5 29. h4 h6 30. hxg5 hxg5 31. Kg4 Ba6 32. Ne3 Bd3 33. Kxg5 Kf7 34. Kh6 a5 35. Ng4 b5 36. Nf2 Bc2 37. Nh3 b4 38. Ng5+ 1-0
2023.02.07 Titled Tue 7th Feb Late
1044981 Pichot, A (2638) Koellner, Ruben Gideon (2410) 1-0
1. Nf3 Nf6 2. b3 d6 3. Bb2 e5 4. c4 Nbd7 5. g3 Be7 6. Bg2 c6 7. O-O O-O 8. Nc3 Re8 9. d3 Qc7 10. Nd2 Nf8 11. Rc1 Be6 12. b4 a5 13. b5 N6d7 14. a4 Nc5 15. Nb3 Nxb3 16. Qxb3 c5 17. b6 Qd7 18. Qb5 Qxb5 19. Nxb5 Rab8 20. Bc3 Bd7 21. Bxa5 Rec8 22. Bc3 Bc6 23. Na7 Re8 24. Bxc6 bxc6 25. a5 Bg5 26. e3 d5 27. Nxc6 Ra8 28. cxd5 Nd7 29. Kh1 1-0
2023.02.07 Titled Tue 7th Feb Late
1045259 Koellner, Ruben Gideon (2410) Grot, Blazej (1862) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c6 4. Nbd2 e6 5. Bd3 Bd6 6. O-O Qe7 7. e4 dxe4 8. Nxe4 Nxe4 9. Bxe4 Nd7 10. c3 h6 11. Re1 Nf6 12. Bc2 O-O 13. Qe2 b6 14. Ne5 Bb7 15. Nc4 Bc7 16. Be3 Nd5 17. Bd2 c5 18. dxc5 Qxc5 19. Ne5 Nf6 20. Bf4 Rad8 21. Rad1 Nd5 22. Bg3 Nf6 23. Bb3 Bd5 24. Nd3 Qe7 25. Nb4 Bxb3 26. axb3 Rxd1 27. Rxd1 Bxg3 28. hxg3 Rd8 29. Nc6 Rxd1+ 30. Qxd1 Qc7 31. Qd8+ Qxd8 32. Nxd8 Ne4 33. Nc6 a5 34. b4 axb4 35. Nxb4 Kf8 36. Kf1 Nd2+ 37. Ke2 Nc4 38. Nd3 Ke7 39. b3 Na5 40. Nc1 Kd6 41. Kd3 Nb7 42. Kc4 Nc5 43. Kb5 Ne4 44. Kxb6 Nxc3 45. Nd3 Nd5+ 46. Ka6 e5 47. f3 f5 48. Kb5 e4 49. fxe4 fxe4 50. Ne1 e3 51. Kc4 Ke5 52. Kd3 g5 53. Nc2 h5 54. Nxe3 Nb4+ 55. Kc4 Nc6 56. Kd3 Nb4+ 57. Kd2 Nc6 58. Nc4+ Ke4 59. Nd6+ Ke5 60. Nf7+ Kf6 61. Nd6 Ke5 62. Nb5 Kf5 63. Kd3 Kg4 64. Nd4 Ne5+ 65. Ke4 Nd7 66. Ne2 Nc5+ 67. Ke5 Nxb3 68. Ke4 Nd2+ 69. Ke3 Nf1+ 70. Kf2 Nd2 71. Nc3 Ne4+ 72. Nxe4 Kf5 73. Nd2 Kg4 74. Nf3 h4 75. gxh4 gxh4 76. Ng1 Kf4 77. Nh3+ Kg4 78. Kf1 Kg3 79. Kg1 Kg4 80. Kf2 Kh5 81. Kf3 Kg6 82. Kg4 Kh6 83. Kxh4 Kg6 84. g4 Kh7 85. g5 Kg7 86. Kg4 Kh7 87. Nf4 Kg7 88. Kf5 Kg8 89. g6 Kf8 90. Kf6 Kg8 91. Ne6 1-0
2023.02.07 Titled Tue 7th Feb Late
1045341 Riehle, Marco (2341) Koellner, Ruben Gideon (2410) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. f3 e5 4. d5 Be7 5. Be3 h6 6. Qd2 Nh5 7. Ne2 Bg5 8. g3 Bxe3 9. Qxe3 Qg5 10. f4 exf4 11. gxf4 Qh4+ 12. Kd2 Nd7 13. Qh3 Qxh3 14. Bxh3 Nc5 15. Bxc8 Rxc8 16. Nbc3 O-O 17. b4 Nd7 18. Rhf1 Rfe8 19. Ng3 Nhf6 20. Rae1 g6 21. e5 dxe5 22. fxe5 Ng4 23. e6 fxe6 24. dxe6 Nde5 25. Kc1 Rxe6 26. h3 Nh2 27. Rf2 Nd3+ 28. cxd3 Rxe1+ 29. Kc2 Re3 30. Nce4 Nf3 31. Nf1 Ne1+ 32. Kd2 Rxd3+ 33. Kxe1 Rxh3 34. Kd2 Rd8+ 35. Kc2 Rhd3 36. Nc3 R3d4 37. a3 Rf8 38. Rd2 Rxd2+ 39. Nxd2 h5 40. Nce4 h4 41. Ng5 Rf5 42. Nh3 g5 43. Kd3 g4 44. Ng1 h3 45. Ne2 Rf2 46. Ng3 Rg2 47. Nde4 h2 48. Nh1 Rg1 49. Neg3 Kf7 50. Ke3 b6 51. Kf4 c5 52. bxc5 bxc5 53. Kxg4 c4 54. Kh3 c3 55. Kxh2 Re1 56. Nf2 c2 57. Nd3 c1=Q 58. Nxe1 Qxe1 59. a4 Qf2+ 60. Kh3 Qa2 61. a5 Qxa5 62. Kg2 Qd2+ 63. Kh3 Qe3 64. Kg2 a5 65. Kh2 a4 66. Kg2 Qxg3+ 67. Kh1 a3 1/2-1/2
2023.02.07 Titled Tue 7th Feb Late
1045505 Koellner, Ruben Gideon (2410) Yanchenko, R (2466) 0-1
1. d4 d5 2. Nf3 Bf5 3. e3 e6 4. Nbd2 Nf6 5. Ne5 Nbd7 6. g4 Nxe5 7. gxf5 Ned7 8. fxe6 fxe6 9. Bh3 Qe7 10. f4 Qf7 11. Qf3 Bd6 12. Rg1 c6 13. e4 Bf8 14. e5 Nh5 15. f5 exf5 16. Qxf5 Qxf5 17. Bxf5 g6 18. Bg4 Be7 19. Bxh5 gxh5 20. Nf3 Nf8 21. Bg5 Ne6 22. Be3 Kd7 23. Ke2 Raf8 24. c3 Rfg8 25. Rxg8 Rxg8 26. Rg1 Rg4 27. h3 Rg6 28. Kf2 Ng7 29. Bg5 Ne6 30. Bxe7 Kxe7 31. Rh1 Rg8 32. Rh2 a5 33. b3 b5 34. Rg2 Rg6 35. Nh4 Rxg2+ 36. Nxg2 Kf7 37. Ke3 Ng5 38. h4 Ne4 39. c4 Nc3 40. cxd5 Nxd5+ 41. Ke4 Nc3+ 42. Kf5 Nxa2 43. Nf4 Nb4 44. Ne2 a4 45. bxa4 bxa4 46. Nc1 a3 47. Nb3 a2 48. Na1 Nd5 49. Nc2 Ne3+ 50. Nxe3 a1=Q 0-1
2023.01.31 Titled Tue 31st Jan Early
1052084 Koellner, Ruben Gideon (2417) Ruiz Aguilar, P (2161) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c6 4. Nbd2 Bg4 5. h3 Bh5 6. g4 Bg6 7. Ne5 e6 8. h4 h6 9. Nxg6 fxg6 10. Bd3 Kf7 11. Qf3 Bd6 12. g5 hxg5 13. hxg5 Rxh1+ 14. Qxh1 Nh5 15. Qf3+ Nf6 16. gxf6 gxf6 17. Qh3 Qg8 18. Nf3 Nd7 19. Bd2 Qg7 20. O-O-O Rh8 21. Qg2 g5 22. Rh1 Rxh1+ 23. Qxh1 g4 24. Qh5+ Ke7 25. Nh4 Nf8 26. e4 dxe4 27. Bxe4 g3 28. fxg3 Qxg3 29. c3 Bf4 30. Nf3 Bxd2+ 31. Nxd2 f5 32. Bf3 Ng6 33. Qh7+ Kf6 34. Qxb7 Nh4 35. Qxc6 1-0
2023.01.31 Titled Tue 31st Jan Early
1052429 Caruana, F (2766) Koellner, Ruben Gideon (2417) 1/2-1/2
1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Nbd7 8. Nge2 h6 9. Bh4 Nh5 10. Bxe7 Qxe7 11. O-O O-O 12. Nc1 Nhf6 13. Nb3 Re8 14. Qd2 a5 15. a4 Qb4 16. Qc2 Nb6 17. Rfe1 Be6 18. f3 Nc4 19. Bxc4 dxc4 20. Nc5 Nd5 21. e4 Nf6 22. Rad1 Rad8 23. Qf2 Nd7 24. Nxe6 fxe6 25. Rd2 Nf8 26. h4 Rd7 27. Red1 Red8 28. e5 Ng6 29. Ne4 Rd5 30. Qg3 Kh7 31. h5 Ne7 32. Qg4 Nf5 33. Qg6+ Kh8 34. Qxe6 Nxd4 35. Qg4 Nxf3+ 36. Qxf3 Rxd2 37. Rxd2 Rxd2 38. Nxd2 Qxd2 39. Qf8+ Kh7 40. Qf5+ Kh8 41. Kh2 Qd5 42. Kg3 Qd3+ 43. Qxd3 cxd3 44. Kf3 Kg8 45. Ke3 Kf7 46. Kxd3 Ke6 47. Ke4 b5 48. g4 bxa4 49. Kd4 c5+ 50. Ke4 c4 51. Kd4 a3 52. bxa3 c3 53. Kxc3 Kxe5 54. Kc4 Kf4 55. Kb5 Kxg4 56. Kxa5 Kxh5 57. Kb4 g5 58. a4 g4 59. a5 g3 60. a6 g2 61. a7 g1=Q 62. a8=Q Qg4+ 63. Kc3 Kh4 64. Kd2 h5 65. Ke3 Qg3+ 66. Qf3 Kh3 67. Ke2 h4 68. Qh1+ Kg4 69. Qe4+ Kg5 70. Qd5+ Kg4 71. Qe4+ Kh3 72. Qh1+ Qh2+ 73. Qxh2+ Kxh2 74. Kf1 h3 75. Kf2 Kh1 76. Kf1 h2 77. Kf2 1/2-1/2
2023.01.31 Titled Tue 31st Jan Early
1052520 Anton Guijarro, D (2679) Koellner, Ruben Gideon (2417) 1-0
1. Nf3 d6 2. d4 Nf6 3. Nc3 Nbd7 4. e4 e5 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. a5 Qc7 9. dxe5 dxe5 10. Nh4 g6 11. Nf3 Nf8 12. Qe2 g5 13. Rd1 Ng6 14. Nd2 Nf4 15. Qe1 h5 16. Nf1 Be6 17. Ne3 h4 18. Bxe6 fxe6 19. Nc4 Kf7 20. Be3 Ng4 21. h3 Nf6 22. Bxf4 gxf4 23. Nd2 Nh7 24. Nf3 Ng5 25. Nxg5+ Bxg5 26. Qe2 Be7 27. Nb1 Rad8 28. Rxd8 Rxd8 29. Nd2 Rd4 30. c3 Rd8 31. Qh5+ Kg7 32. Nf3 Qd6 33. Nxe5 1-0
2023.01.31 Titled Tue 31st Jan Early
1052830 Koellner, Ruben Gideon (2417) Vovk, Or (2315) 1-0
1. d4 h6 2. Nf3 g5 3. e4 Bg7 4. c3 d5 5. e5 c5 6. h3 Nc6 7. Be3 g4 8. hxg4 Bxg4 9. Be2 Qb6 10. Qb3 c4 11. Qxb6 axb6 12. Na3 Ra5 13. Nc2 Bf5 14. Kd2 e6 15. a3 Ra8 16. Nb4 Na5 17. Bd1 Ne7 18. Bc2 Bxc2 19. Kxc2 Nf5 20. Bf4 Nb3 21. Rag1 Bf8 22. g4 Ne7 23. Nd2 Ng6 24. Be3 Nxd2 25. Bxd2 Kd7 26. Rh5 Ne7 27. Rgh1 Rg8 28. f3 Nc6 29. Bxh6 Nxb4+ 30. axb4 Bxh6 31. Rxh6 Ke7 32. Rh7 Rg6 33. Rh8 Rgg8 34. Rxg8 Rxg8 35. Rh7 Ke8 36. Kd2 Ke7 37. Ke3 b5 38. Kf4 Ra8 39. Kg5 Ra2 40. Rh2 Ra1 41. f4 Rg1 42. Rf2 Rg3 43. f5 exf5 44. Kxf5 Rg1 45. Kg5 Rb1 46. Re2 Rf1 47. Rh2 Rb1 48. Rf2 Re1 49. Rf6 Rb1 50. Rb6 Rxb2 51. Rxb7+ Kf8 52. Rxb5 Rb3 53. Rxd5 Rxc3 54. Rc5 Rc1 55. d5 c3 56. d6 c2 57. Rc8+ Kg7 58. d7 Rd1 59. Rxc2 Rxd7 60. Rc5 Rb7 61. b5 Rb6 62. Kf5 Rb8 63. Ke4 Rd8 64. b6 Rd1 65. Rb5 Re1+ 66. Kd5 Rb1 67. Rxb1 1-0
2023.01.31 Titled Tue 31st Jan Early
1053010 Koellner, Ruben Gideon (2417) Predke, A (2684) 0-1
1. d4 Nc6 2. Nf3 d6 3. e4 e5 4. dxe5 Nxe5 5. Nxe5 dxe5 6. Qxd8+ Kxd8 7. Be3 Be6 8. Nd2 Bd6 9. Bc4 Ke7 10. Bxe6 Kxe6 11. Nc4 b5 12. Nd2 Nf6 13. f3 Nd7 14. Ke2 Nb6 15. b3 a5 16. Bxb6 cxb6 17. a4 Rhc8 18. c4 bxa4 19. Rxa4 Bb4 20. Rd1 b5 21. Ra2 Bxd2 22. Raxd2 bxc4 23. Rd6+ Ke7 24. Rd7+ Ke8 25. bxc4 Rxc4 26. R7d5 f6 27. Rd7 Rc2+ 28. Kf1 Rc1 29. Rd8+ Rxd8 30. Rxc1 a4 31. Rc7 Ra8 32. Rxg7 Ra6 33. Rc7 a3 34. Rc1 Kd7 35. Ke2 a2 36. Ra1 Kc6 37. Kd3 Kc5 38. Kc3 Ra8 39. h4 h6 40. Kb3 Kd4 41. g4 Ke3 42. g5 fxg5 43. hxg5 hxg5 44. Kb2 Kxf3 45. Rf1+ Kxe4 46. Ka1 g4 47. Rg1 Kf3 48. Rf1+ Kg2 49. Rf5 g3 50. Rxe5 Kf3 51. Rf5+ Kg4 52. Rf7 g2 53. Rg7+ Kf3 54. Rf7+ Ke2 55. Re7+ Kf1 56. Rf7+ Kg1 57. Rg7 Rf8 58. Kxa2 Kf2 0-1
2023.01.31 Titled Tue 31st Jan Early
1053220 Kalogeris, I (2409) Koellner, Ruben Gideon (2417) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. O-O h6 8. Re1 Qc7 9. a5 Nf8 10. d5 Ng6 11. a6 b5 12. Bd3 b4 13. Nb1 c5 14. c3 Rb8 15. cxb4 Rxb4 16. Bd2 Rxb2 17. Ba5 Qd7 18. Nc3 O-O 19. Rb1 Rxb1 20. Qxb1 Nf4 21. Bb5 Qg4 22. g3 Nh3+ 23. Kg2 Nf4+ 24. Kg1 Qxf3 25. gxf4 Qxf4 26. Qd3 Nh5 27. Re3 Bh4 28. Rf3 Qg5+ 29. Kf1 Nf4 30. Qe3 Qg2+ 31. Ke1 Bg4 32. Rg3 Bxg3 33. hxg3 Qg1+ 34. Kd2 Ng2 35. Qd3 Qxf2+ 36. Kc1 Ne3 37. Bc7 Qe1+ 38. Kb2 Nd1+ 39. Nxd1 Bxd1 40. Bxd6 Qb4+ 41. Kc1 Bb3 42. Bxf8 Kxf8 43. d6 Qe1+ 44. Kb2 Qb4 45. d7 Be6+ 46. Kc1 Bxd7 47. Qxd7 Qc3+ 48. Kd1 g6 49. Qd6+ Kg7 50. Bd3 Qd4 51. Qxd4 cxd4 52. Kc2 Kf6 53. Kb3 Ke6 54. Bc4+ Ke7 55. Kb4 f5 56. Bd3 f4 57. gxf4 exf4 58. Kc4 g5 59. Kxd4 g4 60. e5 h5 61. Ke4 f3 62. Kf4 Ke6 63. Bc4+ Ke7 64. Kg3 Kd7 65. Bb3 Ke7 66. Bc4 Kd7 67. Bb3 Ke7 68. Bc2 Ke6 69. Bg6 Kxe5 70. Bxh5 Kd4 71. Bxg4 f2 72. Kxf2 Kc5 73. Ke2 Kb6 74. Bc8 Kc7 75. Bb7 Kb8 76. Kd3 Kc7 77. Kc4 Kb8 78. Kb4 Kc7 79. Ka5 Kb8 80. Be4 Kc7 81. Kb5 Kb8 82. Kc5 Kc7 83. Bd3 Kb8 84. Bc4 Kc7 85. Kd5 Kb8 86. Kd6 Kc8 87. Bb5 Kb8 88. Kc6 Ka8 89. Bc4 Kb8 90. Be6 Ka8 91. Bc8 Kb8 92. Bb7 1/2-1/2
2023.01.31 Titled Tue 31st Jan Early
1053365 Ronka, E (2277) Koellner, Ruben Gideon (2417) 1-0
1. e4 d6 2. d4 Nf6 3. f3 e5 4. Ne2 Nbd7 5. c4 Be7 6. Nbc3 h6 7. Be3 Nh7 8. Qd2 Bg5 9. h4 Bxe3 10. Qxe3 c6 11. O-O-O Qa5 12. g4 Nhf8 13. Bh3 Qb6 14. g5 hxg5 15. hxg5 Ng6 16. Bf5 Rxh1 17. Rxh1 Ndf8 18. c5 dxc5 19. dxc5 Qc7 20. Bxc8 Rxc8 21. Ng3 Ne7 22. Nf5 Nxf5 23. exf5 Qe7 24. Ne4 Rd8 25. Nd6+ Kd7 26. Nxb7 Rb8 27. Nd6 Kc7 28. f4 f6 29. gxf6 gxf6 30. fxe5 Qxe5 31. Qxe5 fxe5 32. Kc2 Rb4 33. a3 Rf4 34. Rh8 Rf2+ 35. Kb3 Rf3+ 36. Ka2 e4 37. Rxf8 e3 38. Re8 Kd7 39. Re4 a5 40. f6 Rxf6 41. Rxe3 Rh6 42. Rc3 Rh4 43. Rc4 Rh5 44. b4 a4 45. Kb2 Rh2+ 46. Rc2 Rh3 47. Nc4 Rb3+ 48. Ka2 Kc7 49. Nb6 Rh3 50. Nxa4 Kb7 51. Nc3 Ka6 52. Kb3 Rh4 53. a4 Rh6 54. b5+ Ka5 55. Rd2 Rh3 56. Kc4 1-0
2023.01.31 Titled Tue 31st Jan Early
1053414 Koellner, Ruben Gideon (2417) Gottstein, C (2113) 1-0
1. d4 d5 2. Nf3 Bf5 3. e3 e6 4. Ne5 Nd7 5. g4 Bg6 6. h4 Nxe5 7. dxe5 h5 8. g5 Ne7 9. Bd3 Bxd3 10. cxd3 g6 11. O-O Nf5 12. f4 Nxh4 13. e4 dxe4 14. dxe4 Qxd1 15. Rxd1 Rd8 16. Rxd8+ Kxd8 17. Kf2 Bc5+ 18. Kg3 Nf5+ 19. exf5 exf5 20. Nc3 c6 21. Bd2 Ke7 22. Rd1 Rd8 23. Bc1 Rxd1 24. Nxd1 Ke6 25. Be3 Kd5 26. Bxc5 Kxc5 27. Kf3 Kc4 28. Ne3+ Kd3 29. Ng2 c5 30. Nh4 c4 31. Nxg6 b5 32. Ne7 b4 33. Nd5 c3 34. bxc3 bxc3 35. Nxc3 Kxc3 36. e6 1-0
2023.01.31 Titled Tue 31st Jan Early
1053665 Kochiev, Ivan (2046) Koellner, Ruben Gideon (2417) 1-0
1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. c3 Nbd7 5. f4 d5 6. fxe5 Nxe4 7. Nf3 Be7 8. O-O O-O 9. Nbd2 f5 10. exf6 Ndxf6 11. Ne5 Bd6 12. Ndf3 c6 13. Be3 Ng4 14. Nxg4 Bxg4 15. Bxe4 dxe4 16. Qb3+ Kh8 17. Ng5 h6 18. Nf7+ Rxf7 19. Rxf7 Qh4 20. Bf4 Bxf4 21. Rxf4 Qg5 22. Qxb7 Qxf4 23. Qxa8+ Kh7 24. Qxc6 Qe3+ 25. Kh1 Qf4 26. Re1 e3 27. Qc4 Qf2 28. Qf1 Qd2 29. h3 Bh5 30. Qg1 e2 31. Qf2 Qxb2 32. d5 Qd2 33. g4 Bg6 34. Qxe2 Qxd5+ 35. Kh2 Qc5 36. Qe3 Qc4 37. h4 Qxa2+ 38. Re2 Qc4 39. h5 Bd3 40. Rd2 Be4 41. Rd4 Qa2+ 42. Qd2 Qe6 43. Qf4 Bc2 44. Rd2 1-0
2023.01.31 Titled Tue 31st Jan Early
1053850 Koellner, Ruben Gideon (2417) Girya, O (2402) 0-1
1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Nbd2 Be7 5. Bd3 O-O 6. O-O Nbd7 7. Ne5 Nxe5 8. dxe5 Nd7 9. f4 Nc5 10. Qh5 Nxd3 11. cxd3 b6 12. Rf3 Ba6 13. e4 dxe4 14. Rh3 h6 15. Rg3 Kh8 16. Nxe4 Bxd3 17. f5 Bxe4 18. Bxh6 g6 19. Qe2 Bxf5 20. Rf1 Qd4+ 21. Kh1 Rfd8 22. h3 Qe4 23. Qxe4 Bxe4 24. Rxf7 Bc5 25. Rg4 Rd1+ 26. Kh2 Bg1+ 27. Kg3 Rd3+ 28. Kh4 Bf5 29. Rc4 c5 30. g4 Rad8 31. gxf5 gxf5 32. Kg5 Be3+ 33. Kg6 Bxh6 34. Kxh6 Rxh3+ 35. Kg6 Rg8+ 36. Kf6 Rh6+ 37. Ke7 Rg7 38. Rxg7 Kxg7 39. Rc2 Rg6 40. Rd2 f4 41. Rf2 Rg4 42. Kxe6 Kg6 43. Kd6 Kf5 44. e6 Rg6 45. Re2 f3 46. Re1 Kf4 47. Kd7 f2 48. Rf1 Ke3 49. e7 Rg8 50. e8=Q+ Rxe8 51. Kxe8 Ke2 52. Rh1 f1=Q 53. Rxf1 Kxf1 54. Kd7 Ke2 55. Kc6 Kd3 56. Kb7 Kc2 57. Kxa7 Kxb2 58. Kxb6 c4 59. a4 c3 60. a5 c2 61. a6 c1=Q 62. Kb7 Qh1+ 63. Kb8 Qh8+ 64. Kb7 Qg7+ 65. Kb8 Qf8+ 66. Kb7 Qe7+ 67. Kb8 Qd8+ 68. Kb7 Qd7+ 69. Kb8 Qd6+ 70. Kb7 Qb4+ 71. Ka8 Qc5 72. Kb8 Qb6+ 73. Ka8 Qxa6+ 74. Kb8 Qb6+ 0-1
2023.01.31 Titled Tue 31st Jan Early
1053891 Koellner, Ruben Gideon (2417) Torres Dominguez, D (1998) 1-0
1. d4 e5 2. dxe5 d6 3. Nf3 Bg4 4. Bf4 Nc6 5. Nc3 Bxf3 6. exf3 dxe5 7. Be3 Qxd1+ 8. Rxd1 a6 9. Nd5 Bd6 10. Bd3 O-O-O 11. Bf5+ Kb8 12. O-O Nge7 13. Nxe7 Nxe7 14. Bd3 f6 15. g3 h6 16. h4 g5 17. h5 Nc6 18. Be4 Ne7 19. g4 c6 20. Rd3 Bc7 21. Rfd1 Rxd3 22. Rxd3 Rd8 23. Rxd8+ Bxd8 24. Kf1 Nc8 25. Bc5 Be7 26. Be3 Kc7 27. Ke2 Nd6 28. Kd3 b6 29. c4 Nb7 30. Bf5 Nc5+ 31. Bxc5 Bxc5 32. Ke4 Kd6 33. Bc8 a5 34. Kf5 Ke7 35. Kg6 Bxf2 36. Kxh6 Kf7 37. Bb7 b5 38. Bxc6 bxc4 39. Bd5+ Kf8 40. Bxc4 Bd4 41. b3 e4 42. fxe4 Be5 43. Kg6 Bd4 44. h6 Bc3 45. h7 f5 46. exf5 Bh8 47. f6 Ke8 48. a3 Kf8 49. b4 axb4 50. axb4 Ke8 51. b5 1-0
2023.01.31 Titled Tue 31st Jan Late
1054066 Koellner, Ruben Gideon (2417) Rose, F (2091) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. Nbd2 e6 5. c3 Be7 6. Bd3 Nbd7 7. O-O b6 8. Ne5 Bb7 9. f4 Ne4 10. Nxe4 dxe4 11. Bb5 Bc8 12. Bc6 Rb8 13. Bxe4 Bb7 14. Bxb7 Rxb7 15. Qf3 Qc8 16. e4 cxd4 17. cxd4 Rc7 18. Be3 O-O 19. Rac1 Nxe5 20. fxe5 Rc2 21. Qd1 Rc4 22. Qd3 Rc6 23. Rxc6 Qxc6 24. d5 Qa4 25. d6 Bd8 26. a3 f5 27. exf5 exf5 28. Qd5+ Kh8 29. e6 f4 30. e7 1-0
2023.01.31 Titled Tue 31st Jan Late
1054333 Tang, Andrew (2531) Koellner, Ruben Gideon (2417) 1-0
1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. Nc3 a6 5. dxc5 Nc6 6. a3 e5 7. Bg5 d4 8. Ne4 Bf5 9. Bd3 Bxe4 10. Bxe4 Bxc5 11. b4 Be7 12. Bxf6 Bxf6 13. Qf3 O-O 14. Ne2 Rc8 15. O-O g6 16. Rad1 Bg7 17. c3 f5 18. Bd5+ Kh8 19. Bxc6 Rxc6 20. cxd4 Qe7 21. dxe5 Bxe5 22. Nf4 Bxf4 23. Qxf4 Qc7 24. Qd4+ Qg7 25. Qd5 Rfc8 26. g3 h6 27. Rd3 Kh7 28. Rfd1 R8c7 29. h4 h5 30. Kg2 Rc2 31. Qf3 Qe7 32. Rd8 R2c6 33. R1d4 Qf7 34. Qf4 Qg7 35. R4d5 Rc4 36. Qf3 Qe7 37. Qd1 Qe4+ 38. Kh2 Rc1 39. R5d7+ 1-0
2023.01.31 Titled Tue 31st Jan Late
1054525 Danielyan, Vahe (2307) Koellner, Ruben Gideon (2417) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 c6 6. g4 h6 7. g5 hxg5 8. Bxg5 exd4 9. Qxd4 Qb6 10. O-O-O Qxd4 11. Rxd4 Ne5 12. Nxe5 dxe5 13. Rd2 Rxh2 14. Bc4 Be6 15. Bxe6 fxe6 16. a3 Rd8 17. Rxd8+ Kxd8 18. Be3 b6 19. b4 Ke8 20. Kb2 Kf7 21. Kb3 Rh4 22. Rd1 Ke8 23. f3 Rh3 24. Rf1 Nh5 25. a4 Nf4 26. a5 bxa5 27. bxa5 a6 28. Kc4 g5 29. Nd1 Rh7 30. Nf2 Rb7 31. Bb6 Rd7 32. Ng4 Bg7 33. Kc5 Rd2 34. Kxc6 Rxc2+ 35. Kb7 Nd3 36. Kxa6 Ra2 37. Kb7 Rb2 38. Rd1 Nc5+ 39. Kc6 Na4 40. Rd8+ Ke7 41. Rd7+ Kf8 42. Bc7 Rc2+ 43. Kb5 Nc5 44. Bd6+ Ke8 45. Re7+ Kd8 46. Bxc5 Rxc5+ 47. Kxc5 Bf8 48. a6 Bxe7+ 49. Kc6 Kc8 50. a7 1-0
2023.01.31 Titled Tue 31st Jan Late
1054672 Fernandez, Maria (2181) Koellner, Ruben Gideon (2417) 0-1
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Nfd2 f5 5. e3 Nf6 6. Be2 c5 7. d5 Nbd7 8. O-O Ne5 9. Nc3 g6 10. f3 exf3 11. Nxf3 Nxf3+ 12. Bxf3 Bg7 13. e4 O-O 14. Bg5 h6 15. Bd2 g5 16. Qc2 f4 17. Be2 Nd7 18. Bg4 Ne5 19. Bxc8 Qxc8 20. Nb5 Qd7 21. Bc3 a6 22. Na3 Rae8 23. Nb1 Nxc4 24. Bxg7 Ne3 25. Qc3 Qxg7 26. Qxg7+ Kxg7 27. Rf2 Rxe4 28. Nc3 Re5 29. Re1 Rfe8 30. Rfe2 Kf6 31. g3 f3 32. Rf2 g4 33. Rc1 Nxd5 34. Nxd5+ Rxd5 35. Rcf1 Re3 36. Rc2 Rde5 37. Rcf2 Re2 38. h3 h5 39. hxg4 hxg4 40. Rd1 Rxf2 41. Kxf2 Re2+ 42. Kf1 Ke5 43. b3 Rxa2 44. Re1+ Re2 45. Rc1 b6 46. Rc4 Re4 47. Rc3 d5 48. Rc2 Re2 0-1
2023.01.31 Titled Tue 31st Jan Late
1054842 Koellner, Ruben Gideon (2417) Grycel, K (2315) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 b6 5. c3 Bb7 6. Bd3 cxd4 7. exd4 Be7 8. O-O O-O 9. Qe2 Nd5 10. Ne4 f5 11. Ng3 Nc6 12. Re1 Rc8 13. a3 Qc7 14. c4 Nf4 15. Bxf4 Qxf4 16. d5 Nd8 17. Ne5 Rc7 18. Rad1 Bd6 19. b3 Bxa3 20. Bb1 Bb4 21. Nd3 Qd6 22. Nxb4 Qxb4 23. Qe3 f4 24. Qd3 g6 25. Ne4 exd5 26. cxd5 Nf7 27. Nf6+ Kg7 28. Ng4 Qc3 29. Qe4 Nd6 30. Qe7+ Nf7 31. d6 Rcc8 32. Qxd7 Qc6 33. Qe7 Qxg2# 0-1
2023.01.31 Titled Tue 31st Jan Late
1055034 Koellner, Ruben Gideon (2417) Buchenau, F (2218) 1-0
1. d4 e6 2. Nf3 Nf6 3. Nbd2 c5 4. e3 b6 5. c3 Bb7 6. Bd3 d5 7. Ne5 Be7 8. f4 O-O 9. Qf3 a5 10. g4 Ba6 11. Bc2 Ne8 12. g5 Nd6 13. Qh3 Nf5 14. Bxf5 exf5 15. Qxf5 Qc8 16. Qxc8 Rxc8 17. Ndf3 Nc6 18. Nxc6 Rxc6 19. Ne5 Re6 20. f5 Rd6 21. h4 f6 22. Nf3 Bd3 23. b3 Bxf5 24. Ba3 Re6 25. Kd2 Re8 26. Rhf1 Bh3 27. Rfe1 cxd4 28. Bxe7 dxc3+ 29. Kxc3 R8xe7 30. Kd2 Bg4 31. Nd4 Re4 32. gxf6 gxf6 33. Rac1 h5 34. Rc6 f5 35. Rxb6 f4 36. Nc2 f3 37. Rf1 Rc7 38. Nd4 Rce7 39. Nxf3 Rxe3 40. Ng5 Re2+ 41. Kc3 1-0
2023.01.31 Titled Tue 31st Jan Late
1055142 Koellner, Ruben Gideon (2417) Papayan, O (2253) 1-0
1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. Nbd2 Nc6 5. c3 h6 6. dxc5 e5 7. b4 e4 8. Nd4 Ne5 9. Bb2 Be7 10. c4 Bg4 11. Qa4+ Bd7 12. Qb3 dxc4 13. Nxc4 Nd3+ 14. Bxd3 exd3 15. Qxd3 O-O 16. O-O Nd5 17. a3 Bf6 18. Rfd1 Ba4 19. Rd2 Qc7 20. Nd6 a6 21. N4f5 Bc6 22. Bxf6 Nxf6 23. Qd4 Qd8 24. Rad1 g6 25. Nxh6+ Kh7 26. Nhxf7 Qe7 27. Qh4+ Kg7 28. Qh6+ Kg8 29. Qh8# 1-0
2023.01.31 Titled Tue 31st Jan Late
1055285 Bambino Filho, A (2144) Koellner, Ruben Gideon (2417) 0-1
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Be2 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. Bf1 Nf8 10. h3 g5 11. Nh2 Ng6 12. d5 cxd5 13. Bb5+ Kf8 14. Nxd5 Nxd5 15. exd5 Kg7 16. Qh5 f5 17. g4 Qxc2 18. Be3 a6 19. Rac1 Qxb2 20. Bd3 e4 21. Rc7 Qf6 22. gxf5 Bxf5 23. Ng4 Bxg4 24. hxg4 exd3 25. Rxe7+ Qxe7 26. Bd4+ Ne5 27. f4 d2 28. Rf1 gxf4 0-1
2023.01.31 Titled Tue 31st Jan Late
1055467 Pakleza, Z (2496) Koellner, Ruben Gideon (2417) 1/2-1/2
1. d4 d6 2. Nf3 Nf6 3. Bf4 g6 4. h3 Bg7 5. e3 O-O 6. Be2 Nc6 7. c4 Re8 8. Nc3 Bf5 9. O-O e5 10. Bh2 exd4 11. exd4 Ne4 12. Nd5 Nf6 13. Ne3 Bd7 14. Re1 Ne7 15. Bd3 Qc8 16. Qc2 Nc6 17. a3 Nh5 18. Nd5 Nf6 19. Rxe8+ Bxe8 20. Nc3 Nh5 21. d5 Nd4 22. Nxd4 Bxd4 23. Re1 Bd7 24. Ne4 Qf8 25. b4 Re8 26. Re2 Nf6 27. Nxf6+ Bxf6 28. Bf4 Rxe2 29. Qxe2 Qe7 30. Qxe7 Bxe7 31. Be3 b6 32. Bd4 f5 33. g3 Kf7 34. f4 Bf6 35. Bxf6 Kxf6 36. Kf2 Ba4 37. Ke3 Bd1 38. Kd4 h6 39. h4 Bf3 40. c5 Bd1 41. Kc4 Ba4 42. Kd4 h5 43. Ba6 Ke7 44. Bc8 Kd8 45. Be6 Ke7 46. Bc8 Bb5 47. Be6 Ba6 48. Bg8 Bc8 49. c6 Kf8 50. Bh7 Kg7 51. Bxg6 Kxg6 52. b5 a6 53. a4 axb5 54. axb5 Kf6 55. Kc4 Be6 56. Kd4 Ke7 57. Kc4 Kf7 58. Kd4 Bxd5 59. Kxd5 Ke7 60. Kd4 Ke6 61. Kc4 d5+ 62. Kd3 Kd6 63. Kd4 Ke6 64. Kd3 Ke7 65. Ke3 Kf6 66. Kd3 Ke7 67. Ke3 Ke6 68. Kd3 1/2-1/2
2023.01.31 Titled Tue 31st Jan Late
1055503 Baskakov, Egor (2215) Koellner, Ruben Gideon (2417) 1-0
1. e4 d6 2. g3 e5 3. Bg2 Nf6 4. Ne2 c5 5. c3 Nc6 6. d4 cxd4 7. cxd4 Qb6 8. d5 Nd4 9. Nxd4 exd4 10. O-O Bg4 11. Qa4+ Bd7 12. Qa3 Rc8 13. Nd2 Be7 14. Nb3 Rc4 15. Qa5 O-O 16. Qxb6 axb6 17. Rd1 Ng4 18. Bf4 g5 19. Bd2 Ne5 20. f4 Bg4 21. fxe5 Bxd1 22. exd6 Bxd6 23. Rxd1 f6 24. Bf1 Rc2 25. Nxd4 Bc5 26. Bc3 Ra8 27. Bd3 1-0
2023.01.24 Titled Tue 24th Jan Late
1058960 Koellner, Ruben Gideon (2417) Nebel, J (2212) 1-0
1. d4 Nf6 2. Nf3 c5 3. e3 e6 4. Nbd2 cxd4 5. exd4 d5 6. c3 Bd6 7. Bd3 O-O 8. O-O b6 9. Qe2 a5 10. a4 Ba6 11. Bxa6 Nxa6 12. Ne5 Qc7 13. f4 Nd7 14. Ndf3 Nab8 15. Bd2 Nc6 16. Rae1 Rae8 17. Qb5 Rc8 18. Qe2 Nf6 19. Bc1 Ne4 20. Nd2 f5 21. Nxe4 dxe4 22. Qb5 Bxe5 23. fxe5 Ne7 24. Bd2 Nd5 25. g3 Qc6 26. Qxc6 Rxc6 27. Kf2 Rb8 28. Ra1 Kf7 29. Ke2 Kg6 30. Rfc1 Rbc8 31. Rg1 Kf7 32. Raf1 Ke7 33. g4 g6 34. gxf5 exf5 35. h4 Rf8 36. h5 f4 37. Rg4 e3 38. Bc1 Rf5 39. hxg6 Rxg6 40. Rxg6 hxg6 41. c4 Nb4 42. Kf3 Nd3 43. Rd1 Nf2 44. Rg1 g5 45. Bxe3 fxe3+ 46. Kxe3 g4 47. Rg2 Rf3+ 48. Ke2 Nh3 49. Rxg4 Rb3 50. Rg7+ Ke6 51. Rg6+ Kf5 52. Rh6 Ke4 53. Rh4+ Nf4+ 54. Kd2 Rxb2+ 55. Kc3 Rb4 56. e6 Rxa4 57. e7 Ke3 58. e8=Q+ Kf3 59. Rxf4+ Kxf4 60. Qxa4 1-0
2023.01.24 Titled Tue 24th Jan Late
1059070 Koellner, Ruben Gideon (2417) Bluebaum, M (2661) 1/2-1/2
1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Nbd2 c5 5. b3 Nc6 6. Bb2 cxd4 7. exd4 g6 8. Bd3 Bg7 9. O-O O-O 10. a3 b6 11. Ne5 Bb7 12. Qe2 Qc7 13. f4 Rac8 14. g4 Nd7 15. Rae1 Rce8 16. g5 Ne7 17. Ndf3 Nf5 18. Qf2 f6 19. Nxd7 Qxd7 20. Bxf5 exf5 21. Rxe8 Rxe8 22. gxf6 Bxf6 23. Ne5 Qc7 24. Re1 b5 25. Qd2 Qb6 26. Kg2 Bxe5 27. Rxe5 Rxe5 28. fxe5 Qc7 29. c3 Qe7 30. Bc1 Qh4 31. Qe2 Bc6 32. Bd2 f4 33. e6 Qg5+ 34. Kf2 Qh4+ 35. Kg2 Kf8 36. Qe5 Qg4+ 37. Kf2 Qh4+ 38. Kg2 Qg4+ 39. Kf2 Qh4+ 40. Kf1 Qh3+ 41. Ke1 Qh4+ 42. Kd1 Qh5+ 43. Qxh5 gxh5 44. Bxf4 Ke7 45. Kd2 Kxe6 46. Ke3 Kf5 47. Bb8 a6 48. Bc7 Bd7 49. Bb8 Kg4 50. Bc7 Bf5 51. Bd6 Bc2 52. b4 Bb3 53. Bc7 Bc4 54. Bd6 Kh3 55. Kf2 Bd3 56. Be5 Bc4 57. Bd6 Bd3 58. Be5 Bc4 59. Bd6 1/2-1/2
2023.01.24 Titled Tue 24th Jan Late
1059287 Andreikin, D (2729) Koellner, Ruben Gideon (2417) 1/2-1/2
1. d4 d6 2. c4 e5 3. Nc3 exd4 4. Qxd4 Nc6 5. Qd2 g6 6. b3 Bh6 7. e3 Nf6 8. Bb2 O-O 9. Nf3 Re8 10. Be2 Bf5 11. O-O Bg7 12. Rac1 Ne4 13. Nxe4 Bxe4 14. Rfd1 Qe7 15. Bxg7 Kxg7 16. Qc3+ Qf6 17. Nd2 Qxc3 18. Rxc3 Rad8 19. Nxe4 Rxe4 20. Bf3 Re5 21. Rd5 Ne7 22. Rd2 b6 23. g3 a5 24. a3 h5 25. h4 Ng8 26. b4 Nf6 27. c5 axb4 28. axb4 bxc5 29. bxc5 Ne4 30. Bxe4 Rxe4 31. cxd6 cxd6 32. Rc7 Re6 33. Rd4 Rf6 34. Kg2 Re8 35. Rd7 Ree6 36. Rd8 Kh7 37. e4 Kg7 38. f4 Re7 39. Kf3 Ree6 40. Rd5 Kh7 41. Ke3 Kg7 42. Rd4 Kh7 43. Kd3 Kg7 44. Kc4 Re7 45. Kd3 Ra7 46. Ke3 Ra3+ 47. Rd3 Ra6 48. Rd7 Re6 49. Kf3 Ra4 50. Re3 Rd4 51. Ra7 Rd1 52. Rc3 Rd4 53. Rcc7 Rf6 54. Re7 Rd3+ 55. Kf2 Rd2+ 56. Ke3 Rb2 57. Re8 Rb3+ 58. Kf2 Rb2+ 59. Kf3 Rb3+ 60. Kg2 Rb2+ 61. Kh3 Rb3 62. Kh2 Rb2+ 63. Kg1 Rb1+ 64. Kf2 Rb2+ 65. Ke1 Rb1+ 66. Ke2 Rb2+ 67. Kf3 Rb3+ 68. Kf2 Rb2+ 1/2-1/2
2023.01.24 Titled Tue 24th Jan Late
1059436 Gasparyan, David (2092) Koellner, Ruben Gideon (2417) 1-0
1. e4 d6 2. Nc3 Nf6 3. Nf3 e5 4. Bc4 Be7 5. d3 c6 6. h3 O-O 7. Bb3 b5 8. Ne2 Nbd7 9. Be3 Qc7 10. g4 Nc5 11. Ng3 a5 12. c3 Nxb3 13. axb3 Rd8 14. g5 Nd7 15. Nf5 Bf8 16. O-O Nc5 17. b4 Ne6 18. bxa5 Rxa5 19. Rxa5 Qxa5 20. Qa1 Qc7 21. d4 Bb7 22. b3 Ra8 23. Qb2 exd4 24. cxd4 d5 25. exd5 cxd5 26. Rc1 Qd7 27. Ne5 Qd8 28. Qe2 Ba6 29. h4 Rc8 30. Nc6 Qd7 31. Ne5 Rxc1+ 32. Bxc1 Qc7 33. Bd2 Qc2 34. g6 Qxf5 35. gxf7+ Kh8 36. Bg5 Nxg5 37. hxg5 Qxg5+ 38. Kf1 Qf6 39. Qc2 b4+ 40. Ke1 Qe7 41. Qc6 Bd3 42. Qxd5 Bg6 43. Kd2 Bf5 44. Qg2 Be6 45. Ng6+ hxg6 46. Qh1+ Qh4 47. Qxh4# 1-0
2023.01.24 Titled Tue 24th Jan Late
1059563 Koellner, Ruben Gideon (2417) Hajiyev, K (2153) 1-0
1. d4 d5 2. Nf3 c5 3. e3 cxd4 4. exd4 Nc6 5. c3 Bg4 6. Nbd2 e6 7. Bb5 a6 8. Bxc6+ bxc6 9. Qa4 Ne7 10. Ne5 Bf5 11. g4 Bg6 12. h4 h5 13. Nxg6 fxg6 14. Nf3 hxg4 15. Ne5 Qb6 16. Qc2 Nf5 17. Nxg6 Rh5 18. Bg5 Bd6 19. O-O-O Rb8 20. Rde1 Kd7 21. b3 Re8 22. Rxe6 Nxd4 23. Rxd6+ Kxd6 24. cxd4 Rxg5 25. Qc5+ Qxc5+ 26. dxc5+ Kxc5 27. hxg5 Re2 28. Rg1 Rxf2 29. Rxg4 Rxa2 30. Nf4 Kd4 31. Ne6+ Kc3 32. Rg3+ Kb4 33. Nxg7 d4 34. Ne6 Re2 35. Nxd4 Re8 36. g6 c5 37. Nc6+ Ka3 38. g7 Rg8 39. Ne7 Rxg7 40. Rxg7 a5 41. Kc2 a4 42. bxa4 Kxa4 43. Kc3 Kb5 44. Rg5 Ka5 45. Rxc5+ Kb6 46. Kd4 Kb7 47. Rc6 Ka7 48. Kc5 Kb7 49. Kb5 Kb8 50. Kb6 Ka8 51. Rc8# 1-0
2023.01.24 Titled Tue 24th Jan Late
1059742 Koellner, Ruben Gideon (2417) Novikov, E (2276) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 Qc7 5. Nbd2 Bf5 6. Nh4 Bd7 7. Bd3 e6 8. O-O g5 9. Nhf3 Rg8 10. Ne5 Nc6 11. Nxd7 Kxd7 12. dxc5 Bxc5 13. e4 Rad8 14. Qf3 Be7 15. exd5 Nxd5 16. Qxf7 Rdf8 17. Qh5 Nf4 18. Qf3 Ne5 19. Bb5+ Kc8 20. Qe4 Ng4 21. Nf3 h5 22. Bxf4 gxf4 23. Qxe6+ Kb8 24. Rae1 Bc5 25. h3 a6 26. Bc4 Rg7 27. Bd5 Ka7 28. Ne5 Nxe5 29. Qxe5 Bd6 30. Qd4+ Bc5 31. Qe5 Bd6 32. Qe2 f3 33. Bxf3 Qf7 34. Qe3+ Kb8 35. Kh1 Bc7 36. Be4 Qf6 37. g3 Qd6 38. Bg2 Qd7 39. Rd1 Qc8 40. Qe4 Rgf7 41. Rd2 h4 42. Qxh4 Rg7 43. Qe4 Rgf7 44. Re2 Rg8 45. Rd1 Rfg7 46. Rd3 Rh8 47. h4 Rgh7 48. Kg1 Bd8 49. Qf3 Qc7 50. Qd5 Bxh4 51. gxh4 Rxh4 52. Qe5 1-0
2023.01.24 Titled Tue 24th Jan Late
1059798 Indjic, A (2641) Koellner, Ruben Gideon (2417) 1-0
1. e4 d6 2. Nc3 Nf6 3. f4 e5 4. Bc4 exf4 5. d3 Bg4 6. Nf3 Nh5 7. O-O g6 8. g3 Nc6 9. gxf4 Qd7 10. d4 Bg7 11. Be3 f5 12. e5 dxe5 13. dxe5 O-O-O 14. Qxd7+ Kxd7 15. Ng5 Na5 16. Be6+ Kc6 17. h3 Ng3 18. hxg4 Nxf1 19. Rxf1 Rhe8 20. gxf5 h6 21. Nf7 gxf5 22. Nxd8+ Rxd8 23. Bxf5 1-0
2023.01.24 Titled Tue 24th Jan Late
1060027 Koellner, Ruben Gideon (2417) Kim, Se (2295) 1/2-1/2
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 c6 6. Bb3 O-O 7. O-O Qc7 8. Qe2 e5 9. dxe5 dxe5 10. c3 a5 11. a4 Nbd7 12. Rd1 Nc5 13. Bc4 h6 14. b3 Re8 15. Ba3 Bf8 16. Ne1 Nh5 17. g3 b6 18. Nd3 Ne6 19. Bxf8 Kxf8 20. Qe3 Kg7 21. Nf3 Nf8 22. Rd2 Bg4 23. Kg2 Nf6 24. h3 Bxf3+ 25. Qxf3 Rad8 26. Rad1 Qe7 27. Qe3 Qc7 28. Nb2 Rxd2 29. Rxd2 Rd8 30. Rxd8 Qxd8 31. b4 N8d7 32. Nd3 Qe7 33. Kf3 Nh7 34. h4 h5 35. bxa5 bxa5 36. Qa7 Nhf6 37. Qxa5 Ng4 38. Qb4 c5 39. Qb7 Qf6+ 40. Ke2 Nb6 41. Bxf7 Kh6 42. a5 c4 43. Qxb6 cxd3+ 44. Kxd3 Qxf7 45. a6 Qf3+ 46. Kc4 Qxe4+ 47. Kb5 Qd3+ 48. c4 Qb3+ 49. Kc5 Qa3+ 50. Kc6 Qf3+ 51. Kc7 Qf7+ 52. Kb8 Qe8+ 53. Kb7 Qf7+ 54. Qc7 Qf3+ 55. Qc6 Qf7+ 56. Kb6 Qxf2+ 57. c5 Qb2+ 58. Qb5 Qg2 59. a7 Nf6 60. Qc6 Nd5+ 61. Kb7 Qb2+ 62. Ka8 Qb3 63. Qb7 Qc4 64. Kb8 Qxc5 65. a8=Q Qd6+ 66. Ka7 Qc5+ 67. Kb8 Qd6+ 68. Ka7 Qc5+ 69. Kb8 1/2-1/2
2023.01.17 Titled Tue 17th Jan Early
1061699 Koellner, Ruben Gideon (2417) Wilson, E (2183) 1-0
1. d4 Nf6 2. Bg5 e6 3. Nd2 d5 4. e3 Be7 5. Bd3 b6 6. Ngf3 Bb7 7. Ne5 Nbd7 8. f4 Nxe5 9. fxe5 Ne4 10. Bxe7 Qxe7 11. Nxe4 dxe4 12. Bb5+ c6 13. Be2 Qg5 14. Qd2 O-O-O 15. O-O c5 16. c3 Rd7 17. Bb5 Rc7 18. Rf4 f5 19. exf6 gxf6 20. Qf2 f5 21. Qh4 h6 22. Raf1 Rg8 23. g3 cxd4 24. cxd4 Bd5 25. b3 Kb8 26. Ba6 Rc3 27. Re1 Rg7 28. Qxg5 hxg5 29. Rf2 g4 30. Rd2 Rgc7 31. Kg2 R7c6 32. Bb5 Rc7 33. Ba6 R7c6 34. Ree2 Rc1 35. Rf2 Kc7 36. Rf1 Kd6 37. Bb5 Rxf1 38. Kxf1 Rc3 39. Kf2 a5 40. Bf1 Kc7 41. Be2 Kc6 42. Bd1 b5 43. Rc2 Rxc2+ 44. Bxc2 b4 45. Bd1 a4 46. Ke1 Kb6 47. Kf2 Ka5 48. Kg2 a3 49. h4 gxh3+ 50. Kxh3 Kb6 51. g4 fxg4+ 52. Kxg4 Kc6 53. Kf4 Kd6 54. Bc2 1-0
2023.01.17 Titled Tue 17th Jan Early
1061941 Vaglio, J (2174) Koellner, Ruben Gideon (2417) 0-1
1. d4 d6 2. e4 Nf6 3. f3 e5 4. d5 Be7 5. Be3 c6 6. c4 Nh5 7. Ne2 Bg5 8. Qd2 Bxe3 9. Qxe3 O-O 10. g4 Nf6 11. Nbc3 Nbd7 12. O-O-O Qc7 13. h4 a6 14. Kb1 cxd5 15. g5 d4 16. Qg1 Nh5 17. Nd5 Qd8 18. Ng3 Nxg3 19. Qxg3 Nb6 20. h5 Nxd5 21. exd5 Bf5+ 22. Bd3 Bxd3+ 23. Rxd3 Qd7 24. h6 Qf5 25. Rd1 g6 26. Ka1 f6 27. gxf6 Rxf6 28. Rb3 Rf7 29. a4 Qc2 30. Rdd3 Qc1+ 31. Ka2 Qxh6 32. Rb6 Rd8 33. Rdb3 Rdd7 34. c5 dxc5 35. Qxe5 Qg7 36. Qe6 Kh8 37. d6 Qf6 38. Qd5 Qf5 39. Qc4 Kg7 40. f4 Rf6 41. Rxb7 Rxd6 42. Rb8 Qd5 43. Qe2 Re6 44. Qg4 d3 45. f5 Qxf5 46. Qc4 Qd5 47. Qc3+ Qd4 48. R3b7 Rxb7 49. Rxb7+ Kf6 50. Rd7 Qxc3 51. bxc3 c4 52. Ka3 a5 53. Rd5 Ke7 54. Rd4 Rd6 55. Re4+ Kd7 56. Re1 d2 57. Rd1 Ke6 58. Kb2 Ke5 59. Kc2 Ke4 60. Rh1 d1=Q+ 61. Kb2 Qxh1 62. Ka3 Qa1# 0-1
2023.01.17 Titled Tue 17th Jan Early
1062062 Koellner, Ruben Gideon (2417) Kamsky, G (2666) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 b6 5. Bd3 Bb7 6. Ne5 Nbd7 7. f4 c5 8. c3 c4 9. Bc2 b5 10. Qf3 b4 11. O-O Qc7 12. g4 h6 13. h4 Bd6 14. g5 hxg5 15. hxg5 Bxe5 16. fxe5 Nxe5 17. dxe5 d4 18. e4 O-O-O 19. cxd4 Rxd4 20. Qf4 Qc5 21. Rf2 Nh5 22. Qh2 Rdd8 23. Nf1 Nf6 24. Qg3 Nxe4 25. Bxe4 Bxe4 26. Nh2 Rd1+ 27. Nf1 Rh1# 0-1
2023.01.17 Titled Tue 17th Jan Early
1062368 Golding, Alex (2318) Koellner, Ruben Gideon (2417) 0-1
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. O-O-O+ Nd7 8. f3 Bd6 9. Nge2 h6 10. Be3 Ke7 11. a3 a6 12. g4 b5 13. Ng3 g6 14. h4 h5 15. g5 Nh7 16. Bh3 c6 17. Nge2 Rhd8 18. Bxe6 Kxe6 19. Rhf1 Bc5 20. Bd2 Ke7 21. Kb1 Nhf8 22. f4 exf4 23. Bxf4 Ne6 24. Bg3 Nb6 25. Rd3 Nc4 26. Ka2 Bd6 27. Rdf3 Rf8 28. b3 Bxg3 29. bxc4 Be5 30. cxb5 axb5 31. Nb1 Ra4 32. Nec3 Rc4 33. a4 bxa4 34. Ka3 Nd4 35. R3f2 Nb5+ 36. Nxb5 cxb5 37. c3 Bxc3 38. Nxc3 Rxc3+ 39. Kb4 Rb3+ 40. Kc5 a3 41. e5 Re3 42. Kxb5 Rxe5+ 43. Kb4 Re3 44. Rc1 Rb8+ 45. Ka4 Rb7 46. Rcc2 Re6 47. Ka5 Re4 48. Ka6 Rd7 49. Kb6 Rxh4 50. Kb5 Rg4 51. Rce2+ Kf8 52. Rc2 Rxg5+ 53. Kb4 0-1
2023.01.17 Titled Tue 17th Jan Early
1062639 Koellner, Ruben Gideon (2417) Mitrabha, G (2496) 0-1
1. d4 Nf6 2. Nf3 c5 3. e3 d5 4. Nbd2 cxd4 5. exd4 Nc6 6. c3 Bf5 7. Nh4 Bg4 8. Qb3 Qc7 9. h3 Bd7 10. Bd3 e5 11. dxe5 Nxe5 12. Be2 Bd6 13. Nhf3 Nc6 14. O-O O-O 15. Bd3 Rfe8 16. Qd1 Ne4 17. Nb3 a6 18. Be3 Re6 19. Nbd4 Rg6 20. Nh4 Rf6 21. Qh5 Ne5 22. Bc2 Re8 23. Nhf5 Bf8 24. Rad1 Nc4 25. Bc1 Qe5 26. g4 Kh8 27. Qh4 g6 28. f4 Qc7 29. Bxe4 Qd8 30. Bxd5 Nb6 31. Ne3 Rxe3 32. Bxe3 Nxd5 33. Bc1 Bg7 34. f5 Qb6 35. Bg5 Rd6 36. Qf2 h6 37. Bc1 g5 38. Nf3 Qc7 39. Rfe1 Bf8 40. Re2 Rc6 41. Nd4 Rd6 42. Rde1 Kg8 43. Re4 Nf6 44. Re5 Rb6 45. h4 Bd6 46. R5e3 Nxg4 47. Qg2 Nxe3 48. Bxe3 f6 49. hxg5 hxg5 50. Bxg5 fxg5 51. Qxg5+ Kf8 52. Ne6+ Bxe6 53. fxe6 Bc5+ 54. Kg2 Ke8 55. Qg8+ Ke7 56. Rd1 Rxb2+ 57. Kh3 Qh2+ 58. Kg4 Rg2+ 59. Kf5 Rxg8 60. Rd7+ Ke8 61. Rxb7 Qf2+ 62. Ke5 Rg5+ 63. Ke4 Qe3# 0-1
2023.01.17 Titled Tue 17th Jan Early
1062710 Kuznetsov, Mi1 (2246) Koellner, Ruben Gideon (2417) 1-0
1. Nf3 Nf6 2. g3 d5 3. Bg2 Nbd7 4. d4 e6 5. O-O b5 6. a4 b4 7. a5 Ba6 8. Re1 c5 9. Nbd2 Be7 10. e4 dxe4 11. Nxe4 O-O 12. Nxf6+ Bxf6 13. Be3 Rc8 14. c3 cxd4 15. Bxd4 bxc3 16. bxc3 Bxd4 17. Nxd4 Rxc3 18. Qd2 Qc7 19. Rac1 Rxc1 20. Rxc1 Qd6 21. Rc6 Qa3 22. Rxa6 Nc5 23. Rxa7 Rd8 24. Nc6 Rf8 25. Qd6 Qc1+ 26. Bf1 g6 27. Ne7+ Kh8 28. Nxg6+ 1-0
2023.01.10 Titled Tue 10th Jan Early
1066889 Marn, Jan (2359) Koellner, Ruben Gideon (2417) 0-1
1. d4 d6 2. Nf3 Nf6 3. g3 Nbd7 4. Bg2 e5 5. O-O Be7 6. c4 c6 7. Nc3 O-O 8. e4 Re8 9. h3 Bf8 10. Re1 Qc7 11. Be3 h6 12. Qd2 a6 13. a4 a5 14. Rad1 Nb8 15. c5 dxc5 16. dxe5 Nfd7 17. Bf4 Qb6 18. g4 Na6 19. Bf1 Nc7 20. Bc4 Ne6 21. Bg3 Qb4 22. Bf1 c4 23. Nh4 Nec5 24. Nf5 Nxe5 25. Bxe5 Rxe5 26. f4 Re8 27. e5 Bxf5 28. gxf5 Rad8 29. Qxd8 Rxd8 30. Rxd8 Qb6 31. Rxf8+ Kxf8 32. Kg2 Qxb2+ 33. Ne2 Nd3 34. Rd1 Nxf4+ 35. Kf3 Nxe2 36. Bxe2 Qxe5 37. Bxc4 Qxf5+ 38. Ke3 Qxh3+ 39. Kd2 Qg2+ 40. Kc3 Qf3+ 41. Rd3 Qf6+ 42. Kb3 g5 43. Rd7 g4 0-1
2023.01.10 Titled Tue 10th Jan Early
1067196 Koellner, Ruben Gideon (2417) Tomashevsky, E (2694) 1/2-1/2
1. d4 Nf6 2. Bg5 d5 3. e3 c5 4. c3 Qb6 5. Qb3 Nc6 6. Nd2 e5 7. dxe5 Nxe5 8. Bxf6 Qxb3 9. axb3 gxf6 10. Bb5+ Ke7 11. Ngf3 Be6 12. O-O h5 13. Nh4 Bh6 14. g3 Ng6 15. Ndf3 Nxh4 16. Nxh4 Bg5 17. Ng2 f5 18. h4 Bf6 19. Rfd1 Be5 20. Be2 a6 21. Ra5 b6 22. Rxa6 Rxa6 23. Bxa6 Ra8 24. Bb7 Ra2 25. Bxd5 Rxb2 26. Nf4 Bxc3 27. Nxe6 fxe6 28. Bc4 Bd2 29. Ra1 Ba5 30. Rd1 Bc3 31. Kf1 e5 32. Ra1 f4 33. exf4 exf4 34. gxf4 Bd4 35. Re1+ Kd7 36. Re2 Rb1+ 37. Kg2 Bf6 38. Re6 Bxh4 39. Rxb6 Rb2 40. Rh6 Rxf2+ 41. Kh3 Rxf4 42. Rxh5 Bf2 43. Rd5+ Kc6 1/2-1/2
2023.01.10 Titled Tue 10th Jan Early
1067438 Lesbekova, Assel (1740) Koellner, Ruben Gideon (2417) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. O-O-O+ Nd7 8. f3 Bd6 9. Nb5 Ke7 10. Ne2 a6 11. Nxd6 cxd6 12. Nc3 h6 13. Bh4 g5 14. Bf2 Rac8 15. Nd5+ Nxd5 16. exd5 Bf5 17. Bd3 Bxd3 18. Rxd3 f5 19. h4 g4 20. Rb3 b5 21. a4 Nc5 22. Bxc5 Rxc5 23. fxg4 fxg4 24. axb5 axb5 25. Rd1 Ra8 26. Kb1 Ra4 27. Rdd3 e4 28. Rd2 Kf6 29. Rg3 h5 30. b3 Ra8 31. Rf2+ Ke5 32. Rf7 Rxd5 33. Rc3 Rd1+ 34. Kb2 Raa1 35. Rc8 b4 36. Re8+ Kd4 37. c3+ bxc3+ 0-1
2023.01.10 Titled Tue 10th Jan Early
1067740 Koellner, Ruben Gideon (2417) Baskakov, Egor (2215) 1/2-1/2
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 Ne4 5. Nxe4 dxe4 6. Nd2 f5 7. f3 exf3 8. Qxf3 Bd6 9. Bc4 O-O 10. O-O Kh8 11. c3 c5 12. Nb3 Qe7 13. Kh1 Nc6 14. Bd2 e5 15. Qh5 cxd4 16. exd4 e4 17. Bf4 Bd7 18. Rae1 b6 19. Re3 Bxf4 20. Rxf4 g5 21. Rf1 f4 22. Ree1 e3 23. Bd5 Rae8 24. Nc1 Qd6 25. Bf3 Qg6 26. Qxg6 hxg6 27. h3 Kg7 28. Kg1 Ne7 29. Nd3 Bb5 30. Be2 Bxd3 31. Bxd3 Nd5 32. Be2 Re7 33. Bf3 Rd8 34. Re2 Nf6 35. Rd1 Ne4 36. Bxe4 Rxe4 37. Ree1 Kf6 38. Kf1 Ke6 39. Ke2 Kf5 40. Kf3 Re7 41. Re2 Rh7 42. Ree1 Rdh8 43. d5 Rd8 44. c4 Rc7 45. b3 b5 46. Rd4 bxc4 47. bxc4 Rc5 48. Rb1 Ra5 49. Rb2 Rd6 50. Rc2 Rc5 51. Rb2 Ra5 52. Rc2 Rc5 53. Rb2 Ra5 1/2-1/2
2023.01.10 Titled Tue 10th Jan Early
1068027 Harsha, B (2599) Koellner, Ruben Gideon (2417) 0-1
1. b3 d6 2. Bb2 e5 3. g3 Nf6 4. Bg2 c6 5. c4 Be7 6. Nf3 O-O 7. O-O Nbd7 8. Nc3 Re8 9. d3 Nf8 10. b4 Ng6 11. b5 Bf8 12. Nd2 Bd7 13. a4 Qc7 14. Rc1 a6 15. Qb3 axb5 16. axb5 Reb8 17. Nde4 Nxe4 18. dxe4 Be6 19. Rfd1 Be7 20. h4 Nf8 21. Ba3 Nd7 22. Bb4 Nb6 23. Nd5 Nxd5 24. cxd5 Bd7 25. dxc6 bxc6 26. bxc6 Bxc6 27. Qc4 Qd7 28. Bxd6 Bxd6 29. Qxc6 Qxc6 30. Rxc6 Bf8 31. e3 Rd8 32. Rd5 f6 33. Bf1 Rac8 34. Rxc8 Rxc8 35. h5 g6 36. Be2 Rc7 37. Kg2 Kg7 38. Bg4 Be7 39. Ra5 Kf7 40. Be2 Kg7 41. Rb5 Kf7 42. Kh2 Kg7 43. Kg2 Kf7 44. Kf3 Kg7 45. Rb6 Kf7 46. Bd1 Kg7 47. Kg2 Kf7 48. hxg6+ hxg6 49. Bb3+ Kg7 50. Kf3 Bc5 51. Rb5 Be7 52. Bd5 Bd6 53. Ke2 Bf8 54. Rb6 Be7 55. Ra6 Bf8 56. f4 Re7 57. Kf3 Rc7 58. Re6 Re7 59. Rc6 Rd7 60. Rc8 Re7 61. Rb8 Rd7 62. g4 g5 63. Rb6 Rc7 64. Re6 exf4 65. exf4 Rc3+ 66. Kf2 gxf4 67. Rc6 Bc5+ 68. Ke2 Re3+ 69. Kf1 Bd4 70. Rc7+ Kg6 71. Be6 Kg5 72. Rg7+ Kh4 0-1
2023.01.10 Titled Tue 10th Jan Early
1068204 Koellner, Ruben Gideon (2417) Vakhlamov, I (2413) 1-0
1. d4 d5 2. Nf3 Nf6 3. Nbd2 e6 4. e3 b6 5. Bd3 Bb7 6. Ne5 Nbd7 7. f4 Nxe5 8. fxe5 Ne4 9. O-O Qg5 10. Qf3 f5 11. exf6 Nxf6 12. e4 Qg4 13. Qxg4 Nxg4 14. e5 Ne3 15. Rf3 Nc4 16. Rf2 Nxd2 17. Bxd2 Be7 18. Raf1 O-O-O 19. Rf7 Bf8 20. Bg5 Re8 21. h4 Bc6 22. h5 a5 23. c3 a4 24. g4 Kb8 25. Kg2 Kc8 26. Kg3 Kb8 27. R1f2 Kc8 28. Bxh7 Rxh7 29. Rxf8 Rh8 30. Rxh8 Rxh8 31. Rf7 Rg8 32. Bd2 Be8 33. Re7 Bd7 34. Kh4 c5 35. Be3 c4 36. a3 Kd8 37. Bg5 Kc8 38. Rf7 b5 39. Be7 Be8 40. Rf8 Rxf8 41. Bxf8 Kd7 42. Kg5 Bf7 43. Bxg7 Bg8 44. Kg6 Ke8 45. h6 Bf7+ 46. Kf6 Bg8 47. g5 Bh7 48. g6 Bxg6 49. Kxg6 b4 50. axb4 Kd7 51. h7 Kc6 52. h8=Q Kb5 53. Qe8+ Ka6 54. Qxa4+ Kb6 55. Qa5+ Kc6 56. Qa6+ Kd7 57. Kf6 Kc7 58. Kxe6 Kd8 59. Qa7 Kc8 60. Kd6 Kd8 61. Qa8# 1-0
2023.01.10 Titled Tue 10th Jan Early
1068438 Koellner, Ruben Gideon (2417) Bacrot, E (2653) 1-0
1. d4 Nf6 2. Bg5 d5 3. e3 c5 4. Bxf6 gxf6 5. dxc5 Nc6 6. Bb5 e5 7. c4 a6 8. Ba4 Be6 9. cxd5 Bxd5 10. Nf3 Bxc5 11. Nc3 Bb4 12. Rc1 Qa5 13. Bb3 Rd8 14. Bxd5 Rxd5 15. Qb3 Bxc3+ 16. Qxc3 Rc5 17. Qxa5 Rxa5 18. a3 Ke7 19. Ke2 Rg8 20. g3 Rb5 21. Rc2 Rc8 22. Rhc1 Rd8 23. Nd2 a5 24. Ne4 Ra8 25. Nc3 Rc5 26. Na4 Rxc2+ 27. Rxc2 Rc8 28. Rd2 Rc7 29. Nb6 Ke6 30. Nd5 Rd7 31. Nc3 Rc7 32. Nb5 Rc8 33. Nd6 Rc7 34. Ne4 Ke7 35. Nd6 Ke6 36. Nb5 Rc8 37. h3 Ke7 38. Nd6 Rb8 39. Nf5+ Ke6 40. g4 Rd8 41. Rxd8 Nxd8 42. Kd3 Nc6 43. Kc4 e4 44. Kc5 Ne5 45. Kb6 Nc4+ 46. Kxb7 Nxb2 47. Ka6 a4 48. Kb5 Ke5 49. Kb4 Kd5 50. Kc3 Nd1+ 51. Kb4 Nxf2 52. Kxa4 Nxh3 53. Kb5 Nf2 54. a4 Nxg4 55. a5 Ne5 56. a6 Nc6 57. Ne7+ Nxe7 58. a7 Ke5 59. a8=Q Nd5 60. Kc5 Nxe3 61. Qe8+ Kf5 62. Qd7+ Kf4 63. Qxf7 f5 64. Qc7+ Kf3 65. Qxh7 Ng4 66. Qxf5+ 1-0
2023.01.10 Titled Tue 10th Jan Early
1068535 Kravtsiv, M (2598) Koellner, Ruben Gideon (2417) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. O-O h6 8. Re1 Qc7 9. b3 Nf8 10. d5 Ng6 11. h3 O-O 12. Qe2 a5 13. Be3 Nh5 14. Kh2 Nhf4 15. Qf1 Kh7 16. Ng1 f5 17. Bxf4 exf4 18. Rad1 Bf6 19. exf5 Bxf5 20. Ne4 Be5 21. Nf3 Rad8 22. Re2 Rfe8 23. Qe1 Re7 24. Bd3 Kh8 25. dxc6 bxc6 26. Nc5 Bxd3 27. Nxd3 Rde8 28. Qd2 d5 29. Rde1 Bf6 30. Rxe7 Rxe7 31. Rxe7 Bxe7 32. Qe1 Bf6 33. Qe6 Kh7 34. Qf5 Qd6 35. h4 1-0
2023.01.10 Titled Tue 10th Jan Early
1068806 Koellner, Ruben Gideon (2417) Kosakowski, Jakub (2466) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 Nc6 5. Bd3 b6 6. O-O Bb7 7. c3 Be7 8. e4 cxd4 9. cxd4 d6 10. a3 O-O 11. b4 Rc8 12. Bb2 h6 13. Rc1 Nd7 14. Qe2 Re8 15. h3 Bf8 16. Rfd1 e5 17. d5 Ne7 18. Ba6 Bxa6 19. Qxa6 Rc7 20. Rxc7 Qxc7 21. Rc1 Qb8 22. Nb1 f5 23. Nfd2 Nf6 24. f3 Nh5 25. Nc3 Nf4 26. Kh2 fxe4 27. fxe4 Neg6 28. g3 Nh5 29. Qe2 Nf6 30. Qa6 Nh5 31. Nf3 Be7 32. Nb5 Rf8 33. Nxa7 Qe8 34. Rc8 Qf7 35. Rxf8+ Bxf8 36. Kg2 Nxg3 37. Kxg3 Qf4+ 38. Kf2 Qxe4 39. Qe2 Qxd5 40. Nd2 Qf7+ 41. Qf3 Qxa7 42. Ke2 d5 43. Qxd5+ Kh8 44. Bxe5 Qxa3 45. Qf7 Qxb4 46. Qxg6 Qb5+ 47. Kd1 Qxe5 48. Qxb6 Qc3 49. Qd8 Qb4 50. Ke2 Qb5+ 51. Kf3 Qf5+ 52. Ke2 Kg8 53. h4 Qe6+ 54. Kd1 Kf7 55. Qd3 Be7 56. Qf3+ Kg8 57. h5 Qa2 58. Ke2 Bg5 59. Qd5+ Qxd5 0-1
2023.01.10 Titled Tue 10th Jan Early
1068939 Koellner, Ruben Gideon (2417) Kukhmazov, A (2495) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. Nbd2 Nbd7 5. c3 g6 6. Bd3 Bg7 7. O-O O-O 8. e4 cxd4 9. Nxd4 Nc5 10. Bc2 Nfxe4 11. Nxe4 Nxe4 12. Bxe4 dxe4 13. Re1 f5 14. Qb3+ Kh8 15. Ne6 Bxe6 16. Qxe6 Qd6 17. Qb3 Qb6 18. Qxb6 axb6 19. Be3 b5 20. a3 Rfd8 21. Red1 Kg8 22. Kf1 Kf7 23. Ke2 Ke6 24. Bb6 Rd6 25. Bc5 Rxd1 26. Rxd1 Rc8 27. Bd4 Bxd4 28. Rxd4 h5 29. h4 Rc7 30. g3 Rd7 31. Rb4 Rd5 32. a4 bxa4 33. Rxb7 Ra5 34. Rb6+ Kf7 35. Ke3 a3 36. bxa3 Rxa3 37. Rc6 e6 38. Rc8 Kf6 39. Kf4 Ra2 40. Ke3 Rc2 41. Rc5 g5 42. hxg5+ Kxg5 43. Rc8 e5 44. Rg8+ Kf6 45. Rc8 Ke6 46. Re8+ Kd5 47. Rd8+ Kc4 48. Rc8+ Kb3 49. Rb8+ Kxc3 50. Rf8 Rc1 51. Ke2 Rc2+ 52. Ke3 Rc1 53. Ke2 Kd4 54. Rd8+ Kc3 55. Rf8 1/2-1/2
2023.01.10 Titled Tue 10th Jan Early
1069044 Ter Sahakyan, S (2605) Koellner, Ruben Gideon (2417) 1-0
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Ng5 f5 5. h4 Be7 6. Nc3 Nf6 7. Bf4 O-O 8. e3 h6 9. Be2 hxg5 10. hxg5 Ng4 11. f3 Nxe3 12. Bxe3 Bxg5 13. f4 Bf6 14. Bh5 Bh4+ 15. g3 Bxg3+ 16. Kd2 Qf6 17. Nd5 Qe6 18. Bg6 Rf6 19. Nxf6+ Qxf6 20. Rh8+ Kxh8 21. Qh5+ Kg8 22. Qh7+ Kf8 23. Qh8+ Ke7 24. Qe8# 1-0
2022.12.20 Titled Tue 20th Dec Early
1092449 Koellner, Ruben Gideon (2417) Fawzy, Adham (2480) 1-0
1. d4 Nf6 2. Bg5 g6 3. Bxf6 exf6 4. g3 Bg7 5. Bg2 O-O 6. e3 d5 7. Ne2 Be6 8. O-O c6 9. b3 Nd7 10. Nd2 Rc8 11. c4 Qe7 12. Nf4 dxc4 13. bxc4 Rfd8 14. d5 cxd5 15. cxd5 Bf5 16. e4 g5 17. exf5 gxf4 18. Re1 Qf8 19. Ne4 fxg3 20. hxg3 Nc5 21. Rb1 Nxe4 22. Rxe4 b6 23. Qh5 h6 24. Rg4 Kh7 25. Ra4 Rc7 26. Rd1 Qd6 27. Re4 Re7 28. Rxe7 Qxe7 29. d6 Rxd6 30. Rxd6 Qxd6 31. Qxf7 Qf8 32. Qxa7 Qd8 33. Qf7 Qf8 34. Qg6+ Kh8 35. Bd5 Qe7 36. Kg2 Qf8 37. Be6 Qe7 38. Qg4 Qf8 39. Qe4 Qe7 40. Qa8+ Kh7 41. Qc6 Kh8 42. Qxb6 Bf8 43. Qc6 Kg7 44. a4 Qd6 45. Qe4 Qe5 46. Qg4+ Kh8 47. Qg8# 1-0
2022.12.20 Titled Tue 20th Dec Early
1092645 Rian, K (2089) Koellner, Ruben Gideon (2417) 0-1
1. d4 d6 2. Nf3 Nf6 3. Bf4 g6 4. e3 Bg7 5. h3 O-O 6. Be2 Nc6 7. O-O Nd7 8. Bh2 e5 9. c4 h6 10. Nc3 exd4 11. exd4 Nf6 12. c5 Re8 13. cxd6 cxd6 14. Nb5 Bf8 15. Bd3 Be6 16. Re1 Nd5 17. a3 Rc8 18. Rc1 a6 19. Nc3 Nxc3 20. Rxc3 Bd5 21. Rxe8 Qxe8 22. Bc4 Bxc4 23. Rxc4 Qe4 24. Rc3 Qd5 25. Bf4 Bg7 26. Be3 Re8 27. Qd2 Kh7 28. b4 b5 29. Rd3 Ne7 30. Rc3 Nc8 31. Qc2 Nb6 32. Rc6 Nc4 33. Rxa6 Nxe3 34. fxe3 Rxe3 35. Ra7 Re8 36. Qc7 Bxd4+ 37. Nxd4 Qxd4+ 38. Kh2 Qf4+ 39. g3 Re2+ 40. Kg1 Qf2+ 41. Kh1 Qg2# 0-1
2022.12.20 Titled Tue 20th Dec Early
1092779 Koellner, Ruben Gideon (2417) Narayanan, Sri (2559) 0-1
1. d4 d5 2. Nf3 Nf6 3. Nbd2 c6 4. e3 g6 5. b4 Bg7 6. c4 O-O 7. Bb2 a5 8. b5 cxb5 9. cxb5 Nbd7 10. Bd3 Nb6 11. O-O Bf5 12. Bxf5 gxf5 13. Rc1 a4 14. Ba3 Re8 15. Ne5 e6 16. Nd3 Ne4 17. Nxe4 fxe4 18. Nb2 Qd7 19. Qe2 Ra5 20. Bb4 Qxb5 21. Qd2 Raa8 22. a3 Rac8 23. Rc5 Rxc5 24. Bxc5 Nc4 25. Nxc4 dxc4 26. Qc2 Qb3 27. Qxe4 c3 28. Rb1 f5 29. Rxb3 axb3 30. Qd3 c2 31. Qc4 Kf7 32. a4 Rc8 33. g3 b6 34. Kg2 bxc5 35. dxc5 Bb2 36. Qxb3 Rxc5 37. Qb7+ Kg6 38. Qxb2 c1=Q 39. Qe5 Rxe5 0-1
2022.12.20 Titled Tue 20th Dec Early
1092933 Mestnikov, Aisen (2095) Koellner, Ruben Gideon (2417) 0-1
1. d4 d6 2. c4 e5 3. d5 f5 4. e4 Nf6 5. Nc3 Nxe4 6. Nxe4 fxe4 7. Ne2 Na6 8. Ng3 Qh4 9. Be3 Be7 10. Qc2 O-O 11. Qxe4 Nb4 12. Qxh4 Bxh4 13. Kd2 Bxg3 14. hxg3 Bf5 15. Be2 Nc2 16. Rac1 Nxe3 17. Kxe3 b6 18. b4 a5 19. b5 h6 20. f3 Rae8 21. Bd3 Bxd3 22. Kxd3 e4+ 23. fxe4 Rf2 24. Rc2 Rxc2 25. Kxc2 Rxe4 26. Kd3 Rg4 27. Rh3 Kf7 28. a4 Kg6 29. Kc3 h5 30. Kd3 Kg5 31. Kc3 g6 32. Kd3 Kf5 33. Kc3 Ke4 34. Rh4 Rxh4 35. gxh4 Ke3 36. Kc2 Kd4 37. Kb3 Kd3 38. g3 Kd4 0-1
2022.12.20 Titled Tue 20th Dec Early
1093243 Koellner, Ruben Gideon (2417) Daneshvar, Bardiya (2500) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. O-O Nc6 7. c3 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. a4 Qe7 11. b3 Rd8 12. Qe2 Nh5 13. g3 Be6 14. Ba3 Qd7 15. Rfd1 Bf8 16. Bxf8 Kxf8 17. Nf3 Bxc4 18. Qxc4 Qe7 19. a5 a6 20. Rd5 f6 21. Rad1 c6 22. Rxd8+ Rxd8 23. Rxd8+ Qxd8 24. Qc5+ Qe7 25. Qa7 Ng7 26. Qb8+ Ne8 27. Nd2 Qc7 28. Qa8 Qxa5 29. Qxb7 Qxc3 30. Nc4 Qe1+ 31. Kg2 Qxe4+ 32. Kg1 h5 33. Qxa6 h4 34. Qc8 Qb1+ 35. Kg2 Qxb3 36. Qxc6 Qd3 37. Qe6 h3+ 38. Kxh3 Qf1+ 39. Kg4 Qxf2 40. Nd6 Qe2+ 41. Kh3 Qf1+ 42. Kh4 g5+ 43. Kg4 Qd1+ 44. Kh3 Qxd6 45. Qf5 Ng7 46. Qh7 Qe6+ 47. Kg2 e4 48. Qh8+ Kf7 49. Qh7 e3 50. Qd3 e2 0-1
2022.12.20 Titled Tue 20th Dec Early
1093341 Mogirzan, Matei-Valeriu (1813) Koellner, Ruben Gideon (2417) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. g4 Nb6 7. dxe5 Nxc4 8. exf6 Bxf6 9. g5 Bxc3+ 10. bxc3 O-O 11. Qd4 Bg4 12. Nh4 d5 13. h3 Re8 14. f3 Bxf3 15. O-O Rxe4 16. Qf2 Bh5 17. Nf5 Qd7 18. Ng3 Rh4 19. Nf5 Rxh3 20. Qd4 f6 21. gxf6 Rf8 22. Ne7+ Qxe7 23. fxe7 Rxf1+ 24. Kxf1 c6 25. Kg2 Rf3 26. e8=R+ Bxe8 27. Kxf3 1-0
2022.12.20 Titled Tue 20th Dec Early
1093548 Koellner, Ruben Gideon (2417) Khamdamova, Afruza (2139) 0-1
1. d4 Nf6 2. Nf3 d5 3. Nbd2 c5 4. e3 Nc6 5. c3 Bf5 6. dxc5 a5 7. Bb5 e6 8. b4 Rc8 9. Nd4 Bg6 10. Qa4 Qc7 11. f4 Be7 12. N2f3 O-O 13. Bxc6 bxc6 14. Ne5 Ne4 15. Bd2 Bf6 16. Ndxc6 axb4 17. cxb4 Nxd2 18. Kxd2 Be4 19. Rhc1 Bxg2 20. b5 d4 21. exd4 Bxc6 22. bxc6 Bxe5 23. fxe5 Ra8 24. Qc4 Qxc6 25. Rg1 Rfd8 26. Rab1 Ra4 27. Rb4 Rxb4 28. Qxb4 Qe4 29. Kc1 Qe3+ 30. Kc2 Qxg1 31. c6 Qxd4 0-1
2022.12.13 Titled Tue 13th Dec Early
1101267 Przybylski, W (2321) Koellner, Ruben Gideon (2417) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. a4 c6 6. a5 Be7 7. g4 h6 8. Rg1 exd4 9. Nxd4 Ne5 10. Nf5 Bxf5 11. gxf5 g5 12. f4 gxf4 13. Bxf4 Qc7 14. Qe2 O-O-O 15. a6 b5 16. Rg3 Rhg8 17. Bg2 Rxg3 18. hxg3 h5 19. Nd1 Nfg4 20. Ne3 Qb6 21. O-O-O Qxa6 22. Kb1 Qb6 23. Rh1 Nf6 24. Bg5 Rg8 25. Bh4 Kd7 26. Rd1 Ke8 27. Qd2 Qc5 28. Re1 Nfg4 29. Nxg4 Rxg4 30. f6 Bf8 31. Qe2 Qc4 32. Qe3 Qc5 33. Qb3 Nc4 34. Qc3 Qf2 35. Bh3 Rg6 36. Rd1 Kd8 37. Bf5 Kc7 38. Bxg6 fxg6 39. e5 Nxe5 40. f7 Qxf7 41. Qa3 Kb7 42. Bd8 Qd7 43. Bf6 Be7 44. Bxe5 Qe6 45. Bxd6 Bxd6 46. Qxd6 Qg4 47. Qe7+ Kb6 48. Qd8+ Kb7 49. Rd7+ Ka6 50. Qc8+ Kb6 51. Qc7+ Kc5 52. Qxa7+ Kc4 53. b3+ Kc3 54. Qa1+ Kb4 55. Rd4+ Kc5 56. Rxg4 hxg4 57. Qe5+ 1-0
2022.12.13 Titled Tue 13th Dec Early
1101311 Koellner, Ruben Gideon (2417) Martin Duque, J (2379) 1-0
1. d4 Nf6 2. Bg5 b6 3. Bxf6 exf6 4. Nf3 Bb7 5. e3 g6 6. c4 Bg7 7. g3 O-O 8. Bg2 f5 9. Nc3 Re8 10. O-O d6 11. a4 a5 12. Nd5 Nd7 13. Qd2 Nf8 14. b4 axb4 15. Qxb4 Ra5 16. Nd2 Ne6 17. Nb3 Bxd5 18. cxd5 Ng5 19. Nxa5 bxa5 20. Qxa5 h5 21. h4 Ne4 22. Rfc1 g5 23. Qxc7 Qf6 24. Qd7 Rd8 25. Rc8 Rxc8 26. Qxc8+ Kh7 27. Bxe4 fxe4 28. hxg5 Qf3 29. a5 Bxd4 30. exd4 e3 31. Qc2+ Kg7 32. Re1 h4 33. Rxe3 Qxd5 34. Qe4 Qxg5 35. Qxh4 Qg6 36. Re4 1-0
2022.12.13 Titled Tue 13th Dec Early
1101620 Miszler, Levente (2267) Koellner, Ruben Gideon (2417) 1/2-1/2
1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. b3 c5 7. Bb2 Nc6 8. e3 d4 9. exd4 cxd4 10. Re1 a5 11. a3 Bc5 12. d3 Re8 13. Nbd2 e5 14. Qc2 Bf5 15. Nh4 Be6 16. Ndf3 Qd6 17. Ng5 Bd7 18. Ne4 Nxe4 19. Bxe4 g6 20. Re2 Bg4 21. Bf3 Bxf3 22. Nxf3 f6 23. Nd2 f5 24. Rae1 Bxa3 25. Bxa3 Qxa3 26. f4 Qc5 27. fxe5 Rxe5 28. Kg2 Rae8 29. Nf3 Re3 30. Qb2 h6 31. Rxe3 Rxe3 32. Rxe3 dxe3 33. d4 Qe7 34. d5 Nb4 35. Ne5 Kh7 36. Kf3 g5 37. Kxe3 Qf6 38. Nd3 Qxb2 39. Nxb2 Kg6 40. Na4 Na6 41. Kd4 Kf6 42. c5 h5 43. Nb6 f4 44. gxf4 gxf4 45. Nd7+ Kf5 46. c6 bxc6 47. dxc6 Nc7 48. Ne5 Ne6+ 49. Kd5 Nc7+ 50. Kd6 Nb5+ 51. Kd5 Nc3+ 52. Kd4 Nb5+ 53. Kd5 Nc7+ 54. Kd6 Ne8+ 55. Kd5 Nc7+ 1/2-1/2
2022.12.13 Titled Tue 13th Dec Early
1101727 Koellner, Ruben Gideon (2417) Javakhishvili, L (2440) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 Bd6 5. Bd3 c5 6. c3 Nc6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 e5 11. e4 Bg4 12. h3 Bh5 13. exd5 Nxd5 14. Qc2 Bg6 15. Bxg6 hxg6 16. Rfd1 Qc7 17. Nc4 Nce7 18. Nxd6 Qxd6 19. c4 Nxb4 20. Qc3 Qc5 21. Nxe5 Nf5 22. Nd7 Qe7 23. Nxf8 Qxf8 24. Ba3 a5 25. Rdb1 Rd8 26. Bxb4 axb4 27. Qxb4 Qe8 28. Qxb7 Nd4 29. Re1 Qa4 30. c5 Qc2 31. Qe7 Rd5 32. Rac1 Ne2+ 33. Qxe2 Rd2 34. Qe8+ Kh7 35. Rxc2 1-0
2022.12.13 Titled Tue 13th Dec Early
1101988 Bilan, Danila (2303) Koellner, Ruben Gideon (2417) 0-1
1. d4 d6 2. Nf3 Nf6 3. Bg5 Nbd7 4. Nbd2 e5 5. e4 Be7 6. c3 c6 7. Bc4 h6 8. Bh4 b5 9. Bb3 a5 10. a4 b4 11. O-O Ba6 12. Re1 O-O 13. dxe5 dxe5 14. Nc4 Ne8 15. Bg3 Bxc4 16. Bxc4 Qc7 17. Nh4 Nd6 18. Bb3 Rfd8 19. Ng6 Bf6 20. Qc2 Rab8 21. Rad1 bxc3 22. bxc3 Nc5 23. Ba2 Ndb7 24. Nh4 Rxd1 25. Rxd1 Rd8 26. Rxd8+ Qxd8 27. Nf3 Qd6 28. h4 Nd7 29. Bxf7+ Kxf7 30. Qb3+ Kg6 31. Qxb7 Nc5 32. h5+ Kh7 33. Qf7 Nxa4 34. Qg6+ Kg8 35. Qe8+ Kh7 36. Qg6+ Kg8 37. Qe8+ Qf8 38. Qxc6 Nb2 39. Bxe5 Bxe5 40. Nxe5 a4 41. Qe6+ Kh7 42. Qg6+ Kg8 43. Qe6+ Kh7 44. Ng6 Qd8 45. Qf5 Kg8 46. Qe6+ Kh7 47. Qf7 Qd1+ 48. Kh2 Qxh5+ 49. Kg1 Qxg6 50. Qa2 Qb6 51. e5 Qb3 52. Qb1+ Kg8 53. Qf5 a3 54. e6 Qb7 55. Qa5 Nc4 56. Qa4 Qc7 57. e7 Qxe7 58. Qxc4+ Kh7 59. Qa4 Qe1+ 60. Kh2 Qxc3 61. Qxa3 Qxa3 0-1
2022.12.13 Titled Tue 13th Dec Early
1102148 Koellner, Ruben Gideon (2417) Paravyan, D (2586) 1/2-1/2
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 a5 6. b5 c5 7. bxc6 Nxc6 8. a4 O-O 9. Ba3 Bf5 10. c3 Ne4 11. Nxe4 dxe4 12. Nd2 Re8 13. Bb5 e5 14. O-O Qg5 15. d5 Bh3 16. g3 Bxf1 17. Qxf1 Ne7 18. Bxe8 Rxe8 19. Nxe4 Qg4 20. f3 Qd7 21. c4 Nf5 22. Bc1 Rc8 23. Qd3 Nd6 24. Nxd6 Qxd6 25. Ba3 Qd7 26. Rc1 Qxa4 27. d6 e4 28. fxe4 Rd8 29. c5 h5 30. Kg2 h4 31. Rc4 Qd7 32. gxh4 Qg4+ 33. Kf2 Bf6 34. Ke1 Bxh4+ 35. Kd2 Qg2+ 36. Qe2 Qh3 37. e5 Bg5 38. Kd3 Qf5+ 39. Re4 Qe6 40. Qc2 Rc8 41. Qc4 Qf5 42. e6 b5 43. exf7+ Kh7 44. Qd4 Bf6 45. d7 Rd8 46. f8=Q Rxf8 47. Qd6 Bg7 48. d8=Q Rxd8 49. Qxd8 Qf1+ 50. Kd2 Qg2+ 51. Kd3 Qf1+ 52. Kc2 Qg2+ 53. Kd3 Qf1+ 1/2-1/2
2022.12.13 Titled Tue 13th Dec Early
1102194 Koellner, Ruben Gideon (2417) Ozen, Bahadir (2369) 1/2-1/2
1. d4 d6 2. Nf3 Nf6 3. Nbd2 Nbd7 4. e4 e5 5. dxe5 dxe5 6. Bc4 Be7 7. O-O O-O 8. c3 c6 9. a4 Rb8 10. Qe2 Qc7 11. b4 b5 12. axb5 cxb5 13. Bxb5 Qxc3 14. Rxa7 Rb7 15. Ra8 Qxb4 16. Ba3 Qxb5 17. Qxb5 Rxb5 18. Bxe7 Re8 19. Bxf6 Nxf6 20. Nc4 Bb7 21. Rxe8+ Nxe8 22. Re1 f6 23. Nfd2 Rb4 24. f3 Kf7 25. Rb1 Rxb1+ 26. Nxb1 Ke6 27. Kf2 Nd6 28. Nxd6 Kxd6 29. Ke3 Kc5 30. Nd2 Bc6 31. g3 g5 32. f4 gxf4+ 33. gxf4 exf4+ 34. Kxf4 Kd6 35. Nf3 Bd7 36. Ne1 Ke7 37. Nc2 Kf7 38. Ne3 Kg6 39. Nd5 Be6 40. Ne7+ Kf7 41. Nc6 Bd7 42. Nd4 Kg6 43. Nf3 Kh5 44. e5 fxe5+ 45. Nxe5 Bc8 46. Kg3 1/2-1/2
2022.12.13 Titled Tue 13th Dec Early
1102481 Tomaszewski, K (2320) Koellner, Ruben Gideon (2417) 1/2-1/2
1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Be7 5. Bg5 h6 6. Bxf6 Bxf6 7. cxd5 exd5 8. e3 c6 9. Bd3 O-O 10. O-O Be7 11. Qc2 Nd7 12. Rac1 Bd6 13. Rfe1 Nf6 14. h3 Re8 15. Nd2 Be6 16. Qb1 Qe7 17. Na4 Rad8 18. Nc5 Bc8 19. b4 b6 20. Na6 Bxa6 21. Bxa6 Bxb4 22. Red1 c5 23. dxc5 bxc5 24. Bb5 Rf8 25. Nf3 Qe4 26. Qxe4 Nxe4 27. Bc6 Nc3 28. Rd2 Rd6 29. a3 Rxc6 30. axb4 cxb4 31. Nd4 Rb6 32. Ra1 Ra8 33. Ra5 b3 34. Rb2 Nd1 35. Rxb3 Rxb3 36. Nxb3 Nc3 37. Rc5 Ne4 38. Rxd5 Rb8 39. Nd2 Nc3 40. Ra5 Rb2 41. Nc4 Rb7 42. Ne5 Rb5 43. Rxb5 Nxb5 44. Kf1 Kf8 45. Ke2 Ke7 46. Kd3 Ke6 47. Nc6 Kd6 48. Na5 Kc5 49. e4 Kb4 50. Nc6+ Kc5 51. Na5 f6 52. f4 Nd6 53. g4 Kb5 54. Nb3 Kb4 55. Nd4 a5 56. e5 fxe5 57. fxe5 Ne8 58. Nc6+ Kb5 59. Nd4+ Kc5 60. Ke4 a4 61. h4 Kc4 62. Nc2 Kb3 63. Nd4+ Kc3 64. Nb5+ Kb4 65. Nd4 Kc4 66. Nc2 Kc3 67. Na3 Kb3 68. Nb5 a3 69. Nxa3 Kxa3 70. Kf5 Kb4 71. Kg6 Kc5 72. Kf7 Kd5 73. e6 g5 74. hxg5 hxg5 75. e7 Nd6+ 76. Kf6 Ne8+ 77. Kxg5 Ke6 78. Kg6 Kxe7 79. Kh7 Kf8 80. g5 Kf7 81. g6+ Kf6 82. g7 Nxg7 1/2-1/2
2022.12.13 Titled Tue 13th Dec Early
1102571 Zhigalko, S (2572) Koellner, Ruben Gideon (2417) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. Be3 Nf8 10. Nh4 g6 11. h3 Ne6 12. dxe5 dxe5 13. Qd2 Nh5 14. Nf3 Nhf4 15. Rad1 Kf8 16. Kh2 Kg7 17. g3 Nxh3 18. Bxe6 Bxe6 19. Nxe5 Rad8 20. Nd3 Ng5 21. Qe2 Qc8 22. f3 h5 23. Nf4 h4 24. g4 Bf6 25. Kh1 Be5 26. Nd3 Bf6 27. Bxa7 Qc7 28. e5 Be7 29. Qe3 Qc8 30. Bc5 Bxc5 31. Nxc5 Rxd1 32. Rxd1 Nxf3 33. Qxf3 Bxg4 34. Qf6+ Kh6 35. Rf1 Bf5 36. Kg1 Re8 37. Qxh4+ Kg7 38. Qf6+ Kg8 39. Rf2 Bxc2 40. Rxc2 Qg4+ 41. Rg2 Qd4+ 42. Rf2 1-0
2022.12.13 Titled Tue 13th Dec Early
1102664 Koellner, Ruben Gideon (2417) Santos Flores, A (2164) 1-0
1. d4 d5 2. Nf3 Nf6 3. Nbd2 Bf5 4. e3 c6 5. Ne5 Nfd7 6. g4 Bg6 7. Nxg6 hxg6 8. Bg2 e5 9. O-O Bd6 10. h3 Qe7 11. e4 exd4 12. exd5 O-O 13. Re1 Qf6 14. Ne4 Qe5 15. Ng5 Qh2+ 16. Kf1 Bb4 17. Qxd4 c5 18. Qe4 Nf6 19. Qf3 Qd6 20. c3 Ba5 21. Bf4 Qd7 22. Qg3 Na6 23. Qh4 Rfe8 24. Be5 1-0
2022.12.13 Titled Tue 13th Dec Early
1102815 Mendez Fortes, E (2250) Koellner, Ruben Gideon (2417) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. Ba2 Nf8 10. d5 Ng6 11. a5 O-O 12. Nd2 c5 13. Nc4 Bd7 14. Bb3 b5 15. axb6 axb6 16. Rxa8 Rxa8 17. Na3 Ra5 18. Qd3 Nf4 19. Bxf4 exf4 20. e5 dxe5 21. Nc4 Bd6 22. Nxa5 bxa5 23. Bc4 Qb7 24. b3 Qb4 25. Ra1 a4 26. Nxa4 e4 27. Qc3 Qb8 28. Re1 Be5 29. Qa5 Bxa4 30. Qxa4 f3 31. g3 Bd4 32. Qb5 Qe5 33. Bd3 Bxf2+ 34. Kxf2 Ng4+ 35. Kg1 Qd4+ 36. Kh1 Nf2+ 37. Kg1 Nh3+ 38. Kh1 Qg1+ 39. Rxg1 Nf2# 0-1
2022.12.06 Titled Tue 6th Dec Early
1106804 Lopez del Alamo, An (2275) Koellner, Ruben Gideon (2417) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. O-O h6 8. Re1 Qc7 9. h3 Nf8 10. b3 g5 11. Bd3 Ng6 12. Ne2 g4 13. hxg4 Bxg4 14. Ng3 Nh4 15. Be2 Bxf3 16. Bxf3 O-O-O 17. Bg4+ Kb8 18. Bh3 Rdg8 19. Bb2 h5 20. c4 Ng4 21. b4 Ng6 22. c5 Nf4 23. cxd6 Bxd6 24. dxe5 Bxe5 25. Bxe5 Qxe5 26. Bxg4 Rxg4 27. Ra3 Rhg8 28. Rd3 Nxd3 29. Qxd3 h4 30. Nf5 Rxg2+ 31. Kf1 Rg1+ 32. Ke2 Qb2+ 33. Kf3 Rxe1 34. Qd6+ Ka8 0-1
2022.12.06 Titled Tue 6th Dec Early
1107064 Le Tuan Minh (2542) Koellner, Ruben Gideon (2417) 1/2-1/2
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. h3 Nf8 10. Be3 g5 11. Nh2 Ng6 12. Bb3 Kf8 13. a5 a6 14. Na4 Be6 15. Nb6 Rd8 16. Bxe6 fxe6 17. Qd3 Kg7 18. Rad1 Rhe8 19. Qb3 d5 20. dxe5 Nxe5 21. exd5 exd5 22. f4 gxf4 23. Bxf4 Bd6 24. Nf1 Ng6 25. Bxd6 Qxd6 26. Ng3 Re5 27. Rf1 Qc5+ 28. Kh1 Ne4 29. Nxe4 Rxe4 30. Qf3 Rf8 31. Qg3 Qe3 32. Qc7+ Re7 33. Qd6 Qe5 34. Qa3 Rxf1+ 35. Rxf1 Rf7 36. Rxf7+ Kxf7 37. Na4 Qe1+ 38. Kh2 Qe5+ 39. Kg1 Qd4+ 40. Kh2 Qf4+ 41. Qg3 Qxa4 42. Qc7+ Kf6 43. Qxb7 Qf4+ 44. Kh1 Qc1+ 45. Kh2 Qf4+ 46. Kh1 Qc4 47. b3 Qxc2 48. Qxa6 Qc1+ 49. Kh2 Qf4+ 50. Kh1 Qc1+ 51. Kh2 Nf4 52. Qc8 Qd2 53. Qf8+ Ke5 54. Qg7+ Ke4 55. a6 Qa2 56. a7 d4 57. Qe7+ Kd3 58. Qh7+ Ke3 59. Qe7+ Kd3 60. Qg7 Kc3 61. Qg3+ Nd3 62. Qb8 Nf4 63. Qxf4 Qxa7 64. Qxh6 Qc5 65. Qc1+ Kb4 66. Qb1 Qc3 67. h4 d3 68. h5 d2 69. Qe4+ Kxb3 70. Qe6+ Kc2 71. Qg6+ Kc1 72. Qg5 Kc2 73. Qg6+ Kc1 74. Qg5 Kb2 75. Qg4 Qe5+ 76. Kh3 Qe3+ 77. g3 Qe1 78. Qd4+ Kc1 79. Qc4+ Kb1 80. Qb3+ Kc1 81. Qc3+ Kb1 82. Qb3+ Kc1 83. Qc3+ Kd1 84. Qf3+ Qe2 85. Qh1+ Kc2 86. Qxc6+ Kb1 87. Qb6+ Kc1 88. Qc5+ Kb1 89. Qb4+ Kc2 90. Qc5+ Kd3 91. Qb5+ Ke3 92. Qe5+ Kf2 93. Qc5+ Ke1 94. Qa5 Qf1+ 95. Kh4 Ke2 96. Qb5+ Ke1 97. Qa5 Qh1+ 98. Kg5 Qe4 99. h6 Qe3+ 100. Kh5 Qe2+ 101. Kg6 Qe6+ 102. Kg7 Ke2 103. Qb5+ Ke1 104. Qb4 Ke2 105. Qb5+ Ke1 106. Qa5 Ke2 107. Qb5+ 1/2-1/2
2022.12.06 Titled Tue 6th Dec Early
1107199 Koellner, Ruben Gideon (2417) Abasov, N (2643) 1/2-1/2
1. d4 Nf6 2. Nf3 b6 3. Nbd2 Bb7 4. e3 e6 5. Bd3 d5 6. O-O c5 7. c3 Nbd7 8. Ne5 Nxe5 9. dxe5 Nd7 10. f4 g6 11. e4 Bg7 12. exd5 exd5 13. Nf3 O-O 14. Be3 Qc7 15. Re1 Rae8 16. Bb5 a6 17. Ba4 b5 18. Bb3 Nb6 19. Qd2 d4 20. cxd4 c4 21. Bc2 Bxf3 22. gxf3 Nd5 23. Be4 Rd8 24. f5 Rfe8 25. f6 Bf8 26. Bh6 Bb4 27. Qg5 Qb6 28. Red1 Nc7 29. Kg2 Rxd4 30. Qg3 Bc5 31. h4 Qe6 32. Bf4 Red8 33. Rxd4 Rxd4 34. h5 Qe8 35. hxg6 fxg6 36. Be3 Rxe4 37. fxe4 Bxe3 38. Qxe3 Qxe5 39. Rf1 Ne6 40. f7+ Kg7 41. Qc3 Qxc3 42. bxc3 Kf8 43. e5 a5 44. Rf6 Ng7 45. e6 Nf5 46. a3 Ne3+ 47. Kf3 Nd5 48. e7+ Nxe7 49. Ke4 h5 50. Rb6 h4 51. Rxb5 Kxf7 52. Rxa5 Kf6 53. Ra6+ Kg5 54. Ra7 Nf5 55. Rh7 Kg4 56. a4 h3 57. a5 Nh4 58. Rd7 h2 59. Rd1 Nf5 60. a6 Ng3+ 61. Ke5 Ne2 62. Rh1 Nxc3 63. a7 Ne2 64. a8=Q c3 65. Qg2+ Ng3 66. Rxh2 c2 67. Qxc2 g5 68. Qg2 1/2-1/2
2022.12.06 Titled Tue 6th Dec Early
1107250 Forgacs, Attila Jr. (2219) Koellner, Ruben Gideon (2417) 0-1
1. e4 d6 2. d3 Nf6 3. g3 e5 4. Bg2 Be7 5. Nc3 O-O 6. f4 Nc6 7. f5 Nd4 8. Nf3 c5 9. O-O h6 10. Nxd4 cxd4 11. Ne2 Bd7 12. h3 Rc8 13. Bd2 Qb6 14. b3 Rc5 15. c4 dxc3 16. Be3 d5 17. Bxc5 Bxc5+ 18. Kh2 d4 19. g4 Ba3 20. Ng3 Rc8 21. Qc2 Bb5 22. Rg1 Nd7 23. Nh5 f6 24. h4 Be7 25. Bf3 Nb8 26. Rg3 Kf7 27. Rag1 Rh8 28. Rh3 Na6 29. g5 fxg5 30. hxg5 Bxg5 31. f6 g6 32. Ng3 Qxf6 33. Bg4 Nb4 34. Qe2 Bxd3 35. Qg2 c2 36. a3 Nc6 37. Nf5 gxf5 38. Bh5+ Ke7 39. Rxd3 c1=Q 40. Rxc1 Bxc1 41. Rg3 Bf4 0-1
2022.12.06 Titled Tue 6th Dec Early
1107458 Koellner, Ruben Gideon (2417) Daneshvar, Bardiya (2500) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 O-O 5. c3 d6 6. Bc4 a6 7. O-O b5 8. Bb3 c5 9. Re1 Nc6 10. d5 Na5 11. Bc2 e5 12. a4 Bd7 13. b4 Nb7 14. a5 c4 15. Nf1 Kh8 16. Qe2 Ng8 17. N3d2 Qe7 18. f3 Nd8 19. Ne3 f6 20. g4 Bh6 21. Ndf1 Nf7 22. h4 Rae8 23. Ng2 Bxc1 24. Raxc1 Bc8 25. Ng3 Kg7 26. Qe3 Ngh6 27. Kf1 Qc7 28. Ke2 Re7 29. Kd2 Qa7 30. Qxa7 Rxa7 31. Rh1 Rh8 32. Ne3 Re7 33. Rcg1 Ree8 34. Ke2 Ng8 35. Kd2 Ne7 36. Ke2 Reg8 37. Kd2 Kf8 38. Rf1 h5 39. f4 hxg4 40. fxe5 fxe5 41. Bd1 Kg7 42. Bxg4 Nh6 43. Bxc8 Rxc8 44. h5 Rcf8 45. hxg6 Rxf1 46. Rxf1 Kxg6 47. Ngf5 Nhxf5 48. exf5+ Kf7 49. f6 Ng6 50. Nf5 Rh2+ 51. Kc1 Nf4 52. Nxd6+ Kxf6 53. Ne4+ Ke7 54. Kd1 Nxd5 55. Rg1 Ne3+ 56. Ke1 Ra2 57. Rg6 Nd5 58. Rxa6 Nf4 59. Rb6 Ng2+ 60. Kd1 Ne3+ 61. Kc1 Rc2+ 62. Kb1 Rh2 63. Rxb5 Ke6 64. a6 Rh8 65. a7 Ra8 66. Ra5 Kd7 67. b5 Kc7 68. Ra4 Kb6 69. Nd6 Nd5 70. Nxc4+ Kxb5 71. Nb6 Nxb6 72. Re4 Nc4 73. Kc2 Rxa7 74. Kb3 Ra3+ 75. Kc2 Ra2+ 76. Kd3 Rd2# 0-1
2022.12.06 Titled Tue 6th Dec Early
1107547 Koellner, Ruben Gideon (2417) Sadilek, P (2299) 1-0
1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d6 4. f3 Nf6 5. e4 Nbd7 6. Nc3 e5 7. Be3 Be7 8. Qd2 c6 9. Nge2 O-O 10. O-O-O b5 11. Kb1 Qa5 12. Nd5 Qd8 13. Nxe7+ Qxe7 14. g4 Nb6 15. Ng3 Be6 16. Nf5 Bxf5 17. gxf5 Kh8 18. Rg1 Rfd8 19. Qg2 Rg8 20. Qf2 exd4 21. Bxd4 c5 22. Bc3 b4 23. Bd2 Rad8 24. Bf4 d5 25. e5 Nh5 26. Bg5 f6 27. exf6 Nxf6 28. Re1 Qf7 29. Re6 d4 30. Qh4 Nbd5 31. Bc4 Rde8 32. Rge1 Rxe6 33. fxe6 Qg6 34. Bxf6 Nxf6 35. e7 Rb8 36. Qf4 Rc8 37. Qd6 Re8 38. Bb5 d3 39. cxd3 h6 40. Bxe8 Qxe8 41. Qd8 Kg8 42. Qxe8+ Nxe8 43. Re5 Kf7 44. Rxc5 Kxe7 45. Rc4 a5 46. Rc5 1-0
2022.12.06 Titled Tue 6th Dec Early
1107651 Ozen, Bahadir (2369) Koellner, Ruben Gideon (2417) 1-0
1. g3 d5 2. Nf3 Nf6 3. Bg2 Nbd7 4. O-O e5 5. d3 c6 6. e4 Bd6 7. Nbd2 O-O 8. b3 a5 9. a3 a4 10. b4 b5 11. Bb2 d4 12. c3 c5 13. cxd4 cxd4 14. Rc1 Nb6 15. Nh4 Ne8 16. Nf5 f6 17. f4 Be6 18. Nxd6 Nxd6 19. Nf3 Nd7 20. Qd2 Rc8 21. Rxc8 Qxc8 22. Rc1 Qb8 23. h3 Rc8 24. fxe5 fxe5 25. Ng5 Bb3 26. h4 h6 27. Bh3 hxg5 28. Bxd7 Rxc1+ 29. Bxc1 Qd8 30. Bg4 gxh4 31. Qf2 hxg3 32. Qxg3 Qf6 33. Bg5 Qg6 34. Qxe5 Nf7 35. Qe8+ 1-0
2022.12.06 Titled Tue 6th Dec Early
1107772 Jaskolka, T (2188) Koellner, Ruben Gideon (2417) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Be6 7. Bxe6 fxe6 8. f3 Bd6 9. Be3 Ke7 10. O-O-O Nc6 11. Nh3 a6 12. Nf2 b5 13. Nd3 Nd7 14. h4 Rhb8 15. h5 a5 16. h6 g6 17. Bg5+ Kf7 18. Nf2 a4 19. Kb1 b4 20. Ne2 b3 21. cxb3 axb3 22. a3 Ra4 23. Nc3 Rc4 24. Ng4 Nd4 25. Rd3 Nc6 26. Rf1 Nc5 27. Rd2 Na4 28. Nxa4 Rxa4 29. f4 exf4 30. Bxf4 Bxf4 31. Rxf4+ Ke7 32. Rdf2 Nd8 33. Nf6 Rd4 34. e5 Rd1# 0-1
2022.12.06 Titled Tue 6th Dec Early
1107935 Koellner, Ruben Gideon (2417) Andreikin, D (2729) 0-1
1. d4 d5 2. Nf3 Nf6 3. Nbd2 c5 4. e3 Nc6 5. c3 g6 6. dxc5 Bg7 7. Bd3 O-O 8. O-O Bg4 9. h3 Bxf3 10. Nxf3 Nd7 11. e4 d4 12. cxd4 Nxd4 13. Be3 Nxc5 14. Bc2 e5 15. Bxd4 exd4 16. Bd3 Qb6 17. b3 Rac8 18. Rc1 Nxd3 19. Qxd3 Rc3 20. Rxc3 dxc3 21. e5 Rc8 22. Rc1 Qc5 23. Qe4 c2 24. Ne1 Qxe5 25. Qxe5 Bxe5 26. Rxc2 Rd8 27. Kf1 Kf8 28. Ke2 Ke7 29. Nd3 Bd6 30. Rc4 f5 31. Ne1 Kf6 32. Nc2 Re8+ 33. Kf3 g5 34. Ne3 h5 35. g3 g4+ 36. hxg4 hxg4+ 37. Ke2 Ke6 38. Kd3 Rh8 39. Rc2 Be5 40. Nc4 Bc7 41. Re2+ Kf6 42. Ne3 Rd8+ 43. Kc2 Bb6 44. Rd2 Rc8+ 45. Kd3 Bc5 46. Rc2 Rd8+ 47. Ke2 b6 48. Rd2 Re8 49. Rd7 f4 50. gxf4 g3 51. Kf3 gxf2 52. Ng4+ Kf5 53. Nxf2 Re3+ 54. Kg2 Re2 55. Rf7+ Kg6 56. Rxa7 Rxf2+ 57. Kg3 Kf5 58. Rf7+ Ke4 59. Ra7 Rf3+ 0-1
2022.12.06 Titled Tue 6th Dec Early
1107991 Estrada Nieto, J (2231) Koellner, Ruben Gideon (2417) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. b3 Nf8 10. Bb2 Ng6 11. a5 O-O 12. h3 Re8 13. Qd2 Bf8 14. d5 Rb8 15. b4 a6 16. Bb3 Nf4 17. Qe3 cxd5 18. Nxd5 N6xd5 19. exd5 Bd7 20. c4 b6 21. axb6 Qxb6 22. Qxb6 Rxb6 23. Bc3 Nd3 24. Reb1 Nxb4 25. c5 dxc5 26. Nxe5 Bf5 27. Rd1 Nc2 28. Bxc2 Bxc2 29. Rd2 Bb3 30. Rb1 Reb8 31. Nd7 Bd6 32. Nxb6 Rxb6 33. Re2 c4 34. Bd4 Rb5 35. Be5 Rxd5 36. Bxd6 Rxd6 37. Re8+ Kh7 38. Rc8 a5 39. Ra8 a4 40. Rc1 Rc6 41. Rc3 Rd6 42. Ra7 Rd3 43. Rxd3 cxd3 0-1
2022.12.06 Titled Tue 6th Dec Early
1108089 Chigaev, M (2632) Koellner, Ruben Gideon (2417) 1-0
1. Nf3 d6 2. e4 Nf6 3. Nc3 e5 4. d4 Nbd7 5. Rg1 c6 6. g4 h6 7. Be3 b5 8. a3 Qa5 9. Nd2 Qc7 10. h4 Bb7 11. g5 hxg5 12. hxg5 Nh5 13. g6 fxg6 14. Rxg6 O-O-O 15. d5 a6 16. dxc6 Bxc6 17. Nd5 Qb7 18. c4 Nhf6 19. Nb3 bxc4 20. Na5 Qa8 21. Rc1 Bxd5 22. exd5 Qxd5 23. Rxc4+ Nc5 24. Qxd5 Nxd5 25. b4 Nxe3 26. fxe3 Rh6 27. Rxh6 gxh6 28. bxc5 dxc5 29. Rg4 Kc7 30. Rg6 Rd6 31. Rxd6 Kxd6 32. Bxa6 Kc7 33. Be2 Kb6 34. Nc4+ Kb5 35. Nxe5+ Ka4 36. Nc4 Kb3 37. Kd2 Bg7 38. Kd3 Ka4 39. Bd1+ Kb5 40. Bh5 Ka4 41. Be8+ Kb3 42. a4 Kb4 43. a5 Be5 44. Nxe5 Kxa5 45. Kc4 1-0
2022.12.06 Titled Tue 6th Dec Late
1108203 Koellner, Ruben Gideon (2417) Bernat, David (1862) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 e5 11. e4 d4 12. cxd4 Nxd4 13. Bxd4 exd4 14. e5 Bxb4 15. exf6 Qxf6 16. Bxh7+ Kxh7 17. Qb1+ Bf5 18. Qxb4 Rfd8 19. Qxb7 a5 20. Rfc1 Rab8 21. Qc7 a4 22. Qe5 Qxe5 23. Nxe5 Rb2 24. Nec4 Rc2 25. Rxc2 Bxc2 26. Rc1 Bd3 27. Ne5 Bg6 28. Nxg6 Kxg6 29. g3 Rb8 30. Rc6+ f6 31. Nc4 Rb1+ 32. Kg2 Ra1 33. a3 Kf7 34. Rd6 Rd1 35. Nb2 Rd2 36. Nxa4 Ke7 37. Ra6 Ra2 38. Nc5 Rc2 39. Nd3 Rc3 40. Nf4 Rc5 41. Ra4 d3 42. Nxd3 Rc3 43. Nf4 Kf7 44. Ra7+ Kf8 45. Ne6+ Ke8 46. Nxg7+ Kd8 47. Nf5 1-0
2022.12.06 Titled Tue 6th Dec Late
1108282 Burke, Paul Koellner, Ruben Gideon (2417) 0-1
1. e4 d6 2. Nc3 Nf6 3. g3 e5 4. Bg2 c5 5. Nge2 Nc6 6. O-O Be7 7. h3 O-O 8. Nd5 Nxd5 9. exd5 Nd4 10. c3 Nxe2+ 11. Qxe2 Bd7 12. f4 Bf6 13. d3 Qb6 14. Kh2 Rae8 15. Qc2 Bb5 16. c4 Bd7 17. Rb1 a5 18. b3 g6 19. Bb2 Qd8 20. fxe5 Bxe5 21. Bxe5 Rxe5 22. Rbe1 Qe7 23. Rxe5 Qxe5 24. Qf2 f5 25. Re1 Qf6 26. Re6 Bxe6 27. dxe6 Kg7 28. Bd5 Re8 29. Qe2 Qe5 30. Qf2 Rxe6 31. Bxe6 Qxe6 32. Qf3 Qf7 33. Qf4 Qe7 34. Qf3 h6 35. Kg2 Qd7 36. Qf4 g5 37. Qf3 Qc6 38. Qxc6 bxc6 39. Kf3 Kf6 40. h4 Ke5 41. hxg5 hxg5 42. Ke2 Kd4 0-1
2022.12.06 Titled Tue 6th Dec Late
1108469 Koellner, Ruben Gideon (2417) Quesada Perez, Yu (2583) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 Nc6 5. Nbd2 cxd4 6. exd4 Bf5 7. Nh4 Bg6 8. Nxg6 hxg6 9. Bd3 e6 10. Nf3 Bd6 11. O-O Ne4 12. h3 f5 13. Re1 Qc7 14. Ng5 Qe7 15. Nxe4 dxe4 16. Bb5 a6 17. Bxc6+ bxc6 18. Qa4 Qd7 19. b3 Kf7 20. Ba3 Bc7 21. Rad1 g5 22. c4 Rad8 23. Bc5 Rh4 24. Qxa6 g4 25. hxg4 Rdh8 26. Kf1 Rxg4 27. g3 Rh2 28. d5 cxd5 29. cxd5 exd5 30. a4 f4 31. gxf4 Rg6 32. Qb5 Qg4 0-1
2022.12.06 Titled Tue 6th Dec Late
1108644 Storey, Ch (2138) Koellner, Ruben Gideon (2417) 0-1
1. e4 d6 2. d4 Nf6 3. f3 e5 4. d5 Be7 5. Be3 O-O 6. Qd2 c6 7. c4 b5 8. b3 bxc4 9. bxc4 Ba6 10. Nh3 cxd5 11. cxd5 Bxf1 12. Rxf1 Nbd7 13. Nc3 Qa5 14. Ne2 Qa4 15. Kf2 Rfc8 16. Rfc1 Nb6 17. Bxb6 axb6 18. Rxc8+ Rxc8 19. Rc1 Rxc1 20. Nxc1 Nd7 21. Nb3 Nc5 22. Qc2 g6 23. Ng1 b5 24. Ne2 Bd8 25. Nc3 Qc4 26. Na1 Bb6 27. Kg3 f5 28. Kh3 Nd3 29. Ne2 Qxc2 30. Nxc2 fxe4 31. fxe4 Nf2+ 32. Kh4 Nxe4 33. Nb4 Bc5 34. Na6 Kf7 35. Nc1 Ke7 36. Nd3 Bd4 37. Nab4 Nf6 38. Nc6+ Kd7 39. Nxd4 exd4 40. Nb4 Kc7 41. Kg5 Ne4+ 42. Kh6 Nc5 43. Kxh7 d3 44. Nxd3 Nxd3 45. Kxg6 Nf4+ 46. Kf5 Nxg2 47. Ke4 Kb6 48. Kf3 Nh4+ 49. Kg4 Ng6 50. Kf5 Nh4+ 51. Kg4 Ng6 52. Kf5 Ne5 53. h4 Kc5 54. h5 Nf7 55. Kf6 Nh6 56. Kg6 Ng4 57. Kg5 Ne5 58. Kf6 Kxd5 59. Kf5 Nf7 60. Kf6 Nh6 61. Kg5 Ng8 62. Kg6 Ke6 63. Kg7 Nf6 64. h6 d5 65. Kg6 d4 0-1
2022.12.06 Titled Tue 6th Dec Late
1108658 Yoo, Christopher Woojin (2575) Koellner, Ruben Gideon (2417) 1-0
1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. e3 Be7 5. b3 O-O 6. Bb2 c5 7. cxd5 Nxd5 8. Qc2 Nxc3 9. Bxc3 Nc6 10. h4 h6 11. h5 Bf6 12. Be2 Nb4 13. Qb2 Nd5 14. Bxf6 Qxf6 15. Qxf6 gxf6 16. d4 cxd4 17. Nxd4 Bd7 18. Bf3 Bc6 19. Nxc6 bxc6 20. O-O-O a5 21. Rh4 Rfb8 22. Rc4 a4 23. bxa4 Rb4 24. Bxd5 1-0
2022.12.06 Titled Tue 6th Dec Late
1108872 Koellner, Ruben Gideon (2417) Moral Garcia, S (2219) 1/2-1/2
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 dxc4 7. Bxc4 c6 8. O-O Nbd7 9. Bb2 Nb6 10. Be2 a5 11. bxa5 Rxa5 12. Qb3 Ra8 13. a4 Be6 14. Qc2 Nbd5 15. Ba3 Re8 16. Rfb1 Qc8 17. Bc4 Nc7 18. Qb3 Rb8 19. a5 Bxc4 20. Nxc4 Nb5 21. Bc5 Qe6 22. Nb6 Qxb3 23. Rxb3 Bf8 24. Ne5 Kg7 25. h3 Red8 26. Kf1 Nd5 27. Nxd5 Rxd5 28. Nd3 Ra8 29. Nb4 Rd7 30. a6 e6 31. Bxf8+ Kxf8 32. Ke2 bxa6 33. Nxc6 Rc7 34. Ne5 Rb7 35. Kd3 Ke7 36. Nc6+ Kd6 37. Na5 Rbb8 38. Nc4+ Kc7 39. Ne5 f6 40. Ng4 f5 41. Ne5 Rc8 42. Kd2 Kb7 43. Nd3 Kb6 44. Nc5 Rc6 45. Na4+ Kb7 46. Nc5+ Kb6 47. Kd3 Ra7 48. Rb4 e5 49. Rba4 exd4 50. exd4 a5 51. Rc4 Nd6 52. Na4+ Kc7 53. Rxc6+ Kxc6 54. Nc3 Nb5 55. Ra4 Nxc3 56. Kxc3 Kb5 57. Ra1 Rc7+ 58. Kd3 a4 59. d5 Ka5 60. Kd4 Rc2 61. d6 Rd2+ 62. Ke5 Kb4 63. Ke6 a3 64. d7 Kb3 65. Ke7 Re2+ 66. Kf8 Rd2 67. Ke8 Re2+ 68. Kf7 Rd2 69. Ke7 Re2+ 70. Kd6 Rd2+ 71. Kc7 Rc2+ 72. Kd6 Rd2+ 73. Ke6 Re2+ 74. Kf7 Rd2 75. Ke8 Re2+ 76. Kf8 Rd2 77. Ke7 1/2-1/2
2022.12.06 Titled Tue 6th Dec Late
1108901 Omelja, A (2443) Koellner, Ruben Gideon (2417) 1-0
1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. c3 Nbd7 5. f4 d5 6. fxe5 Nxe4 7. Nf3 f6 8. O-O fxe5 9. Bxe4 dxe4 10. Ng5 Nf6 11. Qb3 Qd5 12. dxe5 Qxb3 13. axb3 Ng4 14. Nxe4 Nxe5 15. Bf4 Bd6 16. Nxd6+ cxd6 17. Re1 O-O 18. Bxe5 dxe5 19. Rxe5 Bf5 20. Nd2 a6 21. Nf3 Rad8 22. Nd4 Bd7 23. Rae1 Rfe8 24. Rxe8+ Rxe8 25. Rxe8+ Bxe8 26. Kf2 Kf7 27. Ke3 Ke7 28. Kf4 Kf6 29. h4 Bd7 30. g4 h6 31. g5+ hxg5+ 32. hxg5+ Kg6 33. b4 Bc8 34. Nf3 Kh5 35. Ne5 Be6 36. Nd3 Bd5 37. Nc5 Bc6 38. Ne6 Kg6 39. c4 Bg2 40. Kg4 Bf1 41. Nf4+ Kf7 42. c5 Bb5 43. Kf5 Bd7+ 44. Ke5 Ke7 45. Ng6+ Kf7 46. Kd6 Bc6 47. Ne5+ 1-0
2022.11.29 Titled Tue 29th Nov Early
1113590 Koellner, Ruben Gideon (2412) Sovetbekova, Nurai (2025) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 c5 5. c3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 e5 11. e4 Bg4 12. h3 Bh5 13. exd5 Nxd5 14. Qc2 Bg6 15. Bxg6 hxg6 16. Rfd1 Qc7 17. Ne4 Nce7 18. Qb3 Rfd8 19. c4 Nxb4 20. Nxd6 Rxd6 21. Qxb4 Rxd1+ 22. Rxd1 Nc6 23. Qd6 Qb6 24. Qa3 Na5 25. c5 Qb5 26. Bxe5 Re8 27. Bd6 Nc4 28. Qb3 Nxd6 29. cxd6 Qc6 30. Qd5 Qd7 31. Ne5 Qe6 32. Qxe6 fxe6 33. d7 Rd8 34. Rc1 Kf8 35. Rc7 Ke7 36. Rxb7 a5 37. Nc6+ 1-0
2022.11.29 Titled Tue 29th Nov Early
1113726 Sadhwani, Raunak (2628) Koellner, Ruben Gideon (2412) 1-0
1. Nf3 d6 2. d4 Nf6 3. Nc3 Nbd7 4. e4 e5 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. h3 Nf8 10. Nh4 g6 11. Nf3 g5 12. a5 Ng6 13. d5 g4 14. hxg4 Bxg4 15. Be2 cxd5 16. Nxd5 Nxd5 17. Qxd5 Be6 18. Qd1 Kf8 19. c3 Kg7 20. Be3 Qc6 21. Bd3 Bg4 22. a6 b6 23. Nd4 Bxd1 24. Nxc6 Bg4 25. Bc4 Be6 26. Bxe6 fxe6 27. Red1 Kf7 28. b4 Rhc8 29. b5 Bf8 30. c4 Ne7 31. Rxd6 Nxc6 32. Rxc6 Rxc6 33. bxc6 Rc8 34. Bxb6 Ra8 35. c7 Bd6 36. Rd1 Ke7 37. c5 axb6 38. cxd6+ Kd7 39. Rc1 1-0
2022.11.29 Titled Tue 29th Nov Early
1113981 Koellner, Ruben Gideon (2412) Kashtanov, R (2376) 1-0
1. d4 Nf6 2. Nf3 b5 3. Nbd2 Bb7 4. e3 a6 5. Bd3 e6 6. O-O c5 7. c3 Be7 8. a4 b4 9. Qe2 Nc6 10. Nc4 O-O 11. Bd2 d5 12. Nce5 c4 13. Bc2 bxc3 14. Nxc6 Bxc6 15. bxc3 Rb8 16. Ne5 Qc7 17. Rfb1 Ba8 18. f4 g6 19. Qd1 Ne4 20. Bxe4 dxe4 21. Rxb8 Rxb8 22. Rb1 Bd5 23. Qc2 f6 24. Ng4 Rb3 25. Bc1 Qb6 26. Ra1 h5 27. Nf2 Qb7 28. g3 Kf7 29. Kg2 a5 30. h3 Bd6 31. g4 hxg4 32. hxg4 Qa8 33. Bd2 Qh8 34. Rh1 Qg8 35. Bc1 Kg7 36. Kg1 f5 37. g5 Qb8 38. Nd1 Rb1 39. Rh2 Qb3 40. Kf1 Qxc2 41. Rxc2 Bc6 42. Ke1 Bxa4 43. Kd2 Bxc2 44. Kxc2 Rb3 45. Nb2 Rb8 46. Nxc4 Bc7 47. Ba3 Rh8 48. Kb3 Kf7 49. Bc5 Rh3 50. Ka4 Ke8 51. Kb5 Kd7 52. Bb6 Bxb6 53. Nxb6+ Kc7 54. Nc4 a4 55. Kxa4 Kc6 56. Kb4 Rh1 57. Ne5+ Kd5 58. c4+ Kd6 59. Nxg6 Rb1+ 60. Kc3 Rc1+ 61. Kd2 Rxc4 62. Ne5 Rc7 63. g6 1-0
2022.11.29 Titled Tue 29th Nov Early
1114102 Delorme, Al (2286) Koellner, Ruben Gideon (2412) 0-1
1. d4 d6 2. Nf3 Nf6 3. g3 Nbd7 4. Bg2 e5 5. O-O Be7 6. c4 O-O 7. Nc3 Re8 8. h3 c6 9. Re1 Qc7 10. e4 h6 11. Be3 a6 12. Qd2 Nf8 13. Rac1 Ng6 14. b4 Qb8 15. a4 Bf8 16. b5 axb5 17. axb5 Bd7 18. c5 dxc5 19. dxe5 Nxe5 20. Nxe5 Qxe5 21. Bf4 Qd4 22. e5 Qxd2 23. Bxd2 Nh7 24. bxc6 Bxc6 25. Bxc6 bxc6 26. f4 Rad8 27. Be3 Rd3 28. Ne4 f6 29. Nxc5 Bxc5 30. Bxc5 Rxg3+ 31. Kh2 Rd3 32. Bd6 fxe5 33. Bxe5 Re6 34. h4 Nf6 35. Rg1 Kf7 36. Rc5 Rd5 37. Rxd5 cxd5 38. Rd1 Ng4+ 39. Kg3 Nxe5 40. fxe5 Rxe5 41. Kf4 Re4+ 42. Kg3 Ke6 43. h5 d4 44. Kf3 Rh4 45. Rg1 Kf6 46. Rg6+ Kf7 47. Rd6 Rxh5 48. Rxd4 Rf5+ 49. Kg4 Rg5+ 50. Kh4 Kg6 51. Rd6+ Kh7 52. Rd7 Rg6 53. Kh5 Ra6 54. Rc7 Ra5+ 55. Kh4 h5 56. Rc6 g6 57. Rd6 Kh6 58. Rc6 Ra4+ 59. Kg3 h4+ 60. Kh3 Kh5 61. Rc5+ g5 62. Rb5 Ra3+ 63. Kh2 h3 64. Rc5 Kh4 65. Rc4+ g4 66. Rb4 Ra2+ 67. Kh1 Re2 68. Kg1 Kg3 69. Rb3+ Kf4 70. Rb4+ Kf3 71. Rb3+ Re3 72. Rb8 Re1+ 73. Kh2 g3+ 74. Kxh3 Rh1# 0-1
2022.11.29 Titled Tue 29th Nov Early
1114318 Koellner, Ruben Gideon (2412) Rustemov, A (2525) 0-1
1. d4 f5 2. Bg5 g6 3. Nc3 Bg7 4. h4 Nf6 5. e3 h6 6. Bxf6 Bxf6 7. Qf3 e6 8. g4 d5 9. gxf5 gxf5 10. Nh3 c6 11. Nf4 Qc7 12. Be2 Kd8 13. O-O-O Qf7 14. Rdg1 Nd7 15. Qg2 e5 16. Bh5 Qh7 17. Nfe2 Kc7 18. Bg6 Qe7 19. Bxf5 Nb6 20. Bxc8 Raxc8 21. Qf3 Rcf8 22. Qg3 Nc4 23. Kb1 Rhg8 24. Qxg8 Rxg8 25. Rxg8 exd4 26. Nxd4 Qb4 27. Nd1 Bxd4 28. exd4 Qd2 29. Rhg1 Kb6 30. R8g3 a5 31. Rb3+ Ka6 32. Rd3 Qe2 33. f4 Nd2+ 34. Kc1 Nf3 35. Rh1 Qg2 36. f5 Qxh1 37. f6 Qf1 38. f7 Ne1 39. Re3 Ng2 40. Rg3 Qxf7 41. Rxg2 Qf4+ 42. Rd2 Qxh4 43. b3 Qf4 44. c3 h5 45. Kc2 h4 46. Nf2 Qf3 47. Nd3 h3 48. Nc5+ Ka7 49. Ne6 Qf5+ 50. Kb2 Qxe6 51. a4 Qg4 52. Ka3 Qg2 53. Rd3 h2 54. b4 h1=Q 55. bxa5 Qa1+ 56. Kb4 Qgb2+ 57. Kc5 Qxc3+ 58. Kd6 Qxd3 59. Kc7 Qdxd4 60. a6 Qdxa4 61. axb7 Qb5 62. Kd6 Qxb7 63. Kc5 d4 64. Kd6 d3 65. Kc5 Qb5+ 66. Kd6 Qd5+ 67. Kc7 Qaa5+ 68. Kc8 Qdd8# 0-1
2022.11.29 Titled Tue 29th Nov Early
1114437 Mikhalsky, Vladimir (2269) Koellner, Ruben Gideon (2412) 0-1
1. d4 d6 2. e4 Nf6 3. f3 e5 4. d5 Be7 5. c4 O-O 6. b3 c6 7. Bb2 cxd5 8. cxd5 Nbd7 9. Bd3 Nc5 10. Bc2 b5 11. b4 Ncd7 12. Nc3 a6 13. a4 bxa4 14. Bxa4 Nb6 15. Bc6 Rb8 16. Qd3 Nh5 17. Nge2 f5 18. O-O f4 19. b5 axb5 20. Nxb5 g5 21. h3 Nf6 22. Na7 h5 23. Nxc8 Nxc8 24. Bc3 g4 25. Ba5 Nb6 26. Rfb1 Qc7 27. Qb5 Bd8 28. Nc3 Qc8 29. Na4 Nbd7 30. Bb7 Qc2 31. Bxd8 Rfxd8 32. Qb2 Qd3 33. Rd1 Qe3+ 34. Kh1 gxf3 35. Ra3 Qxe4 36. gxf3 Qf5 37. Qg2+ Kh7 38. Bc6 Rg8 39. Qh2 Rg3 40. Bxd7 Nxd7 41. Nc3 Rxh3 42. Ra7 Rg8 0-1
2022.11.29 Titled Tue 29th Nov Early
1114621 Koellner, Ruben Gideon (2412) Ivic, Velimir (2560) 0-1
1. d4 Nf6 2. Bg5 Ne4 3. Bf4 g6 4. f3 Nf6 5. e4 d6 6. Nc3 Bg7 7. Qd2 c6 8. O-O-O Nbd7 9. Bh6 Bxh6 10. Qxh6 Qa5 11. g4 b5 12. Kb1 b4 13. Nce2 Ba6 14. h4 c5 15. h5 Rg8 16. hxg6 hxg6 17. Qe3 c4 18. Nc1 Nb6 19. Nh3 c3 20. Bxa6 Qxa6 21. b3 Qb5 22. Qe2 Qd7 23. Nf4 g5 24. Nh5 Nxh5 25. Rxh5 a5 26. Rdh1 Qc6 27. Rh8 Kd7 28. Rxg8 Rxg8 29. Rh7 Rf8 30. Qa6 Ra8 31. Qe2 Rf8 32. Qe3 a4 33. Rh2 axb3 34. cxb3 Qb5 35. Qd3 Qa5 36. Qc2 Ra8 37. Rh7 f6 38. Nd3 Qb5 39. Rh1 Rf8 40. Nc1 Nc8 41. Qe2 Qb6 42. Qc4 Na7 43. Nd3 Nc6 44. d5 Ne5 45. Qxb4 Qxb4 46. Nxb4 Nxf3 47. Kc2 Ne5 48. Kxc3 Nxg4 49. a4 Rc8+ 50. Nc6 Ne5 51. b4 Nxc6 52. dxc6+ Rxc6+ 53. Kd4 Rc2 54. Ra1 Kc6 55. a5 Kb5 56. a6 Rc8 57. a7 Ra8 58. Kd5 g4 59. Ke6 g3 60. Kxe7 g2 61. Kxf6 Rxa7 62. Rg1 Ra2 63. Ke6 Rd2 64. e5 d5 65. Kf5 d4 66. Ke4 Kc4 67. e6 d3 68. Kf3 Re2 69. Rxg2 Rxe6 70. Rg4+ Kc3 71. b5 d2 72. Rg1 Kc2 73. b6 d1=Q+ 74. Rxd1 Kxd1 75. b7 Rb6 76. Ke4 Rxb7 77. Kd5 Rb2 78. Kc4 Rd2 79. Kc3 Ke2 80. Kc4 Rd3 81. Kc5 Re3 82. Kc6 Kd3 83. Kc7 Kd4 84. Kd8 Kd5 85. Kd7 Re6 86. Kd8 Kc6 87. Kc8 Re8# 0-1
2022.11.29 Titled Tue 29th Nov Early
1114686 Chernov, Mi2 (2213) Koellner, Ruben Gideon (2412) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. Re1 h6 8. a4 Qc7 9. h3 Nf8 10. Qe2 g5 11. dxe5 dxe5 12. Nd2 Ng6 13. Nf1 g4 14. hxg4 Bxg4 15. f3 Bd7 16. Ng3 Nf4 17. Bxf4 exf4 18. Nf5 Bc5+ 19. Kh2 O-O-O 20. Rab1 Bxf5 21. exf5 Be3 22. Rbd1 Qe5 23. Rxd8+ Rxd8 24. Bd3 Nh5 25. Ne4 Qe7 26. Nf2 Qh4+ 27. Nh3 Kc7 28. Rd1 Qg3+ 29. Kh1 Qh4 30. Qe1 Ng3+ 31. Kh2 Qf6 32. Be4 Rxd1 33. Qxd1 Qxb2 34. Qd3 Qc1 0-1
2022.11.29 Titled Tue 29th Nov Early
1114767 Koellner, Ruben Gideon (2412) Kezin, R (2514) 0-1
1. d4 h5 2. Nf3 h4 3. h3 Nf6 4. Bg5 d5 5. Bxh4 Ne4 6. Nbd2 f6 7. e3 g5 8. Bg3 Nxg3 9. fxg3 g4 10. Ng1 Nc6 11. Bd3 Qd6 12. Kf2 e5 13. c3 Be6 14. Bg6+ Kd7 15. Bd3 Bh6 16. h4 e4 17. Bb5 Bxe3+ 18. Kxe3 Qxg3+ 19. Ngf3 f5 20. Qe1 f4+ 21. Ke2 Qxg2+ 22. Qf2 gxf3+ 23. Nxf3 exf3+ 24. Ke1 Rae8 0-1
2022.11.29 Titled Tue 29th Nov Early
1114891 Bogaudinov, R (2003) Koellner, Ruben Gideon (2412) 0-1
1. a3 d6 2. d4 e5 3. dxe5 dxe5 4. Qxd8+ Kxd8 5. Nc3 Be6 6. g3 c6 7. Bg2 Kc7 8. f4 Nd7 9. Nf3 f6 10. Be3 Nh6 11. h3 Nf5 12. Bf2 Bc5 13. e4 Bxf2+ 14. Kxf2 Nd6 15. b3 Rhd8 16. Rad1 b5 17. h4 Bg4 18. Bh3 Bxf3 19. Kxf3 Nc5 20. Ke3 a5 21. fxe5 fxe5 22. Rhf1 b4 23. axb4 axb4 24. Na4 Nxa4 25. bxa4 Rxa4 26. Be6 Ra3+ 27. Rd3 Rxd3+ 28. cxd3 Ra8 29. Rf8 Rxf8 0-1
2022.11.29 Titled Tue 29th Nov Early
1115053 Koellner, Ruben Gideon (2412) Rian, K (2089) 1-0
1. d4 f5 2. Bg5 h6 3. Bh4 g5 4. Bg3 f4 5. e3 Nf6 6. exf4 d6 7. fxg5 hxg5 8. Nf3 Bg4 9. Be2 Bh6 10. c3 Nc6 11. Nbd2 Qd7 12. Qb3 O-O-O 13. O-O-O e6 14. Kb1 Kb8 15. Bd3 Bf5 16. Qc2 Nd5 17. a3 Rhf8 18. Rhe1 a6 19. Nc4 Rde8 20. Nfd2 g4 21. Ne3 Bxd3 22. Qxd3 Nxe3 23. fxe3 Qg7 24. Rf1 Rxf1 25. Rxf1 Rf8 26. Rxf8+ Qxf8 27. Qf1 Qg7 28. Bf4 Qg6+ 29. e4 Bg7 30. Qd3 d5 31. Kc2 Kc8 32. exd5 Qxd3+ 33. Kxd3 exd5 34. Nf1 Ne7 35. Ne3 Ng6 36. Bg3 c6 37. Nxg4 Kd7 38. Ne5+ Bxe5 39. Bxe5 Ke6 40. Bg3 Kf5 41. Ke3 b5 42. Kf3 a5 43. Bf2 a4 44. h4 Ne7 45. g4+ Kg6 46. Kf4 1-0
2022.11.29 Titled Tue 29th Nov Late
1115169 Sariego, W (2318) Koellner, Ruben Gideon (2412) 0-1
1. d4 d6 2. Bf4 Nf6 3. Nc3 Nc6 4. e4 e5 5. dxe5 dxe5 6. Be3 Qxd1+ 7. Rxd1 Bb4 8. f3 Bxc3+ 9. bxc3 Be6 10. a3 Rd8 11. Rxd8+ Kxd8 12. Bb5 Bd7 13. Ne2 Ne8 14. O-O Nd6 15. Bxc6 Bxc6 16. Rd1 Ke7 17. Ng3 g6 18. Bc5 b6 19. Bb4 Ke6 20. Bxd6 cxd6 21. Kf2 Rc8 22. Ke3 Bb5 23. Kd2 f5 24. Rb1 Bc6 25. Kd3 Bb7 26. c4 Rc5 27. a4 Ra5 28. Rb4 Bc6 29. Kc3 Rxa4 30. Rxa4 Bxa4 31. Kb4 Bc6 32. h4 a5+ 33. Kc3 f4 34. Nh1 Kf6 35. Nf2 Bd7 36. Nd3 Kg7 37. Nf2 Kh6 38. Nd1 Kh5 39. Nf2 Kxh4 40. Nh1 h5 41. Kb2 g5 42. Kc3 g4 0-1
2022.11.29 Titled Tue 29th Nov Late
1115304 Koellner, Ruben Gideon (2412) Van Foreest, Jorden (2690) 0-1
1. d4 Nf6 2. Bg5 d5 3. e3 c5 4. Bxf6 gxf6 5. dxc5 e6 6. c4 dxc4 7. Nd2 c3 8. bxc3 Nd7 9. c6 bxc6 10. Ngf3 f5 11. Be2 Bg7 12. Rc1 O-O 13. Nd4 c5 14. Nc6 Qg5 15. Bf3 Bb7 16. Ne7+ Qxe7 17. Bxb7 Rab8 18. Bf3 Ne5 19. O-O Nd3 20. Rc2 Rfd8 21. Qe2 Qd7 22. Nb3 c4 23. Nd4 Rb6 24. g3 e5 25. Nc6 Rxc6 26. Bxc6 Qxc6 27. Qh5 Qg6 28. Qh4 Rc8 29. Qe7 f4 30. exf4 exf4 31. Re2 Qf5 32. Qb7 Rf8 33. Qe4 Qxe4 34. Rxe4 Rc8 35. Rb1 Bxc3 36. Rb7 Bf6 37. Rd7 c3 38. Rxd3 c2 39. Re1 c1=Q 40. Rxc1 Rxc1+ 41. Kg2 Rc2 42. gxf4 Rxa2 0-1
2022.11.29 Titled Tue 29th Nov Late
1115530 Gatterer, F (2169) Koellner, Ruben Gideon (2412) 0-1
1. c4 d6 2. Nc3 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 O-O 6. b3 Nbd7 7. d4 e5 8. Bb2 Re8 9. dxe5 Nxe5 10. Nxe5 dxe5 11. Qxd8 Rxd8 12. Nd5 Nxd5 13. cxd5 f6 14. Rc1 Rd7 15. e4 Bf8 16. O-O Bd6 17. f4 Rf7 18. fxe5 fxe5 19. Rxf7 Kxf7 20. Kf2 Bd7 21. a4 Rf8 22. Ke2 Ke7 23. Bf3 b5 24. a5 b4 25. Ke3 Rb8 26. h4 Rb5 27. Ra1 Rc5 28. Kd2 c6 29. dxc6 Bxc6 30. Rc1 Rxc1 31. Bxc1 Bc5 32. Bb2 Kd6 33. Bg2 Bb5 34. Bf3 Bd4 35. Bxd4 exd4 36. Be2 Bxe2 37. Kxe2 Ke5 38. Kd3 a6 39. g4 h6 40. h5 g5 41. Kc4 Kxe4 42. Kxb4 d3 43. Kc3 Ke3 44. b4 d2 45. b5 axb5 46. a6 d1=Q 47. a7 Qa4 48. a8=Q Qxa8 49. Kb4 Qe4+ 50. Kxb5 Qxg4 51. Kc5 Qxh5 52. Kd6 Qf3 53. Ke7 g4 54. Ke8 g3 55. Ke7 g2 56. Kd6 g1=Q 57. Ke5 Qg5+ 0-1
2022.11.29 Titled Tue 29th Nov Late
1115700 Bortnyk, Olexandr (2604) Koellner, Ruben Gideon (2412) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O Nb6 7. Be2 exd4 8. Qxd4 O-O 9. h3 Re8 10. Bf4 Nfd7 11. Rad1 Bf6 12. Qe3 Qe7 13. Rfe1 Ne5 14. Nxe5 Bxe5 15. Bxe5 dxe5 16. a4 a5 17. Bb5 Rf8 18. Rd2 Be6 19. Red1 Rfd8 20. b3 Rxd2 21. Rxd2 Rd8 22. Ne2 g6 23. Rxd8+ Qxd8 24. Qc3 c6 25. Bd3 Nd7 26. Kf1 Qb6 27. Ng1 Qc5 28. Qxc5 Nxc5 29. Ke2 f6 30. Kd2 Kf7 31. Ne2 Ke7 32. h4 h6 33. f3 Kd6 34. Ke3 g5 35. g3 b6 36. Nc3 Bf7 37. Bf1 Be6 38. Be2 Bf7 39. Bd3 Bg8 40. Bf1 Be6 41. Nd1 Bd7 42. Nf2 Be6 43. h5 Bf7 44. Ng4 Ke7 45. Nxh6 Bxh5 46. Bc4 Bg6 47. Ng8+ Kd6 48. Nxf6 Nd7 49. Ng4 Bh5 50. Nf2 Nc5 51. Be2 Be8 52. Nh3 g4 53. fxg4 b5 54. axb5 cxb5 55. Nf2 a4 56. bxa4 bxa4 57. Bc4 Bd7 58. Kd2 Be6 59. Bxe6 Nxe6 60. Kc3 Kc5 61. Nd3+ Kd6 62. Kb4 Ng5 63. Nf2 Nf3 64. c3 Nd2 65. g5 Nb1 66. c4 a3 67. Kb3 Nd2+ 68. Kxa3 Nxc4+ 69. Kb4 Ne3 70. Kc3 Ke6 71. Kd3 Nf1 72. Nh1 Nh2 73. Nf2 Nf3 74. g6 Ng5 75. Ng4 Nf3 76. Ke3 Nd4 77. g7 Kf7 78. Nxe5+ Kxg7 79. Kxd4 Kf6 80. Nf3 Ke6 81. e5 1-0
2022.11.29 Titled Tue 29th Nov Late
1115708 Koellner, Ruben Gideon (2412) Bettalli, Francesco (2211) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 dxc4 7. Bxc4 a5 8. b5 c5 9. bxc6 Nxc6 10. O-O Bf5 11. Ba3 Re8 12. Bb5 Ne4 13. Rc1 Nxd2 14. Nxd2 e5 15. e4 Bd7 16. d5 Nd4 17. Bxd7 Qxd7 18. Nb3 b6 19. Nxd4 exd4 20. Qd3 Rac8 21. Bb2 f5 22. f3 fxe4 23. fxe4 Qg4 24. Rxc8 Rxc8 25. h3 Qg5 26. Bxd4 Bxd4+ 27. Qxd4 Rc2 28. Rf2 Rc1+ 29. Kh2 Re1 30. d6 Qc1 31. Qd5+ Kg7 32. Qf7+ Kh6 33. Qf4+ Qxf4+ 34. Rxf4 Kg5 35. d7 Rd1 36. Rf7 1-0
2022.11.29 Titled Tue 29th Nov Late
1115938 Ibarra Jerez, JC (2557) Koellner, Ruben Gideon (2412) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 c6 7. O-O h6 8. Re1 Qc7 9. b3 Nf8 10. Ba3 Ng6 11. Qd2 O-O 12. Rad1 b6 13. dxe5 dxe5 14. Bxe7 Qxe7 15. Qd6 Qxd6 16. Rxd6 Bb7 17. Red1 a6 18. b4 b5 19. Bb3 Rfe8 20. h3 Kf8 21. Nh2 h5 22. Nf1 Nf4 23. Ne3 Ne6 24. axb5 axb5 25. Bxe6 Rxe6 26. Nf5 Rxd6 27. Rxd6 Ne8 28. Rd7 Bc8 29. Rd8 Ra1+ 30. Kh2 Bxf5 31. exf5 Ke7 32. Rc8 Kd7 33. Rb8 Nd6 34. Rh8 Rc1 35. Rxh5 Rxc2 36. Nd1 Rc4 37. Rg5 Ke7 38. Rxg7 Nxf5 39. Rg4 Nd4 40. h4 Rxb4 41. h5 Ra4 42. f4 Ne6 43. h6 Ra8 44. fxe5 Rh8 45. Rh4 c5 46. Ne3 c4 47. Nf5+ Kd7 48. Re4 Kc6 49. Re1 Kc5 50. Kg3 c3 51. Nd6 b4 52. Nxf7 Rg8+ 53. Kf3 Nf8 54. e6 Nxe6 55. Rxe6 Rf8 56. Re7 c2 57. Kg3 Kb6 58. Re6+ Kb7 59. Re7+ Kb6 60. Re6+ Kc7 61. Re1 Rxf7 62. Kh4 b3 63. Rc1 Kd6 64. h7 Rxh7+ 65. Kg5 Rc7 66. Kf4 b2 67. Rh1 c1=Q+ 0-1
2022.11.29 Titled Tue 29th Nov Late
1116061 Koellner, Ruben Gideon (2412) Kowalski, Igor (2344) 0-1
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O 6. c4 a5 7. b5 c5 8. dxc5 Nbd7 9. Ba3 Ne4 10. Nxe4 dxe4 11. Nd4 a4 12. Rc1 Re8 13. Be2 e5 14. Nc2 Bf8 15. Qd5 Qa5+ 16. Bb4 Qc7 17. Qxe4 Nxc5 18. Qh4 Be7 19. Qh6 Bf8 20. Qh4 Be7 21. Qh6 Bf8 22. Qg5 Ne6 23. Qg3 Bxb4+ 24. Nxb4 Qa5 25. a3 Nc5 26. O-O Bf5 27. Nd5 Kg7 28. Qh4 Qd8 29. Qxd8 Raxd8 30. Rfd1 Rd6 31. f3 e4 32. f4 Red8 33. Rd4 Nb3 34. Rcd1 Nxd4 35. Rxd4 Be6 36. Rxe4 Bxd5 37. cxd5 Rxd5 38. Rxa4 Rd2 39. Bf3 Rb2 40. Rb4 Rxb4 41. axb4 b6 42. Kf2 Rd2+ 43. Kg3 Rb2 44. Bc6 Rxb4 45. Kf3 f5 46. g4 Kf6 47. h4 fxg4+ 48. Kxg4 h6 49. Kf3 Rb2 50. Kg3 Re2 51. Kf3 Re1 52. Kf2 Rc1 53. Kf3 Rc5 54. Kg3 Ke7 55. Kg4 Kd6 56. e4 Rc1 57. h5 Rg1+ 58. Kf3 gxh5 59. e5+ Ke6 60. Bb7 Rf1+ 61. Ke4 Re1+ 62. Kf3 Rb1 63. Bc8+ Ke7 64. Ba6 Rb3+ 65. Kg2 h4 66. f5 Re3 67. f6+ Kf7 68. Bb7 Rxe5 69. Bc6 Kxf6 70. Kh3 Kg5 71. Bd7 Re3+ 72. Kh2 Kf4 73. Bc6 Rd3 74. Bb7 Ke5 75. Bc6 Kd6 76. Be8 Kc5 0-1
2022.11.29 Titled Tue 29th Nov Late
1116174 Zozek, S (2144) Koellner, Ruben Gideon (2412) 1/2-1/2
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. Re1 Re8 10. b3 Bf8 11. Bb2 a6 12. Qd2 Qc7 13. Rad1 b5 14. cxb5 axb5 15. Rc1 Qb8 16. dxe5 dxe5 17. Ba1 Nc5 18. Qe3 Bg4 19. h3 Bxf3 20. Bxf3 Ne6 21. Ne2 Rc8 22. Qc3 Bd6 23. Qc2 c5 24. Nc3 Nd4 25. Qd1 Rd8 26. Nd5 Nxd5 27. exd5 Rxa2 28. Bxd4 exd4 29. Rc2 Rxc2 30. Qxc2 Re8 31. Rxe8+ Qxe8 32. Qe2 Qd7 33. Qd3 Qxh3 34. Qxb5 Qf5 35. Qe8+ Kg7 36. Qe4 Qg5 37. b4 Qc1+ 38. Kg2 Qc3 39. bxc5 Qxc5 40. Qd3 Qb4 41. Be4 Bc5 42. Bf3 Qb2 43. Be4 h5 44. Bf3 Qc3 45. Be4 Qxd3 46. Bxd3 Kf6 47. Kf3 Ke5 48. Bc4 Bd6 49. Ke2 g5 50. Kf3 f5 51. Ke2 Kf6 52. Bd3 h4 53. gxh4 gxh4 54. Kf3 h3 55. Bc2 h2 56. Kg2 Bf4 57. Bd3 Ke5 58. f3 Kxd5 59. Bxf5 Kc5 60. Bd3 Kb4 61. Bf5 Kc3 62. Kh1 Kd2 63. Kg2 Ke3 64. Be4 Ke2 65. Kh1 Kf2 66. Bd3 Kxf3 67. Bh7 Ke3 68. Bg6 Be5 69. Bh7 Kf2 70. Bg6 Ke1 71. Bh7 Kd2 72. Bg6 Kc3 73. Bh7 Kc4 74. Bg6 Kc5 75. Bf5 Kd5 76. Bg6 Bf4 77. Bh7 Kc4 78. Bg6 d3 79. Bxd3+ Kxd3 80. Kg2 Ke4 81. Kh1 Be5 82. Kg2 Ke3 83. Kh1 Bd6 84. Kg2 Kd4 85. Kh1 Ke4 86. Kg2 Ke3 87. Kh1 Kf3 1/2-1/2
2022.11.29 Titled Tue 29th Nov Late
1116186 Koellner, Ruben Gideon (2412) Papasimakopoulos, Alexandros (2328) 1-0
1. d4 f5 2. Bg5 c6 3. e3 Qb6 4. Nd2 d5 5. c4 e6 6. Qb3 Nd7 7. c5 Qc7 8. f4 h6 9. Bh4 Ngf6 10. Bxf6 Nxf6 11. Qc2 b6 12. b4 a5 13. cxb6 Qxb6 14. bxa5 Rxa5 15. Ngf3 c5 16. Rb1 Qa7 17. Bb5+ Bd7 18. a4 c4 19. O-O Bd6 20. Ne5 Bxe5 21. fxe5 Bxb5 22. exf6 Bxa4 23. fxg7 Rg8 24. Qb2 Bb5 25. Ra1 Rxg7 26. Rxa5 Qxa5 27. Ra1 c3 28. Rxa5 cxb2 29. Rxb5 Rc7 30. Rxb2 Rc3 31. Kf2 Kf7 32. Nf3 Rc7 33. Ne5+ Kf6 34. Kf3 Ra7 35. g3 h5 36. h4 Ra1 37. Nd3 Rd1 38. Nf4 Rf1+ 39. Rf2 Re1 40. Nxh5+ Kg6 41. Nf4+ Kf6 42. Ra2 Rf1+ 43. Kg2 Re1 44. Kf2 Ra1 45. Rxa1 1-0
2022.11.29 Titled Tue 29th Nov Late
1116310 Miller, Luke C Koellner, Ruben Gideon (2412) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. a5 Nf8 10. b4 Ng6 11. Qd3 O-O 12. b5 a6 13. bxa6 bxa6 14. Bd2 Rd8 15. Na4 d5 16. exd5 cxd5 17. Nb6 Ra7 18. dxe5 dxc4 19. Qxc4 Qxc4 20. Nxc4 Nd5 21. Nd4 Rc7 22. Nb6 Bc5 23. Nxd5 Rxd5 24. Nb3 Be6 25. c4 Rd3 26. Rab1 Bxc4 27. Nxc5 Rxc5 28. Rb8+ Kh7 29. Bb4 Rxe5 30. Rc1 Rb5 31. Rxb5 Bxb5 32. h3 Nf4 33. Be1 Ne2+ 0-1
2022.11.29 Titled Tue 29th Nov Late
1116422 Tanenbaum, Zachary (2157) Koellner, Ruben Gideon (2412) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 Qc7 8. h3 h6 9. Re1 Nf8 10. a5 g5 11. d5 Ng6 12. Bb3 a6 13. Be3 c5 14. Na4 Nxe4 15. Nb6 Rb8 16. Ba4+ Kf8 17. c4 f5 18. Bc2 Nf6 19. b4 e4 20. bxc5 exf3 21. Qxf3 Ne5 22. Qe2 dxc5 23. Nxc8 Rxc8 24. Bxf5 Re8 25. Be6 Bd6 26. f4 gxf4 27. Bxf4 Ng6 28. Qb2 Kg7 29. Bxd6 Qxd6 30. Rf1 Rhf8 31. Qxb7+ Re7 32. Qb6 Qxb6 33. axb6 Ra8 34. Ra5 Ne4 35. Rfa1 Rb7 36. Rxa6 Rxa6 37. Rxa6 Nd6 38. Ra7 Ne7 39. Rxb7 Nxb7 40. Bd7 Nd6 41. Bc6 Kf6 42. b7 Nxb7 43. Bxb7 Nf5 44. Kf2 Nd6 45. Ba6 Ke5 46. Ke3 Nf5+ 47. Kd3 Nh4 48. g3 Nf5 49. g4 1-0
2022.11.22 Titled Tue 22nd Nov Late
1120840 Floresvillar Gonzalez, L (2084) Koellner, Ruben Gideon (2412) 0-1
1. e4 d6 2. Nf3 Nf6 3. Nc3 e5 4. d4 Nbd7 5. Bg5 Be7 6. Bc4 h6 7. Be3 c6 8. Bb3 Qc7 9. dxe5 dxe5 10. O-O Nf8 11. Qe2 g5 12. h3 Ng6 13. Rfd1 g4 14. hxg4 Bxg4 15. Rd2 Rh7 16. Rad1 Nh4 17. a3 Qc8 18. Bc5 Bxc5 19. Rd8+ Qxd8 20. Rxd8+ Rxd8 21. Qc4 Nxf3+ 22. gxf3 Bxf3 23. Qxc5 Rg7+ 24. Kh2 Rg2+ 25. Kh3 Ng4 26. Bxf7+ Kxf7 27. Qc4+ Kf6 28. Nd5+ cxd5 29. exd5 Nxf2+ 30. Kh4 Rg4+ 31. Qxg4 Nxg4 0-1
2022.11.22 Titled Tue 22nd Nov Late
1120942 Koellner, Ruben Gideon (2412) Zhigalko, S (2572) 0-1
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 b6 5. c3 Bb7 6. Bd3 Bd6 7. Ne5 O-O 8. f4 Ne4 9. Qf3 f5 10. O-O Nd7 11. Qh3 Ndf6 12. Ndf3 Qe7 13. Bd2 Bxe5 14. fxe5 Ng4 15. Qh4 Qxh4 16. Nxh4 Nxd2 0-1
2022.11.22 Titled Tue 22nd Nov Late
1121203 Koellner, Ruben Gideon (2412) Ai, Evan (2055) 1-0
1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d5 4. e3 Bf5 5. Bd3 e6 6. h4 h5 7. Nf3 Bd6 8. Nbd2 f6 9. Bxd6 Qxd6 10. Bxe4 dxe4 11. Ng1 Nd7 12. c4 c5 13. Ne2 Bg4 14. Nxe4 Qc6 15. f3 Bf5 16. Nxc5 Nxc5 17. dxc5 Rd8 18. Nd4 Qxc5 19. Qa4+ Kf7 20. O-O-O a6 21. Nxf5 exf5 22. Qb3 b5 23. Qc3 bxc4 24. Rd4 Rxd4 25. Qxd4 Qxd4 26. exd4 Re8 27. Rd1 Re2 28. Rd2 Re1+ 29. Kc2 Ke6 30. d5+ Kd6 31. Kc3 Rc1+ 32. Kd4 g5 33. hxg5 fxg5 34. Re2 Rd1+ 35. Kxc4 Rxd5 36. b4 a5 37. a3 axb4 38. axb4 g4 39. f4 h4 40. Ra2 Rd1 41. Ra6+ Kc7 42. Rh6 Rc1+ 43. Kd5 Rf1 44. Ke5 h3 45. gxh3 g3 46. Rg6 Rg1 47. Kxf5 g2 48. h4 Kd7 49. h5 Ke7 50. h6 Rh1 51. Rxg2 Rxh6 52. Rb2 Rb6 53. b5 Kf7 54. Ke5 Ke7 55. Kd5 Kf7 56. Kc5 Rb8 57. b6 Kf6 58. b7 Kf5 59. Kd6 Kxf4 60. Kc7 Rxb7+ 1-0
2022.11.22 Titled Tue 22nd Nov Late
1121234 Plat, V (2546) Koellner, Ruben Gideon (2412) 0-1
1. e4 d6 2. Nf3 Nf6 3. Nc3 e5 4. d4 Nbd7 5. Bc4 Be7 6. a4 c6 7. a5 h6 8. O-O Qc7 9. h3 Nf8 10. Re1 g5 11. dxe5 dxe5 12. Nh2 Ng6 13. Be3 Kf8 14. Ng4 Bxg4 15. hxg4 Qc8 16. f3 h5 17. Bxg5 hxg4 18. Be2 Bc5+ 0-1
2022.11.22 Titled Tue 22nd Nov Late
1121396 Kilic, Eray (2437) Koellner, Ruben Gideon (2412) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. Re1 h6 8. a4 Qc7 9. Ba2 Nf8 10. h3 g5 11. dxe5 dxe5 12. Nd2 Ng6 13. Nc4 g4 14. hxg4 Bxg4 15. f3 Be6 16. Ne3 Bc5 17. Bxe6 fxe6 18. Kh1 Rd8 19. Qe2 Qf7 20. Ng4 h5 21. Nxf6+ Qxf6 22. g3 Nf4 23. Bxf4 exf4 24. e5 Qf5 25. Ne4 Be3 26. Qh2 Qxe5 27. Qh4 Rh6 28. Rad1 Rxd1 29. Rxd1 Bd4 30. gxf4 Qg7 31. c3 Bb6 32. Nd6+ Kf8 33. Nc4 Rg6 34. Nxb6 axb6 35. Qd8+ Kf7 36. Rd7# 1-0
2022.11.22 Titled Tue 22nd Nov Late
1121538 Koellner, Ruben Gideon (2412) Djordjevic, Vu (2394) 0-1
1. d4 Nf6 2. Bg5 d5 3. e3 e6 4. Nd2 Nbd7 5. f4 c5 6. c3 h6 7. Bxf6 gxf6 8. Qh5 f5 9. Ngf3 Nf6 10. Qh3 Qb6 11. Rb1 Bd7 12. Ne5 Ba4 13. b3 Bb5 14. c4 Bc6 15. Nxc6 bxc6 16. cxd5 cxd5 17. Nf3 Qa5+ 18. b4 cxb4 19. Nd2 b3 20. Rxb3 Bb4 21. Rxb4 Qxb4 22. Bd3 Ke7 23. Ke2 Rab8 24. Rc1 Qd6 25. Rc2 h5 26. Qh4 Rhc8 27. Rxc8 Rxc8 28. Nf3 Qa3 29. Ne5 Qxa2+ 30. Kf3 Qa4 0-1
2022.11.13 25th OIBM 2022
1131289 Kristoferitsch, Daniel (2303) Koellner, Ruben Gideon (2412) 1/2-1/2
1. d4 d6 2. Nf3 Nf6 3. c4 Nbd7 4. Nc3 e5 5. e4 Be7 6. Be2 O-O 7. O-O c6 8. Be3 Re8 9. d5 a6 10. Ne1 cxd5 11. cxd5 b5 12. Nd3 Nb6 13. f3 Bd7 14. b3 Qb8 15. Qd2 Rc8 16. Rfc1 Ne8 17. Nb2 f5 18. a4 b4 19. Nb1 Rxc1+ 20. Qxc1 a5 21. Nd2 Nf6 22. Kh1 Bd8 23. Qg1 Qb7 24. Rc1 Rc8 25. Nbc4 Qb8 26. Re1 Nxc4 27. Bxc4 fxe4 28. fxe4 Be8 29. Bg5 h6 30. Bxf6 Bxf6 31. Qf2 Bd7 32. Rf1 Kh7 33. h3 Be8 34. h4 Bg6 35. g3 Bd8 36. Qf3 Bf6 37. Qe3 Bh5 38. Qf2 Bg4 39. Qg2 Qa7 40. Qf2 Qb8 41. Kh2 Rc5 42. Nf3 Qc8 43. Rc1 Qd8 44. Qe3 g5 45. hxg5 Bxg5 46. Nxg5+ Qxg5 47. Qxg5 hxg5 48. Kg2 Rc8 49. Rc2 Bd1 50. Rd2 Bh5 51. Rf2 Kg7 52. Rf1 Bg4 53. Rf2 Bd1 54. Rd2 Bh5 55. Rf2 Bg6 56. Re2 Kf6 57. Rf2+ Ke7 58. Re2 Kd8 59. Re1 Ke7 60. Re2 Rc5 61. Re1 Be8 62. Ra1 Bd7 63. Ra2 Kd8 64. Kf2 Ke7 65. Kg2 Rc8 66. Ra1 Rh8 67. Rh1 Rxh1 68. Kxh1 Kd8 69. Kg1 Kc7 70. Kf2 Kb6 71. Ke3 Kc5 72. Be2 Bc8 73. Bd1 Bh3 74. Be2 Bd7 75. Bd1 Be8 76. Kd3 Bf7 77. Bf3 Be8 78. Bd1 Bd7 79. Ke3 Kb6 80. Be2 Bc8 81. Bd1 Kc5 1/2-1/2
2022.11.12 25th OIBM 2022
1131249 Koellner, Ruben Gideon (2412) Bashirov, Kemal (2178) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. b3 Nc6 6. Bb2 Bd6 7. Bd3 O-O 8. dxc5 Bxc5 9. a3 Qe7 10. b4 Bd6 11. O-O e5 12. c4 Bc7 13. cxd5 Nxd5 14. b5 Nb8 15. Rc1 Bg4 16. Qc2 Bd6 17. Bxh7+ Kh8 18. Bf5 Bxf5 19. Qxf5 Nd7 20. Ne4 f6 21. Nh4 1-0
2022.11.11 25th OIBM 2022
1131203 Goldbeck, Lars (2262) Koellner, Ruben Gideon (2412) 1/2-1/2
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Nbd7 8. Nge2 h6 9. Bh4 Nh5 10. Bxe7 Qxe7 11. O-O O-O 12. Qc2 Nb6 13. Rae1 a5 14. a4 Be6 15. Nc1 Nc4 16. Qe2 Nf6 17. e4 Qb4 18. N1a2 Qb3 19. e5 Ne8 20. Bc2 Qb6 21. Rd1 Nc7 22. Bd3 Na6 23. b3 Qxb3 24. f4 f5 25. Rb1 Qa3 26. Rxb7 Rab8 27. Rfb1 Rxb7 28. Rxb7 Nb4 29. h3 Nb2 30. Bb1 Nxa4 31. Nxa4 Qxa4 32. Nxb4 axb4 33. Qc2 b3 34. Qc3 Rc8 35. Rb4 Qa7 36. Qxb3 c5 37. dxc5 Rxc5 38. Kh2 Rc1 39. Rb8+ Kh7 40. Rb6 Qe7 41. Qe3 Rc4 42. Rd6 Rb4 43. Bc2 Kh8 44. Qg3 Qf7 45. Bb3 Kh7 46. Bd1 Rb7 47. Qd3 Rd7 48. Rb6 d4 49. Rb4 Qe7 50. Rxd4 Rxd4 51. Qxd4 Qd7 52. Qxd7 Bxd7 53. Bb3 g5 54. g3 gxf4 55. gxf4 Kg7 56. Kg3 Kf8 57. Kf3 Ke7 58. Ke3 Bc6 59. Kd4 Bg2 60. h4 Bf3 61. Bd5 Bd1 62. Bc4 Bf3 63. Kc5 Bd1 64. Kd5 Bf3+ 65. Kd4 Bd1 66. e6 Kd6 67. e7 Ba4 68. Be2 Be8 69. Ba6 Kxe7 70. Ke5 Kf7 71. Kxf5 Bd7+ 72. Ke5 Kg6 73. Be2 Bh3 74. Bf3 Bc8 75. h5+ Kg7 76. Be4 Bg4 77. Bg6 Bd1 78. Ke6 Kf8 79. Kf6 Bg4 80. Bf7 Bf3 81. Kg6 Bxh5+ 82. Kxh5 Kxf7 83. Kxh6 Kf6 84. f5 Kxf5 1/2-1/2
2022.11.10 25th OIBM 2022
1131163 Koellner, Ruben Gideon (2412) Seisenberger, Georg (2062) 1-0
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Qc2 c6 8. Bd3 Nbd7 9. Nf3 Re8 10. h3 a5 11. Bf4 Nf8 12. g4 Bd6 13. Bxd6 Qxd6 14. g5 Nh5 15. O-O-O g6 16. Ne2 b6 17. Nc3 Ne6 18. Kb1 Neg7 19. Rc1 Bf5 20. Bxf5 Nxf5 21. Na4 b5 22. Nc5 Qe7 23. Nd3 Rec8 24. Nde5 Ra6 25. Qc5 Qe6 26. Rc2 Nd6 27. Rhc1 Ne4 28. Qa3 Ng7 29. Ng4 Nf5 30. h4 Nfd6 31. Nfe5 Nc4 32. Qd3 f6 33. gxf6 Nxf6 34. Nxf6+ Qxf6 35. h5 Nxe5 36. dxe5 Qxe5 37. hxg6 hxg6 38. Qxg6+ Qg7 39. Qe6+ 1-0
2022.11.09 25th OIBM 2022
1131119 Nagel, B (2199) Koellner, Ruben Gideon (2412) 1/2-1/2
1. Nf3 d5 2. e3 Nd7 3. d4 Ngf6 4. b3 g6 5. c4 c6 6. Nc3 Bg7 7. cxd5 Nxd5 8. Nxd5 cxd5 9. Bb2 O-O 10. Bd3 b6 11. Qe2 Bb7 12. O-O Rc8 13. Rfc1 Rxc1+ 14. Rxc1 Qb8 15. Ba3 Bf6 16. g4 h6 17. h4 Re8 18. Bb5 Qd8 19. g5 hxg5 20. hxg5 Bg7 21. Qc2 a6 22. Bc6 Bxc6 23. Qxc6 e5 24. Qxd5 exd4 25. exd4 Ne5 26. Qxd8 Nxf3+ 27. Kg2 Nh4+ 28. Kh3 Rxd8 29. Kxh4 Rxd4+ 30. Kg3 Be5+ 31. Kf3 Rd2 32. Re1 Rxa2 33. Bc5 bxc5 34. Rxe5 Rc2 35. Re8+ Kg7 36. Ra8 Rc3+ 37. Kg4 Rxb3 38. Rxa6 Rb4+ 39. Kf3 Kf8 40. Rc6 Rc4 41. Rc7 Ke8 42. Ke3 Rc2 43. f3 Rc4 44. Ra7 Rd4 45. Rc7 Rd5 46. f4 Rf5 47. Ke4 Kd8 48. Ra7 Kc8 49. Re7 c4 50. Ra7 c3 51. Ra2 Rb5 52. Kd3 Rb4 53. Rf2 Kd7 54. Kxc3 Ra4 55. f5 Rg4 56. fxg6 fxg6 57. Kd3 Rxg5 58. Ke4 Ke6 59. Rf8 Rg1 60. Ke3 Ke5 61. Kf2 Ra1 62. Rf3 Ra4 63. Kg2 Rg4+ 64. Kh3 Rf4 65. Ra3 Kf6 66. Kg2 Kg5 67. Rb3 Rg4+ 68. Kh3 Ra4 69. Kg2 Ra2+ 70. Kg1 Kh4 71. Rb4+ Kh5 72. Rb3 g5 73. Rc3 Kh4 74. Rb3 g4 75. Rc3 Ra4 76. Rb3 g3 77. Rb8 Kh3 78. Rh8+ Rh4 79. Rxh4+ Kxh4 80. Kg2 Kg4 81. Kg1 Kh3 82. Kh1 g2+ 83. Kg1 Kg3 1/2-1/2
2022.11.08 25th OIBM 2022
1131069 Koellner, Ruben Gideon (2412) Lederle, V (2222) 1/2-1/2
1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e3 d5 5. c3 Nbd7 6. Nbd2 cxd4 7. exd4 Bd6 8. Bd3 O-O 9. O-O Qc7 10. Re1 b6 11. Qe2 Bf4 12. h4 h6 13. Bxf4 Qxf4 14. g3 Qc7 15. Nh2 Bb7 16. f4 Rfe8 17. Rf1 Nh7 18. Rae1 f5 19. Ndf3 Nhf6 20. Ne5 Ne4 21. Kg2 Nxe5 22. fxe5 Qe7 23. Qh5 Rf8 24. Qe2 Rf7 25. h5 Qg5 26. Bxe4 dxe4 27. Rf4 Rc8 28. Nf1 Bd5 29. Ne3 Bc6 30. Ref1 b5 31. Qd1 Rcf8 32. R1f2 a6 33. Qb3 Qe7 34. Qd1 Qb7 35. Qf1 Qe7 36. Kh2 Qg5 37. Qd1 Qd8 38. Qb3 Qe7 39. Rd2 Rd8 40. Rdf2 Rdf8 41. Qd1 Qg5 42. Rd2 Rd8 43. b3 Be8 44. d5 Rfd7 45. c4 Bxh5 46. Qf1 Bf3 47. d6 Qh5+ 48. Rh4 Qe8 49. cxb5 axb5 50. Qxb5 Kh7 51. Rf2 g5 52. Rh3 Bg4 53. Qf1 Bxh3 54. Qxh3 Qg6 55. Rc2 Rf7 56. b4 h5 57. b5 Kg7 58. Rc7 f4 59. gxf4 gxf4 60. Ng2 Qg5 61. Qxe6 Rf8 62. Qf6+ Qxf6 63. exf6+ Kxf6 64. Nxf4 Kf5 65. Nxh5 Ke6 66. Ng3 Rf2+ 67. Kg1 e3 68. Re7+ Kxd6 69. Rxe3 Rxa2 70. Re2 1/2-1/2
2022.11.07 25th OIBM 2022
1131013 Demchenko, A (2643) Koellner, Ruben Gideon (2412) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O Nb6 7. Bd3 exd4 8. Nxd4 O-O 9. Qf3 Nfd7 10. Bf4 Ne5 11. Bxe5 dxe5 12. Nf5 Bb4 13. Ne2 g6 14. a3 Bd6 15. Nxd6 Qxd6 16. Rfd1 Qe7 17. Qg3 Bd7 18. Nc3 Rad8 19. Rd2 Bc6 20. Qe3 Rd4 21. Ne2 Rd6 22. b3 f5 23. f3 fxe4 24. fxe4 Rdf6 25. h3 Kg7 26. Kh2 Rf2 27. Ng1 R2f4 28. Ne2 Rf2 29. Ng1 R2f4 30. b4 Nc8 31. Ne2 Rf2 32. Nc3 Rxd2 33. Qxd2 a6 34. Qe3 Nb6 35. Re1 Qh4 36. Nd5 Nxd5 37. exd5 Bxd5 38. Qxe5+ Kh6 39. c4 Bc6 40. Qe3+ Qf4+ 41. Qxf4+ Rxf4 42. Kg3 Rd4 43. Bf1 Kg5 44. Re7 Rd7 45. Re3 Kf6 46. b5 axb5 47. cxb5 Bd5 48. h4 c5 49. bxc6 Bxc6 50. Be2 Re7 51. Rxe7 Kxe7 52. Kf2 Kd6 53. g3 Ke5 54. Ke3 h6 55. Bd3 g5 56. hxg5 Be4 1/2-1/2
2022.11.06 25th OIBM 2022
1137068 Koellner, Ruben Gideon (2412) Duerr, Florian (2135) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bc4 O-O 6. Qe2 Nfd7 7. O-O Nc6 8. c3 e5 9. Nb3 a5 10. a4 exd4 11. cxd4 Nb6 12. Bb5 Bg4 13. Rd1 Nb4 14. Qd2 Bxf3 15. gxf3 c6 16. Bf1 Nd7 17. Qe2 Nf6 18. Bd2 Qb6 19. Rdc1 Nh5 20. Qc4 d5 21. Qc3 dxe4 22. fxe4 Qd8 23. f3 Qf6 24. Qe3 Rfd8 25. Rc4 Qe7 26. Kh1 Re8 27. Qg5 Qc7 28. Rc5 b6 29. Rc4 Qd6 30. Rac1 Rac8 31. Qg1 Rf8 32. Qf2 Kh8 33. Kg1 h6 34. f4 Qe7 35. Qf3 Nf6 36. Bg2 Rfe8 37. Re1 Qe6 38. Rc3 Rcd8 39. Kh1 Qd7 40. Rc4 c5 41. e5 Nfd5 42. dxc5 Qxa4 43. c6 Nc7 44. Bxb4 axb4 45. Ra1 Qb5 46. Bf1 Qd5 47. Qxd5 Nxd5 48. Bh3 g5 49. c7 Nxc7 50. Rxc7 Rd3 51. Bd7 Rd8 52. e6 fxe6 53. Bxe6 gxf4 54. Raa7 Re3 55. Nd4 f3 56. Kg1 Rg8 57. Rxg7 Rxg7+ 58. Rxg7 1-0
2022.11.05 25th OIBM 2022
1137028 Staeblein, C (2089) Koellner, Ruben Gideon (2412) 0-1
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Nfd2 f5 5. e3 Nf6 6. Nc3 c5 7. Nb3 Nc6 8. Be2 Be7 9. O-O O-O 10. f3 b6 11. Bd2 Ba6 12. fxe4 fxe4 13. Qb1 cxd4 14. Nxd4 Nxd4 15. exd4 d5 16. cxd5 Bxe2 17. Nxe2 Qxd5 18. h3 Rae8 19. Be3 Bd6 20. Qd1 Bb8 21. Qd2 Nh5 22. Rxf8+ Rxf8 23. Qb4 Qf5 24. Qb3+ Kh8 25. Rc1 h6 26. Qc3 Nf6 27. Qe1 Nd5 28. Bf2 e3 29. Bg3 Bxg3 30. Nxg3 Qf2+ 31. Qxf2 Rxf2 32. Re1 Rxb2 33. Nf5 e2 34. Kf2 Rxa2 35. Rxe2 Rxe2+ 36. Kxe2 b5 37. Kd3 a5 38. Nd6 Nc7 39. Kc3 Kg8 40. Nb7 Nd5+ 41. Kd3 a4 42. Ke4 Nb4 43. d5 Kf8 44. d6 Ke8 45. Nc5 a3 46. Nb3 a2 47. Na1 Kd7 48. Ke5 Nd3+ 49. Ke4 Ne1 50. g3 b4 51. Kd5 Nc2 0-1
2022.10.25 Titled Tue 25th Oct Early
1144926 Roque Sola, Gisela (2061) Koellner, Ruben Gideon (2403) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Be3 Ng4 5. Be2 Nxe3 6. fxe3 Qg5 7. Nf3 Qxg2 8. Rg1 Qh3 9. dxe5 Be6 10. Nd5 Kd8 11. exd6 cxd6 12. e5 Nd7 13. Nf4 Qh6 14. exd6 Rc8 15. c3 Rc6 16. Qa4 Bxd6 17. O-O-O Kc7 18. Bb5 Nc5 19. Qa5+ Rb6 20. Kb1 Bf5+ 21. Ka1 Rd8 22. Nd5+ Kb8 23. Nxb6 axb6 24. Qxb6 Qf6 25. Nd4 Be4 26. Rgf1 Qe7 27. Rxf7 1-0
2022.10.25 Titled Tue 25th Oct Early
1145079 Koellner, Ruben Gideon (2403) Saucey, M (2249) 0-1
1. d4 d5 2. Nf3 e6 3. Nbd2 Nf6 4. e3 b6 5. Ne5 Bb7 6. f4 Be7 7. Bd3 O-O 8. Qf3 Nbd7 9. c3 c5 10. O-O Qc7 11. g4 Rad8 12. g5 Ne4 13. Nxe4 dxe4 14. Bxe4 Nxe5 15. fxe5 Bxe4 16. Qxe4 Bxg5 17. Kh1 Qd7 18. Rg1 Bh6 19. Rg2 f5 20. exf6 Rxf6 21. Bd2 Rdf8 22. Rag1 Qd5 23. Qxd5 exd5 24. dxc5 bxc5 25. b4 c4 26. e4 Bxd2 27. Rxd2 dxe4 28. Rd4 Re6 29. Rxc4 e3 30. Rc7 g6 31. Re1 Rf2 32. Rxa7 e2 33. Kg1 Ref6 34. Rxe2 Rxe2 35. c4 Rd6 36. Kf1 Rxh2 37. Kg1 Rc2 0-1
2022.10.25 Titled Tue 25th Oct Late
1146538 Koellner, Ruben Gideon (2403) Harish, Neeraj (1915) 1-0
1. d4 d5 2. Nf3 Nf6 3. Nbd2 Bf5 4. e3 e6 5. Ne5 Bd6 6. g4 Bg6 7. h4 h6 8. Nxg6 fxg6 9. Bd3 O-O 10. Bxg6 c5 11. c3 Nc6 12. g5 Nd7 13. Qh5 cxd4 14. exd4 e5 15. gxh6 Qf6 16. hxg7 Qxg7 17. Rg1 exd4 18. Bh7+ 1-0
2022.10.25 Titled Tue 25th Oct Late
1146750 Koellner, Ruben Gideon (2403) Belous, V (2525) 0-1
1. d4 c5 2. d5 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 e6 6. Nf3 exd5 7. exd5 Ne7 8. O-O Bg4 9. Nd2 Bxe2 10. Qxe2 O-O 11. Qf3 Nd7 12. Nc4 Ne5 13. Nxe5 Bxe5 14. Bh6 Re8 15. Rfe1 Nf5 16. Bd2 b5 17. Nxb5 Qb6 18. c4 a6 19. Nc3 Qxb2 20. Qd3 Nd4 21. Rab1 Qc2 22. Qxc2 Nxc2 23. Rec1 Na3 24. Rb7 Nxc4 25. Be1 Rab8 26. Rcb1 Rxb7 27. Rxb7 Bf6 28. Rb1 Na3 29. Rc1 Nc2 30. Bd2 Nb4 31. Kf1 h5 32. h3 c4 33. Ne2 Nxa2 34. Rxc4 Rb8 35. Ra4 Rb1+ 36. Be1 Nc3 37. Rxa6 Ne4 38. Ra8+ Kg7 39. Ra3 Nd2+ 40. Kg1 Rxe1+ 0-1
2022.10.25 Titled Tue 25th Oct Late
1146916 Coelho, Ramyres Santana (1981) Koellner, Ruben Gideon (2403) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. f3 exd4 5. Qxd4 Nc6 6. Qd1 Be6 7. Be3 d5 8. exd5 Nxd5 9. Nxd5 Qxd5 10. Qxd5 Bxd5 11. a3 O-O-O 12. O-O-O Be7 13. Nh3 Rhe8 14. Nf4 Bg5 15. Nxd5 Rxe3 16. f4 Rxd5 17. Rxd5 Bxf4 18. Kd1 Be5 19. c3 Ne7 20. Rd3 Re4 21. Be2 c6 22. Bf3 Rc4 23. Re1 f6 24. h3 Ng6 25. Bg4+ Kc7 26. Rd7+ Kb6 27. Kc2 Rf4 28. Bf3 Nh4 29. Rxg7 h5 30. Bxh5 Nf5 31. Rg4 Rf2+ 32. Kb3 a5 33. a4 Ne7 34. Rge4 Nd5 35. Bf3 Nf4 36. h4 Nxg2 37. Bxg2 Rxg2 38. R1e2 Rg1 39. Ka2 Rh1 40. Rg2 Rh3 41. Rg8 Rh2 42. Kb3 Ka6 43. Rg6 b5 44. axb5+ Kxb5 45. Rh6 a4+ 46. Ka3 Bd6+ 47. Ka2 Be5 48. Kb1 Rh1+ 49. Kc2 Rh2+ 50. Kb1 Rh1+ 51. Ka2 Rh2 52. Ka3 Rh1 53. Ka2 Rh2 1/2-1/2
2022.10.25 Titled Tue 25th Oct Late
1147051 Koellner, Ruben Gideon (2403) Ansh, M Shah (2184) 1-0
1. d4 Nf6 2. Bg5 e6 3. Nd2 d5 4. e3 h6 5. Bh4 g5 6. Bg3 Bg7 7. h4 g4 8. h5 c5 9. c3 Nc6 10. Bd3 Bd7 11. Ne2 b6 12. Bh4 Qc7 13. Ng3 e5 14. Bf5 exd4 15. cxd4 cxd4 16. O-O dxe3 17. fxe3 Qe5 18. Bxd7+ Kxd7 19. Nc4 Qe6 20. Nf5 Bf8 21. Nd4 Nxd4 22. Qxd4 Be7 23. Bxf6 Bxf6 24. Rxf6 Qe4 25. Rxf7+ Ke6 26. Qxe4+ dxe4 27. Raf1 Rac8 28. Nd2 Rc2 29. Nxe4 Rxb2 30. Nc3 Rc8 31. Ne4 Rxa2 32. R7f6+ Ke5 33. R6f4 Ke6 34. Rxg4 Rcc2 35. Rf6+ Ke5 36. Rxh6 Kf5 37. Rf4+ Ke5 38. Rg6 Kd5 39. Kh2 b5 40. Nf6+ Kc5 41. h6 Kb6 42. h7 Ka5 43. h8=Q a6 44. Qd8+ Rc7 45. Qxc7# 1-0
2022.10.25 Titled Tue 25th Oct Late
1147152 Szpar, Milosz (2428) Koellner, Ruben Gideon (2403) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nge2 Nc6 5. d5 Ne7 6. g3 g6 7. Bg2 Bg7 8. O-O O-O 9. f4 exf4 10. gxf4 c6 11. dxc6 bxc6 12. h3 d5 13. e5 Qb6+ 14. Kh2 Nh5 15. Bf3 f6 16. Bxh5 gxh5 17. Ng3 fxe5 18. Nxh5 Bh8 19. Rg1+ Ng6 20. Nxd5 cxd5 21. Qxd5+ Be6 22. Qe4 Bf5 23. Qc4+ Qe6 24. Qf1 e4 25. Be3 Bxb2 26. Rb1 Bh8 27. Rb5 Rac8 28. Rg5 Rxc2+ 29. Kg3 h6 30. Qd1 Qxa2 31. Rbxf5 Rg2# 0-1
2022.10.25 Titled Tue 25th Oct Late
1147321 Arabidze, M (2422) Koellner, Ruben Gideon (2403) 0-1
1. Nf3 d6 2. d4 Nf6 3. g3 Nbd7 4. Bg2 e5 5. O-O Be7 6. c4 O-O 7. Nc3 c6 8. b3 Qc7 9. Bb2 Re8 10. e4 Nf8 11. h3 Ng6 12. Re1 Bf8 13. Qc2 h6 14. Rad1 a5 15. Na4 Nd7 16. c5 dxc5 17. dxc5 Rb8 18. Rc1 Nf6 19. Bc3 Be6 20. Qd2 Red8 21. Bxa5 Qe7 22. Bxd8 Rxd8 23. Qc2 Ra8 24. Qb2 Nd7 25. Nd2 h5 26. h4 Qf6 27. Nc4 Nxc5 28. Nab6 Rd8 29. Bf1 Nd3 30. Bxd3 Rxd3 31. Qe2 Bc5 32. Kh2 Bg4 33. f3 Rxf3 34. Rf1 Nxh4 35. Nd7 Bxd7 0-1
2022.10.25 Titled Tue 25th Oct Late
1147423 Koellner, Ruben Gideon (2403) Bordi, K (2288) 0-1
1. d4 d5 2. Nf3 Nf6 3. Nbd2 Bf5 4. e3 e6 5. Ne5 Nbd7 6. g4 Nxe5 7. gxf5 Neg4 8. fxe6 fxe6 9. Bh3 h5 10. Nf3 Ne4 11. Bxg4 hxg4 12. Ne5 Qh4 13. Rf1 Bd6 14. Ng6 Qxh2 15. Nxh8 Nxf2 16. Rxf2 Bg3 17. Qe2 O-O-O 18. Ng6 Bxf2+ 19. Kd2 g3 20. Kc3 g2 21. Bd2 g1=Q 22. Rxg1 Qxg1 23. Nf4 Rd6 24. Qh5 b6 25. Qe8+ Kb7 26. Nxe6 Bxe3 27. Nd8+ Rxd8 28. Qxd8 Bxd2+ 29. Kxd2 Qxd4+ 30. Kc1 Qe3+ 31. Kd1 Qf3+ 32. Kd2 g6 33. Qg5 Qf5 34. Qg3 g5 35. Qg2 g4 36. c3 Qe4 37. Qg3 a5 38. b3 a4 39. bxa4 Qxa4 40. Ke3 Qe4+ 41. Kd2 Kc6 42. Qh4 Qf4+ 43. Kd3 Qc4+ 44. Kd2 Qxa2+ 45. Kd3 Qc4+ 46. Kd2 Qf4+ 47. Kd3 Kb7 0-1
2022.10.25 Titled Tue 25th Oct Late
1147579 Makarian, Rudik (2505) Koellner, Ruben Gideon (2403) 1-0
1. Nf3 Nf6 2. g3 d5 3. c4 e6 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 c5 7. O-O Bc6 8. Nc3 Nbd7 9. e4 Rc8 10. Qe2 c4 11. b3 cxb3 12. axb3 Bb4 13. Rxa7 Qb6 14. Ra1 O-O 15. e5 Nd5 16. Ba3 Nxc3 17. dxc3 Bxc3 18. Bxf8 Nxf8 19. Rac1 Bb5 20. Qc2 Bxf1 21. Bxf1 Rc5 22. Bc4 Bxe5 23. Nxe5 Rxe5 24. Rd1 Qc7 25. Qd3 g6 26. Qd6 Qxd6 27. Rxd6 b5 28. Bf1 b4 29. Rd4 Rd5 30. Rxb4 Nd7 31. Re4 Rd1 32. Re3 Rb1 33. Kg2 Nc5 34. Bc4 Kg7 35. h4 h5 36. Kf3 Rb2 37. Re2 Rb1 38. Re3 Rb2 39. Kg2 Kf6 40. Rf3+ Ke7 41. Re3 Kf6 42. Rc3 Ne4 43. Rf3+ Ke7 44. Kg1 Nd2 45. Rc3 Ne4 46. Re3 Nxf2 47. Re2 Rxe2 48. Bxe2 Ne4 49. Kg2 Nd6 50. Kf3 Nc8 51. b4 Nb6 52. Ke3 e5 53. Kd3 Kd6 54. Kc3 Kd5 55. Bf3+ e4 56. Be2 f5 57. Bb5 Ke5 58. Be8 Kf6 59. Kd4 Nc8 60. b5 Nb6 61. Kc5 Na4+ 62. Kb4 Nb6 63. Kc5 Na4+ 64. Kd4 Nb6 65. Bc6 Na4 66. Bd5 Nb6 67. Bb3 Nd7 68. Bc2 g5 69. hxg5+ Kxg5 70. Kd5 Nb6+ 71. Kc6 Nc4 72. Kc5 Ne5 73. Bb3 Kg4 74. Kd6 Nd3 75. b6 Nb4 76. b7 Na6 77. Bc4 Nb8 78. Kc7 f4 79. gxf4 Kxf4 80. Kxb8 h4 81. Kc7 h3 82. b8=Q h2 83. Kd7+ Kf3 84. Qxh2 e3 85. Qe2+ 1-0
2022.10.25 Titled Tue 25th Oct Late
1147604 Boskovic, D (2415) Koellner, Ruben Gideon (2403) 1-0
1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. Ba2 Nf8 10. h3 g5 11. Nh2 Ng6 12. Be3 Kf8 13. Kh1 Bd7 14. d5 Qc8 15. dxc6 bxc6 16. f3 Nf4 17. Ne2 h5 18. Qd2 h4 19. Nxf4 gxf4 20. Bf2 Nh5 21. Ng4 Ng3+ 22. Bxg3 hxg3 23. Kg1 Rb8 24. c3 Bxg4 25. fxg4 f3 26. Red1 d5 27. b4 dxe4 28. Qe3 a5 29. Qxe4 f2+ 30. Kf1 Rh6 31. Qxe5 Qa6+ 32. b5 1-0
2022.10.23 Bundesliga 2022-23
1154496 Morgunov, Marc (2417) Koellner, Ruben Gideon (2403) 1/2-1/2
1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O Nd4 5. Nxd4 Bxd4 6. c3 Bb6 7. d4 c6 8. Ba4 d6 9. Na3 Nf6 10. Nc4 Bc7 11. dxe5 dxe5 12. Qxd8+ Kxd8 13. Bc2 Be6 14. Ne3 g6 15. b3 Ke7 16. Ba3+ Bd6 17. Bxd6+ Kxd6 18. f3 Rhd8 19. Rfd1+ Ke7 20. Kf2 Rxd1 21. Rxd1 Rd8 22. Rxd8 1/2-1/2
2022.10.22 Bundesliga 2022-23
1154432 Koellner, Ruben Gideon (2403) Lutz, Ruben (2098) 1-0
1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 cxd4 6. exd4 Qb6 7. Nb3 Bg4 8. Be2 e6 9. O-O Be7 10. a4 O-O 11. a5 Qd8 12. a6 b6 13. c3 Ne4 14. Ne5 Bxe2 15. Qxe2 Qc8 16. Qb5 Nxe5 17. dxe5 f6 18. Nd4 g5 19. exf6 Bxf6 20. Be3 Nd6 21. Qe2 e5 22. Nf3 g4 23. Nd2 Kh8 24. Rfd1 Qe6 25. Nf1 Rad8 26. Ra4 Rg8 27. Bc1 Ne4 28. Ng3 Nxg3 29. hxg3 h5 30. Be3 Rge8 31. Qb5 Qd7 32. Qb3 Kg7 33. Rb4 Qf7 34. Qa4 Qd7 35. Rb5 d4 36. cxd4 exd4 37. Bf4 d3 38. Qc4 Re2 39. Rb3 Qd4 40. Qxd4 Bxd4 41. Rbxd3 Bxf2+ 42. Kf1 Rde8 43. R3d2 Rxd2 44. Rxd2 Bc5 45. Rd7+ Kg6 46. Rxa7 h4 47. gxh4 Rf8 48. g3 Bd6 49. h5+ 1-0
2022.10.18 Titled Tue 18th Oct Early
1151481 Koellner, Ruben Gideon (2403) Osmonbekov, T (2137) 0-1
1. d4 e6 2. Nf3 f5 3. Bg5 Nf6 4. Nc3 d5 5. e3 c6 6. Ne5 Nbd7 7. f4 Be7 8. Be2 O-O 9. O-O h6 10. Bh4 Nxe5 11. fxe5 Ne4 12. Bxe7 Qxe7 13. Nxe4 dxe4 14. c4 b6 15. a4 Bb7 16. Qb3 c5 17. a5 cxd4 18. exd4 f4 19. a6 Bc8 20. Qc2 f3 21. Qxe4 Bd7 22. Rxf3 Rac8 23. Rxf8+ Qxf8 24. h3 Bc6 25. Qe3 Qb4 26. Qc3 Qe7 27. b3 Qg5 28. Bf3 b5 29. Bxc6 Rxc6 30. c5 Qf4 31. Rf1 Qe4 32. Re1 Qd5 33. Ra1 Rc8 34. Rf1 Rc6 35. Rf4 Rxa6 36. Qf3 Ra1+ 37. Kh2 Qxf3 38. Rxf3 Rd1 0-1
2022.10.18 Titled Tue 18th Oct Early
1151595 Jones, Daniel (1924) Koellner, Ruben Gideon (2403) 0-1
1. f4 d6 2. Nf3 Nf6 3. g3 Nc6 4. Bg2 e5 5. d3 Be7 6. c3 O-O 7. e4 Re8 8. O-O h6 9. Qc2 Be6 10. f5 Bd7 11. h3 Nh7 12. g4 b5 13. Be3 a5 14. Nbd2 a4 15. a3 Na5 16. Kh2 c5 17. Kg3 Rc8 18. h4 b4 19. c4 Rb8 20. Bh3 f6 21. Rg1 Kf7 22. Kf2 Rh8 23. Rg2 bxa3 24. bxa3 Nb3 25. Rag1 Nxd2 26. Qxd2 Rb3 27. g5 hxg5 28. hxg5 Nxg5 29. Nxg5+ fxg5 30. Bxg5 Bxg5 31. Rxg5 Rh7 32. Bg4 Rh2+ 33. Rg2 Rxg2+ 34. Kxg2 Rxd3 35. Rxg7+ Kxg7 36. Qxd3 Qg5 37. Qg3 Bc6 38. Kf3 Kf6 39. Qh2 Bxe4+ 40. Kxe4 Qxg4+ 41. Kd5 Qd4+ 42. Kc6 Kxf5 43. Qh7+ Kf4 44. Qh4+ Ke3 45. Qg3+ Kd2 46. Qg2+ Kc3 47. Qf3+ Kxc4 48. Qe2+ Kb3 49. Qf3+ Kb2 50. Kb5 e4 51. Qe2+ Kxa3 0-1
2022.10.18 Titled Tue 18th Oct Early
1151716 Koellner, Ruben Gideon (2403) Vasques, A (2213) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. c3 O-O 6. Bc4 e5 7. dxe5 dxe5 8. O-O Nbd7 9. a4 c6 10. b3 Re8 11. Ba3 a5 12. Ng5 Nd5 13. exd5 Qxg5 14. dxc6 bxc6 15. Ne4 Qh4 16. Nd6 Rf8 17. Nxc8 Rfxc8 18. Qxd7 e4 1-0
2022.10.18 Titled Tue 18th Oct Early
1151986 Koellner, Ruben Gideon (2403) Oparin, G (2683) 0-1
1. d4 Nf6 2. Bg5 d5 3. e3 c5 4. Bxf6 gxf6 5. dxc5 e6 6. c4 dxc4 7. Nd2 c3 8. bxc3 Bxc5 9. Qh5 Be7 10. Ngf3 Nc6 11. Bb5 Bd7 12. Rb1 Qc7 13. O-O a6 14. Be2 b5 15. c4 b4 16. c5 f5 17. Rfc1 a5 18. Nc4 Bxc5 19. Ng5 Nd8 20. Nxh7 Be7 21. Qh6 Rc8 22. Qg7 Rxh7 23. Qxh7 Bf6 24. Rd1 Ke7 25. Nd6 Qxd6 26. Rxd6 Kxd6 27. Rd1+ Ke7 28. Bd3 a4 29. h4 b3 30. axb3 axb3 31. Rb1 b2 32. Qh5 Rc1+ 33. Kh2 Bb5 34. Rxb2 Bxb2 35. Bxb5 Bf6 36. g3 Nb7 37. Qf3 Nd6 38. Be2 Rc3 39. Kg2 Ne4 40. Bd1 Rc1 41. Qe2 Nc3 42. Qa6 Rxd1 43. Qb7+ Kf8 44. Qc8+ Kg7 45. Qc4 Ne4 46. f3 Rd2+ 47. Kh3 Nf2+ 48. Kg2 Ng4+ 49. Kh3 Rh2# 0-1
2022.10.18 Titled Tue 18th Oct Early
1152188 Kuznetsov, Mi1 (2246) Koellner, Ruben Gideon (2403) 1-0
1. Nf3 d6 2. d4 Nf6 3. g3 Nbd7 4. Bg2 e5 5. O-O Be7 6. c4 O-O 7. Nc3 Re8 8. b3 Bf8 9. e3 exd4 10. exd4 g6 11. Bb2 Bg7 12. Qd2 Nf8 13. Rfe1 Bf5 14. Rxe8 Qxe8 15. Re1 Qd7 16. Nh4 Bh3 17. Bxb7 Re8 18. Rxe8 Qxe8 19. Bg2 Qd7 20. Nf3 Qg4 21. Qg5 Qe6 22. d5 Qd7 23. Qe3 Bxg2 24. Kxg2 Ng4 25. Qxa7 Qf5 26. Nd1 Bxb2 27. Nxb2 Qc2 28. Qd4 Nh6 29. Qd2 Qb1 30. Qxh6 Qxb2 31. Qd2 Qa3 32. Nd4 Nd7 33. Nb5 Qc5 34. Qa5 Nb6 35. Qa3 Qxa3 36. Nxa3 Kf8 37. Nb5 Na8 38. a4 Ke7 39. a5 Kd7 40. Nd4 Kc8 41. Nc6 Kb7 42. b4 Kc8 43. Kf3 Kd7 44. Kf4 f6 45. h4 Ke8 46. Ke4 Kd7 47. Kd4 Ke8 48. c5 Kd7 49. Kc4 h6 50. Kb5 g5 51. Ka6 Kc8 52. Ka7 1-0
2022.10.11 Titled Tue 11th Oct Late
1160943 Koellner, Ruben Gideon (2403) Ardila, Oscar Humberto (1997) 1-0
1. d4 Nf6 2. Bg5 e6 3. Nd2 Be7 4. e4 d6 5. c3 Nbd7 6. f4 h6 7. Bxf6 Nxf6 8. Bd3 c5 9. Ne2 Qb6 10. Qb3 Qc7 11. O-O Bd7 12. h3 a6 13. a4 O-O 14. Nf3 Bc6 15. Ng3 Rac8 16. Qd1 b5 17. Qe2 cxd4 18. Nxd4 Qb6 19. axb5 axb5 20. Kh2 Rb8 21. b4 Qb7 22. Rfe1 Rfc8 23. Ra3 Qc7 24. Nxb5 Bxb5 25. Bxb5 d5 26. e5 Nh7 27. Bd3 Nf8 28. Rb3 Qb6 29. b5 Bc5 30. Ra1 Ra8 31. Rxa8 Rxa8 32. Rb2 Ra3 33. Qc2 Qa5 34. Rb3 Ra2 35. Qb1 Bb6 36. Ne2 Ra1 37. Qc2 Nd7 38. Rb1 Ra2 39. Rb2 Ra1 40. c4 Qe1 41. cxd5 Bf2 42. Rb1 Rxb1 43. Qxb1 Qxb1 44. Bxb1 exd5 45. Bd3 Nb6 46. g3 Kf8 47. Kg2 Bc5 48. Nc3 Ke7 49. Kf3 Ke6 50. g4 g5 51. Bf5+ Ke7 52. Ne2 Nc4 53. fxg5 Nd2+ 54. Kg2 hxg5 55. Bd3 Ne4 56. Bxe4 dxe4 57. Nc3 e3 58. Kf3 Ke6 59. Ne4 Bb6 60. Nxg5+ Kxe5 61. Nxf7+ Kd4 62. Ng5 Kd3 63. Kg2 e2 64. Nf3 Ke3 65. h4 Kf4 66. g5 Kf5 67. Ne1 Kg4 68. g6 Bd4 69. b6 Kh5 70. b7 Bc3 71. Nd3 Be5 72. g7 Bxg7 73. b8=Q Kxh4 74. Qf4+ Kh5 75. Qf5+ 1-0
2022.10.11 Titled Tue 11th Oct Late
1161059 Koellner, Ruben Gideon (2403) Suleymanli, Aydin (2532) 0-1
1. d4 Nf6 2. Bg5 g6 3. Bxf6 exf6 4. g3 Bg7 5. Bg2 O-O 6. e3 d5 7. Ne2 c6 8. O-O Bg4 9. b3 Bxe2 10. Qxe2 f5 11. c4 dxc4 12. bxc4 Nd7 13. Nc3 Nc5 14. Qc2 Qa5 15. Rab1 Rab8 16. Rb2 Rfc8 17. Rfb1 b6 18. h4 h5 19. Rb4 Qa3 20. R1b2 Ne6 21. c5 Nxc5 22. Nb1 Qa5 23. dxc5 Bxb2 24. Qxb2 Qxc5 25. Nd2 Rd8 26. Nf3 a5 27. Rb3 Rd1+ 28. Kh2 Qd6 29. Nd4 c5 30. Nb5 Qe6 31. Qc2 Rbd8 32. Rb2 g5 33. Nc7 Qe5 34. Nd5 R1xd5 35. Bxd5 Rxd5 36. hxg5 h4 37. Rxb6 hxg3+ 38. fxg3 Qxe3 39. Rb8+ Kh7 40. Kh3 Rd3 41. Qg2 Qxg5 42. Kh2 Qh5+ 43. Kg1 Rd1+ 44. Kf2 Rd2+ 45. Kg1 Rxg2+ 46. Kxg2 Qe2+ 47. Kh3 Qg4+ 48. Kg2 f4 49. Rb3 c4 50. Rf3 fxg3 51. Rxg3 Qxg3+ 52. Kxg3 c3 0-1
2022.10.11 Titled Tue 11th Oct Late
1161167 Owezdurdiyeva, J (2061) Koellner, Ruben Gideon (2403) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Be2 c6 6. O-O Be7 7. d5 h6 8. Nh4 g6 9. dxc6 bxc6 10. Nf3 Kf8 11. Ne1 Kg7 12. f4 exf4 13. Bxf4 Ne5 14. Kh1 Be6 15. Nd3 Nfd7 16. Qe1 Bg5 17. Bg3 h5 18. Rd1 h4 19. Bxe5+ dxe5 20. Nxe5 Qe7 21. Rxd7 Bxd7 22. Rxf7+ Qxf7 23. Nxf7 Kxf7 24. Bc4+ Kg7 25. e5 Rae8 26. Qd1 Bf5 27. Qd6 Rd8 28. Qc7+ Rd7 29. Qxc6 Rhd8 30. Kg1 Rd2 31. e6 Kh6 32. Bd5 Rxc2 33. g3 h3 34. Qb7 Be3+ 35. Kf1 Bd3+ 36. Ke1 Rf2 37. Ne2 Rxe2+ 38. Kd1 Rf2 39. Bg2 hxg2 0-1
2022.10.11 Titled Tue 11th Oct Late
1161297 Koellner, Ruben Gideon (2403) Aghayev, M (2430) 1-0
1. d4 d5 2. Nf3 a6 3. Nbd2 Nf6 4. e3 Bf5 5. Ne5 Nbd7 6. g4 Nxe5 7. gxf5 Ned7 8. Bd3 c5 9. c3 cxd4 10. exd4 e5 11. fxe6 fxe6 12. Nf3 Bd6 13. Qe2 Qe7 14. Be3 O-O 15. O-O-O b5 16. Kb1 b4 17. c4 dxc4 18. Bxc4 Nb6 19. Bb3 Nfd5 20. Bc1 a5 21. Bc2 a4 22. Ng5 g6 23. Nxh7 a3 24. Nxf8 axb2 25. Bxb2 Kxf8 26. Bxg6 Qa7 27. Qf3+ Kg7 28. Rdg1 Qxa2+ 29. Kc1 Rc8+ 30. Bc2+ Kh8 31. Qh5# 1-0
2022.10.11 Titled Tue 11th Oct Late
1161481 Bernadskiy, V (2570) Koellner, Ruben Gideon (2403) 1-0
1. d4 d6 2. Nf3 Nf6 3. Nc3 Nbd7 4. e4 e5 5. h3 c6 6. a4 Be7 7. Be3 h6 8. Bc4 Qc7 9. Qd2 Nf8 10. O-O-O Ng6 11. g4 Nh7 12. Kb1 a6 13. Bb3 b5 14. Rhg1 Rb8 15. Rg3 bxa4 16. Bxa4 Bd7 17. Qd3 a5 18. dxe5 dxe5 19. Qc4 O-O 20. Nd5 Qd6 21. Nxe7+ Qxe7 22. Bc5 Qe8 23. Bxf8 Nhxf8 24. Qc3 Rb4 25. Bb3 Rxe4 26. Rgg1 a4 27. Bc4 Be6 28. Bxe6 Qxe6 29. Rge1 Rxe1 30. Rxe1 f6 31. Nd2 Nf4 32. Re4 Qd5 33. h4 N8e6 34. g5 hxg5 35. hxg5 Nxg5 36. Rxa4 Qh1+ 37. Ka2 Kh7 38. Rc4 Qd5 39. b3 Nge6 40. Ne4 c5 41. Nxc5 Qa8+ 42. Kb2 Nd4 43. Nd3 Nfe2 44. Qe1 Qg2 45. f4 e4 46. Qh4+ Kg6 47. f5+ 1-0
2022.10.11 Titled Tue 11th Oct Late
1161575 Reshetnikov, Al (2492) Koellner, Ruben Gideon (2403) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. a5 Nf8 10. h3 g5 11. d5 Ng6 12. Bb3 a6 13. Be3 c5 14. Na4 g4 15. Nb6 Rb8 16. Nxc8 Qxc8 17. hxg4 Qxg4 18. Nd2 Qh4 19. Ba4+ Kf8 20. Qf3 Ng4 21. Nc4 Rg8 22. Bd7 Qh2+ 23. Kf1 Nh4 24. Qh3 Nxe3+ 25. Nxe3 Qxh3 26. Bxh3 Bg5 27. Nc4 Ke7 28. Ra3 Ng6 29. g3 h5 30. Bf5 h4 31. Rb3 hxg3 32. fxg3 Rgd8 33. Kf2 Rh8 34. Kg2 Rhg8 35. Rh1 Rgd8 36. Rb6 1-0
2022.09.27 Titled Tue 27th Sep Early
1169836 Gatterer, F (2167) Koellner, Ruben Gideon (2401) 0-1
1. Nf3 d6 2. d4 Nf6 3. c4 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Nbd7 7. Nc3 e5 8. e4 Re8 9. h3 h6 10. Re1 Kh7 11. Be3 a5 12. Qd2 c6 13. Rad1 Qc7 14. dxe5 dxe5 15. Qd6 Qxd6 16. Rxd6 Bf8 17. Rdd1 Bc5 18. Bxc5 Nxc5 19. Re2 Nh5 20. Ne1 Be6 21. b3 Red8 22. Red2 Rxd2 23. Rxd2 Ng7 24. Nb1 Kg8 25. Nd3 Nxd3 26. Rxd3 Kf8 27. Nc3 Ke7 28. Kf1 Bd7 29. Ke1 Ne6 30. Ne2 Nc5 31. Rd2 Be6 32. Nc3 f6 33. Ke2 a4 34. Nd5+ cxd5 35. exd5 axb3 36. axb3 Nxb3 37. Rb2 Nd4+ 38. Kd2 Bc8 39. f4 Ra3 40. d6+ Kxd6 41. Bxb7 Bxb7 42. Rxb7 Rxg3 43. Rb6+ Kc5 44. Rxf6 e4 45. h4 Kxc4 46. Rf8 e3+ 0-1
2022.09.27 Titled Tue 27th Sep Early
1170051 Koellner, Ruben Gideon (2401) Grandelius, N (2651) 0-1
1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Nbd2 b6 5. c3 Bb7 6. Ne5 Bd6 7. f4 Nbd7 8. Bd3 Ne4 9. Nxe4 dxe4 10. Bb5 Bxe5 11. dxe5 c6 12. Be2 Nc5 13. O-O Nd3 14. Qc2 c5 15. Rd1 c4 16. Qa4+ Qd7 17. Qxc4 Rd8 18. b3 O-O 19. Ba3 Rfe8 20. Bd6 Nb2 21. Qb5 Bc6 22. Qb4 Nxd1 23. Rxd1 Rc8 24. h3 Red8 25. Rd4 Qb7 26. Qa3 a5 27. c4 a4 28. b4 b5 29. c5 Bd5 30. Qb2 a3 31. Qd2 Ra8 32. Bd1 Qc6 33. Bc2 Bxa2 34. Bxe4 Bd5 35. Rxd5 exd5 36. Bxd5 Qxd5 37. Qxd5 a2 38. e6 a1=Q+ 39. Kh2 Qf6 40. f5 fxe6 41. fxe6 Re8 42. e7+ Qf7 43. Qe4 Ra7 44. Qc6 Raxe7 45. Bxe7 Qxe7 46. Qxb5 Qe5+ 47. Kh1 Qxe3 48. Qc4+ Kh8 49. c6 Qg3 50. Qc1 Re1+ 51. Qxe1 Qxe1+ 52. Kh2 Qxb4 0-1
2022.09.27 Titled Tue 27th Sep Early
1170250 Kislov, O (2206) Koellner, Ruben Gideon (2401) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. Ng5 O-O 7. Bxf7+ Rxf7 8. Ne6 Qe8 9. Nxc7 Qd8 10. Nxa8 b5 11. dxe5 Nxe5 12. Nd5 Nxd5 13. Qxd5 Bf8 14. Be3 Bb7 15. Qxb5 Bxe4 16. O-O-O Qxa8 17. f3 Bc6 18. Qb3 a5 19. a4 Kh8 20. f4 Rb7 21. Qc3 Bxg2 22. fxe5 Bxh1 23. Rxh1 Rc7 24. Qxc7 Qxh1+ 25. Kd2 Qxh2+ 26. Kd3 Qxe5 27. Bd4 Qf5+ 28. Kc3 h5 29. Qb8 h4 30. Qb5 Qf3+ 31. Kd2 h3 32. Qg5 Kg8 33. Qh4 Qg2+ 34. Bf2 h2 35. Qc4+ d5 36. Qh4 1-0
2022.09.27 Titled Tue 27th Sep Early
1170437 Deuer, Marius (2344) Koellner, Ruben Gideon (2401) 1-0
1. b3 d5 2. Bb2 Nd7 3. Nf3 e6 4. e3 c6 5. c4 Ngf6 6. d4 Bd6 7. Bd3 Ne4 8. O-O f5 9. Ba3 Bxa3 10. Nxa3 O-O 11. b4 a6 12. Rb1 g5 13. Bxe4 fxe4 14. Nd2 Nf6 15. Rb3 Qe8 16. b5 dxc4 17. Naxc4 axb5 18. Nd6 Qg6 19. Qc2 Rd8 20. N6xe4 Nxe4 21. Nxe4 e5 22. dxe5 Bf5 23. f3 Rd5 24. Qf2 Bxe4 25. fxe4 Rxe5 26. Rb4 Qg7 27. a4 bxa4 28. Qa2+ Kh8 29. Rf7 Qg6 30. Rbxb7 Qxe4 31. Qf2 Qg6 32. Rf8+ Qg8 33. Qf6# 1-0
2022.09.27 Titled Tue 27th Sep Early
1170578 Koellner, Ruben Gideon (2401) Mihailidis, A (2198) 1/2-1/2
1. d4 d5 2. Nf3 Nf6 3. Nbd2 e6 4. e3 Be7 5. Bd3 O-O 6. O-O c5 7. c3 Nc6 8. dxc5 Bxc5 9. b4 Bd6 10. a3 Ne5 11. Nxe5 Bxe5 12. Bb2 Bd7 13. Nf3 Bd6 14. c4 dxc4 15. Bxc4 Bc7 16. Rc1 Bc6 17. b5 Qxd1 18. Rfxd1 Bxf3 19. gxf3 Rfd8 20. Be2 Bb6 21. f4 Rxd1+ 22. Rxd1 Rd8 23. Rxd8+ Bxd8 24. Bf3 Nd5 25. Bxd5 exd5 26. Bd4 a6 27. bxa6 bxa6 28. Kf1 f6 29. Ke2 Kf7 30. Kd3 Ke6 31. Kc3 Ba5+ 32. Kb3 Be1 33. f3 Kd6 34. a4 Kc6 35. Kc2 Bb4 36. Kd3 Be7 37. h3 g6 38. e4 dxe4+ 39. fxe4 g5 40. fxg5 fxg5 41. Kc4 h5 42. Bg7 g4 43. hxg4 hxg4 44. Bd4 g3 45. Kd3 Bc5 46. Bxc5 Kxc5 47. Ke3 g2 48. Kf2 Kb4 49. e5 Kc5 50. Kxg2 Kd5 51. Kf3 Kxe5 52. Ke3 Kd5 53. Kd3 Kc5 54. Kc3 a5 55. Kb3 Kd4 56. Ka2 Kc4 57. Ka1 Kb4 58. Ka2 Kxa4 59. Ka1 Kb3 60. Kb1 a4 61. Ka1 a3 62. Kb1 Kb4 63. Ka1 Ka4 64. Kb1 Kb3 65. Ka1 a2 1/2-1/2
2022.09.27 Titled Tue 27th Sep Late
1171707 Koellner, Ruben Gideon (2401) Ward, I (2028) 1-0
1. d4 Nf6 2. Bg5 e6 3. Nd2 d5 4. e3 Be7 5. Bd3 h6 6. Bxf6 Bxf6 7. f4 Be7 8. c3 c5 9. Ngf3 Nc6 10. O-O Qc7 11. Ne5 O-O 12. Qh5 Nxe5 13. fxe5 Bd7 14. Rf3 f5 15. g4 Bg5 16. gxf5 exf5 17. Raf1 cxd4 18. cxd4 Be8 19. Qh3 Bd7 20. Qg3 Qc8 21. h4 Be7 22. Kh2 Be6 23. Qg6 Bxh4 24. Rxf5 Rxf5 25. Rxf5 Bxf5 26. Bxf5 Qd8 27. Qh7+ Kf8 28. Nf3 Kf7 29. Bg6+ Kf8 30. Qh8+ Ke7 31. Qxg7+ Ke6 32. Qf7# 1-0
2022.09.27 Titled Tue 27th Sep Late
1171830 Koellner, Ruben Gideon (2401) Bortnyk, Mykola (2461) 0-1
1. d4 Nf6 2. Bg5 d5 3. e3 Bf5 4. Bxf6 gxf6 5. c4 c6 6. Nc3 e6 7. Bd3 Bxd3 8. Qxd3 Qb6 9. Nge2 Qxb2 10. Rb1 Qa3 11. cxd5 cxd5 12. Rxb7 Nd7 13. Qb5 Qd6 14. O-O Be7 15. Qa4 Rc8 16. Nb5 Qc6 17. Qxa7 O-O 18. g3 Ra8 19. Rxd7 Rxa7 20. Rxa7 Qxb5 21. Nf4 Re8 22. Nh5 Qe2 23. Nf4 Qf3 24. Rc1 Bd6 25. Ra6 Bxf4 26. gxf4 Rb8 27. Rac6 Rb2 28. Rc8+ Kg7 29. R8c2 Rxc2 30. Rxc2 Qd1+ 0-1
2022.09.27 Titled Tue 27th Sep Late
1171994 Estrada Nieto, J (2260) Koellner, Ruben Gideon (2401) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Rg1 h6 6. g4 c6 7. g5 hxg5 8. Bxg5 Qb6 9. a3 exd4 10. Nxd4 Ne5 11. Be3 Nfg4 12. Nf5 Nxe3 13. Nxe3 Rxh2 14. Bg2 Qxb2 15. Na4 Qb5 16. Nc3 Qc5 17. Qd2 Be6 18. Na4 Qb5 19. Nc3 Qa5 20. Rb1 b5 21. Rh1 Rxg2 22. Kf1 Rg6 23. Rh8 O-O-O 24. f4 Nf3 25. Qd3 Rg1+ 26. Kf2 Rxb1 27. Nxb1 Ne1 28. Qe2 Be7 29. Rxd8+ Bxd8 30. Qxe1 Bh4+ 0-1
2022.09.27 Titled Tue 27th Sep Late
1172210 Melkumyan, H (2645) Koellner, Ruben Gideon (2401) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Qe2 Qc7 9. Rd1 Nf8 10. a5 Ng6 11. d5 O-O 12. Bb3 c5 13. a6 bxa6 14. Bc4 a5 15. Ra3 Bd8 16. Bd2 Qe7 17. Rda1 Nh5 18. g3 Bg4 19. Nd1 f5 20. Ne3 Nhf4 21. gxf4 Nxf4 22. Qd1 Bh5 23. Nxf5 Qf6 24. Bxf4 exf4 25. Kh1 g6 26. N5h4 g5 27. Ng2 Kh7 28. h3 Bg6 29. Bd3 Qg7 30. e5 dxe5 31. Bxg6+ Kxg6 32. Qd3+ Kf7 33. Qf5+ Bf6 34. Nxe5+ Kg8 35. Nd7 Bxb2 36. Nxf8 Bxa1 37. Ne6 Qf6 38. Qxf6 Bxf6 39. Rxa5 c4 40. d6 Kf7 41. Nc7 Rd8 42. Nb5 a6 43. Rxa6 Ke6 44. Ne1 Rb8 45. Nc7+ Kd7 46. Nd5 Bd4 47. Kg2 Rb1 48. Nf3 Rc1 49. Nxd4 Rd1 50. Nf6+ Kd8 51. Ra8# 1-0
2022.09.27 Titled Tue 27th Sep Late
1172338 Koellner, Ruben Gideon (2401) Goncalves, Davi Sulzbacher (2282) 1-0
1. d4 Nf6 2. Bg5 d5 3. e3 Bf5 4. Bxf6 exf6 5. c4 Bxb1 6. Qxb1 Bb4+ 7. Kd1 c5 8. a3 Ba5 9. Nf3 cxd4 10. Nxd4 Nc6 11. c5 O-O 12. Bd3 Re8 13. b4 Bc7 14. Bxh7+ Kf8 15. Bd3 Be5 16. Nxc6 bxc6 17. Ra2 g6 18. h4 d4 19. e4 Qd7 20. f3 Kg7 21. Ke2 Rh8 22. Kf2 Bf4 23. g3 Be3+ 24. Kg2 a5 25. Qb3 g5 26. h5 g4 27. f4 Rh6 28. Rh4 f5 29. exf5 Kh8 30. Rxg4 Rxh5 31. Kf3 Re8 32. bxa5 Bg1 33. Re2 Re3+ 34. Rxe3 Bxe3 35. Qb8+ 1-0
2022.09.27 Titled Tue 27th Sep Late
1172541 Koellner, Ruben Gideon (2401) So, W (2771) 0-1
1. d4 d5 2. Nf3 e6 3. Nbd2 Nf6 4. e3 c5 5. c3 b6 6. Ne5 Bb7 7. f4 Nbd7 8. Bd3 g6 9. Qf3 Bg7 10. h4 h5 11. Qg3 O-O 12. O-O Qe7 13. b3 Rac8 14. Ba3 Nxe5 15. fxe5 Ng4 16. Be2 Nh6 17. Bd3 Qc7 18. Rac1 Ng4 19. Be2 f5 20. Nf3 Nxe3 21. Qxg6 Qf7 22. Qxf7+ Kxf7 23. Ng5+ Ke7 24. Rfe1 Ng4 25. Bxg4 fxg4 26. Rf1 Kd7 27. Rxf8 Rxf8 28. dxc5 Rf5 29. cxb6 axb6 30. Bd6 Ba6 31. c4 dxc4 32. bxc4 Bxe5 33. Bxe5 Rxe5 34. Kh2 Re2 35. Kg3 Rxa2 36. Ne4 Ke7 37. c5 Bd3 38. Nf2 bxc5 39. Nxd3 Ra3 40. Rxc5 Rxd3+ 41. Kf4 Rd4+ 42. Ke5 Rd2 43. Rc7+ Rd7 44. Rc4 Rd5+ 45. Ke4 Kf6 46. Rc8 Re5+ 47. Kf4 Rf5+ 48. Ke4 Ra5 49. Rf8+ Kg7 50. Re8 Kf7 51. Rh8 Ra4+ 52. Ke5 Ra2 53. g3 Ra5+ 54. Kf4 Rf5+ 55. Ke4 Kg7 56. Re8 Kf7 57. Rh8 Kf6 58. Rf8+ Kg6 59. Rg8+ Kh7 60. Re8 Rf6 61. Ke5 Rf3 62. Re7+ Kg6 63. Rxe6+ Kg7 64. Re7+ Kg8 65. Re8+ Kf7 66. Rh8 Kg6 67. Rg8+ Kh7 68. Ra8 Rxg3 69. Kf5 Rb3 70. Ra7+ Kh6 71. Ra6+ Kg7 72. Ra7+ Kf8 73. Ra8+ Ke7 74. Ra7+ Kd6 75. Ra6+ Kc7 76. Ra7+ Rb7 77. Ra5 Kc6 78. Kg5 Rb5+ 79. Rxb5 Kxb5 80. Kxh5 g3 81. Kg6 g2 82. h5 g1=Q+ 83. Kh7 Kc6 84. h6 Kd7 85. Kh8 Qf2 86. Kg8 Ke7 87. h7 Qg3+ 0-1
2022.09.27 Titled Tue 27th Sep Late
1172580 Buscar, M (2041) Koellner, Ruben Gideon (2401) 1/2-1/2
1. Nf3 d6 2. g3 Nf6 3. Bg2 g6 4. d3 Bg7 5. Bd2 O-O 6. Qc1 e5 7. Bh6 Nbd7 8. h4 Bxh6 9. Qxh6 Ng4 10. Qd2 h5 11. Nc3 c6 12. e4 Kg7 13. Nd1 Qb6 14. O-O Nc5 15. c3 Re8 16. Ne3 Nxe3 17. fxe3 f6 18. b4 Nd7 19. Qf2 Rf8 20. Bh3 Qc7 21. Qg2 Nb6 22. Bxc8 Qxc8 23. Rf2 Qe6 24. Raf1 Na4 25. c4 Nb6 26. Nh2 Nd7 27. g4 Kf7 28. g5 Ke7 29. gxf6+ Rxf6 30. Nf3 Raf8 31. Ng5 Rxf2 32. Rxf2 Rxf2 33. Kxf2 Qf6+ 34. Qf3 Qxf3+ 35. Kxf3 Nf8 36. d4 Ne6 37. d5 Nxg5+ 38. hxg5 c5 39. b5 a5 40. a4 Kd8 41. Kg3 Kc7 42. Kh4 b6 43. Kh3 Kd7 44. Kh4 Ke7 45. Kh3 Kf7 46. Kh4 Kg7 47. Kh3 Kh7 48. Kh4 Kg7 49. Kh3 Kh7 50. Kh4 Kg7 1/2-1/2
2022.09.27 Titled Tue 27th Sep Late
1172732 Koellner, Ruben Gideon (2401) Gonzalez, Francisco Silva (2037) 1-0
1. d4 Nf6 2. Nf3 d5 3. Nbd2 c5 4. e3 Nc6 5. c3 cxd4 6. exd4 Bf5 7. Nh4 Bg4 8. Qb3 Na5 9. Qa4+ Nc6 10. h3 Bd7 11. Qb3 Na5 12. Qd1 a6 13. Bd3 Qc8 14. O-O g6 15. Re1 Bg7 16. Nb3 Nxb3 17. axb3 O-O 18. Bf4 Re8 19. Ra5 b6 20. Ra3 a5 21. Qc2 Bxh3 22. gxh3 Qxh3 23. Bg3 Nh5 24. Bf1 Qg4 25. Qe2 Qg5 26. Qe3 Qg4 27. Be2 Qh3 28. Bxh5 gxh5 29. Qf3 Qg4 30. Qxg4 hxg4 31. Nf5 e6 32. Nxg7 Kxg7 33. Bc7 Ra6 34. b4 Rc8 35. Be5+ f6 36. Bg3 Kf7 37. Rea1 Rca8 38. bxa5 Rxa5 39. Rxa5 bxa5 40. b4 a4 41. b5 Ra5 42. b6 Rb5 43. Bc7 e5 44. Rxa4 e4 45. Rb4 Rxb6 46. Rxb6 h5 47. Bg3 f5 48. Kg2 h4 49. Bxh4 f4 50. Rf6+ Ke7 51. Rxf4+ Kd6 52. Rxg4 Kc6 53. Rg5 Kb5 54. Rxd5+ Kc4 55. Rc5+ Kd3 56. Bg5 e3 57. Bxe3 Ke4 58. Kg3 Kd3 59. Kf4 Kc2 60. Ke4 Kd1 61. Ra5 Ke2 62. Ra2+ Kd1 63. f4 Ke1 64. Kf3 Kd1 65. c4 1-0
2022.09.27 Titled Tue 27th Sep Late
1172875 Zochowski, K (2257) Koellner, Ruben Gideon (2401) 1/2-1/2
1. Nf3 d6 2. d4 Nf6 3. b3 g6 4. Bb2 Bg7 5. g3 O-O 6. Bg2 Nbd7 7. c4 Re8 8. O-O c6 9. Nc3 Qc7 10. Qd2 e5 11. e3 exd4 12. Nxd4 Nc5 13. b4 Nce4 14. Nxe4 Nxe4 15. Qc2 Qe7 16. b5 Bd7 17. Rad1 Rac8 18. bxc6 bxc6 19. Ba3 c5 20. Nb5 Bxb5 21. cxb5 Nc3 22. Rd2 Nxb5 23. Bb2 Bxb2 24. Qxb2 Nc7 25. Rfd1 Rcd8 26. Qb7 Ne6 27. Qxe7 Rxe7 28. Rxd6 Rxd6 29. Rxd6 Rc7 30. Kf1 c4 31. Ke2 Nc5 32. Kd2 Nd3 33. Kc3 Nxf2 34. Bd5 Ng4 35. e4 Nxh2 36. Bxc4 Nf3 37. Kb4 Ne5 38. Bd5 Kg7 39. Ka5 h5 40. Ka6 g5 41. Bb7 Rc3 42. Bd5 Ra3+ 43. Kb7 a5 44. Rd8 Rxg3 45. Re8 Kf6 46. Kb6 a4 47. Ka5 a3 48. Kb4 h4 49. Rh8 Kg7 50. Re8 Kf6 51. Rh8 Nd3+ 52. Kxa3 Nf4+ 53. Kb4 Nxd5+ 54. exd5 Kg7 55. Rh5 Kg6 56. Rh8 Kg7 57. Rh5 f6 58. d6 Rd3 59. Kc5 Kg6 60. Rh8 Kg7 61. Rh5 Kg6 62. Rh8 f5 63. Kc6 f4 64. d7 f3 65. d8=Q Rxd8 66. Rxd8 g4 67. a4 f2 68. Rf8 g3 69. a5 g2 70. Rg8+ Kh7 71. Rxg2 f1=Q 72. Rc2 Qf5 73. Rc5 Qf6+ 74. Kb7 Qf7+ 75. Rc7 Qxc7+ 76. Kxc7 h3 77. a6 h2 78. a7 h1=Q 79. Kb8 Qb1+ 80. Kc8 Qc2+ 81. Kb8 Qb3+ 82. Kc8 Qc4+ 83. Kb8 Qb5+ 84. Kc8 Qa6+ 85. Kb8 Qb6+ 86. Ka8 Qc6+ 87. Kb8 Qb5+ 88. Ka8 Qe8+ 89. Kb7 Qd7+ 90. Kb8 Qd8+ 91. Kb7 Qe7+ 92. Kb8 Qb4+ 93. Ka8 Kg6 1/2-1/2
2022.09.27 Titled Tue 27th Sep Late
1172937 Koellner, Ruben Gideon (2401) Mickiewicz, P (2284) 1-0
1. d4 Nf6 2. Bg5 c5 3. Bxf6 gxf6 4. d5 f5 5. c4 Bg7 6. Qc2 d6 7. Nc3 Qa5 8. Rc1 Nd7 9. e3 Nf6 10. Bd3 Ne4 11. Ne2 Nxc3 12. Nxc3 Bxc3+ 13. Qxc3 Qxc3+ 14. Rxc3 e5 15. g3 Ke7 16. Kd2 b6 17. a3 Bd7 18. b4 f4 19. exf4 exf4 20. Re1+ Kf6 21. Bc2 fxg3 22. Rf3+ Kg7 23. hxg3 Rae8 24. Rh1 h6 25. Rh4 f6 26. Rhf4 Rhf8 27. b5 a5 28. bxa6 Ra8 29. Re3 Rf7 30. Bf5 Bxf5 31. Rxf5 Rxa6 32. Kc2 Ra4 33. Rf4 Rb7 34. Kb3 b5 35. cxb5 Rxf4 36. gxf4 Rxb5+ 37. Kc4 Ra5 38. f5 h5 39. Rg3+ 1-0
2022.09.27 Titled Tue 27th Sep Late
1173035 Mikhailov, Vi (2428) Koellner, Ruben Gideon (2401) 1-0
1. Nf3 Nf6 2. g3 d5 3. Bg2 Nbd7 4. O-O e5 5. c4 c6 6. cxd5 cxd5 7. d3 Bd6 8. Nc3 a6 9. Bg5 h6 10. Bxf6 Nxf6 11. Nd2 Be6 12. Qb3 d4 13. Nd5 Rb8 14. Nxf6+ Qxf6 15. Bd5 Ke7 16. Ne4 Bxd5 17. Qxd5 Qe6 18. Qa5 Rhc8 19. Rfc1 f5 20. Nd2 Kf6 21. Nf3 g5 22. Qb6 Be7 23. Qa5 g4 24. Nh4 Kf7 25. Rc7 b6 26. Rxc8 Rxc8 27. Qxa6 Bxh4 28. gxh4 Rc2 29. Qb7+ Kg6 30. a4 Rxe2 31. Rc1 Kh5 32. b4 Kxh4 33. Kf1 Rb2 34. Qg7 1-0
2022.09.20 Titled Tue 20th Sep Late
1177481 Koellner, Ruben Gideon (2401) Prydun, Andriy (2134) 1-0
1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d5 4. e3 c6 5. Bd3 Nf6 6. Nd2 e6 7. c3 Be7 8. Ngf3 O-O 9. Ne5 b6 10. h4 Bb7 11. g4 Nbd7 12. Qc2 c5 13. g5 c4 14. gxf6 cxd3 15. fxe7 dxc2 16. exd8=Q Rfxd8 17. Rc1 1-0
2022.09.20 Titled Tue 20th Sep Late
1177648 Koellner, Ruben Gideon (2401) Lenderman, A (2535) 0-1
1. d4 d5 2. Bf4 c5 3. e3 cxd4 4. exd4 Nc6 5. c3 Bf5 6. Bd3 Bxd3 7. Qxd3 e6 8. Nf3 Bd6 9. Bxd6 Qxd6 10. O-O Nf6 11. Nbd2 O-O 12. Rfe1 Rab8 13. a4 a6 14. a5 Qc7 15. b4 Rbc8 16. Re3 Ne7 17. Ne5 Nf5 18. Rh3 h6 19. Re1 Nd6 20. g4 Nfe4 21. Nb1 f6 22. Ng6 Rfe8 23. Rhe3 Qf7 24. Nh4 Nb5 25. Rc1 Ned6 26. Qg6 Qxg6 27. Nxg6 Kf7 28. Nf4 g5 29. Nd3 Ne4 30. Nc5 Nxc5 31. dxc5 Rcd8 32. Rd1 e5 33. Red3 d4 34. c4 Na7 35. f3 Nc6 36. Rb3 e4 37. fxe4 Rxe4 38. h3 d3 39. Rbxd3 Rxd3 40. Rxd3 Rxc4 41. Nc3 Ne5 42. Re3 Rxb4 43. Ne4 Ke6 44. Re2 Rb5 45. Rf2 Nd7 46. Rd2 Nxc5 47. Nxc5+ Rxc5 48. Rb2 Rb5 49. Re2+ Kf7 50. Rc2 Kg6 51. Rc7 h5 52. Kg2 Rb2+ 53. Kg3 h4+ 54. Kf3 Rh2 55. Rxb7 Rxh3+ 56. Kf2 Ra3 57. Kg2 Rxa5 58. Ra7 Ra3 59. Kh2 Rg3 0-1
2022.09.20 Titled Tue 20th Sep Late
1177812 Kazmaier, D (2171) Koellner, Ruben Gideon (2401) 0-1
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Nfd2 f5 5. e3 Nf6 6. Nc3 c5 7. d5 Nbd7 8. Be2 Ne5 9. O-O g6 10. f4 Neg4 11. Nb3 Bg7 12. h3 Nh6 13. Bd2 O-O 14. a4 a5 15. Nb5 b6 16. Bc3 Ne8 17. g3 Nc7 18. Bxg7 Kxg7 19. Rf2 Nxb5 20. cxb5 Bb7 21. Bc4 Qf6 22. Qe2 Ng8 23. Rd1 Ne7 24. Qc2 h6 25. Qc3 Rg8 26. g4 Kf7 27. Qxf6+ Kxf6 28. Nc1 fxg4 29. hxg4 h5 30. g5+ Kf7 31. Kf1 Bc8 32. Ke1 Bg4 33. Be2 Nf5 34. Bxg4 hxg4 35. Ke2 Rh8 36. Rg2 Rh3 37. Rxg4 Nxe3 38. Rgg1 Nxd1 39. Rxd1 Rah8 40. Kd2 Rf3 41. Ne2 Rh2 42. Re1 Rd3+ 0-1
2022.09.20 Titled Tue 20th Sep Late
1177942 Rego, P (2273) Koellner, Ruben Gideon (2401) 0-1
1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. c3 Nbd7 5. Nf3 d5 6. Nxe5 dxe4 7. Nxd7 Bxd7 8. Bc4 Bd6 9. Bg5 h6 10. Bh4 O-O 11. O-O Re8 12. Re1 b5 13. Bd5 g5 14. Bxa8 gxh4 15. Bb7 Qb8 16. Ba6 Qb6 17. Bxb5 Qxb5 18. Nd2 Qg5 19. Nf1 Bh3 20. Ne3 Ng4 21. Nxg4 Bxg4 22. Qa4 Re6 23. Re3 Bf4 24. Rae1 Bxe3 25. Rxe3 Bf3 26. g3 hxg3 27. fxg3 Qxe3+ 28. Kf1 Qe2+ 29. Kg1 Qg2# 0-1
2022.09.20 Titled Tue 20th Sep Late
1178087 Koellner, Ruben Gideon (2401) Iliaguev, Nisim (2364) 0-1
1. d4 Nf6 2. Bg5 e6 3. Nd2 h6 4. Bh4 d5 5. e3 Be7 6. Bd3 b6 7. c3 O-O 8. Qe2 c5 9. Bxf6 Bxf6 10. f4 a5 11. a4 Ba6 12. Ngf3 Bxd3 13. Qxd3 Nc6 14. O-O Qc8 15. Ne5 Bxe5 16. fxe5 Qa6 17. Qxa6 Rxa6 18. Ra2 Rb8 19. Rfa1 Ra7 20. Kf2 Rab7 21. Ke2 c4 22. b3 cxb3 23. Nxb3 Rc7 24. Nd2 Ne7 25. Kd3 Rc6 26. Rb1 Rb7 27. Rb5 Rbc7 28. Ra3 Nc8 29. Rab3 Kf8 30. e4 dxe4+ 31. Nxe4 Ke7 32. Nd6 Nxd6 33. exd6+ Rxd6 34. Rxb6 Rdd7 35. Ra6 e5 36. Rxa5 exd4 37. cxd4 Rc1 38. Re5+ Kd8 39. Rb4 Rd1+ 40. Ke3 f6 41. Reb5 Ke7 42. Rb7 Rxd4 43. Rxd7+ Rxd7 44. a5 Ra7 45. Ra4 Kd6 46. Kd4 Kc6 47. Kc4 g6 48. Ra2 Rc7 49. a6 Kb6+ 50. Kd5 Ka7 51. Ke6 f5 0-1
2022.09.20 Titled Tue 20th Sep Late
1178223 Alexikov, A (2223) Koellner, Ruben Gideon (2401) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. Qe2 c6 7. a4 h6 8. O-O Qc7 9. Rd1 Nf8 10. b3 Ng6 11. Bb2 O-O 12. h3 b6 13. Qe3 a6 14. dxe5 dxe5 15. Ne2 Rb8 16. Ng3 Bc5 17. Qe1 b5 18. axb5 axb5 19. Bf1 Be6 20. Nf5 Rfd8 21. Rxd8+ Rxd8 22. Rd1 Rxd1 23. Qxd1 Nxe4 24. Ne3 Ng3 25. b4 Nxf1 26. bxc5 Nxe3 27. fxe3 Bd5 28. Kf2 Qe7 29. Ba3 f5 30. Qd2 Qe6 31. Bb2 Kf7 32. Qc3 Bxf3 33. gxf3 Qc4 34. Qxc4+ bxc4 35. Bc3 Ke6 36. f4 Kd5 37. Kg3 Kxc5 38. fxe5 Kd5 39. e6 Kxe6 40. Bxg7 h5 41. Bc3 Kd5 42. Kf3 Ke6 43. Bd4 Kd6 44. Bc3 Kd5 45. Bb2 Kc5 46. Bc3 Kb5 47. Bd4 Kb4 48. Ke2 Kb5 49. Bc3 Kc5 50. Kf3 Kd5 51. Bb2 Kd6 52. Bc3 Kc7 53. Bd4 Kb7 54. e4 fxe4+ 55. Kxe4 Kc7 56. Kf5 Ne7+ 57. Kg5 Kd7 58. Kxh5 Nf5 59. Bf2 Ke6 60. Kg6 1-0
2022.09.20 Titled Tue 20th Sep Late
1178279 Mendez Fortes, E (2250) Koellner, Ruben Gideon (2401) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O c6 7. a4 h6 8. Re1 Qc7 9. Qd3 Nf8 10. d5 Ng6 11. b4 O-O 12. b5 c5 13. Qd1 Nh7 14. Bd3 f5 15. exf5 Bxf5 16. Bxf5 Rxf5 17. Nd2 Raf8 18. Nce4 Ng5 19. Nxg5 Bxg5 20. Ne4 Bxc1 21. Qxc1 Nf4 22. Qe3 Nxd5 23. Qd2 Nb4 24. f3 d5 25. Ng3 d4 26. Nxf5 Rxf5 27. c4 Qf7 28. Rac1 Rg5 29. a5 Qf5 30. Red1 Qxf3 31. Qxg5 Qxd1+ 32. Rxd1 hxg5 33. Re1 Nd3 34. Re4 Kf7 35. g3 Kf6 36. Re2 Kf5 37. Kg2 e4 38. h3 e3 39. Kf3 Ne5+ 40. Kg2 Ke4 0-1
2022.09.20 Titled Tue 20th Sep Late
1178403 Koellner, Ruben Gideon (2401) Goncalves, Davi Sulzbacher (2282) 1-0
1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 b6 5. Bd3 Bb7 6. O-O Be7 7. c3 O-O 8. Qe2 d5 9. Ne5 Nc6 10. f4 Qc7 11. Qf3 Nd7 12. Qh3 f5 13. g4 g6 14. gxf5 exf5 15. Ndf3 Ncxe5 16. fxe5 Qc6 17. Bd2 Rf7 18. Kh1 Nf8 19. Rg1 Ne6 20. Bxf5 Ng7 21. Bd3 Raf8 22. Raf1 Bc8 23. Qg2 Bf5 24. Bxf5 Rxf5 25. Ne1 Qe6 26. Rxf5 Nxf5 27. Rf1 Kg7 28. Nd3 Nh4 29. Qe2 Qg4 30. Qxg4 Rxf1+ 31. Qg1 Rxg1+ 32. Kxg1 Nf3+ 33. Kf2 Nxd2 34. Nf4 Kf7 35. Nxd5 Ke6 36. Nf4+ Kf5 37. Ke2 Nc4 38. Nd5 Bd8 39. b3 Na5 40. Kf3 Nc6 41. e4+ Ke6 42. Ke3 cxd4+ 43. cxd4 1-0
2022.09.20 Titled Tue 20th Sep Late
1178449 Yurovskykh, Oleksandr (2328) Koellner, Ruben Gideon (2401) 0-1
1. d4 d6 2. Nf3 Nf6 3. Bg5 Nbd7 4. e3 h6 5. Bh4 e5 6. c4 Be7 7. Nc3 O-O 8. Be2 exd4 9. Nxd4 Nc5 10. O-O Nce4 11. Nxe4 Nxe4 12. Bxe7 Qxe7 13. Qc2 Nc5 14. b4 Ne6 15. Rfd1 Nxd4 16. Rxd4 Be6 17. Bf3 Qf6 18. Rad1 Rab8 19. a3 Qe7 20. g3 Rfe8 21. h4 Qf6 22. Bg2 Qe7 23. Bf3 Qf6 24. Bg2 Bf5 25. Qd2 Qe7 26. Qc3 Be6 27. Bd5 Qf6 28. c5 Bxd5 29. cxd6 cxd6 30. Qd2 Be4 31. Rxd6 Qf3 32. Kf1 Qh1+ 33. Ke2 Bf3+ 0-1
2022.09.20 Titled Tue 20th Sep Late
1178544 Koellner, Ruben Gideon (2401) Tristan, L (2546) 0-1
1. d4 d5 2. Nf3 Nf6 3. Nbd2 Bf5 4. e3 e6 5. Ne5 Nbd7 6. g4 Be4 7. f3 Nxe5 8. dxe5 Nxg4 9. Nxe4 Nxe5 10. Ng3 h5 11. f4 h4 12. Ne2 Nc4 13. Nc3 h3 14. Bxc4 Qh4+ 15. Kf1 dxc4 16. Bd2 O-O-O 17. Qe2 Bc5 18. Ne4 Bb6 19. Rg1 Qh7 20. Qxc4 Rxd2 21. Nxd2 Bxe3 22. Ke2 Bxg1 23. Rxg1 Rd8 24. Nf3 Rd5 25. Rd1 b5 26. Qc3 Qe4+ 0-1
2022.09.20 Titled Tue 20th Sep Late
1178655 Hirneise, J (2316) Koellner, Ruben Gideon (2401) 0-1
1. d4 d6 2. Nf3 Nf6 3. g3 Nbd7 4. Bg2 e5 5. dxe5 Nxe5 6. Nxe5 dxe5 7. Qxd8+ Kxd8 8. O-O c6 9. Nc3 Kc7 10. Bg5 Be6 11. Rfd1 Nd7 12. Be3 Be7 13. h4 Rhd8 14. Ne4 f6 15. b3 Nb6 16. a4 Rxd1+ 17. Rxd1 Rd8 18. Rxd8 Kxd8 19. a5 Nd5 20. Bxa7 Bb4 21. Nc5 Bc8 22. c4 Ne7 23. Bb6+ Ke8 24. Nd3 Bc3 25. b4 Be6 26. b5 Bxc4 27. a6 bxa6 28. bxc6 Bxd3 29. exd3 a5 30. Kf1 Bb4 31. Ke2 Nc8 32. Bc7 a4 33. Kd1 Bc5 34. Kc2 Bxf2 35. Bh3 Ne7 36. Bd7+ Kf7 37. Bd6 Nd5 38. c7 Nxc7 39. Bxc7 Bxg3 40. h5 a3 41. Kb3 g6 42. hxg6+ Kxg6 43. Kxa3 h5 44. Bh3 Bf2 45. Kb3 Kg5 46. Bd8 Bh4 47. Kc2 Kf4 48. Kd1 Kg3 49. Bf5 Bg5 50. Ke2 h4 51. Be6 h3 52. Bxh3 Kxh3 53. Kf3 Kh4 54. Be7 f5 55. Bxg5+ Kxg5 56. Ke3 Kg4 57. Kf2 Kf4 58. Ke2 Kg3 59. Ke3 f4+ 60. Ke4 f3 61. Kxe5 f2 62. d4 f1=Q 63. d5 Qf7 0-1
2022.09.13 Titled Tue 13th Sep Early
1182434 Koellner, Ruben Gideon (2401) Sohier, J (2171) 1-0
1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 Be7 5. Bd3 O-O 6. O-O c5 7. c3 b6 8. e4 dxe4 9. Nxe4 Bb7 10. Nxf6+ Bxf6 11. dxc5 bxc5 12. Be3 Qc7 13. Qe2 a5 14. Rfd1 Ba6 15. Bxa6 Rxa6 16. Qc4 Rc8 17. Bf4 Qb7 18. Rd2 Rb6 19. b3 Qa6 20. Qxa6 Rxa6 21. Rc1 a4 22. Ne5 axb3 23. axb3 g5 24. Bg3 h5 25. h3 Ra3 26. Rb1 Nc6 27. Nc4 Ra6 28. Rd3 Rca8 29. Kf1 Ra1 30. Rxa1 Rxa1+ 31. Ke2 Ne7 32. Ne3 Ra2+ 33. Rd2 Rxd2+ 34. Kxd2 Nd5 35. Nxd5 exd5 36. Bd6 d4 37. Bxc5 dxc3+ 38. Kd3 g4 39. Bb4 gxh3 40. gxh3 Bh4 41. f3 Bg3 42. Bxc3 Kf8 43. Ke4 Ke7 44. Be5 Bf2 45. b4 Ke6 46. b5 f5+ 47. Kf4 h4 48. Bc3 Bg3+ 49. Kg5 Kd5 50. Kxf5 Kc5 51. Bf6 Kxb5 52. Kg4 Kc4 53. Bxh4 Bh2 54. Bf6 1-0
2022.09.13 Titled Tue 13th Sep Early
1182586 Bok, B (2618) Koellner, Ruben Gideon (2401) 0-1
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. g3 Bg7 5. Bg2 O-O 6. Nc3 Nbd7 7. O-O e5 8. e4 Re8 9. h3 c6 10. Re1 a6 11. Be3 b5 12. dxe5 Nxe5 13. c5 Nxf3+ 14. Bxf3 dxc5 15. Qxd8 Rxd8 16. e5 Nd5 17. Nxd5 cxd5 18. Bxc5 Bxh3 19. g4 Rac8 20. b4 h5 21. gxh5 gxh5 22. Bxh5 d4 23. Rad1 d3 24. Kh2 Bf5 25. Kg3 Bf8 26. Bxf8 Kxf8 27. Re3 d2 28. Re2 Rc2 29. a3 Ra2 30. f3 Be6 31. Re3 Rb2 32. f4 Bb3 33. Rh1 d1=Q 34. Bxd1 Rxd1 35. Rh8+ Kg7 36. Rh2 Rg1+ 37. Kh3 Be6+ 0-1
2022.09.13 Titled Tue 13th Sep Early
1182826 Koellner, Ruben Gideon (2401) Demchenko, A (2645) 0-1
1. d4 d5 2. Nf3 Nf6 3. e3 c6 4. Nbd2 Bf5 5. Ne5 h6 6. g4 Bh7 7. Bd3 Bxd3 8. cxd3 Nbd7 9. f4 e6 10. Ndf3 c5 11. g5 hxg5 12. Nxg5 Nxe5 13. dxe5 Nd7 14. h4 Be7 15. Qf3 Qb6 16. Bd2 Bxg5 17. hxg5 Rxh1+ 18. Qxh1 Qxb2 19. Ke2 O-O-O 20. Rb1 Qc2 21. Rc1 Qa4 22. Qh7 b6 23. Qxg7 Rf8 24. Rh1 c4 25. Rc1 b5 26. g6 fxg6 27. Qxg6 Rh8 28. dxc4 dxc4 29. Rg1 Qxa2 30. Rg2 c3 31. Kf3 cxd2 32. Qd3 Rh3+ 33. Kg4 d1=Q+ 34. Qxd1 Qxg2# 0-1
2022.09.13 Titled Tue 13th Sep Early
1183046 Puranik, A (2603) Koellner, Ruben Gideon (2401) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. g4 Nb6 7. Be2 Bxg4 8. d5 c6 9. dxc6 bxc6 10. Be3 O-O 11. Rg1 Re8 12. Nh4 Be6 13. Qd2 d5 14. Bh6 g6 15. O-O-O d4 16. Nf3 dxc3 17. Qxc3 Qc7 18. Ng5 Bf8 19. Bxf8 Kxf8 20. Qf3 Kg7 21. h4 h5 22. Qc3 Rad8 23. Rdf1 Qd6 24. f4 Bg4 25. Bxg4 hxg4 26. f5 Qd4 27. Qe1 Nc4 28. c3 Qe3+ 29. Qxe3 Nxe3 30. Re1 Nc4 31. fxg6 fxg6 32. b3 Nd6 33. Kc2 Nf7 34. Re2 Nxg5 35. hxg5 Nh5 36. Rxg4 Rf8 37. b4 Rf4 38. Rg1 Rf3 39. Rge1 Rdd3 40. Kb2 Rxc3 41. Rd2 Rcd3 42. Rc2 Rd6 43. Rec1 Rg3 44. Rxc6 Rxc6 45. Rxc6 Rxg5 46. Rc7+ Kh6 47. Rxa7 Rg2+ 48. Ka3 g5 49. b5 Rg1 0-1
2022.09.13 Titled Tue 13th Sep Early
1183246 Cardoso Cardoso, Jose Gabriel (2502) Koellner, Ruben Gideon (2401) 1-0
1. Nf3 d6 2. d4 Nf6 3. Bg5 Nbd7 4. Nbd2 h6 5. Bxf6 Nxf6 6. e4 e5 7. c3 exd4 8. Nxd4 g6 9. Bb5+ c6 10. Bd3 Bg7 11. O-O O-O 12. h3 Re8 13. Re1 Qc7 14. N2f3 Bd7 15. Qc2 Rad8 16. Rad1 Bc8 17. Bc4 d5 18. exd5 Rxe1+ 19. Rxe1 Nxd5 20. Qe4 Qd6 21. Bxd5 Qxd5 22. Qxd5 cxd5 23. Re7 Kf8 24. Rc7 Bf6 25. Nb5 a6 26. Na7 Be6 27. Rxb7 Rd6 28. Nd4 Bd7 29. Rb8+ Kg7 30. Nc8 Bxc8 31. Rxc8 Bxd4 32. cxd4 Rb6 33. Rc2 Rb4 34. Rd2 Kf6 35. Kf1 Kf5 36. Ke2 Ke4 37. f3+ Kf4 38. Kf2 Rb6 39. g3+ Kf5 40. Ke3 Re6+ 41. Kf2 Rc6 42. Re2 Kf6 43. Ke3 Rc1 44. Kd3 Rd1+ 45. Kc3 Rc1+ 46. Kd2 Rg1 47. g4 Rg3 48. h4 Rxf3 49. Re5 Rf4 50. g5+ Kg7 51. Rxd5 Rxh4 52. a4 hxg5 53. b4 g4 54. b5 axb5 55. axb5 f5 56. b6 Rh8 57. Ke3 Kf6 58. b7 Rb8 59. Rb5 g5 60. Rb6+ Ke7 61. Rg6 Kf7 62. Rh6 Kg7 63. Rb6 Kf7 64. d5 Ke7 65. Rg6 Kf7 66. Rh6 Kg7 67. Rb6 Kf7 68. Kd4 g3 69. Ke3 f4+ 70. Kf3 Ke7 71. Rg6 Kf7 72. Rh6 Kg7 73. Rb6 Kf7 74. Rh6 Kg7 75. Rb6 Kh7 76. d6 Kg7 77. d7 Kf7 78. d8=Q Rxd8 79. b8=Q Rxb8 80. Rxb8 Kf6 81. Rb5 Kg6 82. Kg4 Kf6 83. Rf5+ Ke6 84. Rxg5 f3 85. Kxf3 g2 86. Rxg2 1-0
2022.09.13 Titled Tue 13th Sep Early
1183291 Koellner, Ruben Gideon (2401) Ovchinnikov, Vsevolod (2426) 0-1
1. d4 Nf6 2. Bg5 d5 3. e3 Nbd7 4. Nd2 e5 5. dxe5 Nxe5 6. Ngf3 Bd6 7. c4 Nxc4 8. Nxc4 dxc4 9. Bxc4 Bb4+ 10. Ke2 Qe7 11. Bxf6 gxf6 12. Qd4 Rg8 13. Rad1 Rg4 14. Qd3 Bd7 15. h3 Rxg2 16. Qxh7 O-O-O 17. Nd4 Bc5 18. Qxf7 Qe5 19. Nf3 Qxe3+ 20. Kf1 Qxf2# 0-1
2022.08.30 Titled Tue 30th Aug Early
1194538 Tang, Andrew (2505) Koellner, Ruben Gideon (2401) 1-0
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Ng5 f5 5. Nc3 Be7 6. Nh3 Nf6 7. g3 c5 8. d5 Nbd7 9. Bg2 Ne5 10. b3 O-O 11. O-O Re8 12. f3 exf3 13. exf3 Bf8 14. Re1 Bd7 15. Nf4 a6 16. Ne6 Qa5 17. Bd2 Qb6 18. f4 Neg4 19. Qc2 g6 20. Na4 Bxa4 21. bxa4 Re7 22. Bc3 Kf7 23. Rab1 Qa7 24. h3 Nh6 25. Ng5+ Kg7 26. Bxf6+ 1-0
2022.08.30 Titled Tue 30th Aug Early
1194787 Koellner, Ruben Gideon (2401) Fernandez Siles, L (2220) 1-0
1. d4 Nf6 2. Bg5 d5 3. e3 Nbd7 4. Nd2 c5 5. c3 e6 6. f4 h6 7. Bxf6 Nxf6 8. Bd3 b6 9. Ngf3 Be7 10. Ne5 O-O 11. Qf3 Bb7 12. g4 Nd7 13. Nxd7 Qxd7 14. h4 f5 15. g5 hxg5 16. hxg5 Kf7 17. Qh5+ g6 18. Qh7+ Ke8 19. Qxg6+ Kd8 20. Rh7 Kc7 21. Nf3 cxd4 22. Ne5 Qd6 23. exd4 Rae8 24. Bb5 Kb8 25. Bxe8 1-0
2022.08.30 Titled Tue 30th Aug Early
1195073 Molina, Rob (2390) Koellner, Ruben Gideon (2401) 1/2-1/2
1. d4 d6 2. e3 e5 3. Nf3 e4 4. Nfd2 f5 5. c4 Nf6 6. Nc3 c5 7. Nb3 Nc6 8. d5 Ne5 9. f4 exf3 10. gxf3 Nh5 11. f4 Qh4+ 12. Kd2 Ng4 13. Be2 Nhf6 14. Qe1 Qxe1+ 15. Kxe1 Ne4 16. Bxg4 Nxc3 17. Bf3 Ne4 18. Nd2 Nxd2 19. Bxd2 Be7 20. Bc3 Kf7 21. Rg1 Rg8 22. Kd2 Bf6 23. a3 Bd7 24. b4 b6 25. bxc5 bxc5 26. Rab1 Bxc3+ 27. Kxc3 Rab8 28. Be2 Rge8 29. Kd2 g6 30. h4 Kf6 31. h5 gxh5 32. Bxh5 Rh8 33. Be2 Rb6 34. Rxb6 axb6 35. Rb1 Rb8 36. Rh1 Kg7 37. Rb1 Kf6 38. Bd3 h5 39. Rg1 h4 40. Ke2 Ra8 41. Rb1 Rxa3 42. Rxb6 Ke7 43. Rb7 Kd8 44. Rb8+ Ke7 45. Rh8 Ra2+ 46. Kf3 Rh2 47. Rh7+ Kd8 48. Bf1 Be8 49. Bg2 h3 50. Rxh3 Rxh3+ 51. Bxh3 Bd7 52. Kg3 Ke7 53. Kh4 Kf6 54. e4 Ba4 55. exf5 Bb3 56. Bf1 Kxf5 57. Kg3 Bc2 58. Kf3 Be4+ 59. Ke3 Bb1 60. Be2 Kf6 61. Bd3 Ba2 62. Ke4 Bb3 63. f5 Ba2 64. Kf4 Bb3 65. Be2 Ba2 66. Bd3 Bb3 67. Ke3 Ba2 68. Kd2 Bb3 69. Kc3 Bd1 70. Be4 Bg4 71. Kd3 Bxf5 72. Ke3 Bxe4 73. Kxe4 Kg5 74. Ke3 Kg4 75. Ke4 Kg5 76. Ke3 Kg4 77. Ke4 Kg5 1/2-1/2
2022.08.30 Titled Tue 30th Aug Early
1195217 Paravyan, D (2592) Koellner, Ruben Gideon (2401) 1-0
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. h3 Be7 6. g4 h6 7. Be3 c6 8. a4 Qc7 9. Qd2 Nf8 10. O-O-O g5 11. Bc4 Ng6 12. Kb1 a6 13. dxe5 dxe5 14. a5 Qxa5 15. Nd5 Qxd2 16. Nc7+ Kd8 17. Nxa8 Qxd1+ 18. Rxd1+ Ke8 19. Nb6 Be6 20. Bxe6 fxe6 21. Nc4 Nxe4 22. Nfxe5 Nxe5 23. Nxe5 Rf8 24. f3 Nf6 25. c4 Bb4 26. Kc2 Rg8 27. f4 Ne4 28. Rd7 Bd6 29. Rxb7 gxf4 30. Bxf4 Rf8 31. Ng6 Rxf4 32. Nxf4 Bxf4 33. Rb6 Kd7 34. Rxa6 c5 35. h4 Nd6 36. Kd3 e5 37. b3 e4+ 38. Ke2 Be5 39. Ra7+ Ke6 40. Rh7 Nf7 41. Ke3 Kf6 42. Kxe4 Bd4 43. b4 Bf2 44. b5 Bxh4 45. b6 Ng5+ 46. Kf4 Nxh7 47. b7 1-0
2022.08.30 Titled Tue 30th Aug Early
1195276 Koellner, Ruben Gideon (2401) Delorme, Al (2295) 1-0
1. d4 Nf6 2. Bg5 e6 3. Nd2 d5 4. e3 Be7 5. Bd3 O-O 6. f4 c5 7. c3 Nc6 8. Ngf3 a6 9. Ne5 Nd7 10. Bxe7 Qxe7 11. O-O f5 12. Nxd7 Bxd7 13. Nf3 Be8 14. Ne5 Nxe5 15. fxe5 c4 16. Bc2 g5 17. g4 Bg6 18. gxf5 Bxf5 19. Bxf5 Rxf5 20. Rxf5 exf5 21. Qf3 Qe6 22. Rf1 Rf8 23. Qh5 Kh8 24. Kh1 Qg6 25. Qf3 f4 26. Qxd5 Qc2 27. e6 Qd3 28. Qe5+ Kg8 29. Qxg5+ Kh8 30. Qe5+ Kg8 31. Rg1+ 1-0
2022.08.30 Titled Tue 30th Aug Early
1195506 Koellner, Ruben Gideon (2401) Miron, L (2498) 0-1
1. d4 d5 2. Nf3 e6 3. Nbd2 c5 4. e3 Nf6 5. c3 Nbd7 6. Bd3 b6 7. Ne5 Bb7 8. f4 Bd6 9. Qf3 O-O 10. g4 Bxe5 11. fxe5 Ne4 12. Nxe4 dxe4 13. Bxe4 Bxe4 14. Qxe4 Qh4+ 15. Ke2 f5 16. exf6 Nxf6 17. Qxe6+ Kh8 18. Bd2 Rae8 19. Qc6 Ne4 20. Raf1 Qxg4+ 21. Kd3 c4+ 22. Kc2 h6 23. Rhg1 Qh4 24. Rxf8+ Rxf8 25. Qxc4 Nxd2 26. Kxd2 Qxh2+ 27. Kd3 Qxg1 28. Qc7 Qg6+ 29. Kc4 Qf7+ 30. Qxf7 Rxf7 31. e4 h5 32. e5 Kg8 33. e6 Rf2 34. d5 Kf8 35. Kb5 Ke7 36. Kc6 Rd2 37. c4 h4 38. b4 h3 39. c5 bxc5 40. bxc5 h2 41. Kc7 Rxd5 0-1
2022.08.30 Titled Tue 30th Aug Early
1195696 Martin, Le (2151) Koellner, Ruben Gideon (2401) 1/2-1/2
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. Qe2 c6 7. a4 Qc7 8. O-O h6 9. Be3 Nf8 10. dxe5 dxe5 11. Rad1 Ng6 12. h3 Nh5 13. Nh2 Nhf4 14. Bxf4 Nxf4 15. Qf3 Be6 16. Bxe6 Nxe6 17. Rd2 O-O 18. Rfd1 Rad8 19. Ng4 Rxd2 20. Rxd2 h5 21. Ne3 g6 22. Qd1 Rd8 23. Rxd8+ Qxd8 24. Qxd8+ Bxd8 25. b3 Nd4 26. Kf1 Bg5 27. Ncd1 Bxe3 28. Nxe3 f6 29. Ke1 Kf7 30. Kd2 Ke7 31. Kd3 Kd6 32. Nc4+ Kc5 33. b4+ Kxb4 34. c3+ Kxa4 35. cxd4 exd4 36. Kxd4 b5 37. Nd2 Kb4 38. f4 c5+ 39. Kd3 c4+ 40. Kc2 Kc5 41. g4 hxg4 42. hxg4 Kd4 43. e5 fxe5 44. Nf3+ Ke4 45. fxe5 Kd5 46. e6 Kxe6 47. Nd4+ Ke5 48. Nxb5 a6 49. Nc7 Kf4 50. Nxa6 Kxg4 51. Nc5 Kf5 52. Kc3 g5 53. Kxc4 g4 54. Kd4 Kf4 55. Ne4 Kf3 56. Ke5 Ke3 57. Kf5 Kf3 58. Ke5 Ke3 59. Kf5 Kf3 60. Ke5 1/2-1/2
2022.08.30 Titled Tue 30th Aug Early
1195750 Koellner, Ruben Gideon (2401) Rios Escobar, A (2276) 1-0
1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 a5 6. b5 c5 7. bxc6 Nxc6 8. a4 Bf5 9. c3 O-O 10. Ba3 Re8 11. Bb5 Ne4 12. Nxe4 Bxe4 13. O-O e6 14. Nd2 g5 15. Nxe4 dxe4 16. Rb1 Qc7 17. Qg4 h6 18. Qxe4 Rec8 19. Bd3 Nb4 20. Qh7+ Kf8 21. cxb4 Qe7 22. Rb3 Rc6 23. bxa5 Rd6 24. Rxb7 1-0
2022.08.30 Titled Tue 30th Aug Early
1195927 Carrasco Miranda, A (2285) Koellner, Ruben Gideon (2401) 0-1
1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. g3 Ne4 6. Bg2 Nxc3 7. bxc3 Be4 8. O-O Bg7 9. a4 O-O 10. a5 c5 11. Be3 Nc6 12. a6 b6 13. Bh3 Bxf3 14. exf3 Na5 15. Qa4 Qc7 16. dxc5 dxc5 17. Rac1 Rad8 18. Bf4 e5 19. Bg5 Rd3 20. Rfd1 Qd6 21. Rxd3 Qxd3 22. Be7 Ra8 23. Rd1 Qxc4 24. Qd7 Qxa6 25. Qd8+ Rxd8 26. Rxd8+ Bf8 27. Bxf8 Nc6 28. Ra8 Qb7 29. Re8 f5 30. Bh6+ Kf7 31. Rh8 Ke6 32. Bf1 b5 33. g4 c4 34. gxf5+ gxf5 35. Rg8 Qf7 36. Rg7 Qf6 37. Rxh7 Qg6+ 0-1
2022.08.30 Titled Tue 30th Aug Early
1196082 Dev, Shah (2297) Koellner, Ruben Gideon (2401) 1-0
1. d4 d6 2. c4 e5 3. Nf3 e4 4. Nfd2 f5 5. e3 Nf6 6. Nc3 c5 7. b3 Nc6 8. d5 Ne5 9. Bb2 g6 10. Be2 Bg7 11. Qc2 O-O 12. O-O-O a6 13. f4 Neg4 14. Bxg4 Nxg4 15. Rde1 Nf2 16. h4 h5 17. g3 b5 18. Rhf1 Nd3+ 19. Kb1 Nxb2 20. Kxb2 b4 21. Nb1 bxc3+ 22. Nxc3 Qf6 23. a4 Bd7 24. Rc1 Rfb8 25. Ka2 Rb4 26. Ne2 Rab8 27. Rb1 a5 28. Ka3 R8b7 29. Rfd1 Kf7 30. Rdc1 Qd8 31. Nc3 Qb8 32. Nb5 Bxb5 33. cxb5 Rc7 34. Qe2 c4 35. bxc4 Rcxc4 36. Qxc4 Rxc4 37. Rxc4 Bf6 38. b6 Bd8 39. b7 Bc7 40. Rxc7+ Qxc7 41. b8=Q Qc5+ 42. Ka2 Qc4+ 43. Qb3 Qe2+ 44. Rb2 1-0
2022.08.23 Titled Tue 23rd Aug Early
1200513 Koellner, Ruben Gideon (2401) Lenderman, A (2535) 0-1
1. d4 e6 2. Nf3 c5 3. e3 b6 4. Nbd2 Bb7 5. c3 Nf6 6. Bd3 d5 7. Ne5 Bd6 8. f4 O-O 9. Qf3 Ba6 10. Bc2 b5 11. a3 b4 12. dxc5 bxc3 13. cxd6 cxd2+ 14. Bxd2 Nbd7 15. Nc6 Qb6 16. Rc1 Kh8 17. Ne5 Qxb2 18. Nxd7 Nxd7 19. Qh3 f5 20. Ba4 Rac8 21. Rxc8 Rxc8 22. Bxd7 Rc1+ 23. Kf2 Qxd2+ 24. Kg3 Qxe3+ 25. Kh4 Qxf4+ 26. Kh5 Qh6# 0-1
2022.08.23 Titled Tue 23rd Aug Early
1200719 Yirik, V (1957) Koellner, Ruben Gideon (2401) 1/2-1/2
1. e4 d6 2. Nc3 Nf6 3. d4 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. O-O-O+ Nd7 8. f4 exf4 9. e5 h6 10. Bxf4 Ng4 11. Nh3 g5 12. Bg3 Bg7 13. Be2 Nxe5 14. Ne4 Ke7 15. Rhe1 f5 16. Nexg5 hxg5 17. Nxg5 Rae8 18. Nxe6 Kxe6 19. Bc4+ Kf6 20. Bb3 Bh6+ 21. Kb1 Bg5 22. a3 Bh4 23. Bxh4+ Rxh4 24. Rxd7 Nxd7 25. Rxe8 Rxh2 26. Re6+ Kg5 27. Re7 Rh1+ 28. Ka2 Rd1 29. Be6 Nc5 30. Bc4 c6 31. b4 Ne4 32. Rxb7 Rd2 33. Kb3 Kf4 34. Rxa7 Rxg2 35. Rf7 Nd2+ 36. Kc3 Nxc4 37. Kxc4 Rxc2+ 38. Kb3 Rc1 39. a4 Ke4 40. a5 f4 41. a6 Ra1 42. a7 f3 43. Kc4 Rc1+ 44. Kb3 Ra1 45. Kb2 Ra6 46. Kc3 Ke3 47. Kc4 f2 48. Kc5 Rxa7 49. Rxf2 Kxf2 50. Kxc6 Ke3 51. b5 Kd4 52. b6 Ra1 53. b7 Rc1+ 54. Kd7 Rb1 55. Kc7 Rc1+ 56. Kd7 Rb1 57. Kc7 Rc1+ 58. Kd7 1/2-1/2
2022.08.23 Titled Tue 23rd Aug Early
1200857 Koellner, Ruben Gideon (2401) Hoffmann, As (2185) 0-1
1. d4 Nf6 2. Bg5 e6 3. Nd2 Be7 4. e4 d6 5. Bd3 b6 6. c3 Bb7 7. Qe2 Nbd7 8. f4 h6 9. Bxf6 Bxf6 10. Ngf3 e5 11. fxe5 dxe5 12. d5 Qe7 13. O-O Bg5 14. b4 a5 15. a3 O-O 16. Bb5 Bxd2 17. Nxd2 Rac8 18. Bxd7 Qxd7 19. b5 Rce8 20. Rf5 Bc8 21. Nc4 Qe7 22. Rf2 Qc5 23. a4 f5 24. Ne3 fxe4 25. Raf1 Qxc3 26. Rxf8+ Rxf8 27. Rxf8+ Kxf8 28. Kf2 Qd3 29. Qc2 Qxc2+ 30. Nxc2 Bf5 31. Ne3 Bg6 32. Nc4 Bf7 0-1
2022.08.23 Titled Tue 23rd Aug Early
1201032 Pinero, C (2246) Koellner, Ruben Gideon (2401) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. O-O-O+ Nd7 8. Bxf6+ gxf6 9. Bb5 Bd6 10. Bxd7 Kxd7 11. Nd5 f5 12. exf5 Bxf5 13. Nf3 h6 14. Rhe1 Ke6 15. Nd4+ Kxd5 16. Nxf5+ Ke6 17. Nd4+ Kf6 18. Nb5 Rad8 19. Nxd6 cxd6 20. Rd5 Ke6 21. Red1 Rhg8 22. g3 Rg4 23. Ra5 a6 24. Rad5 h5 25. b3 b5 26. h3 Re4 27. f3 Re2 28. R5d2 Rxd2 29. Rxd2 f5 30. Rg2 Rg8 31. Kd2 d5 32. Ke2 d4 33. g4 hxg4 34. hxg4 fxg4 35. fxg4 e4 36. Kd2 Rg5 37. c3 dxc3+ 38. Kxc3 Ke5 39. Kb4 Kf4 40. Ka5 e3 41. Kxa6 b4 42. Kb6 Kf3 43. Rb2 e2 44. Rb1 Kf2 45. a4 bxa3 46. Ka6 e1=Q 47. Rxe1 Kxe1 48. Kb6 a2 49. b4 a1=Q 50. b5 Qf6+ 51. Kc7 Rg7+ 52. Kc8 Qf8# 0-1
2022.08.23 Titled Tue 23rd Aug Early
1201191 Schut, Ha (2101) Koellner, Ruben Gideon (2401) 0-1
1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Be2 Be7 6. Be3 c6 7. h3 Qc7 8. Qd2 h6 9. a4 a5 10. O-O Nf8 11. Nh4 g6 12. Bxh6 exd4 13. Nd1 Nxe4 14. Qf4 Ne6 15. Qxe4 d5 16. Qd3 Rxh6 17. Nf3 Nf4 18. Qd2 Bb4 19. c3 dxc3 20. bxc3 Bc5 21. Nd4 Bxh3 22. gxh3 Nxh3+ 23. Kg2 Nf4+ 24. Kg1 Qe5 25. Re1 Qg5+ 26. Bg4+ Kf8 27. f3 Nh3+ 28. Kf1 Qxd2 29. Re2 Qf4 30. Ne3 Bxd4 31. cxd4 Re8 32. Rae1 Rxe3 33. Rxe3 Qh2 34. Bxh3 Rxh3 35. R1e2 Qh1+ 36. Kf2 Rh2+ 37. Kg3 Qg1+ 38. Kf4 Rh4+ 39. Ke5 Qg3+ 40. Kf6 Qf4# 0-1
2022.08.23 Titled Tue 23rd Aug Early
1201378 Koellner, Ruben Gideon (2401) Vlachos, Anatole (2430) 1-0
1. d4 Nc6 2. Nf3 d6 3. Nbd2 e5 4. dxe5 dxe5 5. e4 Be6 6. c3 Nf6 7. Bb5 Bd6 8. O-O O-O 9. Qe2 Ne7 10. Bc4 Ng6 11. g3 Bg4 12. Re1 a5 13. a4 Bc5 14. Nf1 Nh5 15. Kg2 Qc8 16. h4 Kh8 17. N1h2 f5 18. exf5 Qxf5 19. Bd3 Qd7 20. Bxg6 hxg6 21. Nxg4 Qxg4 22. Nxe5 Qf5 23. f4 Rae8 24. Qe4 Rxe5 25. Qxe5 Qd3 26. Be3 Qc2+ 27. Kh3 Bd6 28. Qg5 Kh7 29. Rac1 Qxb2 30. Qb5 Qa2 31. c4 Rf5 32. Qd7 Qb3 33. Kg2 Qd3 34. Bf2 Qb3 35. Qe6 Rf6 36. Qe4 Qa2 37. Qc2 Qa3 38. Re3 Qb4 39. Rb3 Qxa4 40. Rb2 Qc6+ 41. Kh2 Bc5 42. Rd1 Bxf2 43. Qxf2 Rf5 44. Re2 Qf6 45. Qg2 Qb6 46. Rf1 a4 47. Ref2 a3 48. g4 Rxf4 49. Rxf4 Nxf4 50. Rxf4 Qd6 51. Qg3 a2 52. Rf2 Qa6 53. Rxa2 Qxa2+ 54. Kh3 1-0
2022.08.23 Titled Tue 23rd Aug Early
1201510 Malek, Jan (2296) Koellner, Ruben Gideon (2401) 1-0
1. Nf3 d5 2. b3 Nf6 3. Bb2 Nbd7 4. c4 e6 5. e3 Be7 6. Qc2 O-O 7. g4 Nxg4 8. Rg1 Ngf6 9. Bd3 g6 10. Nc3 c6 11. O-O-O Nh5 12. cxd5 exd5 13. Ne2 Bf6 14. Ned4 Ng7 15. Kb1 Qe7 16. h4 Nc5 17. Ba3 b6 18. Nxc6 Qe8 19. Bb5 Bf5 20. d3 a6 21. Bxc5 bxc5 22. Ba4 Bd7 23. Qxc5 Rc8 24. Rc1 Qe6 25. Nfd4 Bxd4 26. exd4 Nf5 27. Rge1 Qf6 28. Ne7+ Nxe7 29. Qxe7 Rxc1+ 30. Kxc1 Qxe7 31. Rxe7 Bxa4 32. bxa4 Rc8+ 33. Kd2 Rb8 34. Kc3 Rc8+ 35. Kb4 Rc2 36. Re5 Rxf2 37. Rxd5 f5 38. Rd7 f4 39. d5 f3 40. d6 Rb2+ 41. Kc3 f2 42. Rd8+ Kf7 43. d7 f1=Q 44. Rf8+ Kxf8 45. d8=Q+ Kg7 46. Kxb2 Qf6+ 47. Qxf6+ Kxf6 48. Kc3 h6 49. Kd4 g5 50. hxg5+ Kxg5 51. Kc5 h5 52. d4 h4 53. d5 Kf6 54. d6 Ke6 55. Kc6 h3 56. d7 h2 57. d8=Q h1=Q+ 58. Kb6 Qb1+ 59. Kxa6 Qxa2 60. Qg8+ 1-0
2022.08.23 Titled Tue 23rd Aug Early
1201625 Koellner, Ruben Gideon (2401) Harsh, Suresh (2280) 1-0
1. d4 g6 2. Nf3 Bg7 3. Nbd2 d6 4. e4 e5 5. dxe5 dxe5 6. Bc4 Nd7 7. O-O Nb6 8. Bb3 Bg4 9. h3 Bxf3 10. Qxf3 Nf6 11. Rd1 O-O 12. Nf1 Qe7 13. Be3 Rfd8 14. Nh2 Qb4 15. Bg5 Rxd1+ 16. Rxd1 Qxe4 17. Qc3 c6 18. Qc5 Nfd5 19. c4 Nf4 20. Bxf4 exf4 21. Nf3 Bxb2 22. Qd6 Qe6 23. c5 Qxd6 24. Rxd6 Nd5 25. Rd7 b6 26. Ng5 Rf8 27. Bxd5 cxd5 28. c6 Bf6 29. Nxf7 Rc8 30. c7 Kf8 31. Nd6 Rxc7 32. Rxc7 d4 33. Rf7+ Kg8 34. Rxf6 d3 35. Ne4 Kg7 36. Rd6 Kg8 37. Rxd3 g5 38. Rd7 h6 39. Nf6+ Kf8 40. Rxa7 b5 41. a3 f3 42. gxf3 g4 43. fxg4 h5 44. Nxh5 b4 45. axb4 Ke8 46. b5 Kf8 47. b6 Ke8 48. Rc7 Kd8 49. g5 Ke8 50. b7 Kd8 51. b8=Q# 1-0
2022.08.23 Titled Tue 23rd Aug Early
1201700 Koellner, Ruben Gideon (2401) Vlassov, N (2283) 0-1
1. d4 Nf6 2. Bg5 e6 3. Nd2 h6 4. Bh4 c5 5. e4 cxd4 6. e5 g5 7. Bg3 Nd5 8. h4 Bg7 9. hxg5 hxg5 10. Rxh8+ Bxh8 11. Qh5 Bg7 12. Ngf3 Nc6 13. Nc4 Qe7 14. Nd6+ Kd8 15. Bc4 Nf4 16. Qh7 Bxe5 17. Nxf7+ Kc7 18. N3xe5 Nxe5 19. Nxg5 Qb4+ 20. Kd1 Nxc4 21. Bxf4+ e5 22. Bc1 Nxb2+ 23. Bxb2 Qxb2 24. Rc1 a5 25. Qe7 Ra6 26. Qxe5+ d6 27. Qe7+ Kb8 28. Ne4 d3 29. cxd3 Rc6 30. Rxc6 bxc6 31. Qxd6+ Ka7 32. Qc5+ Kb8 33. Qe5+ Qxe5 0-1
2022.08.23 Titled Tue 23rd Aug Early
1201850 Dudzinski, Pa (2198) Koellner, Ruben Gideon (2401) 1-0
1. e4 d6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. Nge2 e6 7. Rb1 Nge7 8. a3 O-O 9. b4 Nd4 10. d3 Nec6 11. Nxd4 Nxd4 12. Ne2 a5 13. Nxd4 Bxd4 14. b5 Rb8 15. b6 Bd7 16. O-O Bc6 17. h4 Ra8 18. Bh6 Re8 19. Bg5 Bf6 20. f4 Kg7 21. Qe2 h6 22. Bxf6+ Qxf6 23. e5 Qd8 24. Bxc6 bxc6 25. h5 d5 26. hxg6 fxg6 27. cxd5 cxd5 28. Rb5 Qe7 29. Rc1 Rac8 30. b7 Rb8 31. Qb2 Red8 32. Rcxc5 Rd7 33. Rxa5 Rdxb7 34. Rcb5 Rxb5 35. Rxb5 Qa7+ 36. Kh2 Rxb5 37. Qxb5 Qf2+ 38. Kh3 Qf1+ 39. Kh2 Qf2+ 40. Kh3 Qf1+ 41. Kh2 Qe2+ 42. Kh1 Qe1+ 43. Kg2 Qe2+ 44. Kg1 Qe1+ 45. Kg2 Qe2+ 46. Kg1 Qd1+ 47. Kg2 Qd2+ 48. Kh3 Qe2 49. Qd7+ 1-0