[Event "ch-NED Final 2021"] [Site "Rotterdam NED"] [Date "2021.12.01"] [Round "4.2"] [White "Lai, Hing Ting"] [Black "Swinkels, R"] [Result "1/2-1/2"] [WhiteTitle "IM"] [BlackTitle "GM"] [WhiteElo "2450"] [BlackElo "2523"] [ECO "E04"] [Opening "Catalan"] [Variation "open, 5.Nf3"] [EventDate "2021.11.27"] [WhiteFideId "1038257"] [BlackFideId "1010824"] [EventType "tourn"] 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 a6 6. O-O Nc6 7. e3 Rb8 8. Qe2 b5 9. b3 cxb3 10. axb3 Be7 11. Rd1 O-O 12. Bb2 Rb6 13. Nc3 Bb7 14. e4 Nb4 15. h4 Re8 16. Rac1 Qb8 17. Ne5 Rd6 18. Nxf7 Kxf7 19. e5 Bxg2 20. Kxg2 Rdd8 21. exf6 Bxf6 22. Ne4 Nd5 23. h5 h6 24. Qg4 Qb6 25. Rc5 Kg8 26. Rdc1 Kh8 27. Kg1 Qb7 28. Rc6 a5 29. Qe2 a4 30. Nxf6 Nxf6 31. d5 Nxd5 32. Be5 Rd7 33. Qg4 Rf7 34. Qg6 Kg8 35. bxa4 bxa4 36. Rxe6 Rxe6 37. Qxe6 Qb3 38. Qe8+ Rf8 39. Qe6+ Rf7 40. Qe8+ Rf8 41. Qg6 Nf6 42. Rxc7 Qd1+ 43. Kg2 Qd5+ 44. f3 Rf7 45. Rc8+ Rf8 46. Rc7 Rf7 47. Rc8+ 1/2-1/2

[Event "ch-NED Final 2021"] [Site "Rotterdam NED"] [Date "2021.12.02"] [Round "5.1"] [White "Lai, Hing Ting"] [Black "Warmerdam, Max"] [Result "1/2-1/2"] [WhiteTitle "IM"] [BlackTitle "GM"] [WhiteElo "2450"] [BlackElo "2608"] [ECO "D02"] [Opening "Queen's bishop game"] [EventDate "2021.11.27"] [WhiteFideId "1038257"] [BlackFideId "1048104"] [EventType "tourn"] 1. d4 d5 2. Nf3 Nf6 3. Bf4 Bf5 4. e3 e6 5. Bd3 Bd6 6. Bg3 O-O 7. O-O Bxg3 8. hxg3 Nbd7 9. c4 dxc4 10. Bxc4 c5 11. Nc3 Rc8 12. Be2 Qb6 13. Na4 Qa5 14. Nxc5 Nxc5 15. dxc5 Qxc5 16. Rc1 Qa5 17. a3 Be4 18. Qd4 Rfd8 19. Rxc8 Rxc8 20. Rd1 h6 21. Ne5 Bd5 22. f3 Bb3 23. Rd2 Qd5 24. Qxd5 Nxd5 25. Kf2 f6 26. Ng6 Kf7 27. Nf4 Ke7 28. Nxd5+ Bxd5 29. e4 Bb3 30. Rd3 Ba4 31. Rd4 Bd7 32. Rd2 e5 33. Ke3 Be6 34. f4 g6 35. Bd3 Rc1 36. fxe5 fxe5 37. Rc2 Rxc2 38. Bxc2 a5 39. b4 axb4 40. axb4 Kd6 1/2-1/2

[Event "ch-NED Final 2021"] [Site "Rotterdam NED"] [Date "2021.12.02"] [Round "5.2"] [White "Swinkels, R"] [Black "Pruijssers, R"] [Result "0-1"] [WhiteTitle "GM"] [BlackTitle "GM"] [WhiteElo "2523"] [BlackElo "2570"] [ECO "C43"] [Opening "Petrov"] [Variation "modern attack, Symmetrical variation"] [EventDate "2021.11.27"] [WhiteFideId "1010824"] [BlackFideId "1013068"] [EventType "tourn"] 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 Nc6 5. Nxe5 Nxe5 6. dxe5 Nc5 7. Bc4 d6 8. Be3 Be6 9. Bxe6 Nxe6 10. exd6 Bxd6 11. Qf3 Qh4 12. Nd2 O-O 13. O-O-O Qa4 14. Kb1 Qb5 15. Nb3 b6 16. Rd5 Qc4 17. Rhd1 Rad8 18. Nd2 Qa6 19. Ne4 Be7 20. Rd7 Rfe8 21. h4 Rxd7 22. Rxd7 Qc8 23. Rd1 Bxh4 24. Rh1 Be7 25. Qh5 Nf8 26. Bd4 Qe6 27. f3 Rd8 28. Bc3 Rd5 29. Qh2 Qd7 30. b3 f5 31. Nf2 Qc6 32. Rd1 Qxc3 33. Rxd5 Bf6 34. Kc1 Qe3+ 35. Kd1 Qxf2 36. Qxc7 Qf1+ 37. Kd2 Qxg2+ 0-1

[Event "ch-NED Final 2021"] [Site "Rotterdam NED"] [Date "2021.12.03"] [Round "6.1"] [White "Warmerdam, Max"] [Black "Swinkels, R"] [Result "1-0"] [WhiteTitle "GM"] [BlackTitle "GM"] [WhiteElo "2608"] [BlackElo "2523"] [ECO "A90"] [Opening "Dutch defence"] [EventDate "2021.11.27"] [WhiteFideId "1048104"] [BlackFideId "1010824"] [EventType "tourn"] 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 d5 5. Nf3 Bd6 6. O-O O-O 7. Nc3 c6 8. Qc2 Ne4 9. Rb1 Nd7 10. b4 b6 11. b5 Qc7 12. Bb2 Bb7 13. Rfc1 Nxc3 14. Qxc3 cxb5 15. c5 b4 16. Qxb4 Be7 17. Qd2 Rfc8 18. Qe3 Qc6 19. cxb6 Qxb6 20. Bc3 Qa6 21. Rxb7 Qxb7 22. Qxe6+ Kf8 23. Ne5 Nxe5 24. Bxd5 1-0

[Event "ch-NED Final 2021"] [Site "Rotterdam NED"] [Date "2021.12.03"] [Round "6.2"] [White "Pruijssers, R"] [Black "Lai, Hing Ting"] [Result "1-0"] [WhiteTitle "GM"] [BlackTitle "IM"] [WhiteElo "2570"] [BlackElo "2450"] [ECO "B10"] [Opening "Caro-Kann"] [Variation "two knights variation"] [EventDate "2021.11.27"] [WhiteFideId "1013068"] [BlackFideId "1038257"] [EventType "tourn"] 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nf6 5. Qe2 Nxe4 6. Qxe4 Nd7 7. Bc4 Nf6 8. Ne5 e6 9. Qe2 b5 10. Bd3 Qc7 11. a4 Bd6 12. Nxc6 b4 13. Nd4 a6 14. Nf5 Be5 15. Nxg7+ Kf8 16. Nh5 Nxh5 17. Qxh5 Bb7 18. O-O Rg8 19. f3 Rd8 20. Be4 Bxe4 21. fxe4 Rg7 22. c3 bxc3 23. bxc3 Kg8 24. Kh1 Qc4 25. Re1 Bc7 26. Qe2 Qc6 27. Ba3 h5 28. Be7 Rd7 29. Bf6 Rg6 30. Rf1 e5 31. Qxh5 1-0

[Event "ch-NED Final 2021"] [Site "Rotterdam NED"] [Date "2021.11.27"] [Round "1.1"] [White "Pruijssers, R"] [Black "Warmerdam, Max"] [Result "1/2-1/2"] [WhiteTitle "GM"] [BlackTitle "GM"] [WhiteElo "2570"] [BlackElo "2608"] [ECO "B56"] [Opening "Sicilian"] [EventDate "2021.11.27"] [WhiteFideId "1013068"] [BlackFideId "1048104"] 1. e4 c5 2. Nc3 Nc6 3. Nge2 d6 4. d4 cxd4 5. Nxd4 Nf6 6. f3 e5 7. Nb3 Be7 8. Be3 Be6 9. Nd5 O-O 10. c3 Nb8 11. Nxf6+ Bxf6 12. Be2 Bg5 13. Qd2 Bxe3 14. Qxe3 a5 15. O-O Qc7 16. Nd2 Rc8 17. Rfc1 Nd7 18. Bb5 a4 19. b4 axb3 20. axb3 Rxa1 21. Rxa1 Qxc3 22. Qxc3 Rxc3 23. Bxd7 Bxd7 24. Ra8+ Rc8 25. Rxc8+ Bxc8 26. Nc4 Be6 27. Nxd6 Bxb3 28. Nxb7 h5 29. h4 f6 30. Kf2 Kf7 31. Ke3 Ke7 32. Kd3 Bf7 33. Kc3 Kd7 34. Kb4 Kc7 35. Na5 Kb6 36. Nc4+ Bxc4 37. Kxc4 Kc6 38. Kb4 Kb6 39. Kc4 Kc6 40. Kb4 Kb6 41. Kc4 1/2-1/2

[Event "ch-NED Final 2021"] [Site "Rotterdam NED"] [Date "2021.11.27"] [Round "1.2"] [White "Swinkels, R"] [Black "Lai, Hing Ting"] [Result "1/2-1/2"] [WhiteTitle "GM"] [BlackTitle "IM"] [WhiteElo "2523"] [BlackElo "2450"] [ECO "B12"] [Opening "Caro-Kann"] [Variation "advance variation"] [EventDate "2021.11.27"] [WhiteFideId "1010824"] [BlackFideId "1038257"] 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nd2 e6 5. Nb3 Ne7 6. Nf3 Nd7 7. Be2 h6 8. O-O g5 9. a4 a5 10. Be3 Bg7 11. c3 Bg6 12. h3 O-O 13. Re1 b6 14. c4 dxc4 15. Bxc4 Nd5 16. Bd2 Qe7 17. Rc1 Rfd8 18. Qe2 Nb4 19. Be3 Rac8 20. Red1 Nf8 21. Nh2 Nh7 22. Ng4 Na2 23. Ra1 Nb4 24. Rac1 Na2 25. Ra1 Nb4 26. Rdc1 Rd7 27. Kh1 Rdc7 28. f3 Qd8 29. Bf2 b5 30. axb5 cxb5 31. Bxb5 Rc2 32. Qf1 Rxb2 33. Rxc8 Qxc8 34. Nc5 Nd5 35. Bd3 Bxd3 36. Nxd3 Rd2 37. Nc5 Nf8 38. Qe1 Rc2 39. Ne3 Nxe3 40. Bxe3 Ng6 41. Qxa5 Re2 42. Re1 Rb2 43. Qc3 Qb8 44. Rc1 Qb5 45. Qd3 Qxd3 46. Nxd3 Re2 47. Re1 Rxe1+ 48. Nxe1 f6 49. exf6 Bxf6 50. Kg1 Ne7 51. Nc2 e5 52. Kf2 Kf7 53. Ke2 Nd5 54. Kd3 Ke6 55. Bd2 Ne7 56. Ke4 exd4 57. Nxd4+ Bxd4 58. Kxd4 Nf5+ 59. Ke4 Nd6+ 60. Kd3 Kf5 61. Kd4 h5 62. Kd5 Nf7 63. g4+ hxg4 64. hxg4+ Kg6 65. Ke6 Nh6 66. Bc3 Nf7 67. Bf6 Nh6 68. Bd4 Nf7 69. Bb6 Nh6 70. Ba5 Nf7 71. Ke7 Ne5 1/2-1/2

[Event "ch-NED Final 2021"] [Site "Rotterdam NED"] [Date "2021.11.28"] [Round "2.1"] [White "Swinkels, R"] [Black "Warmerdam, Max"] [Result "0-1"] [WhiteTitle "GM"] [BlackTitle "GM"] [WhiteElo "2523"] [BlackElo "2608"] [ECO "B23"] [Opening "Sicilian"] [Variation "closed"] [EventDate "2021.11.27"] [WhiteFideId "1010824"] [BlackFideId "1048104"] 1. e4 c5 2. Nc3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Qd2 g6 6. b3 Bh6 7. f4 f5 8. Bb2 Nf6 9. O-O-O Rf8 10. Nge2 Qa5 11. h3 Nxe4 12. Qe1 Be6 13. Kb1 O-O-O 14. g4 Rf7 15. Nxe4 fxe4 16. Qxa5 Nxa5 17. g5 Bg7 18. Bxg7 Rxg7 19. c4 Rf7 20. Bg2 Bf5 21. Kb2 Nc6 22. Kc3 e6 23. Nd4 d5 24. c5 h6 25. gxh6 Rh8 26. b4 Rxh6 27. b5 Nxd4 28. Kxd4 Rh4 29. Ke5 Rh5 30. Kd4 g5 31. fxg5 Rxg5 32. Bf1 e5+ 33. Kxe5 Bg4+ 34. Kd6 Rd7# 0-1

[Event "ch-NED Final 2021"] [Site "Rotterdam NED"] [Date "2021.11.28"] [Round "2.2"] [White "Lai, Hing Ting"] [Black "Pruijssers, R"] [Result "1-0"] [WhiteTitle "IM"] [BlackTitle "GM"] [WhiteElo "2450"] [BlackElo "2570"] [ECO "D02"] [Opening "Queen's bishop game"] [EventDate "2021.11.27"] [WhiteFideId "1038257"] [BlackFideId "1013068"] 1. d4 Nf6 2. Nf3 d5 3. Bf4 g6 4. e3 Bg7 5. Nbd2 O-O 6. Bd3 b6 7. O-O Bb7 8. c3 c5 9. Qe2 Nc6 10. h3 Nd7 11. Rfd1 Re8 12. Rac1 e6 13. a3 Qe7 14. Ba6 Bxa6 15. Qxa6 c4 16. e4 Nf6 17. e5 Nh5 18. Be3 Qd7 19. a4 Nb8 20. Qb5 Qc8 21. g4 a6 22. Qxb6 Nc6 23. Nxc4 dxc4 24. Qc5 Bf8 25. Qxc4 Ng7 26. Qd3 a5 27. Qe4 Qa6 28. Qf4 Be7 29. b3 Rf8 30. Qe4 Rab8 31. Rb1 Rfc8 32. c4 Qb7 33. Rd2 Rd8 34. d5 Nb4 35. Rbd1 Rd7 36. Bg5 Rbd8 37. Bxe7 Rxe7 38. Ng5 exd5 39. cxd5 Ne8 40. e6 f6 41. Nf7 Rxf7 42. exf7+ Qxf7 43. d6 Ng7 44. Re1 Qxb3 45. Qe7 Nc6 46. Qc7 Qb4 47. Re7 Ne8 48. Qxc6 Qxd2 49. Rxe8+ Rxe8 50. Qxe8+ Kg7 51. Qe7+ Kg8 52. d7 Qc1+ 53. Kg2 Qc6+ 54. f3 Qc2+ 55. Kg3 Qc7+ 56. Kh4 1-0

[Event "ch-NED Final 2021"] [Site "Rotterdam NED"] [Date "2021.11.29"] [Round "3.1"] [White "Warmerdam, Max"] [Black "Lai, Hing Ting"] [Result "1-0"] [WhiteTitle "GM"] [BlackTitle "IM"] [WhiteElo "2608"] [BlackElo "2450"] [ECO "A18"] [Opening "English"] [Variation "Mikenas-Carls, Flohr variation"] [EventDate "2021.11.27"] [WhiteFideId "1048104"] [BlackFideId "1038257"] 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. Nf3 Nc6 8. d4 e5 9. d5 Nb8 10. Bd3 Nd7 11. Bg5 Qd6 12. O-O Be7 13. Bxe7 Qxe7 14. Re1 O-O 15. Bc2 Qf6 16. Ba4 c6 17. Rb1 h6 18. Bc2 Re8 19. Qd3 g6 20. Nd2 Kg7 21. Qe3 Nb6 22. d6 Bf5 23. Bxf5 Qxf5 24. a4 Rad8 25. a5 Nc8 26. c5 b6 27. Nc4 bxc5 28. Qxc5 e4 29. Qd4+ Kg8 30. Red1 Rd7 31. a6 Red8 32. Rb8 Kh7 33. h3 h5 34. Qe5 f6 35. Qxf5 gxf5 36. Na5 Nxd6 37. Rxd8 Rxd8 38. Nxc6 Rd7 39. c4 1-0

[Event "ch-NED Final 2021"] [Site "Rotterdam NED"] [Date "2021.11.29"] [Round "3.2"] [White "Pruijssers, R"] [Black "Swinkels, R"] [Result "1/2-1/2"] [WhiteTitle "GM"] [BlackTitle "GM"] [WhiteElo "2570"] [BlackElo "2523"] [ECO "B67"] [Opening "Sicilian"] [Variation "Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7"] [EventDate "2021.11.27"] [WhiteFideId "1013068"] [BlackFideId "1010824"] 1. e4 c5 2. Nc3 Nc6 3. Nge2 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f3 Nxd4 10. Qxd4 Be7 11. g4 h5 12. gxh5 Nxh5 13. Bxe7 Qxe7 14. Rg1 Bc6 15. Qxd6 Qxd6 16. Rxd6 Nf4 17. Rd2 g6 18. b4 Ke7 19. a4 Rh5 20. Kb2 Rah8 21. Rg4 e5 22. b5 axb5 23. axb5 Be8 24. h3 Bd7 25. Rxf4 exf4 26. Nd5+ Rxd5 27. Rxd5 Bxh3 28. Bxh3 Rxh3 29. Rd3 g5 30. Kc3 Ke6 31. Kd4 f5 32. c4 g4 33. exf5+ Kxf5 34. fxg4+ Kxg4 35. Rxh3 Kxh3 36. c5 f3 37. c6 bxc6 38. bxc6 f2 39. c7 f1=Q 40. c8=Q+ Kg2 1/2-1/2