[Event "43rd Arco Open 2021"] [Site "Arco ITA"] [Date "2021.10.16"] [Round "8.45"] [White "Guizzetti, Marco"] [Black "Hilbenz, G"] [Result "0-1"] [BlackElo "1873"] [ECO "D10"] [Opening "QGD Slav defence"] [EventDate "2021.10.09"] [WhiteFideId "28552610"] [BlackFideId "4686586"] 1. d4 d5 2. c4 c6 3. g3 Nf6 4. Bg2 a6 5. a4 Bf5 6. Qb3 Ra7 7. Nf3 e6 8. Nc3 h6 9. O-O Be7 10. a5 Nbd7 11. Bf4 O-O 12. Ne5 Nxe5 13. Qb6 Qxb6 14. axb6 Raa8 15. Bxe5 Nd7 16. Bc7 Bd8 17. Bd6 Re8 18. c5 Bf6 19. Rfd1 e5 20. e3 exd4 21. exd4 Re6 22. Kf1 Nxb6 23. Ra3 Nc4 24. Nxd5 Nxa3 25. Nc7 Rxd6 26. bxa3 Rxd4 0-1

[Event "43rd Arco Open 2021"] [Site "Arco ITA"] [Date "2021.10.15"] [Round "7.46"] [White "Von Wantoch, M"] [Black "Guizzetti, Marco"] [Result "1/2-1/2"] [WhiteElo "1889"] [ECO "B27"] [Opening "Sicilian"] [Variation "Hungarian variation"] [EventDate "2021.10.09"] [WhiteFideId "24652776"] [BlackFideId "28552610"] 1. e4 c5 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nc6 5. O-O d6 6. c3 Nf6 7. Re1 O-O 8. d3 Rb8 9. a3 b5 10. Be3 b4 11. Nbd2 Ba6 12. d4 Nd7 13. h3 bxc3 14. bxc3 Qa5 15. Qc2 Qb5 16. Bf1 Qa5 17. Nc4 Qc7 18. Rac1 Na5 19. Qa4 Nxc4 20. Bxc4 Bxc4 21. Qxc4 Qc8 22. Bg5 Nb6 23. Qf1 Re8 24. a4 Qc7 25. Bf4 Qc6 26. Qd3 Rbd8 27. Kg2 e5 28. d5 Qxa4 29. Bd2 Qc4 30. Qf1 1/2-1/2

[Event "43rd Arco Open 2021"] [Site "Arco ITA"] [Date "2021.10.13"] [Round "5.51"] [White "Wegelin, R"] [Black "Guizzetti, Marco"] [Result "1-0"] [WhiteElo "1800"] [ECO "A45"] [Opening "Blackmar-Diemer gambit"] [EventDate "2021.10.09"] [WhiteFideId "1305778"] [BlackFideId "28552610"] 1. d4 Nf6 2. f3 d5 3. e4 dxe4 4. Nc3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. Bg5 O-O 8. Qd2 Bg4 9. O-O Nc6 10. Rad1 a6 11. Kh1 b5 12. Bd3 Bxf3 13. Rxf3 Nxd4 14. Rh3 Ne6 15. Bh6 Ng4 16. Bxg7 Nxg7 17. Qf4 Qc8 18. Nd5 Qd8 19. Be2 e6 20. Bxg4 exd5 21. Qh6 f5 22. Bf3 c6 23. Qxh7+ Kf7 24. Qh6 Rh8 25. Qf4 Rxh3 26. gxh3 Qe7 27. Rg1 Re8 28. Qg3 Qe6 29. b3 Nh5 30. Bxh5 gxh5 31. Qg7# 1-0

[Event "43rd Arco Open 2021"] [Site "Arco ITA"] [Date "2021.10.12"] [Round "4.67"] [White "Guizzetti, Marco"] [Black "Schestak, Herbert"] [Result "1-0"] [BlackElo "1714"] [ECO "D06"] [Opening "QGD"] [Variation "Marshall defence"] [EventDate "2021.10.09"] [WhiteFideId "28552610"] [BlackFideId "1635417"] 1. d4 d5 2. c4 Nf6 3. Nf3 Bf5 4. g3 e6 5. Bg2 Nbd7 6. O-O c6 7. b3 Be7 8. Nc3 Ne4 9. Bb2 Ndf6 10. Nh4 Nxc3 11. Bxc3 Ne4 12. Nxf5 exf5 13. Bb2 h5 14. Qd3 h4 15. Bc1 hxg3 16. fxg3 Bd6 17. cxd5 cxd5 18. Qb5+ Qd7 19. Qxd5 Rxh2 20. Bxe4 1-0

[Event "43rd Arco Open 2021"] [Site "Arco ITA"] [Date "2021.10.11"] [Round "3.52"] [White "Bozzao, F"] [Black "Guizzetti, Marco"] [Result "1-0"] [WhiteElo "1842"] [ECO "B15"] [Opening "Caro-Kann defence"] [EventDate "2021.10.09"] [WhiteFideId "821306"] [BlackFideId "28552610"] 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Ng3 e6 6. Nf3 Bd6 7. Bd3 Nbd7 8. Qe2 c5 9. Nf5 Bf8 10. c3 g6 11. Nh6 Qc7 12. Nxf7 Kxf7 13. Ng5+ Ke7 14. Qxe6+ Kd8 15. Nf7# 1-0

[Event "43rd Arco Open 2021"] [Site "Arco ITA"] [Date "2021.10.10"] [Round "2.33"] [White "Guizzetti, Marco"] [Black "Lochte, T"] [Result "0-1"] [BlackElo "2016"] [ECO "E10"] [Opening "Blumenfeld counter-gambit"] [EventDate "2021.10.09"] [WhiteFideId "28552610"] [BlackFideId "4606272"] 1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. d5 b5 5. cxb5 Nxd5 6. g3 Bb7 7. a4 a6 8. bxa6 Nxa6 9. Bg2 Nf6 10. O-O d5 11. Nc3 d4 12. Nb5 Nc7 13. Nxc7+ Qxc7 14. Qc2 Be4 15. Bf4 Qxf4 16. gxf4 Bxc2 17. Nxd4 Be4 18. Nb3 Bxg2 19. Kxg2 Bd6 20. e3 Ke7 21. Kf3 Rhb8 0-1