CohenChessClub.com

[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/XkaeyfRj"] [Date "2026.03.29"] [White "Sydney"] [Black "Grayson"] [Result "0-1"] [UTCDate "2026.03.29"] [UTCTime "17:25:18"] [WhiteElo "1154"] [BlackElo "1209"] [WhiteRatingDiff "-36"] [BlackRatingDiff "+11"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A04"] [Opening "Zukertort Opening: Sicilian Invitation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. Nf3 c5 { A04 Zukertort Opening: Sicilian Invitation } 2. d3?! { (0.50 → -0.08) Inaccuracy. c4 was best. } (2. c4) 2... Nc6 3. e3 g6?! { (-0.34 → 0.38) Inaccuracy. d5 was best. } (3... d5 4. d4 cxd4 5. exd4 Bg4 6. Be2 e6 7. O-O Bd6 8. h3 Bh5 9. c3 Qc7 10. Re1) 4. Be2?! { (0.38 → -0.25) Inaccuracy. d4 was best. } (4. d4) 4... Bg7 5. O-O e6?! { (-0.30 → 0.21) Inaccuracy. Nf6 was best. } (5... Nf6 6. d4 d5 7. Nbd2 b6 8. b3 O-O 9. Bb2 Bb7 10. Rc1 Ne4 11. c3 e5 12. Nxe4) 6. Nc3 Nge7 7. a3 O-O 8. a4?! { (-0.34 → -1.21) Inaccuracy. d4 was best. } (8. d4 d6 9. dxc5 dxc5 10. e4 Nd4 11. Nb5 Nxf3+ 12. Bxf3 Bd7 13. a4 a6 14. Nd6 Qc7) 8... b6 9. b3?? { (-1.17 → -8.61) Blunder. d4 was best. } (9. d4 d5) 9... Ba6?? { (-8.61 → -0.86) Blunder. Bxc3 was best. } (9... Bxc3) 10. d4 cxd4?! { (-1.04 → -0.47) Inaccuracy. Bb7 was best. } (10... Bb7 11. Bb2 d5 12. dxc5 bxc5 13. a5 d4 14. Na4 Qxa5 15. e4 Nb8 16. Ba3 Na6 17. h4) 11. exd4 e5?? { (-0.61 → 7.02) Blunder. Bb7 was best. } (11... Bb7 12. Nb5) 12. Nxe5?? { (7.02 → 0.37) Blunder. Bxa6 was best. } (12. Bxa6 exd4) 12... Nxe5?? { (0.37 → 3.38) Blunder. Bxe2 was best. } (12... Bxe2 13. Nxe2 Nxe5 14. dxe5 Bxe5 15. c3 Qc7 16. g3 d5 17. Ra2 Rfe8 18. Rd2 Rad8 19. Rd3) 13. dxe5?? { (3.38 → 0.76) Blunder. Bxa6 was best. } (13. Bxa6 N5c6 14. Ne2 Nb4 15. Bb7 Rb8 16. Bf3 Nbd5 17. c3 Rc8 18. Qd3 Nf6 19. Re1 d5) 13... Bxe5 14. Bxa6 Bxc3 15. Ra3?! { (1.24 → 0.35) Inaccuracy. Rb1 was best. } (15. Rb1) 15... Qc7 16. f4? { (0.35 → -0.76) Mistake. b4 was best. } (16. b4 Bxb4) 16... Qc5+ 17. Rf2?? { (-0.47 → -5.90) Blunder. Kh1 was best. } (17. Kh1) 17... Bd4 18. Qf1 Bxf2+? { (-8.22 → -3.73) Mistake. Qxc2 was best. } (18... Qxc2 19. Ra1 Rfe8 20. Ba3 Nf5 21. g4 Nh4 22. Bc4 Qd2 23. a5 bxa5 24. Bxf7+ Kxf7 25. Bc5) 19. Qxf2 Qc3?! { (-3.55 → -2.62) Inaccuracy. Nd5 was best. } (19... Nd5 20. Bc4) 20. b4? { (-2.62 → -4.37) Mistake. Qd2 was best. } (20. Qd2 Qc5+ 21. Kf1 Nc6 22. Ra1 Qd4 23. Qxd4 Nxd4 24. Ra2 Rfe8 25. Bd2 Rab8 26. Kf2 Ne6) 20... Qxb4 21. c3 Qa5 22. Bf1 Nd5 23. g3 Nxc3?! { (-6.19 → -4.67) Inaccuracy. Qc5 was best. } (23... Qc5 24. c4) 24. Bd2 Qb4?? { (-4.65 → 1.76) Blunder. Ne4 was best. } (24... Ne4 25. Bxa5) 25. Rxc3 Qxa4 26. Rc4 Qa2?? { (1.68 → 4.68) Blunder. Qd1 was best. } (26... Qd1 27. f5) 27. Bd3?? { (4.68 → -0.45) Blunder. Qd4 was best. } (27. Qd4) 27... Qb1+?? { (-0.45 → 10.49) Blunder. b5 was best. } (27... b5) 28. Kg2?? { (10.49 → -7.90) Blunder. Bxb1 was best. } (28. Bxb1) 28... Qxd3 29. Rc1 Rfc8 30. Re1 Rc7 31. Re3 Qc2 32. Rc3 Rxc3 33. Bxc3 Qxc3 34. h3 Re8 35. Qf3 Qc2+ 36. Kf1 Re6 37. Qd5?! { (-66.68 → Mate in 6) Checkmate is now unavoidable. h4 was best. } (37. h4 Qd2 38. Qf2 Qd1+ 39. Kg2 Re2 40. h5 Qd2 41. Qxe2 Qxe2+ 42. Kg1 Qf3 43. Kh2 Qf2+) 37... Rc6?! { (Mate in 6 → -60.21) Lost forced checkmate sequence. Re3 was best. } (37... Re3 38. Qa8+ Kg7 39. Qd5 Qe2+ 40. Kg1 Rxg3+ 41. Kh1 Qe1+ 42. Kh2 Qg1#) 38. Qxd7 Qb2 39. Qxc6 a5 40. Qc8+ Kg7 41. Qd7 b5 42. Qa7 a4 43. Qb6 a3 44. g4 a2 45. f5?! { (-10.86 → Mate in 1) Checkmate is now unavoidable. Qa5 was best. } (45. Qa5 b4) 45... a1=Q# { Black wins by checkmate. } 0-1