CohenChessClub.com

[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/32tDVQrK"] [Date "2026.08.16"] [White "Nathaniel1"] [Black "Grayson"] [Result "0-1"] [UTCDate "2026.08.16"] [UTCTime "17:40:42"] [WhiteElo "1085"] [BlackElo "1246"] [WhiteRatingDiff "-15"] [BlackRatingDiff "+8"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B20"] [Opening "Sicilian Defense"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 c5 { B20 Sicilian Defense } 2. Bb5 e6 3. Nf3 Ne7 4. O-O g6?? { (0.15 → 2.24) Blunder. a6 was best. } (4... a6) 5. Re1?? { (2.24 → 0.57) Blunder. d4 was best. } (5. d4 b6 6. dxc5 bxc5 7. Qd6 Nec6 8. Qg3 Bg7 9. Bf4 Bxb2 10. Nbd2 Bxa1 11. Rxa1 Ba6) 5... Bg7 6. e5?! { (0.72 → -0.20) Inaccuracy. c3 was best. } (6. c3 a6 7. Bf1 d5 8. e5 d4 9. d3 b5 10. Nbd2 Nd7 11. a4 Bb7 12. cxd4 cxd4) 6... O-O 7. Na3?! { (0.02 → -0.50) Inaccuracy. d4 was best. } (7. d4 a6) 7... a6 8. Ba4?? { (-0.56 → -3.78) Blunder. Bf1 was best. } (8. Bf1 b5) 8... Nd5?? { (-3.78 → 0.44) Blunder. b5 was best. } (8... b5 9. Bb3 c4 10. Bxc4 bxc4 11. Nxc4 Bb7 12. b3 Bxf3 13. Qxf3 Nbc6 14. Bb2 Qc7 15. Rad1) 9. c4 Nf4?? { (0.52 → 2.55) Blunder. Ne7 was best. } (9... Ne7 10. d4) 10. Re4?? { (2.55 → -1.31) Blunder. d4 was best. } (10. d4 Nxg2) 10... Nd3 11. Ne1?? { (-1.55 → -4.56) Blunder. Re3 was best. } (11. Re3 Nxc1) 11... b5?? { (-4.56 → 0.29) Blunder. d5 was best. } (11... d5 12. Re3) 12. Nxd3 Bb7?? { (0.11 → 2.10) Blunder. bxa4 was best. } (12... bxa4 13. Nxc5) 13. Bb3?? { (2.10 → -1.88) Blunder. Re2 was best. } (13. Re2 bxa4 14. Nxc5 Bxg2 15. Kxg2 d6 16. Nxa4 dxe5 17. Nc2 Nc6 18. f3 f5 19. d4 e4) 13... Bxe4 14. Nxc5 Bf5?? { (-2.33 → -0.02) Blunder. Bc6 was best. } (14... Bc6 15. d4 d6 16. exd6 Qxd6 17. Be3 Nd7 18. Nd3 Bxd4 19. Nb4 Qxb4 20. Qxd4 Rfe8 21. Bh6) 15. Bc2?? { (-0.02 → -5.46) Blunder. d4 was best. } (15. d4 b4 16. Nc2 Nc6 17. Be3 Qc7 18. g4 Bxc2 19. Qxc2 f6 20. exf6 Rxf6 21. Qe4 Raf8) 15... Bxc2 16. Qxc2 Bxe5?! { (-6.00 → -4.35) Inaccuracy. b4 was best. } (16... b4 17. Qe4 Nc6 18. Nc2 Nxe5 19. Qe2 Nc6 20. d4 Nxd4 21. Nxd4 Bxd4 22. Be3 Bxe3 23. Qxe3) 17. Nd3?! { (-4.35 → -6.92) Inaccuracy. cxb5 was best. } (17. cxb5 axb5) 17... Bf6 18. cxb5 axb5 19. Nxb5 Nc6 20. Nd6 Be7 21. Nf5?! { (-6.01 → -8.52) Inaccuracy. Nb5 was best. } (21. Nb5 Qb6) 21... Bf6 22. Nd6 Ra5?? { (-6.26 → -0.95) Blunder. Bg7 was best. } (22... Bg7 23. Nb5) 23. b4?? { (-0.95 → -8.30) Blunder. Nb7 was best. } (23. Nb7 Qb6) 23... Rh5 24. b5 Be5?? { (-7.91 → 0.95) Blunder. Bxa1 was best. } (24... Bxa1 25. bxc6 dxc6 26. Ba3 Qh4 27. h3 Rd5 28. Ne1 Rb8 29. Nf3 Qf4 30. Nxf7 Kxf7 31. Qxc6) 25. Nxe5 Nxe5?! { (1.12 → 1.71) Inaccuracy. Qh4 was best. } (25... Qh4 26. Nf3) 26. a4?? { (1.71 → -2.33) Blunder. Qc3 was best. } (26. Qc3) 26... Ng4? { (-2.33 → -0.95) Mistake. Qh4 was best. } (26... Qh4 27. h3 Qd4 28. Qc3 Qxd6 29. d4 Nc6 30. Ba3 Qxd4 31. Qxd4 Nxd4 32. Bxf8 Kxf8 33. b6) 27. a5?? { (-0.95 → -8.46) Blunder. h3 was best. } (27. h3 Nxf2) 27... Rxh2 28. Qe4? { (-8.12 → Mate in 4) Checkmate is now unavoidable. Ne4 was best. } (28. Ne4 Qh4) 28... f5?? { (Mate in 4 → -2.43) Lost forced checkmate sequence. Rh1+ was best. } (28... Rh1+ 29. Kxh1 Qh4+ 30. Kg1 Qxf2+ 31. Kh1 Qf1#) 29. Qf3?? { (-2.43 → -8.24) Blunder. Qd4 was best. } (29. Qd4 Qh4 30. Kf1 e5 31. Qd5+ Kg7 32. Ke2 Qxf2+ 33. Kd3 Rxg2 34. a6 Qe2+ 35. Kc3 Rg3+) 29... Qb8?? { (-8.24 → 0.00) Blunder. Qh4 was best. } (29... Qh4) 30. Qb3?? { (0.00 → -11.81) Blunder. Qg3 was best. } (30. Qg3 Qd8 31. Bb2 Qg5 32. Qc3 Rh1+ 33. Kxh1 Qh4+ 34. Kg1 Qxf2+ 35. Kh1 Qh4+ 36. Kg1 Qf2+) 30... Qxd6 31. b6?! { (-12.18 → Mate in 2) Checkmate is now unavoidable. Qg3 was best. } (31. Qg3 Qd4 32. Bb2 Qxb2 33. Rd1 Rh5 34. b6 Qc2 35. Qf3 Qa4 36. Rb1 Qxa5 37. Qc3 Qxc3) 31... Rh6?! { (Mate in 2 → -10.80) Lost forced checkmate sequence. Rh1+ was best. } (31... Rh1+ 32. Kxh1 Qh2#) 32. b7?! { (-10.80 → Mate in 2) Checkmate is now unavoidable. Qg3 was best. } (32. Qg3 Qd4) 32... Qh2+?! { (Mate in 2 → -16.27) Lost forced checkmate sequence. Rh1+ was best. } (32... Rh1+ 33. Kxh1 Qh2#) 33. Kf1 Rb8 34. a6 Qf4 35. a7?! { (-13.05 → Mate in 1) Checkmate is now unavoidable. Ke2 was best. } (35. Ke2 Qe5+) 35... Qxf2# { Black wins by checkmate. } 0-1