CohenChessClub.com

[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/XcseNfL9"] [Date "2026.06.21"] [White "Nathaniel1"] [Black "ZePHyRos"] [Result "0-1"] [UTCDate "2026.06.21"] [UTCTime "17:19:57"] [WhiteElo "1126"] [BlackElo "1699"] [WhiteRatingDiff "-1"] [BlackRatingDiff "+1"] [BlackTitle "GM☢"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C20"] [Opening "King's Pawn Game: Leonardis Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. d3?! { (0.60 → -0.03) Inaccuracy. Nf3 was best. } { C20 King's Pawn Game: Leonardis Variation } (2. Nf3 Nc6 3. Bb5 Nge7 4. O-O Ng6 5. d4 exd4 6. Nxd4 Bc5 7. Nf5 O-O 8. Nc3 a6) 2... Nc6 3. f3? { (-0.16 → -1.42) Mistake. Nf3 was best. } (3. Nf3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Bf5 7. O-O Qd7 8. Nc3 Nxc3 9. bxc3 O-O-O) 3... Bc5 4. Ne2 Nf6 5. Qd2?! { (-1.40 → -2.20) Inaccuracy. Nbc3 was best. } (5. Nbc3 d5 6. Bg5 d4 7. Nd5 Qd6 8. Nxf6+ gxf6 9. Bd2 h5 10. a3 Bd7 11. f4 f5) 5... d6 6. Qg5 Nd4?? { (-1.83 → 0.39) Blunder. O-O was best. } (6... O-O 7. Nbc3) 7. Nxd4 Bxd4 8. Be3?? { (0.15 → -6.76) Blunder. Qxg7 was best. } (8. Qxg7 Rg8 9. Qh6 Rg6 10. Qh4 c6 11. Nc3 Qb6 12. g4 Be6 13. g5 Nd7 14. Nd1 d5) 8... Bxe3?? { (-6.76 → -0.52) Blunder. h6 was best. } (8... h6 9. Qxg7 Rh7 10. Qxh7 Nxh7 11. Bxd4 exd4 12. Nd2 Qg5 13. O-O-O Be6 14. g3 O-O-O 15. f4) 9. Qxe3 Qd7?! { (-0.62 → 0.23) Inaccuracy. O-O was best. } (9... O-O 10. Nc3 d5 11. Nxd5 Nxd5 12. exd5 Qxd5 13. Be2 Re8 14. O-O Bd7 15. Rf2 Qd6 16. Bf1) 10. Nc3 Qc6?! { (0.38 → 0.92) Inaccuracy. c5 was best. } (10... c5 11. Be2 b5 12. O-O b4 13. Nd1 Nh5 14. g3 Nf6 15. Qd2 O-O 16. f4 a5 17. Ne3) 11. Qd2 Be6 12. O-O-O O-O?! { (0.22 → 0.83) Inaccuracy. O-O-O was best. } (12... O-O-O 13. d4) 13. Kb1? { (0.83 → -0.54) Mistake. d4 was best. } (13. d4) 13... a5? { (-0.54 → 0.83) Mistake. d5 was best. } (13... d5 14. d4 exd4 15. Qxd4 dxe4 16. fxe4 Qb6 17. Qxb6 axb6 18. Be2 c6 19. a4 Rfd8 20. Rxd8+) 14. Qe3? { (0.83 → -0.41) Mistake. d4 was best. } (14. d4 Qb6) 14... b5 15. g4?? { (-0.25 → -2.86) Blunder. d4 was best. } (15. d4 exd4 16. Qxd4 b4 17. Ne2 Nd7 18. h4 Rab8 19. b3 a4 20. Nf4 Ne5 21. Be2 Qa8) 15... b4 16. Na4?? { (-2.38 → -8.97) Blunder. Ne2 was best. } (16. Ne2) 16... Qxa4 17. g5 Qxa2+ 18. Kc1 b3 19. gxf6 g6?? { (-8.33 → Mate in 5) Checkmate is now unavoidable. bxc2 was best. } (19... bxc2) 20. cxb3?? { (Mate in 5 → -8.13) Lost forced checkmate sequence. Qh6 was best. } (20. Qh6 Qb1+ 21. Kxb1 bxc2+ 22. Kxc2 Bb3+ 23. Kd2 Bxd1 24. Qg7#) 20... Bxb3 21. h4? { (-8.00 → Mate in 3) Checkmate is now unavoidable. Be2 was best. } (21. Be2 Kh8) 21... Rfc8?? { (Mate in 3 → -6.94) Lost forced checkmate sequence. Qa1+ was best. } (21... Qa1+ 22. Kd2 Qxd1+ 23. Kc3 Qc2#) 22. h5?? { (-6.94 → Mate in 3) Checkmate is now unavoidable. Kd2 was best. } (22. Kd2 Kh8) 22... Kf8?? { (Mate in 3 → -1.21) Lost forced checkmate sequence. Qa1+ was best. } (22... Qa1+ 23. Kd2 Qxd1+ 24. Kc3 Qc2#) 23. hxg6?? { (-1.21 → Mate in 3) Checkmate is now unavoidable. Bh3 was best. } (23. Bh3) 23... fxg6?? { (Mate in 3 → 0.00) Lost forced checkmate sequence. Qa1+ was best. } (23... Qa1+ 24. Kd2 Qxd1+ 25. Kc3 Qc2#) 24. Rxh7?? { (0.00 → Mate in 3) Checkmate is now unavoidable. Qh6+ was best. } (24. Qh6+ Ke8 25. Qg7 Qa1+ 26. Kd2 Qxd1+ 27. Ke3 Bf7 28. Bh3 Qb3 29. Qh8+ Bg8 30. Bxc8 Qb6+) 24... Qa1+ 25. Kd2 Qxd1+ 26. Kc3 Qc2# { Black wins by checkmate. } 0-1