CohenChessClub.com

[Event "October Chess Megatournament"] [Site "https://cohenchessclub.com/I5qhwxBf"] [Date "2026.10.25"] [White "Alexander9"] [Black "Nikolai"] [Result "1-0"] [UTCDate "2026.10.25"] [UTCTime "19:05:21"] [WhiteElo "959"] [BlackElo "1024"] [WhiteRatingDiff "+24"] [BlackRatingDiff "-17"] [Variant "Standard"] [TimeControl "600+1"] [ECO "A00"] [Opening "Zukertort Opening: Reversed Mexican Defense"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. Nf3 d5 2. Nc3 { A00 Zukertort Opening: Reversed Mexican Defense } Nf6 3. d4 c6 4. Qd3 Bg4 5. h3 Bxf3 6. Qxf3 e6 7. Bg5 Be7 8. O-O-O?! { (-0.59 → -1.18) Inaccuracy. g4 was best. } (8. g4 O-O) 8... O-O? { (-1.18 → 0.11) Mistake. b5 was best. } (8... b5 9. Bxf6) 9. Kb1?? { (0.11 → -1.50) Blunder. e4 was best. } (9. e4 dxe4 10. Nxe4 Nxe4 11. Bxe7 Qxe7 12. Qxe4 Nd7 13. Bd3 Nf6 14. Qf3 Qd6 15. Kb1 a5) 9... h6?? { (-1.50 → 0.44) Blunder. b5 was best. } (9... b5 10. Bxf6 Bxf6 11. e4 b4 12. Na4 Nd7 13. e5 Be7 14. Bd3 Nb6 15. Nc5 Bxc5 16. dxc5) 10. Bh4? { (0.44 → -0.88) Mistake. h4 was best. } (10. h4) 10... Nbd7 11. e3 Bb4 12. Ne2 Qe7 13. Nf4?? { (0.00 → -2.03) Blunder. c3 was best. } (13. c3 Bd6 14. g4 g6 15. Qg2 b5 16. g5 Ne8 17. Nc1 Ng7 18. gxh6 Qxh4 19. hxg7 Kxg7) 13... Bd6?? { (-2.03 → 0.70) Blunder. g5 was best. } (13... g5) 14. a3?? { (0.70 → -2.80) Blunder. Nh5 was best. } (14. Nh5 a5 15. Bd3 Rfc8 16. e4 dxe4 17. Bxe4 a4 18. a3 Ra5 19. Nxf6+ Nxf6 20. Rhe1 g5) 14... Bxf4?? { (-2.80 → -0.19) Blunder. g5 was best. } (14... g5) 15. Qxf4 Nb6?? { (-0.10 → 2.35) Blunder. b5 was best. } (15... b5 16. Bd3) 16. Qf3?? { (2.35 → 0.25) Blunder. g4 was best. } (16. g4) 16... Qd6?? { (0.25 → 7.00) Blunder. Na4 was best. } (16... Na4 17. Bxf6 Qxf6 18. Qxf6 gxf6 19. c4 dxc4 20. Bxc4 Nb6 21. Bb3 Rfd8 22. g4 Nc8 23. Bc2) 17. Bxf6 gxf6 18. Qxf6 Nc4 19. b3?? { (7.69 → 3.04) Blunder. Bxc4 was best. } (19. Bxc4) 19... Nb6?? { (3.04 → 7.99) Blunder. e5 was best. } (19... e5 20. dxe5 Qxe5 21. Qxe5 Nxe5 22. Kc1 Rad8 23. Rd4 Rd6 24. e4 Rf6 25. exd5 Rxf2 26. dxc6) 20. Qxh6 Nd7 21. Qg5+ Kh7 22. Bd3+ Kh8? { (9.53 → Mate in 2) Checkmate is now unavoidable. f5 was best. } (22... f5 23. g4) 23. Qh6+ Kg8 24. Qh7# { White wins by checkmate. } 1-0