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Puzzles (3 cohencoins award for each match):

Puzzle Yf3ZV: 407

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/rWOn0oq5"] [Date "2025.11.08"] [White "Nikolai"] [Black "Maxim"] [Result "0-1"] [UTCDate "2025.11.08"] [UTCTime "18:04:24"] [WhiteElo "1060"] [BlackElo "1747"] [WhiteRatingDiff "+0"] [BlackRatingDiff "+0"] [BlackTitle "GM🧂"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A46"] [Opening "Indian Defense: London System"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 Nf6 2. Nf3 e6 3. Bf4 { A46 Indian Defense: London System } c5 4. dxc5 Bxc5 5. e3 Nc6 6. c3 Qb6?! { (-0.60 → 0.10) Inaccuracy. O-O was best. } (6... O-O) 7. Bd3?? { (0.10 → -2.82) Blunder. b4 was best. } (7. b4 Be7 8. a4 Qd8 9. h3 O-O 10. Be2 d5 11. O-O Bd6 12. Bxd6 Qxd6 13. a5 a6) 7... Qxb2 8. Nbd2 Qxc3 9. O-O?? { (-2.37 → -7.61) Blunder. Be2 was best. } (9. Be2 d5) 9... O-O?? { (-7.61 → -1.39) Blunder. Qxd3 was best. } (9... Qxd3 10. Rc1) 10. Qe2 Qa5 11. h3 Bb4 12. e4 Bxd2?? { (-1.75 → 0.85) Blunder. Qh5 was best. } (12... Qh5 13. Rfc1) 13. Bxd2 Qd8?? { (0.60 → 4.67) Blunder. Qa4 was best. } (13... Qa4 14. e5) 14. g3?? { (4.67 → -2.78) Blunder. e5 was best. } (14. e5) 14... d5?! { (-2.78 → -1.69) Inaccuracy. e5 was best. } (14... e5 15. Rfd1) 15. exd5?? { (-1.69 → -4.70) Blunder. e5 was best. } (15. e5) 15... exd5 16. h4?! { (-5.08 → -6.83) Inaccuracy. g4 was best. } (16. g4 Re8) 16... Bg4 17. Bg5 h6 18. Bxf6 Qxf6 19. Kg2 Ne5 20. Qd2 Bxf3+ 21. Kg1 Qe6 22. Bc2? { (-9.54 → Mate in 3) Checkmate is now unavoidable. Kh2 was best. } (22. Kh2 Bh5) 22... Qh3 23. Bb1 Qg2# { White resigns. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting