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Puzzles (3 cohencoins award for each match):

Puzzle dAoSf: 413

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/YRVxNdV1"] [Date "2026.02.17"] [White "Garyd"] [Black "Cora"] [Result "1-0"] [UTCDate "2026.02.17"] [UTCTime "15:13:53"] [WhiteElo "1690"] [BlackElo "1476"] [WhiteRatingDiff "+3"] [BlackRatingDiff "-10"] [WhiteTitle "GM๐Ÿ™Œ"] [BlackTitle "๐Ÿงถ"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D02"] [Opening "Queen's Pawn Game: Chigorin Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 d5 2. Nf3 Nc6 { D02 Queen's Pawn Game: Chigorin Variation } 3. Bf4 Bf5 4. e3 Nf6?! { (0.35 โ†’ 0.96) Inaccuracy. e6 was best. } (4... e6 5. a3 Bd6 6. Bg3 Nf6 7. c4 O-O 8. Nbd2 Bxg3 9. hxg3 h6 10. Be2 a5 11. O-O) 5. Bd3?! { (0.96 โ†’ 0.34) Inaccuracy. Bb5 was best. } (5. Bb5 Nd7 6. c4 dxc4 7. O-O Bd3 8. Re1 a6 9. Bxc6 bxc6 10. Nbd2 e6 11. Rc1 Bb4) 5... Bxd3 6. Qxd3 Nb4?? { (0.48 โ†’ 4.48) Blunder. e6 was best. } (6... e6 7. O-O Bd6 8. Bg5 h6 9. Bxf6 Qxf6 10. c4 dxc4 11. Qxc4 O-O-O 12. Nc3 g5 13. Nb5) 7. Qd2?? { (4.48 โ†’ 0.29) Blunder. Qb5+ was best. } (7. Qb5+) 7... Ne4?? { (0.29 โ†’ 7.66) Blunder. e6 was best. } (7... e6 8. a3 Nc6 9. Qe2 h6 10. Bg3 Bd6 11. c4 Bxg3 12. hxg3 O-O 13. O-O Ne7 14. Nbd2) 8. Qxb4 e6 9. Qb3 Bd6 10. Bg3 Bxg3 11. hxg3 O-O 12. Qd3 Ng5 13. Nxg5 Qxg5?! { (10.46 โ†’ Mate in 1) Checkmate is now unavoidable. g6 was best. } (13... g6 14. f4 Qe7 15. Nxh7 Rfe8 16. Nd2 Kg7 17. O-O-O Rh8 18. Ng5 f6 19. Ngf3 Rxh1 20. Rxh1) 14. Qxh7# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting