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Puzzles (3 cohencoins award for each match):

Puzzle urrEb: 999999999

 Mark (1503) +8
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/JnzeSZL5"] [Date "2025.11.17"] [White "KiRiLL"] [Black "Mark"] [Result "0-1"] [UTCDate "2025.11.17"] [UTCTime "16:02:43"] [WhiteElo "1438"] [BlackElo "1503"] [WhiteRatingDiff "-8"] [BlackRatingDiff "+8"] [WhiteTitle "GM"] [BlackTitle "⛳"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B12"] [Opening "Caro-Kann Defense: Advance Variation, Van der Wiel Attack"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 { B12 Caro-Kann Defense: Advance Variation, Van der Wiel Attack } e6 5. Nf3 Ne7 6. Bd3 Bxd3 7. Qxd3 Nf5 8. Bf4 c5 9. dxc5 Bxc5 10. O-O-O Nc6 11. Qb5?! { (-0.16 → -1.00) Inaccuracy. g4 was best. } (11. g4 Nh4 12. Bg5 Be7 13. Bxh4 Bxh4 14. Nxh4 Qxh4 15. Qg3 Qxg3 16. hxg3 h6 17. Nb5 Nxe5) 11... Qd7?? { (-1.00 → 8.11) Blunder. Bxf2 was best. } (11... Bxf2 12. Qxb7 Qc8 13. Qxc8+ Rxc8 14. Kb1 h6 15. Nb5 Rb8 16. g4 Rxb5 17. gxf5 exf5 18. h4) 12. Ne4?? { (8.11 → -0.19) Blunder. Qxc5 was best. } (12. Qxc5) 12... Bxf2?? { (-0.19 → 5.58) Blunder. Bd4 was best. } (12... Bd4) 13. Nxf2 O-O 14. Rhe1 a6 15. Qd3 Nb4 16. Qb3 a5 17. a3 a4?! { (4.97 → 9.46) Inaccuracy. Na6 was best. } (17... Na6 18. g4 Ne7 19. Nd4 Nc6 20. Qe3 Rac8 21. Kb1 Nxd4 22. Rxd4 b5 23. Nd3 b4) 18. Qxb4 Rfc8 19. Rd3 Rc4 20. Qd2 Qc7 21. Rc3 d4 22. Rxc4 Qxc4 23. Re4 Qa2 24. Nxd4?? { (9.30 → Mate in 1) Checkmate is now unavoidable. Qb4 was best. } (24. Qb4) 24... Qa1# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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