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Puzzles (3 cohencoins award for each match):

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/NBzgEvCt"] [Date "2025.09.12"] [White "BENJAMIN4"] [Black "Trekker"] [Result "0-1"] [UTCDate "2025.09.12"] [UTCTime "20:14:14"] [WhiteElo "1690"] [BlackElo "1834"] [WhiteRatingDiff "-4"] [BlackRatingDiff "+5"] [WhiteTitle "🌊"] [BlackTitle "GM🎅"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A45"] [Opening "Indian Defense"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 Nf6 { A45 Indian Defense } 2. Bf4 d5 3. e3 c5 4. Nf3 Nc6 5. c4?! { (-0.03 → -0.69) Inaccuracy. Be2 was best. } (5. Be2 cxd4) 5... e6?! { (-0.69 → 0.17) Inaccuracy. Bg4 was best. } (5... Bg4) 6. Nc3 cxd4 7. Nxd4 Bb4 8. Nxc6 bxc6 9. cxd5 cxd5?? { (-0.43 → 8.43) Blunder. Nxd5 was best. } (9... Nxd5 10. Qc2 Qa5 11. Bd3 Ba6 12. O-O Bxd3 13. Qxd3 Bxc3 14. bxc3 O-O 15. Rfc1 Nxf4 16. exf4) 10. Qa4+ Bd7 11. Qxb4 Nh5 12. Bg3 Nxg3 13. hxg3 Rb8 14. Qh4 Qa5 15. Qd4 Rxb2 16. Bd3?! { (8.30 → 4.73) Inaccuracy. Qxg7 was best. } (16. Qxg7 Rc2 17. Qxh8+ Ke7 18. Bd3 Qxc3+ 19. Qxc3 Rxc3 20. Kd2 Ra3 21. Rxh7 d4 22. exd4 a6) 16... f6 17. O-O?? { (4.83 → -2.68) Blunder. Rc1 was best. } (17. Rc1 Kf7) 17... e5?? { (-2.68 → 7.62) Blunder. Rb4 was best. } (17... Rb4 18. Bg6+) 18. Qxd5 Qxc3 19. Rfc1 Qd2 20. Qa8+?? { (8.69 → 0.00) Blunder. Rc7 was best. } (20. Rc7) 20... Ke7 21. Qxh8?? { (0.00 → Mate in 2) Checkmate is now unavoidable. Qe4 was best. } (21. Qe4 Rc8 22. Rxc8 Qxf2+ 23. Kh2 Bxc8 24. Rc1 Bd7 25. Rc7 Kd6 26. Rxd7+ Kxd7 27. Qd5+ Ke7) 21... Qxf2+ { White resigns. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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