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Puzzles (3 cohencoins award for each match):

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/MAxfGTMj"] [Date "2026.01.16"] [White "Trekker"] [Black "Eli4"] [Result "1-0"] [UTCDate "2026.01.16"] [UTCTime "21:12:26"] [WhiteElo "1841"] [BlackElo "823"] [WhiteRatingDiff "+0"] [BlackRatingDiff "+0"] [WhiteTitle "GM🎅"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A01"] [Opening "Nimzo-Larsen Attack: Modern Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. b3 e5 2. Bb2 { A01 Nimzo-Larsen Attack: Modern Variation } d6 3. c4 Nf6 4. e3 Nc6 5. d4?! { (0.36 → -0.22) Inaccuracy. Nc3 was best. } (5. Nc3 Bf5) 5... Be6?? { (-0.22 → 5.70) Blunder. exd4 was best. } (5... exd4 6. exd4 d5 7. a3 g6 8. Nf3 Bg7 9. Be2 O-O 10. O-O Nh5 11. cxd5 Ne7 12. Re1) 6. d5 Be7 7. c5?? { (7.00 → -3.02) Blunder. Be2 was best. } (7. Be2 Bf5 8. dxc6 bxc6 9. Nf3 a5 10. Nc3 a4 11. Nxa4 Rxa4 12. bxa4 Qa8 13. O-O Nd7) 7... Qd7?? { (-3.02 → 4.49) Blunder. Nxd5 was best. } (7... Nxd5 8. cxd6 Qxd6 9. a3 f5 10. b4 O-O-O 11. Nd2 Bf6 12. b5 Nd4 13. Rc1 Kb8 14. Nc4) 8. dxe6 O-O?! { (5.21 → 14.69) Inaccuracy. Qxe6 was best. } (8... Qxe6 9. Bb5) 9. exd7 Nd4 10. exd4 exd4 11. Bxd4 Ne4 12. Qg4 Nxf2 13. Qxg7# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting