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Puzzles (3 cohencoins award for each match):

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/S4IbOcJv"] [Date "2025.10.06"] [White "AVACODOISNOTATOMATO"] [Black "ChessMasterPlayer"] [Result "0-1"] [UTCDate "2025.10.06"] [UTCTime "23:40:41"] [WhiteElo "1510"] [BlackElo "1468"] [WhiteRatingDiff "-14"] [BlackRatingDiff "+10"] [WhiteTitle "IM"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A40"] [Opening "Horwitz Defense"] [Termination "Time forfeit"] [Annotator "cohenchessclub.com"] 1. d4 e6 { A40 Horwitz Defense } 2. Bf4 d5 3. e3 c5 4. dxc5 Bxc5 5. Nc3 Nc6 6. Qd2?! { (-0.47 → -1.25) Inaccuracy. Nf3 was best. } (6. Nf3) 6... Nf6 7. O-O-O O-O 8. Bd3?! { (-1.24 → -1.81) Inaccuracy. Nf3 was best. } (8. Nf3 Bd7 9. Bd3 Qa5 10. a3 a6 11. g4 Bxa3 12. bxa3 Qxa3+ 13. Kb1 Rfc8 14. g5) 8... d4?? { (-1.81 → 0.51) Blunder. e5 was best. } (8... e5 9. Bg5 Be6 10. f4 e4 11. Be2 d4 12. Bxf6 dxc3 13. Qxd8 Bxe3+ 14. Kb1 Nxd8 15. Bxc3) 9. exd4 Bxd4 10. Nb5?! { (0.61 → -0.09) Inaccuracy. Nf3 was best. } (10. Nf3 e5 11. Bg5 Bg4 12. Nxd4 exd4 13. Ne2 Bxe2 14. Qxe2 Nb4 15. Qd2 Qa5 16. Bxf6 Nxa2+) 10... Be5?? { (-0.09 → 7.81) Blunder. e5 was best. } (10... e5 11. Bg5) 11. Bxe5 Nxe5 12. Qf4?? { (7.91 → -1.57) Blunder. Bxh7+ was best. } (12. Bxh7+ Nxh7 13. Qxd8 Bd7 14. Qa5 b6 15. Qa6 Bxb5 16. Qxb5 Ng6 17. Ne2 Nf6 18. Nd4 Nf4) 12... Qa5?? { (-1.57 → 2.72) Blunder. Nxd3+ was best. } (12... Nxd3+ 13. Rxd3 Qa5 14. Nc3 e5 15. Qh4 Bf5 16. Re3 h6 17. a3 Rfc8 18. Nge2 Rc6 19. Rd1) 13. Qh4?? { (2.72 → -7.44) Blunder. Qxe5 was best. } (13. Qxe5 a6 14. b4 Qxb4 15. Qd4 Qa5 16. Nd6 b5 17. Nf3 Qxa2 18. Ne5 Qa3+ 19. Qb2 Qa5) 13... Nxd3+ 14. Rxd3 Qxb5 15. Ne2 e5 16. Nc3 Qc6 17. f3 Bf5 18. Re3 Qc5 19. f4 exf4 20. Qxf4 Be6 21. Rhe1 Nd5 22. Qg5 f6 23. Qh5 b6?? { (-8.53 → -0.32) Blunder. Bf7 was best. } (23... Bf7 24. Qf5 Rad8 25. Rd3 g6 26. Qxd5 Rxd5 27. Nxd5 Bxd5 28. Red1 Bxa2 29. g3 a5 30. h4) 24. Rxe6 Nxc3 25. bxc3?? { (-0.50 → -10.23) Blunder. Qxc5 was best. } (25. Qxc5 Nxa2+ 26. Kb1 bxc5 27. Kxa2 h5 28. Kb3 Rfc8 29. Kc4 a5 30. R6e2 a4 31. Ra1 Kf7) 25... Qxh5 26. h3 Rae8 27. Kd2 Rxe6 28. Rxe6 Qg5+ 29. Ke2 Qxg2+ 30. Kd1 Qxh3 31. Re7 Qxc3 32. Rxa7 Qa1+ 33. Kd2 Rd8+ 34. Ke3 Qe1+ 35. Kf4 Rd2 36. Ra8+ Kf7 { Black wins on time. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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