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Puzzles (3 cohencoins award for each match):

Puzzle 0JORJ: 253

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/FGsaiNWN"] [Date "2026.03.27"] [White "Cora"] [Black "Trekker"] [Result "0-1"] [UTCDate "2026.03.27"] [UTCTime "20:34:18"] [WhiteElo "1396"] [BlackElo "1805"] [WhiteRatingDiff "-2"] [BlackRatingDiff "+2"] [WhiteTitle "๐Ÿงถ"] [BlackTitle "GM๐ŸŽ…"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D01"] [Opening "Rapport-Jobava System"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 Nf6 2. Bf4 d5 3. Nc3 { D01 Rapport-Jobava System } c5 4. dxc5?! { (0.01 โ†’ -0.72) Inaccuracy. e3 was best. } (4. e3 cxd4) 4... d4 5. Bxb8?? { (-0.76 โ†’ -2.45) Blunder. Nb1 was best. } (5. Nb1 e5 6. Bxe5 Nc6 7. Nf3 Bxc5 8. Bxf6 Qxf6 9. g3 Bf5 10. Bg2 Nb4 11. Na3 O-O) 5... Rxb8 6. Na4?? { (-2.16 โ†’ -4.83) Blunder. Nb1 was best. } (6. Nb1 e5 7. Nf3 Bxc5 8. Nxe5 O-O 9. Nd3 b6 10. g3 Qd5 11. Rg1 Qh5 12. Bg2 Qxh2) 6... Qa5+ 7. c3 Bd7 8. Qxd4 Qxa4 9. Qxa4 Bxa4 10. e3 e5 11. b3 Bc6 12. Nf3 Bxf3 13. gxf3 Bxc5 14. b4 Bb6 15. Bb5+ Nd7?? { (-7.46 โ†’ 2.68) Blunder. Ke7 was best. } (15... Ke7 16. O-O-O) 16. Bxd7+?? { (2.68 โ†’ -7.10) Blunder. O-O-O was best. } (16. O-O-O Rd8 17. Rxd7 Rxd7 18. Rd1 a6 19. Bxd7+ Ke7 20. Bf5 Rb8 21. Rd5 g6 22. Bh3 Kf8) 16... Kxd7 17. f4 exf4 18. exf4 Rhe8+ 19. Kf1 Ke6 20. Re1+ Kf5 21. Rxe8 Rxe8 22. Kg2 Re2 23. Kf3 Rxf2+ 24. Kg3 Rxf4 25. Kg2 Kg4 26. Rf1 Rxf1 27. Kxf1 Kh3 28. c4 Kxh2 29. c5 Bc7 30. a4 g5 31. Ke2 g4 32. Kf2 g3+ 33. Kf1 g2+ 34. Kf2 g1=Q+ 35. Ke2 Bf4 36. Kd3 Qe3+ 37. Kc4 a6 38. b5 Qe4+ 39. Kb3 Bd2 40. bxa6 Qd3+ 41. Ka2 Qc2+ 42. Ka3 Qc3+ 43. Ka2 Bc1 44. a5 Qb2# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting