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Puzzles (3 cohencoins award for each match):

Puzzle YzsY2: 298

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/AYbXFS7i"] [Date "2025.11.14"] [White "Aditya"] [Black "David3"] [Result "1-0"] [UTCDate "2025.11.14"] [UTCTime "21:37:48"] [WhiteElo "1380"] [BlackElo "1543"] [WhiteRatingDiff "+78"] [BlackRatingDiff "-13"] [BlackTitle "IM🔱"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B13"] [Opening "Caro-Kann Defense: Exchange Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 c6 2. d4 d5 3. exd5 { B13 Caro-Kann Defense: Exchange Variation } cxd5 4. Nf3 Bf5 5. Bb5+ Nd7 6. Ne5 Nf6 7. Nxd7 Bxd7 8. Bxd7+ Nxd7 9. O-O e6 10. Nc3 Bd6 11. Qg4 O-O 12. Bh6?! { (-0.22 → -0.93) Inaccuracy. Bg5 was best. } (12. Bg5 Nf6 13. Qe2 Re8 14. Bxf6 Qxf6 15. Nb5 Bf4 16. c3 a6 17. Na3 e5 18. Rae1 Re6) 12... g6?? { (-0.93 → 2.33) Blunder. Qf6 was best. } (12... Qf6 13. Bc1 h5 14. Qh3 Rfc8 15. Nxd5 Qxd4 16. Nc3 Qe5 17. Bd2 Nf6 18. Rae1 Qd4 19. Bg5) 13. Bxf8 Qxf8?? { (2.27 → 5.41) Blunder. Kxf8 was best. } (13... Kxf8 14. Qe2 Nf6 15. Nd1 Qb6 16. c3 Kg7 17. h4 h5 18. g3 a6 19. Kg2 Qc7 20. f4) 14. Nb5?? { (5.41 → 2.36) Blunder. Nxd5 was best. } (14. Nxd5 h5) 14... Nf6 15. Qf3 Be7 16. Nc7?? { (3.15 → 0.33) Blunder. c4 was best. } (16. c4 dxc4) 16... Rc8 17. Nb5 a6? { (0.35 → 1.54) Mistake. Rxc2 was best. } (17... Rxc2) 18. Na3?? { (1.54 → -0.80) Blunder. Nc3 was best. } (18. Nc3 h5 19. Rfc1 Qh6 20. Ne2 Ne4 21. c3 h4 22. Qd3 Nd6 23. b3 b5 24. Rc2 Kg7) 18... Ne4 19. Rac1?? { (-0.43 → -3.39) Blunder. Qe3 was best. } (19. Qe3 Bxa3 20. Qxa3 Qxa3 21. bxa3 b5 22. a4 bxa4 23. Rfb1 Rxc2 24. Rb6 Rxf2 25. Rxa6 Kg7) 19... Nd2 20. Qe2? { (-3.09 → -5.25) Mistake. Qe3 was best. } (20. Qe3 Nxf1) 20... Nxf1 21. Qxf1 Qh6? { (-5.63 → -2.96) Mistake. Bxa3 was best. } (21... Bxa3) 22. Rd1? { (-2.96 → -5.93) Mistake. Qe1 was best. } (22. Qe1 Qf8) 22... Bd6 23. Qd3?! { (-6.03 → -8.80) Inaccuracy. h3 was best. } (23. h3 Qf4) 23... Qxh2+ 24. Kf1 Bb4 25. c3 Qh1+ 26. Ke2 Qh5+ 27. Ke1 Bxa3 28. bxa3 Rc4 29. Rb1 b5 30. Rb4 Qh1+ 31. Ke2 Qh5+ 32. f3 Qh2 33. Rxc4 bxc4 34. Qb1 Qxg2+ 35. Ke3 Qg5+ 36. Kf2 Qd2+ 37. Kg3 Qxc3?? { (-9.12 → 0.00) Blunder. Qg5+ was best. } (37... Qg5+ 38. Kf2 Qf4 39. Qe1 g5 40. Kg2 h5 41. Qg3 Qxg3+ 42. Kxg3 Kg7 43. a4 Kg6 44. a5) 38. Qb8+ Kg7 39. Qb6?? { (0.00 → -10.73) Blunder. Qe5+ was best. } (39. Qe5+ Kf8 40. Qd6+ Ke8 41. Qc6+ Kd8 42. Qd6+ Kc8 43. Qc6+ Kb8 44. Qb6+ Kc8) 39... Qxa3 40. Qb2?! { (-10.76 → Mate in 7) Checkmate is now unavoidable. Kf2 was best. } (40. Kf2 Qxa2+ 41. Kg3 Qd2 42. Qxa6 c3 43. Qa5 Qxd4 44. Qc7 Qg1+ 45. Kh3 Qe3 46. Kg3 h5) 40... Qd6+?! { (Mate in 7 → -10.50) Lost forced checkmate sequence. Qxb2 was best. } (40... Qxb2 41. f4 c3 42. f5 c2 43. f6+ Kxf6 44. Kg2 c1=Q+ 45. Kf3 Qg1 46. a4 Qbf2#) 41. Kg2 a5 42. a4 Qf4 43. Qb5 Qxd4 44. Qxa5 Qd2+?? { (-27.87 → 6.60) Blunder. c3 was best. } (44... c3 45. Kf1 c2 46. Qe1 Qc4+ 47. Kg2 c1=Q 48. Qf2 Qg5+ 49. Kh3 Qcc1 50. Qd4+ e5 51. Qxe5+) 45. Qxd2 f5 46. Qc3+ Kf7 47. a5 Ke7 48. a6 Kd7 49. a7 Kc6 { Black resigns. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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