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Puzzles (3 cohencoins award for each match):

Puzzle r4DRN: 881

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/enTNMM0a"] [Date "2025.10.31"] [White "RoWaN"] [Black "Benton"] [Result "0-1"] [UTCDate "2025.10.31"] [UTCTime "20:02:47"] [WhiteElo "1666"] [BlackElo "1997"] [WhiteRatingDiff "-2"] [BlackRatingDiff "+2"] [WhiteTitle "NM🎼"] [BlackTitle "GM☾"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C45"] [Opening "Scotch Game: Classical Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 { C45 Scotch Game: Classical Variation } 5. Nxc6 bxc6 6. Bc4?! { (0.43 → -0.23) Inaccuracy. Nc3 was best. } (6. Nc3 Nf6 7. Bd3 d5 8. O-O O-O 9. Bg5 h6 10. Bxf6 Qxf6 11. exd5 cxd5 12. Nxd5 Qxb2) 6... d6?! { (-0.23 → 0.36) Inaccuracy. Qh4 was best. } (6... Qh4 7. O-O Nf6 8. Nd2 O-O 9. Nf3 Qxe4 10. Bd3 Qe6 11. Re1 Qd6 12. c4 Ng4 13. Re2) 7. O-O Nf6 8. Nc3 O-O 9. Bg5 h6 10. Bh4 g5?! { (0.35 → 0.87) Inaccuracy. Qe7 was best. } (10... Qe7 11. Re1 a5 12. e5 dxe5 13. Qf3 g5 14. Bg3 Bg4 15. Qxc6 Qd6 16. Bb5 Bd4 17. Qxd6) 11. Bg3 Bg4 12. Qd2?! { (1.11 → 0.58) Inaccuracy. Qd3 was best. } (12. Qd3 Nh5 13. Na4 Bb6 14. Rae1 Re8 15. Nxb6 axb6 16. f4 Be6 17. Bxe6 Rxe6 18. fxg5 Nxg3) 12... Bb4 13. a3? { (0.89 → -0.18) Mistake. f3 was best. } (13. f3 Be6 14. Bxe6 fxe6 15. Qd3 Bc5+ 16. Bf2 Bxf2+ 17. Rxf2 Nh5 18. Qc4 Qd7 19. Rd1 a5) 13... Bxc3 14. Qxc3 Nxe4 15. Qd3?! { (-0.07 → -0.98) Inaccuracy. Qa5 was best. } (15. Qa5) 15... Nc5?? { (-0.98 → 8.25) Blunder. Bf5 was best. } (15... Bf5 16. Qf3) 16. Qd4?? { (8.25 → 0.39) Blunder. Qg6+ was best. } (16. Qg6+ Kh8) 16... Be6?! { (0.39 → 1.00) Inaccuracy. Bf5 was best. } (16... Bf5 17. f4 g4 18. Rae1 a5 19. Bf2 Rb8 20. Qc3 Ne4 21. Qxa5 d5 22. Bd3 Re8 23. Bxe4) 17. b4 Nd7?! { (0.94 → 1.92) Inaccuracy. Bxc4 was best. } (17... Bxc4 18. Qxc4) 18. Bd3?? { (1.92 → 0.11) Blunder. Bxe6 was best. } (18. Bxe6 fxe6 19. Qe4 Qe7 20. Qg6+ Qg7 21. Qxe6+ Rf7 22. Qe4 h5 23. Qxc6 Nb6 24. f3 Raf8) 18... Qf6?? { (0.11 → 1.94) Blunder. c5 was best. } (18... c5 19. bxc5) 19. Qe4 Qg7 20. Rad1?? { (1.95 → 0.00) Blunder. Qxc6 was best. } (20. Qxc6 Rac8 21. f4 Nb6 22. Rae1 Bd5 23. Qb5 f5 24. fxg5 Qd4+ 25. Kh1 f4 26. Bf2 Qg7) 20... d5? { (0.00 → 1.32) Mistake. Bd5 was best. } (20... Bd5 21. Qf5 Be6 22. Qa5 Nb6 23. f4 f5 24. Qa6 Bc8 25. Qa5) 21. Qf3?! { (1.32 → 0.56) Inaccuracy. Qe2 was best. } (21. Qe2 Rfe8) 21... Rac8?? { (0.56 → 2.31) Blunder. Ne5 was best. } (21... Ne5) 22. Rfe1 Nf6?? { (1.94 → 6.77) Blunder. Qf6 was best. } (22... Qf6 23. Qe3) 23. Be5 Bg4 24. Qxf6 Qxf6 25. Bxf6 Bxd1 26. Rxd1 Rfe8 27. Bf5 Rb8 28. h3 Re2 29. Bd3 Re6 30. Bd4 Ra8 31. Bf5 Re2 32. Kf1 Rae8 33. Bd3 R2e6 34. Bf5 Rd6 35. Bxa7 Ra8 36. Bc5 Rf6 37. Bg4 Rxa3 38. b5 Ra5 39. Be2?! { (6.30 → 3.89) Inaccuracy. Bd4 was best. } (39. Bd4 Rf4 40. bxc6 f5 41. Bf3 Rxf3 42. gxf3 Ra6 43. f4 Rxc6 44. c3 Rc4 45. Ra1 Kf7) 39... cxb5?! { (3.89 → 5.00) Inaccuracy. Re6 was best. } (39... Re6 40. Bg4) 40. Bb4?! { (5.00 → 3.83) Inaccuracy. Rxd5 was best. } (40. Rxd5 Ra1+) 40... Ra4 41. Bc3 Rd6 42. Bxb5 Ra2 43. Be5 Re6?! { (4.16 → 5.55) Inaccuracy. Rd8 was best. } (43... Rd8 44. Bd3) 44. Rxd5 f6 45. Rd8+ Kg7 46. Rd7+ Kg6 47. Bd3+ Kh5 48. g4+ Kh4 49. Bg3+?? { (6.92 → 0.42) Blunder. Bd4 was best. } (49. Bd4 Kxh3 50. Bf5 Re5 51. Bxe5 fxe5 52. Rxc7 Ra1+ 53. Ke2 Ra6 54. Rc3+ Kh2 55. Rc5 e4) 49... Kxh3 50. Bc4?? { (0.41 → Mate in 2) Checkmate is now unavoidable. Be2 was best. } (50. Be2 Rxc2) 50... Ra1+ 51. Rd1 Rxd1# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting