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Puzzles (3 cohencoins award for each match):

Puzzle mEzjo: 378

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/ua8NFdN6"] [Date "2025.09.17"] [White "Graysen"] [Black "Wesley"] [Result "1-0"] [UTCDate "2025.09.17"] [UTCTime "20:03:35"] [WhiteElo "1396"] [BlackElo "1497"] [WhiteRatingDiff "+15"] [BlackRatingDiff "-11"] [WhiteTitle "🏯"] [BlackTitle "GM⚜"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B30"] [Opening "Sicilian Defense: Old Sicilian"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 c5 2. Nf3 Nc6 { B30 Sicilian Defense: Old Sicilian } 3. Bc4?! { (0.53 → -0.08) Inaccuracy. Bb5 was best. } (3. Bb5) 3... Nf6 4. Ng5? { (0.04 → -1.43) Mistake. Nc3 was best. } (4. Nc3 e6 5. Bb5 Nd4 6. e5 Ng8 7. O-O a6 8. Bd3 d6 9. b3 dxe5 10. Nxe5 Qc7) 4... d5?? { (-1.43 → 0.21) Blunder. e6 was best. } (4... e6 5. Nc3) 5. exd5 Nxd5?? { (0.15 → 3.90) Blunder. Na5 was best. } (5... Na5 6. d3 a6 7. Nc3 h6 8. Nge4 Nxe4 9. Nxe4 b5 10. Bb3 Nxb3 11. axb3 Qxd5 12. c4) 6. Nf3?? { (3.90 → -0.84) Blunder. Nxf7 was best. } (6. Nxf7 Kxf7) 6... Bg4 7. O-O g6?! { (-0.80 → -0.07) Inaccuracy. a6 was best. } (7... a6 8. Nc3 Nf6 9. Be2 Qc7 10. d3 e6 11. h3 Bh5 12. Nd2 Bxe2 13. Qxe2 Be7 14. Nf3) 8. d3 Bg7 9. Nc3? { (-0.48 → -1.88) Mistake. h3 was best. } (9. h3 Bxf3) 9... Bxf3?? { (-1.88 → 0.05) Blunder. Nxc3 was best. } (9... Nxc3 10. bxc3 Ne5 11. Bb5+ Kf8 12. d4 Bxf3 13. gxf3 cxd4 14. cxd4 Qxd4 15. Rb1 Qxd1 16. Rxd1) 10. Qxf3 Nxc3?? { (0.15 → 5.00) Blunder. Nf6 was best. } (10... Nf6 11. Be3 Rc8 12. Ne4 O-O 13. c3 Nxe4 14. Qxe4 Na5 15. Rad1 Qc7 16. a3 Nxc4 17. dxc4) 11. Qxf7+ Kd7 12. bxc3 Bxc3 13. Qd5+?? { (5.23 → 0.13) Blunder. Rb1 was best. } (13. Rb1 b6 14. Bf4 Nd4 15. Be5 Qg8 16. Bxd4 Bxd4 17. Qf3 Qc8 18. Rbe1 e5 19. Qf7+ Kd6) 13... Ke8?? { (0.13 → 4.29) Blunder. Kc7 was best. } (13... Kc7 14. Rb1 Qxd5 15. Bxd5 Rad8 16. Bf3 Rhf8 17. Be3 b6 18. Rb3 Bd4 19. Bd2 Bf6 20. Be4) 14. Qf7+ Kd7 15. Be6+?? { (4.85 → 1.39) Blunder. Rb1 was best. } (15. Rb1 b6 16. Bf4 Nd4 17. Be5 Qg8 18. Bxd4 Qxf7 19. Bxh8 Qxc4 20. dxc4 Rxh8 21. g3 h5) 15... Kd6?? { (1.39 → 4.17) Blunder. Kc7 was best. } (15... Kc7 16. Bf4+ Be5 17. Bxe5+ Nxe5 18. Qg7 Nc6 19. Rae1 Qd4 20. Qh6 Rad8 21. Bb3 a6 22. Re4) 16. Bf4+ Be5 17. Rfe1? { (3.85 → 1.96) Mistake. Rae1 was best. } (17. Rae1) 17... Bxf4?? { (1.96 → 13.00) Blunder. Rf8 was best. } (17... Rf8 18. Bxe5+ Nxe5 19. Qg7 Rf6 20. Bb3 Qh8 21. Qh6 Raf8 22. Qh3 Nc6 23. Ba4 e5 24. Bxc6) 18. Qxf4+ Ne5 19. Qxe5+ Kc6 20. Rab1 Rf8?! { (11.33 → Mate in 3) Checkmate is now unavoidable. Qd4 was best. } (20... Qd4) 21. Bd5+? { (Mate in 3 → 8.41) Lost forced checkmate sequence. Qe4+ was best. } (21. Qe4+ Kd6 22. Qd5+ Kc7 23. Rxb7#) 21... Qxd5 22. Qxe7 Qxa2? { (8.84 → Mate in 5) Checkmate is now unavoidable. Rfe8 was best. } (22... Rfe8 23. Qxb7+ Kd6 24. Qxh7 Qe6 25. Rf1 Rab8 26. Rxb8 Rxb8 27. d4 Qxa2 28. Qxg6+ Kd7 29. c3) 23. Qxb7+ Kd6 24. Qe7+ Kc6 25. Qe6+?? { (Mate in 5 → 1.99) Lost forced checkmate sequence. Rb7 was best. } (25. Rb7 Qf7 26. Rc7+ Kb5 27. Qxc5+ Ka4 28. Ra1+ Qa2 29. Rxa2#) 25... Qxe6 26. Rxe6+ Kd5 27. Re4?? { (2.83 → 0.82) Blunder. Ra6 was best. } (27. Ra6) 27... Rab8? { (0.82 → 2.18) Mistake. Rfb8 was best. } (27... Rfb8 28. Rxb8 Rxb8 29. Kf1 Rb2 30. Rc4 Rb4 31. Rc3 Rb1+ 32. Ke2 Ra1 33. Rb3 Kc6 34. Rb8) 28. c4+ Kd6 29. Rbe1 Rb2?! { (2.35 → 3.13) Inaccuracy. Rf7 was best. } (29... Rf7) 30. Re6+? { (3.13 → 1.60) Mistake. Re7 was best. } (30. Re7 Rb1) 30... Kd7?? { (1.60 → 5.14) Blunder. Kc7 was best. } (30... Kc7 31. f3) 31. Re7+ Kd8 32. f3 a5 33. Rxh7 a4 34. Ra7 Ra2 35. Ra8+ Kd7 36. Rxf8 a3 37. Rf7+ Kc6?! { (57.87 → Mate in 1) Checkmate is now unavoidable. Kd8 was best. } (37... Kd8 38. Re6 Ra1+ 39. Kf2 Ra2+ 40. Kg3 Rd2 41. Rxg6 Re2 42. Ra7 a2 43. Rg8+ Re8 44. Rxe8+) 38. Re6# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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