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Puzzles (3 cohencoins award for each match):

Puzzle B5guE: 938

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/Vjk3Z0k5"] [Date "2026.04.15"] [White "Ioana"] [Black "Wesley"] [Result "0-1"] [UTCDate "2026.04.15"] [UTCTime "20:32:01"] [WhiteElo "833"] [BlackElo "1476"] [WhiteRatingDiff "+0"] [BlackRatingDiff "+0"] [BlackTitle "GM⚜"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B20"] [Opening "Sicilian Defense: Bowdler Attack"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 c5 2. Bc4 { B20 Sicilian Defense: Bowdler Attack } Nc6 3. d3 Nf6 4. Ke2?? { (-0.08 → -1.66) Blunder. Nf3 was best. } (4. Nf3 e6) 4... g6?! { (-1.66 → -0.92) Inaccuracy. b5 was best. } (4... b5 5. Bb3 e6 6. Ke1 d5 7. c3 Be7 8. Bf4 e5 9. Bg5 dxe4 10. Bxf6 Bxf6 11. dxe4) 5. Bg5?! { (-0.92 → -1.70) Inaccuracy. Nc3 was best. } (5. Nc3 Bg7) 5... Bg7 6. Nf3 O-O 7. Qc1 Ng4? { (-2.22 → -0.68) Mistake. d5 was best. } (7... d5 8. exd5) 8. h3 d6?? { (-0.76 → 6.69) Blunder. Nge5 was best. } (8... Nge5 9. Nxe5 Nxe5 10. Bd5 Qe8 11. Bh6 e6 12. Bb3 b6 13. Ke1 Bxh6 14. Qxh6 f5 15. Nc3) 9. e5?? { (6.69 → -4.08) Blunder. hxg4 was best. } (9. hxg4) 9... Ncxe5?? { (-4.08 → 1.95) Blunder. Ngxe5 was best. } (9... Ngxe5 10. Nxe5) 10. Nxe5?? { (1.95 → -4.01) Blunder. hxg4 was best. } (10. hxg4 Nxg4) 10... Nxe5 11. f4?! { (-4.62 → -6.51) Inaccuracy. Nc3 was best. } (11. Nc3 Nxc4) 11... Nxc4 12. dxc4 Re8 13. Nc3 Bf5 14. g4 Bxg4+?? { (-6.76 → 2.13) Blunder. Be6 was best. } (14... Be6 15. Kd3) 15. Ke3?? { (2.13 → -9.22) Blunder. hxg4 was best. } (15. hxg4 Qd7) 15... Qd7?? { (-9.22 → -0.06) Blunder. Bd7 was best. } (15... Bd7 16. Kf2) 16. Ne4?? { (-0.06 → -9.83) Blunder. hxg4 was best. } (16. hxg4 Qxg4 17. Qd1 Qe6+ 18. Kf3 Bxc3 19. bxc3 Qxc4 20. Qd3 Qxd3+ 21. cxd3 f6 22. Bh4 Kf7) 16... Qe6?? { (-9.83 → -3.07) Blunder. Bd4+ was best. } (16... Bd4+ 17. Kd2) 17. Kd3?? { (-3.07 → -13.02) Blunder. hxg4 was best. } (17. hxg4 f5 18. gxf5 gxf5 19. Kd2 fxe4 20. Qg1 Qxc4 21. Re1 Qb4+ 22. Kd1 Qxb2 23. Qh2 h6) 17... Bf6?? { (-13.02 → -3.10) Blunder. d5 was best. } (17... d5 18. Qe3 dxe4+ 19. Kd2 Bf3 20. c3 h6 21. Kc2 hxg5 22. fxg5 Bxh1 23. Rxh1 Qxc4 24. Re1) 18. Ke3?? { (-3.10 → -14.84) Blunder. hxg4 was best. } (18. hxg4 d5) 18... Bxg5?! { (-14.84 → -6.48) Inaccuracy. Bd4+ was best. } (18... Bd4+ 19. Kd3 Be2+ 20. Kd2 Qxe4 21. f5 Bxc4 22. Qe1 Qxf5 23. Kc1 Qxg5+ 24. Kb1 Bd5 25. Rh2) 19. hxg4 Bxf4+?? { (-6.82 → -0.41) Blunder. Bf6 was best. } (19... Bf6) 20. Kxf4 Qe5+?? { (-0.89 → 0.82) Blunder. f5 was best. } (20... f5) 21. Kf3 f5 22. gxf5 Qxf5+ 23. Ke3? { (0.52 → -0.99) Mistake. Qf4 was best. } (23. Qf4 Rf8 24. Qxf5 Rxf5+ 25. Kg3 Raf8 26. Rae1 h5 27. Re2 Rf4 28. Rh4 Rxh4 29. Kxh4 Rf4+) 23... Rf8 24. Kd3?? { (-1.23 → -8.75) Blunder. Qf1 was best. } (24. Qf1) 24... Qf3+?? { (-8.75 → 0.54) Blunder. d5 was best. } (24... d5 25. Qe3) 25. Kd2?? { (0.54 → -9.14) Blunder. Qe3 was best. } (25. Qe3 Qxe3+) 25... Qxe4 26. Kd1? { (-8.84 → Mate in 9) Checkmate is now unavoidable. Qg1 was best. } (26. Qg1 Qxc4 27. Re1 Qf4+ 28. Qe3 Qxe3+ 29. Rxe3 Rf7 30. Rf1 Rxf1 31. Rxe7 Ra1 32. Rxb7 Rxa2) 26... Rf2?! { (Mate in 9 → -18.54) Lost forced checkmate sequence. Qxh1+ was best. } (26... Qxh1+ 27. Kd2 Rf2+ 28. Kd3 Qf3+ 29. Qe3 Qf5+ 30. Qe4 Rf3+ 31. Kd2 Qxe4 32. Re1 Rf2+ 33. Re2) 27. Qb1?! { (-18.54 → Mate in 1) Checkmate is now unavoidable. Qd2 was best. } (27. Qd2 Qxh1+) 27... Qxh1# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting