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Puzzles (3 cohencoins award for each match):

Puzzle a5oSc: 561

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/jIETwmc8"] [Date "2025.09.02"] [White "pAtrIcK5"] [Black "Isaac6"] [Result "0-1"] [UTCDate "2025.09.02"] [UTCTime "20:50:37"] [WhiteElo "1487"] [BlackElo "1769"] [WhiteRatingDiff "-2"] [BlackRatingDiff "+21"] [WhiteTitle "☣"] [BlackTitle "GM🔥"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C50"] [Opening "Italian Game: Rousseau Gambit"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nc6 3. Bc4 f5? { (0.29 → 1.50) Mistake. Nf6 was best. } { C50 Italian Game: Rousseau Gambit } (3... Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Bd3 Nd5 9. Nf3 Nf4 10. O-O) 4. exf5? { (1.50 → 0.08) Mistake. d4 was best. } (4. d4) 4... d5?! { (0.08 → 1.02) Inaccuracy. e4 was best. } (4... e4 5. Nd4) 5. Bb3?? { (1.02 → -2.01) Blunder. Bb5 was best. } (5. Bb5 Bd6 6. d4 exd4 7. Nxd4 Qe7+ 8. Be3 Bd7 9. O-O Nf6 10. Re1 O-O 11. Nc3 Qf7) 5... e4 6. Ng1 Bxf5 7. d4 Nf6?! { (-2.20 → -1.37) Inaccuracy. exd3 was best. } (7... exd3) 8. Bg5 Be7?! { (-1.57 → -0.81) Inaccuracy. h6 was best. } (8... h6 9. Bh4) 9. Ne2?! { (-0.81 → -1.68) Inaccuracy. Nc3 was best. } (9. Nc3 Be6 10. Nge2 Qd6 11. Nf4 O-O-O 12. Nxe6 Qxe6 13. Qd2 h6 14. Be3 g5 15. h3 Na5) 9... O-O?? { (-1.68 → 0.22) Blunder. Na5 was best. } (9... Na5) 10. O-O?? { (0.22 → -1.45) Blunder. Nbc3 was best. } (10. Nbc3 Be6 11. Nf4 Bf7 12. O-O Qd7 13. Bxf6 Bxf6 14. Nfxd5 Bxd4 15. Nb5 Bxd5 16. Nxd4 Bxb3) 10... h6?? { (-1.45 → 0.61) Blunder. Na5 was best. } (10... Na5 11. Ng3 Be6 12. Nc3 h6 13. Bxf6 Rxf6 14. Nh5 Rf7 15. f3 exf3 16. Rxf3 Nxb3 17. axb3) 11. Bh4?? { (0.61 → -1.82) Blunder. Bxf6 was best. } (11. Bxf6) 11... Na5 12. Nbc3 Nxb3 13. axb3 a5 14. Nf4?? { (-1.29 → -5.94) Blunder. Qd2 was best. } (14. Qd2 Bb4 15. Qe3 Ra6 16. h3 Rc6 17. Ng3 Bc8 18. Nge2 g5 19. Bg3 Nh5 20. Be5 Rg6) 14... g5 15. Ng6?! { (-5.91 → -9.09) Inaccuracy. Bg3 was best. } (15. Bg3 gxf4 16. Bxf4 Kh7 17. f3 Bg6 18. Qd2 h5 19. Bh6 Rf7 20. fxe4 Nxe4 21. Rxf7+ Bxf7) 15... Bxg6 16. Qe1 gxh4 17. g3 hxg3 18. hxg3 Bd6 19. Kg2 Bh5 20. Rh1 Bf3+ 21. Kg1 Bxh1 22. Kxh1 Ng4 23. Qe2 Nxf2+ 24. Kg2?! { (-21.05 → Mate in 8) Checkmate is now unavoidable. Kg1 was best. } (24. Kg1 Qg5) 24... Bxg3?! { (Mate in 8 → -13.00) Lost forced checkmate sequence. Qg5 was best. } (24... Qg5 25. Nxe4 Nxe4 26. Kg1 Nxg3 27. Qe6+ Kh8 28. Qe5+ Bxe5 29. dxe5 Ne4+ 30. Kh2 Rf2+ 31. Kh1) 25. Kxg3?! { (-13.00 → Mate in 4) Checkmate is now unavoidable. Qh5 was best. } (25. Qh5 Kh7) 25... Qg5+ 26. Kh2 Qh4+ 27. Kg2 Qh3+ 28. Kg1 Qh1# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting