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Puzzles (3 cohencoins award for each match):

Puzzle fw93X: 671

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/5adBELRY"] [Date "2026.03.27"] [White "Mark2"] [Black "Eli4"] [Result "1-0"] [UTCDate "2026.03.27"] [UTCTime "23:12:10"] [WhiteElo "1204"] [BlackElo "729"] [WhiteRatingDiff "+1"] [BlackRatingDiff "-2"] [WhiteTitle "࿄"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C47"] [Opening "Four Knights Game: Scotch Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nf6 3. Nc3?! { (0.71 → 0.14) Inaccuracy. Nxe5 was best. } (3. Nxe5 d6) 3... Nc6 4. d4 { C47 Four Knights Game: Scotch Variation } d5? { (0.13 → 1.35) Mistake. exd4 was best. } (4... exd4 5. Nxd4) 5. exd5?! { (1.35 → 0.76) Inaccuracy. Nxe5 was best. } (5. Nxe5 Nxe4 6. Nxe4 dxe4 7. Bb5 a6 8. Ba4 Qd6 9. Nxc6 Bd7 10. Qe2 Qe6 11. O-O Bxc6) 5... exd4 6. dxc6 dxc3?! { (0.92 → 1.48) Inaccuracy. dxc3 was best. } (6... dxc3 7. Qxd8+ Kxd8 8. Bc4 cxb2 9. Bxb2 Bb4+ 10. Kf1 Ke7 11. Rb1 b5 12. Bxb5 Bc5 13. Be5) 7. Ne5?? { (1.48 → -1.57) Blunder. Qxd8+ was best. } (7. Qxd8+ Kxd8 8. Bc4 cxb2 9. Bxb2 Bb4+ 10. Kf1 Re8 11. Bxf7 Re7 12. Rd1+ Bd6 13. Bb3 a5) 7... Ne4?? { (-1.57 → 6.64) Blunder. Qxd1+ was best. } (7... Qxd1+ 8. Kxd1) 8. Bc4?? { (6.64 → -0.20) Blunder. Qxd8+ was best. } (8. Qxd8+ Kxd8) 8... Bc5?? { (-0.20 → 5.48) Blunder. Qxd1+ was best. } (8... Qxd1+ 9. Kxd1) 9. Nxf7?? { (5.48 → Mate in 3) Checkmate is now unavoidable. Qxd8+ was best. } (9. Qxd8+) 9... Nxf2?? { (Mate in 3 → Mate in 1) Lost forced checkmate sequence. Bxf2+ was best. } (9... Bxf2+ 10. Ke2 Bg4+ 11. Kf1 Qxd1#) 10. Qe2+?? { (Mate in 1 → 5.62) Lost forced checkmate sequence. Qxd8# was best. } (10. Qxd8#) 10... Ne4?! { (5.62 → 14.39) Inaccuracy. Qe7 was best. } (10... Qe7 11. Qxe7+) 11. Nxd8 Be6 12. Bxe6 g5?! { (15.30 → Mate in 7) Checkmate is now unavoidable. cxb2 was best. } (12... cxb2 13. Bxb2) 13. Nf7?! { (Mate in 7 → 20.57) Lost forced checkmate sequence. Qxe4 was best. } (13. Qxe4 Bf2+ 14. Kxf2 Rxd8 15. Bb3+ Kf8 16. Qf5+ Kg7 17. Qf7+ Kh6 18. Qf6+ Kh5 19. Qxg5#) 13... Ng3 14. Qd3 Nxh1 15. Qd7+ Kf8 16. Nxh8 h5 17. Qf7# { White wins by checkmate. } 1-0
Computer analysisMove timesCrosstableFEN & PGN
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