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Puzzles (3 cohencoins award for each match):

Puzzle L9aJE: 676

Ayaan (1363?) +24
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/2Che0sP2"] [Date "2025.09.05"] [White "Nathan4"] [Black "Ayaan"] [Result "0-1"] [UTCDate "2025.09.05"] [UTCTime "23:03:15"] [WhiteElo "1276"] [BlackElo "1363"] [WhiteRatingDiff "-10"] [BlackRatingDiff "+24"] [WhiteTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C50"] [Opening "Four Knights Game: Italian Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Bc5 { C50 Four Knights Game: Italian Variation } 5. O-O O-O 6. d3 d6 7. Bg5 Bg4 8. Nd5 h6?? { (0.43 → 2.96) Blunder. Nd4 was best. } (8... Nd4 9. Nxf6+ gxf6 10. Bh4 Bh5 11. Kh1 Kh8 12. Rg1 Nxf3 13. gxf3 c6 14. d4 Bxd4 15. Be2) 9. Nxf6+ gxf6 10. Be3? { (2.84 → 1.52) Mistake. Bxh6 was best. } (10. Bxh6) 10... Bxf3?? { (1.52 → 6.09) Blunder. f5 was best. } (10... f5 11. exf5) 11. Qxf3 Nd4?! { (6.00 → 8.94) Inaccuracy. f5 was best. } (11... f5) 12. Qg3+ Kh7 13. c3?? { (7.21 → -6.76) Blunder. Qh3 was best. } (13. Qh3 Ne2+ 14. Kh1 Nf4 15. Bxf4 exf4 16. Qf5+ Kg7 17. Qg4+ Kh7 18. Qxf4 Qe7 19. Qf5+ Kg7) 13... Ne2+ 14. Kh1 Nxg3+ 15. fxg3 Bxe3 16. Rxf6 Qxf6 17. d4 exd4 18. cxd4 Rg8 19. Re1 Qf2 20. Rd1?! { (-17.34 → Mate in 4) Checkmate is now unavoidable. Rf1 was best. } (20. Rf1 Qxb2) 20... Bf4?! { (Mate in 4 → -14.47) Lost forced checkmate sequence. Rxg3 was best. } (20... Rxg3 21. hxg3 Qxg3 22. Be6 fxe6 23. Re1 Qh4#) 21. gxf4?! { (-14.47 → Mate in 1) Checkmate is now unavoidable. Rf1 was best. } (21. Rf1 Qxd4) 21... Qxg2# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting