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Puzzles (3 cohencoins award for each match):

Puzzle I9xvc: 999999999

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/okjByyqs"] [Date "2025.10.01"] [White "xavi"] [Black "BENJAMIN4"] [Result "0-1"] [UTCDate "2025.10.01"] [UTCTime "23:44:02"] [WhiteElo "1719"] [BlackElo "1700"] [WhiteRatingDiff "-6"] [BlackRatingDiff "+6"] [WhiteTitle "GM🥉"] [BlackTitle "🌊"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B01"] [Opening "Scandinavian Defense: Main Line"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 d5?! { (0.33 → 0.87) Inaccuracy. c5 was best. } (1... c5 2. Nf3 d6 3. Nc3 e5 4. Bc4 Be7 5. d3 Nc6 6. O-O h6 7. Nd5 Nf6 8. Nxf6+) 2. exd5 Qxd5 3. Nc3 Qa5 { B01 Scandinavian Defense: Main Line } 4. Nf3 Nf6 5. Bc4 Bf5 6. O-O e6 7. d3 Bd6 8. Bg5 Nbd7 9. Nd4?? { (0.68 → -6.53) Blunder. Nb5 was best. } (9. Nb5 a6 10. Bd2 Qb6 11. Nxd6+ cxd6 12. a4 Qc7 13. b4 O-O 14. Bb3 h6 15. a5 Bg6) 9... Bg4 10. Qd2 Qe5 11. Bxf6?? { (-5.77 → Mate in 1) Checkmate is now unavoidable. f3 was best. } (11. f3 h6 12. g3 hxg5 13. Nb3 Bh5 14. d4 Qf5 15. Bd3 Qh3 16. Nb5 Bxg3 17. hxg3 Qxg3+) 11... Nxf6? { (Mate in 1 → -8.22) Lost forced checkmate sequence. Qxh2# was best. } (11... Qxh2#) 12. Nb3? { (-8.22 → Mate in 1) Checkmate is now unavoidable. f4 was best. } (12. f4 Qxd4+ 13. Kh1 a6 14. Rae1 Bf5 15. Ne2 Qb6 16. Ng3 Kf8 17. a4 c6 18. Ba2 Qd8) 12... O-O?? { (Mate in 1 → 0.00) Lost forced checkmate sequence. Qxh2# was best. } (12... Qxh2#) 13. h3?? { (0.00 → Mate in 1) Checkmate is now unavoidable. f4 was best. } (13. f4 Qh5 14. h3 a6 15. a4 Bf5 16. Rae1 Qg6 17. Rf3 Rab8 18. Qf2 h5 19. Kh1 Qh6) 13... Qh2# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting