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Puzzles (3 cohencoins award for each match):

Puzzle qb9Zq: 999999999

GM Sebastian1 (1254) +26
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/ZH5QNWpt"] [Date "2025.08.22"] [White "Walker"] [Black "Sebastian1"] [Result "0-1"] [UTCDate "2025.08.22"] [UTCTime "23:21:02"] [WhiteElo "1473"] [BlackElo "1254"] [WhiteRatingDiff "-9"] [BlackRatingDiff "+26"] [WhiteTitle "⚡"] [BlackTitle "GM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C40"] [Opening "King's Pawn Game: Busch-Gass Gambit"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Nf3 Bc5? { (0.41 → 1.86) Mistake. Nc6 was best. } { C40 King's Pawn Game: Busch-Gass Gambit } (2... Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Ba4 Be7 7. Nxe5 Nxe5 8. Rxe5 O-O 9. Bb3) 3. Nxe5 Bb6 4. Bc4 Qf6?? { (2.19 → 5.15) Blunder. Qg5 was best. } (4... Qg5 5. Bxf7+ Kf8 6. Bxg8 Kxg8 7. d4 Qxg2 8. Qf3 Qxf3 9. Nxf3 Nc6 10. c3 d6 11. Rg1) 5. f3?? { (5.15 → -3.84) Blunder. d4 was best. } (5. d4 Nh6) 5... Qxe5 6. c3 Qc5 7. b3?? { (-2.82 → Mate in 1) Checkmate is now unavoidable. Qe2 was best. } (7. Qe2 Qe7 8. d4 d6 9. Na3 Nf6 10. Bg5 h6 11. Bh4 Bd7 12. b4 d5 13. exd5 Qxe2+) 7... Qf2# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting