Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/OiyJ8vDd"]
[Date "2025.10.27"]
[White "ChessMasterPlayer"]
[Black "Drew"]
[Result "0-1"]
[UTCDate "2025.10.27"]
[UTCTime "23:04:15"]
[WhiteElo "1457"]
[BlackElo "1612"]
[WhiteRatingDiff "-6"]
[BlackRatingDiff "+6"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "D02"]
[Opening "Queen's Pawn Game: Zukertort Variation"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. d4 d5 2. Nf3 { D02 Queen's Pawn Game: Zukertort Variation } Bf5 3. Bf4 Nf6 4. e3 e6 5. Nc3 Nc6 6. Bd3 Bg6 7. Bxg6 hxg6 8. O-O Bd6 9. Bxd6 Qxd6 10. Qd3 Nb4?! { (-0.33 → 0.57) Inaccuracy. O-O-O was best. } (10... O-O-O 11. h3) 11. Qb5+ Nc6 12. Qxb7 Rb8 13. Qa6 Kd7?? { (0.82 → 5.38) Blunder. Nxd4 was best. } (13... Nxd4 14. Qa4+ Nc6 15. Nb5 Qd7 16. c4 a6 17. Qxa6 e5 18. Rfd1 O-O 19. Qa4 Ra8 20. Qc2) 14. Nb5 Rxb5 15. Qxb5 g5 16. Ne5+ Kc8 17. Nxf7?? { (10.95 → Mate in 1) Checkmate is now unavoidable. Qa6+ was best. } (17. Qa6+) 17... Qxh2# { Black wins by checkmate. } 0-1