Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/xkl2aC3Z"]
[Date "2025.09.26"]
[White "Islomjon"]
[Black "LEO2"]
[Result "0-1"]
[UTCDate "2025.09.26"]
[UTCTime "23:16:22"]
[WhiteElo "1376"]
[BlackElo "1394"]
[WhiteRatingDiff "-10"]
[BlackRatingDiff "+15"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "B23"]
[Opening "Sicilian Defense: Closed, Traditional"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 c5 2. Nc3 Nc6 { B23 Sicilian Defense: Closed, Traditional } 3. Nf3 d6 4. d3 e5 5. Be2 Nd4 6. Nxd4 exd4 7. Nd5 Be6 8. O-O Nf6 9. Nxf6+ Qxf6 10. Bf3 c4? { (0.90 → 2.33) Mistake. Be7 was best. } (10... Be7 11. Bd2 O-O 12. g3 c4 13. dxc4 Bxc4 14. Re1 Qe5 15. Be2 Bxe2 16. Qxe2 Rfc8 17. c3) 11. dxc4 Bxc4 12. Re1 Qg6?? { (2.53 → 6.77) Blunder. Be6 was best. } (12... Be6 13. Qd3) 13. e5 Be6 14. Bxb7 Bh3 15. g3 Rb8 16. Bc6+ Kd8 17. exd6 Qxd6 18. Ba4?? { (8.53 → 3.70) Blunder. Qf3 was best. } (18. Qf3 Qf6 19. Qxf6+ gxf6 20. Bf4 Bd6 21. Bxd6 Rb6 22. Be7+ Kc8 23. Bd5 Bg4 24. Bc4 Re8) 18... Qd5 19. c3?? { (4.15 → Mate in 1) Checkmate is now unavoidable. f3 was best. } (19. f3 Bc5) 19... Qg2# { Black wins by checkmate. } 0-1