Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/2OlXd3LJ"]
[Date "2025.10.18"]
[White "Ivan"]
[Black "Vladimir"]
[Result "0-1"]
[UTCDate "2025.10.18"]
[UTCTime "17:03:19"]
[WhiteElo "1432"]
[BlackElo "1311"]
[WhiteRatingDiff "-52"]
[BlackRatingDiff "+31"]
[WhiteTitle "NM"]
[BlackTitle "GM🐧"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "D02"]
[Opening "Queen's Pawn Game: Symmetrical Variation"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. d4 d5 2. Nf3 Nf6 { D02 Queen's Pawn Game: Symmetrical Variation } 3. Nc3 Nc6 4. Bg5 Bg4 5. e3 h6?! { (-0.25 → 0.38) Inaccuracy. Ne4 was best. } (5... Ne4 6. Bh4) 6. Be2?? { (0.38 → -7.52) Blunder. Bxf6 was best. } (6. Bxf6) 6... hxg5 7. Nxg5 Bxe2 8. Qxe2 Nd7 9. O-O Rh7?? { (-7.20 → 6.98) Blunder. e6 was best. } (9... e6) 10. Qf3?? { (6.98 → 0.02) Blunder. Nxh7 was best. } (10. Nxh7) 10... Nf6 11. e4?? { (0.00 → -6.00) Blunder. Nxh7 was best. } (11. Nxh7 Nxh7 12. Qxd5 Qxd5 13. Nxd5 O-O-O 14. Nc3 Nf6 15. Rad1 Re8 16. h3 e5 17. dxe5 Nxe5) 11... Rh6?! { (-6.00 → -3.84) Inaccuracy. Rh5 was best. } (11... Rh5) 12. exd5 Qd6 13. dxc6?? { (-3.62 → Mate in 1) Checkmate is now unavoidable. g3 was best. } (13. g3) 13... Qxh2# { Black wins by checkmate. } 0-1