Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/7RjrUMgl"]
[Date "2026.06.16"]
[White "Mark-David"]
[Black "Archer1"]
[Result "0-1"]
[UTCDate "2026.06.16"]
[UTCTime "20:10:04"]
[WhiteElo "1137"]
[BlackElo "1267"]
[WhiteRatingDiff "-24"]
[BlackRatingDiff "+12"]
[WhiteTitle "GM"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C00"]
[Opening "French Defense: Normal Variation"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 e6 2. d4 { C00 French Defense: Normal Variation } e5? { (0.54 → 2.06) Mistake. d5 was best. } (2... d5 3. Nc3) 3. dxe5 Bc5 4. Nf3 f6?! { (2.62 → 4.03) Inaccuracy. Nc6 was best. } (4... Nc6 5. Nc3) 5. exf6?! { (4.03 → 2.99) Inaccuracy. Bc4 was best. } (5. Bc4 d6) 5... gxf6? { (2.99 → 5.41) Mistake. Nxf6 was best. } (5... Nxf6 6. e5) 6. Bb5 f5?! { (4.49 → 7.25) Inaccuracy. a6 was best. } (6... a6 7. Ba4 Nc6 8. Nc3 Qe7 9. O-O Qg7 10. Nd5 d6 11. b4 Ba7 12. Bb2 Bg4 13. Qd3) 7. exf5 Nh6 8. Bxh6 Qf6 9. Bg5 Qxf5 10. Nc3 Be7 11. O-O Bxg5 12. Re1+ Kf8 13. Ne4 Bh6 14. Qd3 Rg8 15. Ba4 Qg6 16. Qc4?? { (11.68 → Mate in 1) Checkmate is now unavoidable. Nh4 was best. } (16. Nh4 Qe6 17. Qf3+ Qf7 18. Nf6 Bg5 19. Re8+ Qxe8 20. Nxe8+ Kxe8 21. Re1+ Kd8 22. Qf7 c6) 16... Qxg2# { Black wins by checkmate. } 0-1