Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/Jy9r6A49"]
[Date "2026.02.21"]
[White "Mark2"]
[Black "Eli4"]
[Result "1-0"]
[UTCDate "2026.02.21"]
[UTCTime "00:33:30"]
[WhiteElo "1177"]
[BlackElo "733"]
[WhiteRatingDiff "+2"]
[BlackRatingDiff "-2"]
[WhiteTitle "࿄"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C41"]
[Opening "Philidor Defense"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 e5 2. Nf3 d6 { C41 Philidor Defense } 3. Nc3 Nf6 4. g3 Nc6 5. Bg2 Be6 6. O-O Be7 7. Ng5 Qd7?! { (0.22 → 1.09) Inaccuracy. Bg4 was best. } (7... Bg4 8. f3 Bd7 9. d3 h6 10. Nh3 Be6 11. f4 Bg4 12. Qd2 Nd4 13. Nf2 Bf3 14. Nfd1) 8. Nxe6 Qxe6?! { (0.96 → 1.80) Inaccuracy. fxe6 was best. } (8... fxe6 9. Ne2) 9. Nb5?! { (1.80 → 0.98) Inaccuracy. Nd5 was best. } (9. Nd5 Qd7 10. Ne3 h5 11. c3 h4 12. d4 g6 13. Nd5 Nd8 14. Nxf6+ Bxf6 15. f4 Bg7) 9... O-O?? { (0.98 → 7.17) Blunder. Qd7 was best. } (9... Qd7 10. d4) 10. Nxc7 Bd8 11. Nxe6 Bc7 12. Nxf8 Rxf8 13. d3 Ba5 14. Bh6 Nb4 15. Bxg7 Bb6?! { (12.10 → Mate in 6) Checkmate is now unavoidable. Kxg7 was best. } (15... Kxg7 16. c3 Nc6 17. b4 Bb6 18. Rb1 Rd8 19. a4 Bc7 20. Qb3 Ne7 21. Qc4 Bb8 22. Qb5) 16. Bxf8?! { (Mate in 6 → 18.00) Lost forced checkmate sequence. Bxf6 was best. } (16. Bxf6 Bxf2+ 17. Rxf2 Ra8 18. Qg4+ Kf8 19. Qg7+ Ke8 20. Bh3 Rd8 21. Qg8#) 16... Bxf2+ 17. Rxf2 Nxe4?! { (22.78 → Mate in 6) Checkmate is now unavoidable. Kxf8 was best. } (17... Kxf8 18. Rxf6) 18. Qg4+ Ng5 19. Qxg5+ Kxf8 20. Qh5 Nxc2 21. Qxf7# { White wins by checkmate. } 1-0