Puzzles (3 cohencoins award for each match):
FEN
[Event "MrCohenOS Arena"]
[Site "https://cohenchessclub.com/eCCvkeLX"]
[Date "2026.09.30"]
[White "PJ"]
[Black "Trekker"]
[Result "1-0"]
[UTCDate "2026.09.30"]
[UTCTime "20:34:46"]
[WhiteElo "1983"]
[BlackElo "1815"]
[WhiteRatingDiff "+4"]
[BlackRatingDiff "-4"]
[WhiteTitle "GM🐶"]
[BlackTitle "🎅"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "B03"]
[Opening "Alekhine Defense: Exchange Variation"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 { B03 Alekhine Defense: Exchange Variation } cxd6 6. Nf3 g6 7. Nc3 Bg7 8. Bd3?? { (1.16 → -0.56) Blunder. h3 was best. } (8. h3 O-O 9. Be2 Nc6 10. O-O Bf5 11. d5 Na5 12. Nd4 Naxc4 13. a4 a5 14. Nxf5 gxf5) 8... O-O?! { (-0.56 → 0.28) Inaccuracy. Bg4 was best. } (8... Bg4 9. Be3) 9. h4? { (0.28 → -0.91) Mistake. h3 was best. } (9. h3 Nc6) 9... e5? { (-0.91 → 0.18) Mistake. Bg4 was best. } (9... Bg4) 10. h5? { (0.18 → -0.97) Mistake. Bg5 was best. } (10. Bg5 Qe8) 10... exd4 11. Ne4 Re8? { (-0.62 → 0.67) Mistake. Nc6 was best. } (11... Nc6 12. h6 Bh8 13. Bg5 f6 14. Bh4 Bg4 15. Qb3 d5 16. cxd5 Na5 17. Qb5 Qxd5 18. O-O) 12. hxg6 fxg6 13. Qb3?? { (0.76 → -0.89) Blunder. Kf1 was best. } (13. Kf1 Bf5 14. Neg5 Qc8 15. Rxh7 Bxd3+ 16. Qxd3 Qxc4 17. Qxc4+ Nxc4 18. b3 Ne5 19. Nxd4 Nbc6) 13... d5 14. c5?? { (-0.59 → -3.31) Blunder. cxd5 was best. } (14. cxd5 Qxd5 15. Qxd5+ Nxd5 16. O-O Bf5 17. Re1 Nd7 18. a4 h6 19. Bd2 Kh7 20. a5 Rad8) 14... Nc4 15. Ng5?! { (-3.33 → -5.01) Inaccuracy. Bg5 was best. } (15. Bg5 Na5) 15... h6?? { (-5.01 → 0.73) Blunder. Na5 was best. } (15... Na5 16. Qc2) 16. Bxc4 hxg5?? { (0.71 → 7.20) Blunder. Re5 was best. } (16... Re5) 17. Bxd5+ Be6 18. Bxe6+ Kf8 19. Bxg5 Qa5+ 20. Kf1 Qa6+ 21. Bc4 b5?! { (15.70 → Mate in 6) Checkmate is now unavoidable. Qxc4+ was best. } (21... Qxc4+ 22. Qxc4) 22. Qf3+ Bf6 23. Bxf6 Nd7 24. Rh8# { White wins by checkmate. } 1-0