Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/Aqwxvot1"]
[Date "2026.10.20"]
[White "Vincent3"]
[Black "Summer"]
[Result "0-1"]
[UTCDate "2026.10.20"]
[UTCTime "14:15:04"]
[WhiteElo "1414"]
[BlackElo "1412"]
[WhiteRatingDiff "-10"]
[BlackRatingDiff "+11"]
[WhiteTitle "GM"]
[BlackTitle "GM🐬"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C47"]
[Opening "Four Knights Game: Scotch Variation Accepted"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 { C47 Four Knights Game: Scotch Variation Accepted } 5. Nxd4 Nxd4?? { (0.04 → 1.60) Blunder. Bb4 was best. } (5... Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 O-O 9. O-O cxd5 10. Qf3 c5 11. Bg5 Bxc3 12. bxc3) 6. Qxd4 d6 7. e5? { (1.66 → 0.18) Mistake. Bf4 was best. } (7. Bf4 Be7 8. O-O-O O-O 9. f3 a6 10. g4 b5 11. Qd2 Be6 12. g5 Nh5 13. Be3 c6) 7... Ng4?! { (0.18 → 0.72) Inaccuracy. dxe5 was best. } (7... dxe5) 8. Be2?! { (0.72 → 0.11) Inaccuracy. exd6 was best. } (8. exd6 Qxd6 9. Qxd6 Bxd6 10. Nb5 Bf5 11. Nxd6+ cxd6 12. Bb5+ Ke7 13. O-O Ne5 14. Re1 a6) 8... Be7?? { (0.11 → 8.07) Blunder. dxe5 was best. } (8... dxe5 9. Qa4+) 9. Bxg4 Bxg4 10. Qxg4 dxe5 11. Qxg7 Bf6 12. Qg3 Qd6 13. O-O O-O-O 14. Ne4 Qd1 15. Nxf6 Qxc2 16. Qg4+ Kb8 17. b3 a6 18. Bg5 Rd4 19. Rfc1 Rxg4 20. Rxc2 Rxg5 21. Nd7+ Kc8 22. Rd1 Rd8 23. Rcd2 Rg7 24. Nb6+ cxb6 25. Rxd8+ Kc7 26. R8d7+ Kb8 27. Rc1 b5 28. Rcc7 Ka8 29. Rxb7 Rg6 30. Rbc7 Kb8 31. Rb7+ Kc8 32. Rxf7 Rc6 33. Ra7?? { (10.39 → Mate in 1) Checkmate is now unavoidable. Kf1 was best. } (33. Kf1 h5 34. Ke2 Rc2+ 35. Ke3 e4 36. Ra7 Kb8 37. Rfb7+ Kc8 38. Rh7 Kb8 39. Rxa6 Rc7) 33... Rc1# { Black wins by checkmate. } 0-1