Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/V9vGsRV4"]
[Date "2025.09.19"]
[White "LEO2"]
[Black "Eitan1"]
[Result "1-0"]
[UTCDate "2025.09.19"]
[UTCTime "23:39:15"]
[WhiteElo "1367"]
[BlackElo "1197"]
[WhiteRatingDiff "+9"]
[BlackRatingDiff "-11"]
[WhiteTitle "GM"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C47"]
[Opening "Four Knights Game: Scotch Variation Accepted"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 Nc6 2. Nc3?! { (0.81 → 0.26) Inaccuracy. d4 was best. } (2. d4) 2... e5 3. Nf3 Nf6 4. d4 exd4 { C47 Four Knights Game: Scotch Variation Accepted } 5. Nxd4 Nxd4? { (0.11 → 1.55) Mistake. Bb4 was best. } (5... Bb4 6. Nxc6) 6. Qxd4 c5? { (1.31 → 2.60) Mistake. d6 was best. } (6... d6 7. Bf4 Be7 8. O-O-O O-O 9. f3 a6 10. g4 b5 11. h4 c5 12. Qd2 b4 13. Ne2) 7. Qe5+?! { (2.60 → 1.81) Inaccuracy. Qd3 was best. } (7. Qd3 d5) 7... Qe7? { (1.81 → 3.50) Mistake. Be7 was best. } (7... Be7 8. Qg3) 8. Qd5?? { (3.50 → -8.32) Blunder. Qxe7+ was best. } (8. Qxe7+ Bxe7 9. e5 Ng4 10. Bf4 f6 11. exf6 Bxf6 12. Nb5 d5 13. Nc7+ Kf7 14. c3 g5) 8... Nxd5 9. Nxd5 Qxe4+ 10. Ne3 d5 11. Bb5+ Bd7 12. Bd3 d4?? { (-9.69 → 0.28) Blunder. Qe5 was best. } (12... Qe5 13. f4 Qxf4 14. Nxd5 Qe5+ 15. Ne3 c4 16. Be2 c3 17. Rb1 cxb2 18. Rxb2 Ba3 19. Nc4) 13. Bxe4 dxe3 14. fxe3? { (0.56 → -0.74) Mistake. Bxe3 was best. } (14. Bxe3 O-O-O) 14... g6?? { (-0.74 → 1.50) Blunder. O-O-O was best. } (14... O-O-O 15. Bd2 Bd6 16. O-O-O Be5 17. Be1 b6 18. Bf3 Rhe8 19. b3 Kc7 20. Rd3 a5 21. Bh4) 15. b3?? { (1.50 → -0.84) Blunder. Bxb7 was best. } (15. Bxb7) 15... Bf5?? { (-0.84 → 2.81) Blunder. Bg7 was best. } (15... Bg7 16. Rb1 O-O-O 17. O-O f5 18. Bf3 Rhe8 19. Kf2 Kc7 20. Bd2 Bb5 21. Rfd1 b6 22. c4) 16. Bxf5? { (2.81 → 1.51) Mistake. Bxb7 was best. } (16. Bxb7 Rd8) 16... gxf5 17. Bb2 b5?? { (1.45 → 8.53) Blunder. Rg8 was best. } (17... Rg8) 18. Bxh8 O-O-O 19. Rd1 Rxd1+ 20. Kxd1 Bh6 21. Re1 c4 22. Be5 cxb3 23. cxb3 a5 24. Re2 f4 25. Rc2+ Kb7 26. exf4 f5 27. Rc7+ Ka6 28. Rc6+ Kb7 29. Rxh6 b4 30. Rxh7+ Kb6 31. h4 Kc5 32. h5 Kb5 33. h6 Kc5 34. Rc7+ Kb5 35. h7 Kb6 36. h8=Q Ka6 37. Qa8+ Kb6 38. Qc6# { White wins by checkmate. } 1-0