Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/YXtAWxTj"]
[Date "2025.11.08"]
[White "Islomjon"]
[Black "LEO2"]
[Result "0-1"]
[UTCDate "2025.11.08"]
[UTCTime "00:12:13"]
[WhiteElo "1372"]
[BlackElo "1412"]
[WhiteRatingDiff "-10"]
[BlackRatingDiff "+11"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C46"]
[Opening "Four Knights Game"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 Nc6 2. Nf3 Nf6?! { (0.53 → 1.25) Inaccuracy. e5 was best. } (2... e5 3. Bb5 a6 4. Ba4 b5 5. Bb3 Bb7 6. O-O Nf6 7. Re1 Bc5 8. c3 d6 9. Bc2) 3. Nc3? { (1.25 → 0.05) Mistake. e5 was best. } (3. e5 Nd5) 3... e5 { C46 Four Knights Game } 4. Be2 g6?? { (-0.13 → 1.42) Blunder. d5 was best. } (4... d5 5. exd5 Nxd5 6. Bb5 Nxc3 7. bxc3 Bd6 8. O-O O-O 9. d4 exd4 10. cxd4 h6 11. Re1) 5. O-O?! { (1.42 → 0.48) Inaccuracy. d4 was best. } (5. d4 exd4 6. Nxd4 Bg7 7. Bg5 h6 8. Bh4 d6 9. f4 Qd7 10. Qd3 O-O 11. O-O-O Nxd4) 5... Bg7 6. d4 Nxd4 7. Nxd4 exd4 8. Qxd4 O-O 9. e5 Ne8 10. Qf4? { (0.68 → -0.63) Mistake. Bf4 was best. } (10. Bf4) 10... d6?! { (-0.63 → 0.14) Inaccuracy. Qe7 was best. } (10... Qe7) 11. exd6?! { (0.14 → -0.60) Inaccuracy. Rd1 was best. } (11. Rd1 Qe7 12. exd6 Nxd6 13. Be3 Bxc3 14. bxc3 Nf5 15. Rd3 Nxe3 16. Rxe3 Qd6 17. Qe4 Rb8) 11... Nxd6 12. Qg3 Re8 13. Bf3?! { (-0.48 → -1.51) Inaccuracy. Bg5 was best. } (13. Bg5 Qd7 14. Rfe1 h6 15. Bf4 Nf5 16. Qd3 c6 17. Qxd7 Bxd7 18. Rad1 Be6 19. Bd3 Bxc3) 13... Be5 14. Bf4?! { (-1.09 → -2.07) Inaccuracy. Qg5 was best. } (14. Qg5) 14... Bxf4?? { (-2.07 → 1.48) Blunder. Nf5 was best. } (14... Nf5 15. Rfd1 Qxd1+ 16. Rxd1 Nxg3 17. Bxe5 Ne2+ 18. Bxe2 Rxe5 19. Rd8+ Kg7 20. f4 Re7 21. Bf3) 15. Qxf4 g5?! { (1.35 → 2.01) Inaccuracy. g5 was best. } (15... g5 16. Qd4) 16. Qg3?? { (2.01 → -0.91) Blunder. Qd4 was best. } (16. Qd4) 16... Nc4?? { (-0.91 → 5.12) Blunder. Nf5 was best. } (16... Nf5 17. Qg4) 17. Rae1?! { (5.12 → 3.56) Inaccuracy. Rad1 was best. } (17. Rad1 Nd6 18. h4 h6 19. hxg5 hxg5 20. Ne4 Qe7 21. Rfe1 Bf5 22. Nxg5 Qxe1+ 23. Rxe1 Rxe1+) 17... Rxe1 18. Rxe1 h5? { (3.62 → 6.52) Mistake. Be6 was best. } (18... Be6 19. h4) 19. Bxh5 f5?! { (6.37 → 20.27) Inaccuracy. Bf5 was best. } (19... Bf5 20. Rd1) 20. Qd3? { (20.27 → 4.22) Mistake. Re8+ was best. } (20. Re8+) 20... Qxd3 21. cxd3 Nxb2? { (3.86 → 6.91) Mistake. Nb6 was best. } (21... Nb6) 22. Re8+?! { (6.91 → 4.61) Inaccuracy. Nd5 was best. } (22. Nd5) 22... Kg7 23. Nd5 Kh6 24. Rh8+ Kg7 25. Re8 Nxd3 26. Ne7 Ne5?! { (4.19 → 6.01) Inaccuracy. Kf6 was best. } (26... Kf6 27. Kf1) 27. Nxc8 Kh6 28. Bf3 g4 29. Bxb7 Rb8 30. Bd5?? { (6.53 → Mate in 1) Checkmate is now unavoidable. Nd6 was best. } (30. Nd6 Rxe8 31. Nxe8 Nd3 32. Ba6 Nb4 33. Bc4 f4 34. Nxc7 f3 35. Nb5 Nxa2 36. Bxa2 fxg2) 30... Rb1# { Black wins by checkmate. } 0-1