Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/UuYcwTDO"]
[Date "2025.09.15"]
[White "ReId3"]
[Black "KiRiLL"]
[Result "0-1"]
[UTCDate "2025.09.15"]
[UTCTime "15:27:51"]
[WhiteElo "1070"]
[BlackElo "1435"]
[WhiteRatingDiff "-6"]
[BlackRatingDiff "+3"]
[BlackTitle "GM"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "E90"]
[Opening "King's Indian Defense: Normal Variation, Rare Defenses"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d6 5. e4 { E90 King's Indian Defense: Normal Variation, Rare Defenses } O-O 6. Bd3 Bd7 7. O-O Nc6 8. Be3? { (0.92 → -0.53) Mistake. d5 was best. } (8. d5 Nb4) 8... e5?? { (-0.53 → 1.18) Blunder. Ng4 was best. } (8... Ng4) 9. dxe5 dxe5 10. Nd5 Nxd5?! { (0.36 → 1.29) Inaccuracy. Bg4 was best. } (10... Bg4 11. h3 Bxf3 12. Qxf3 Nd7 13. Qg3 Rc8 14. Bg5 f6 15. Be3 Nd4 16. Bxd4 exd4 17. Nf4) 11. cxd5 Ne7 12. Qb3 c6 13. Qxb7?! { (1.77 → 1.00) Inaccuracy. d6 was best. } (13. d6 Nc8) 13... cxd5 14. exd5 Bf5?! { (0.36 → 1.12) Inaccuracy. Rb8 was best. } (14... Rb8 15. Qxa7 Nxd5 16. Bc4 Ra8 17. Qb7 Nxe3 18. fxe3 Rb8 19. Qd5 Qe7 20. Ng5 Qxg5 21. Rxf7) 15. Bxf5 Nxf5 16. Nxe5?? { (0.83 → -6.62) Blunder. Bc5 was best. } (16. Bc5 Qc8 17. Qxc8 Rfxc8 18. Ba3 e4 19. g4 Nh6 20. Ng5 Nxg4 21. Nxe4 Rc4 22. Nd6 Ra4) 16... Bxe5 17. Rae1 Nxe3 18. Rxe3 Re8?! { (-6.88 → -4.99) Inaccuracy. Rb8 was best. } (18... Rb8 19. Qxa7) 19. Rxe5?! { (-4.99 → -7.53) Inaccuracy. Rfe1 was best. } (19. Rfe1 Re7 20. Qxa8 Qxa8 21. Rxe5 Rxe5 22. Rxe5 Qf8 23. d6 Qxd6 24. Re1 Qb4 25. Rf1 Qxb2) 19... Rxe5 20. d6 Rb8 21. Qxa7 Qxd6 22. Qa4 { White offers draw } 22... Rxb2 23. Qa3? { (-7.54 → Mate in 7) Checkmate is now unavoidable. h3 was best. } (23. h3 Ree2) 23... Rbe2?? { (Mate in 7 → 5.73) Lost forced checkmate sequence. Qxa3 was best. } (23... Qxa3 24. h4 Qd3 25. Rc1 Qd4 26. Rf1 Re1 27. Kh2 Qxh4+ 28. Kg1 Rxf1+ 29. Kxf1 Qxf2#) 24. Qxd6 Re1 25. Rxe1?? { (6.31 → Mate in 1) Checkmate is now unavoidable. a4 was best. } (25. a4 Re8 26. a5 g5 27. Qd2 Rxf1+ 28. Kxf1 h6 29. a6 Ra8 30. Qd7 Rxa6 31. Qc8+ Kg7) 25... Rxe1# { Black wins by checkmate. } 0-1