Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/ZLVm5oJp"]
[Date "2026.08.03"]
[White "Caroline1"]
[Black "KiRiLL"]
[Result "1-0"]
[UTCDate "2026.08.03"]
[UTCTime "15:41:57"]
[WhiteElo "1476"]
[BlackElo "1337"]
[WhiteRatingDiff "+4"]
[BlackRatingDiff "-8"]
[WhiteTitle "GM🐰"]
[BlackTitle "GM"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "D00"]
[Opening "Queen's Pawn Game"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. d4 d5 2. e3 { D00 Queen's Pawn Game } Nc6 3. f4?! { (0.58 → 0.03) Inaccuracy. Nf3 was best. } (3. Nf3 Bf5) 3... Nf6 4. Nf3 e6 5. c3 Bd6 6. Bd3 O-O 7. Nbd2 Bd7 8. O-O Qe7? { (0.24 → 1.40) Mistake. Ne7 was best. } (8... Ne7 9. Ne5 c5 10. b3 Rc8 11. Bb2 b5 12. g4 c4 13. Bc2 Be8 14. Qf3 Nd7 15. Qh3) 9. Ne5 Nxe5?? { (1.34 → 7.99) Blunder. Be8 was best. } (9... Be8 10. Qf3 h6 11. Qh3 Nh7 12. e4 dxe4 13. Bxe4 f6 14. Nd3 f5 15. Bf3 Nd8 16. a4) 10. dxe5 Bxe5 11. fxe5 Ne4 12. Bxe4 dxe4 13. Nxe4 Rad8 14. Rf3? { (7.50 → 4.00) Mistake. Nf6+ was best. } (14. Nf6+) 14... Bc6 15. Qc2 f5? { (3.09 → 6.23) Mistake. Qh4 was best. } (15... Qh4) 16. exf6 Rxf6?! { (5.97 → 9.26) Inaccuracy. Qd7 was best. } (16... Qd7 17. f7+ Kh8 18. Ng5 Qd1+ 19. Qxd1 Rxd1+ 20. Rf1 Rxf1+ 21. Kxf1 h6 22. Nf3 Rxf7 23. c4) 17. Nxf6+ gxf6 18. Rg3+ Kf7 19. Qxh7+ Ke8 20. Qxe7+ Kxe7 21. Rg7+ Kd6 22. Bd2 Bd5 23. b3 e5 24. c4 Be6 25. Bb4+ c5 26. Ba3 Rh8 27. b4 Bxc4 28. bxc5+ Kc6 29. Rc1 Bxa2 30. Ra1 Bc4 31. Bb4 Rh4 32. Rxa7 Re4 33. Raxb7 Rxe3 34. Rgc7+ Kd5 35. Rd7+ Ke4 36. c6 Re1+ 37. Kf2 Re2+ 38. Kg3 Re3+ 39. Kh4 Be6 40. Re7 Bf5 41. c7 Kf4 42. h3 Re4? { (8.60 → Mate in 5) Checkmate is now unavoidable. Re2 was best. } (42... Re2 43. g3+) 43. g4? { (Mate in 5 → 8.65) Lost forced checkmate sequence. Bd2+ was best. } (43. Bd2+ Re3 44. Rb4+ e4 45. Rbxe4+ Bxe4 46. c8=Q f5 47. Qb8#) 43... Kf3 44. Kh5 Bh7 45. Rxh7 { Black resigns. } 1-0