Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/LDrCJuuy"]
[Date "2025.08.25"]
[White "KiRiLL"]
[Black "Pekka"]
[Result "0-1"]
[UTCDate "2025.08.25"]
[UTCTime "15:03:08"]
[WhiteElo "1433"]
[BlackElo "1528"]
[WhiteRatingDiff "-9"]
[BlackRatingDiff "+13"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C45"]
[Opening "Scotch Game: Schmidt Variation"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 { C45 Scotch Game: Schmidt Variation } 5. Nc3 Bb4 6. Bd2?? { (0.09 → -3.39) Blunder. Nxc6 was best. } (6. Nxc6 bxc6 7. Bd3 O-O 8. O-O d5 9. exd5 cxd5 10. Qf3 c6 11. h3 Re8 12. Bg5 h6) 6... Bxc3?? { (-3.39 → 0.66) Blunder. Nxd4 was best. } (6... Nxd4 7. e5) 7. Bxc3 Nxe4 8. Nxc6 Nxc3 9. Nxd8 Nxd1 10. Rxd1?? { (0.47 → -1.77) Blunder. Nxf7 was best. } (10. Nxf7 Kxf7) 10... O-O?? { (-1.77 → 0.73) Blunder. Kxd8 was best. } (10... Kxd8 11. Rd4 d6 12. Kd2 Be6 13. h4 a5 14. Bd3 h5 15. Re1 Kd7 16. Rf4 g6 17. Rf6) 11. Nxf7 Rxf7?? { (1.00 → 3.00) Blunder. Kxf7 was best. } (11... Kxf7 12. Bc4+ Ke7 13. Rd3 d6 14. Re3+ Kd8 15. O-O Bd7 16. Rfe1 g6 17. Re7 Re8 18. Rxe8+) 12. Bc4 d5 13. Bxd5 Bg4?? { (2.92 → 8.07) Blunder. Be6 was best. } (13... Be6 14. Bxe6 Re8 15. f3 Rxe6+ 16. Kf2 Rb6 17. b3 Rc6 18. Rd8+ Rf8 19. Rd2 b5 20. Re1) 14. Rd4? { (8.07 → 4.30) Mistake. Bxf7+ was best. } (14. Bxf7+ Kxf7 15. f3 Re8+ 16. Kf2 Bxf3 17. Rd7+ Re7 18. Rxe7+ Kxe7 19. Kxf3 Kf6 20. Ke4 Ke6) 14... Re8+ 15. Be4?? { (4.33 → -7.51) Blunder. Kd2 was best. } (15. Kd2 Be6 16. Re1 Rxf2+ 17. Kc3 Kf7 18. Rde4 Rf6 19. Bxb7 Bd7 20. Rxe8 Bxe8 21. Re5 Kf8) 15... Bf5?? { (-7.51 → 0.29) Blunder. Rd7 was best. } (15... Rd7 16. Rxd7) 16. f3 Rfe7 17. O-O Bxe4 18. fxe4 Rxe4 19. Rxe4 Rxe4 20. Rf2?! { (0.00 → -0.53) Inaccuracy. g3 was best. } (20. g3 Re2 21. Rf2 Re1+ 22. Kg2 Ra1 23. a3 a5 24. c3 Rb1 25. Kf3 Kf7 26. Ke3+ Ke6) 20... Re1+ 21. Rf1 Rxf1+ 22. Kxf1 Kf7 23. Ke2 Ke6 24. Kd3 Kd5 25. c4+ Kc5 26. Kc3 b5? { (0.00 → 1.53) Mistake. a5 was best. } (26... a5 27. b3 h5 28. h4 c6 29. a3 Kd6 30. Kd4 c5+ 31. Ke4 Ke6 32. g3 b6 33. a4) 27. cxb5? { (1.53 → 0.35) Mistake. b4+ was best. } (27. b4+ Kc6 28. Kd4 bxc4 29. Kxc4 g5 30. h3 h5 31. a4 g4 32. hxg4 hxg4 33. Kd4 Kd6) 27... Kxb5 28. Kb3 c5 29. a4+ Ka5 30. Kc4?? { (0.00 → -5.90) Blunder. h4 was best. } (30. h4 h5 31. Ka3 Ka6 32. Ka2 Kb6 33. Ka3) 30... Kxa4 31. Kxc5 Kb3 32. Kb5 Kxb2 33. Ka6 Kc3 34. Kxa7 Kd4 35. Kb7 Ke3 36. Kc7 g5 37. Kd6 h5?? { (-56.84 → 0.00) Blunder. Kf2 was best. } (37... Kf2 38. Ke5 Kxg2 39. Kf5 h6 40. Kg6 Kxh2 41. Kxh6 g4 42. Kg5 g3 43. Kf5 g2 44. Ke4) 38. Ke5 g4 39. h4?? { (0.00 → -57.75) Blunder. Kf5 was best. } (39. Kf5 Kf2 40. Kg5 Kxg2 41. Kxh5 Kh3 42. Kg5 g3 43. hxg3 Kxg3 44. Kg6 Kf4 45. Kf6 Ke4) 39... Kf2 40. Kf5 Kxg2 41. Kg5 Kh3 42. Kxh5 g3 43. Kg5 g2 { White resigns. } 0-1