Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/g2gYpY2z"]
[Date "2025.11.03"]
[White "Benton"]
[Black "Mark"]
[Result "1-0"]
[UTCDate "2025.11.03"]
[UTCTime "16:51:03"]
[WhiteElo "2002"]
[BlackElo "1481"]
[WhiteRatingDiff "+1"]
[BlackRatingDiff "-1"]
[WhiteTitle "GM☾"]
[BlackTitle "⛳"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "B13"]
[Opening "Caro-Kann Defense: Exchange Variation"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 c6 2. d4 d5 3. exd5 { B13 Caro-Kann Defense: Exchange Variation } Qxd5?! { (0.43 → 1.09) Inaccuracy. cxd5 was best. } (3... cxd5 4. Bd3 Nc6 5. c3 Qc7 6. Ne2 e5 7. dxe5 Nxe5 8. Bb5+ Bd7 9. Bxd7+ Qxd7 10. Bf4) 4. Nc3 Qe6+ 5. Be3 Nf6 6. Nf3 Ne4? { (1.50 → 2.87) Mistake. Qd6 was best. } (6... Qd6 7. Bd3) 7. Nxe4 Qxe4 8. Bd3 Qd5 9. O-O e6?! { (2.32 → 3.16) Inaccuracy. Bg4 was best. } (9... Bg4 10. Be2 g6 11. c4 Qd7 12. h3 Bxf3 13. Bxf3 Bg7 14. Rc1 O-O 15. b4 Na6 16. b5) 10. c4 Qh5 11. Ne5?? { (3.36 → 1.45) Blunder. Bf4 was best. } (11. Bf4 Nd7 12. h3 Be7 13. Re1 O-O 14. Re3 Qa5 15. Bc2 Qd8 16. Qe2 Nf6 17. Qd3 g6) 11... Qxd1 12. Raxd1 Nd7 13. Nxd7?! { (1.38 → 0.85) Inaccuracy. f4 was best. } (13. f4 Be7 14. g4 c5 15. Be4 Nxe5 16. dxe5 Bd7 17. b3 O-O-O 18. h4 Bc6 19. Bxc6 bxc6) 13... Bxd7 14. Be4 O-O-O 15. d5 c5?? { (1.11 → 3.84) Blunder. cxd5 was best. } (15... cxd5 16. cxd5) 16. dxe6 Bxe6 17. Rxd8+?! { (3.76 → 2.35) Inaccuracy. Bxb7+ was best. } (17. Bxb7+ Kc7) 17... Kxd8 18. Bd5?? { (2.30 → 0.60) Blunder. Bxb7 was best. } (18. Bxb7 Bxc4 19. Rc1 Be6 20. a3 Bd6 21. Bxc5 Kc7 22. Be4 Bxc5 23. Rxc5+ Kb6 24. b4 Rc8) 18... Bxd5 19. cxd5?? { (0.51 → -1.26) Blunder. Rd1 was best. } (19. Rd1 Kc8) 19... c4?? { (-1.26 → 1.07) Blunder. Bd6 was best. } (19... Bd6 20. h3 Kd7 21. g4 Re8 22. Kg2 Re5 23. Rd1 f5 24. b3 g6 25. Kf1 b6 26. Bc1) 20. Bxa7 b5 21. b3? { (0.82 → -0.28) Mistake. Rc1 was best. } (21. Rc1 Kd7 22. Bd4 Kd6 23. a4 Kxd5 24. Rd1 Kc6 25. axb5+ Kxb5 26. Bc3 Be7 27. Bxg7 Rd8) 21... c3 22. Rc1 b4 23. h3?! { (-0.78 → -1.64) Inaccuracy. Kf1 was best. } (23. Kf1 Kd7 24. Ke2 Be7 25. Bd4 Ra8 26. Ra1 Kd6 27. Bxg7 Rg8 28. Bh6 Kxd5 29. g3 Ra8) 23... g6?! { (-1.64 → -0.62) Inaccuracy. Kd7 was best. } (23... Kd7 24. Kf1 Bd6 25. Be3 Ra8 26. Ra1 Be5 27. Ke2 Kd6 28. g3 h5 29. Kd3 Kxd5 30. Bg5) 24. Bd4?! { (-0.62 → -1.17) Inaccuracy. a4 was best. } (24. a4 bxa3) 24... Rg8?! { (-1.17 → -0.52) Inaccuracy. Bh6 was best. } (24... Bh6 25. Rc2 Re8 26. Bc5 Re1+ 27. Kh2 Rc1 28. Re2 Bf4+ 29. g3 c2 30. Be7+ Kd7 31. gxf4) 25. a3 bxa3 26. Bxc3? { (-0.42 → -1.50) Mistake. Rxc3 was best. } (26. Rxc3 Bd6 27. Rc4 Kd7 28. Ra4 Rb8 29. Kf1 Rxb3 30. Ra7+ Kd8 31. Ke2 Rb5 32. Kd3 Rxd5) 26... a2?? { (-1.50 → 3.89) Blunder. Bd6 was best. } (26... Bd6) 27. Ra1 Bg7?! { (3.85 → 5.18) Inaccuracy. Kd7 was best. } (27... Kd7 28. Rxa2) 28. Bxg7 Rxg7 29. Rxa2 f6? { (4.27 → 8.28) Mistake. Ke7 was best. } (29... Ke7) 30. Ra8+ Kd7 31. Ra7+ Kd6 32. Rxg7 Kxd5 33. Rxh7 Kc5 34. Rh6 Kb4 35. Rxg6 Kxb3 36. Rxf6 Kc4 37. Rf3 Kd5 38. h4 Ke6 39. h5 Kd5 40. h6 Ke4 41. h7 Kd4 42. h8=Q+ Kd5 43. Qd8+ Ke5 44. Re3+ Kf5 45. Qf8+ Kg6 46. Rg3+ Kh7 47. Qg7# { White wins by checkmate. } 1-0