Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/oJsIp3Kb"]
[Date "2025.08.27"]
[White "Maxim"]
[Black "xavi"]
[Result "1-0"]
[UTCDate "2025.08.27"]
[UTCTime "23:21:43"]
[WhiteElo "1776"]
[BlackElo "1741"]
[WhiteRatingDiff "+8"]
[BlackRatingDiff "-5"]
[WhiteTitle "GM🧂"]
[BlackTitle "GM🥉"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "B10"]
[Opening "Caro-Kann Defense"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 c6 { B10 Caro-Kann Defense } 2. Nf3 d5 3. exd5 cxd5 4. d4 Nf6 5. c4 dxc4?! { (0.06 → 0.72) Inaccuracy. g6 was best. } (5... g6 6. cxd5) 6. Bxc4 Nc6?! { (0.65 → 1.71) Inaccuracy. e6 was best. } (6... e6 7. O-O Bd6 8. Nc3 O-O 9. Bg5 Nc6 10. Re1 h6 11. Bh4 Be7 12. a3 Nh5 13. d5) 7. Nc3?! { (1.71 → 0.90) Inaccuracy. d5 was best. } (7. d5 Na5) 7... Bg4?? { (0.90 → 3.31) Blunder. e6 was best. } (7... e6 8. O-O Bb4 9. Re1 O-O 10. a3 Bxc3 11. bxc3 b6 12. Bf1 Bb7 13. c4 Ne7 14. Bb2) 8. h3?? { (3.31 → 0.61) Blunder. d5 was best. } (8. d5 Bxf3 9. Qxf3 Nd4 10. Qd3 e5 11. dxe6 fxe6 12. O-O Bc5 13. Na4 Qd6 14. Nxc5 Qxc5) 8... Bxf3 9. Qxf3 Nxd4?! { (0.63 → 1.39) Inaccuracy. Qxd4 was best. } (9... Qxd4 10. Bb5) 10. Qd1?? { (1.39 → -0.89) Blunder. Qxb7 was best. } (10. Qxb7 e6) 10... Nc6?? { (-0.89 → 1.22) Blunder. Rc8 was best. } (10... Rc8 11. Qd3 a6 12. Be3 Nc6 13. Qxd8+ Rxd8 14. Rc1 e6 15. O-O Be7 16. Rfd1 O-O 17. Be2) 11. Qe2?? { (1.22 → -0.62) Blunder. Qb3 was best. } (11. Qb3 e6 12. Qxb7 Nd4 13. O-O Bc5 14. Bb5+ Kf8 15. Rd1 Rb8 16. Qa6 Qb6 17. Bd3 Qxa6) 11... e6 12. Be3 Bd6 13. O-O O-O 14. Bd3 Ne5? { (-1.37 → -0.30) Mistake. Be5 was best. } (14... Be5 15. Rfd1) 15. Bc2?! { (-0.30 → -0.82) Inaccuracy. Rad1 was best. } (15. Rad1 Qe7 16. Bg5 Rfd8 17. Ne4 Bc5 18. Bc2 Bb6 19. a4 Rxd1 20. Rxd1 Rd8 21. Nxf6+ gxf6) 15... Qc7?! { (-0.82 → -0.14) Inaccuracy. Be7 was best. } (15... Be7 16. Rfd1 Qa5 17. Ne4 Nc6 18. Nxf6+ Bxf6 19. Be4 Rfd8 20. Bxc6 bxc6 21. Rdc1 Rab8 22. Rc5) 16. Bg5? { (-0.14 → -1.39) Mistake. Rfd1 was best. } (16. Rfd1 Rfd8 17. Bxa7 Nc6 18. Be3 Bh2+ 19. Kh1 Be5 20. Rxd8+ Rxd8 21. Rd1 Rxd1+ 22. Bxd1 Qa5) 16... Be7?? { (-1.39 → 1.76) Blunder. Qc4 was best. } (16... Qc4 17. Qe3 Ng6 18. Rad1 Be7 19. Rd4 Qc7 20. Rfd1 Rfd8 21. Bxf6 Bxf6 22. Rxd8+ Bxd8 23. Be4) 17. Ne4?? { (1.76 → -1.57) Blunder. Bf4 was best. } (17. Bf4 Nfd7 18. Rad1 Bf6 19. Rxd7 Qxd7 20. Bxe5 Bxe5 21. Qxe5 Rad8 22. Rb1 Qd4 23. Qe2 g6) 17... Nxe4?! { (-1.57 → -0.54) Inaccuracy. Nd5 was best. } (17... Nd5 18. Bxe7) 18. Bxe7 Qxe7 19. Qxe4?! { (-0.69 → -1.24) Inaccuracy. Bxe4 was best. } (19. Bxe4 Ng6) 19... Nc6?? { (-1.24 → Mate in 1) Checkmate is now unavoidable. Ng6 was best. } (19... Ng6 20. Rfd1) 20. Qxh7# { White wins by checkmate. } 1-0