Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/GS0NhFdN"]
[Date "2026.08.18"]
[White "Mark-David"]
[Black "Gabriel1"]
[Result "0-1"]
[UTCDate "2026.08.18"]
[UTCTime "20:16:38"]
[WhiteElo "1212"]
[BlackElo "1404"]
[WhiteRatingDiff "-6"]
[BlackRatingDiff "+4"]
[BlackTitle "GM🏈"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C10"]
[Opening "French Defense: Rubinstein Variation"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 e6 2. d4 d5 3. Nc3 dxe4 { C10 French Defense: Rubinstein Variation } 4. Nxe4 f5? { (0.65 → 1.85) Mistake. Nd7 was best. } (4... Nd7 5. Nf3) 5. Nc3 Nf6 6. Nf3 Bb4?! { (1.19 → 1.77) Inaccuracy. a6 was best. } (6... a6 7. a4) 7. Bd2 Bxc3 8. Bxc3 Nc6 9. Bb5 Bd7 10. Bxc6? { (1.97 → 0.53) Mistake. O-O was best. } (10. O-O) 10... Bxc6 11. O-O O-O?! { (0.48 → 1.04) Inaccuracy. Bxf3 was best. } (11... Bxf3 12. Qxf3) 12. Ne5 Qd5 13. Nxc6? { (1.52 → 0.29) Mistake. f3 was best. } (13. f3 Bb5 14. Re1 Rfd8 15. a4 Ba6 16. Qd2 Rac8 17. Qf2 Qd6 18. Rad1 b6 19. a5 c5) 13... Qxc6 14. Re1 Nh5?? { (0.16 → 8.65) Blunder. Rad8 was best. } (14... Rad8 15. Qd3 Rfe8 16. Re5 Ng4 17. Re2 Qd6 18. g3 Nf6 19. Rae1 Ne4 20. f3 Nxc3 21. bxc3) 15. Qxh5 g6 16. Qe2 Rae8 17. b4?? { (8.92 → -0.04) Blunder. Rad1 was best. } (17. Rad1 f4) 17... b5?? { (-0.04 → 9.07) Blunder. Qxc3 was best. } (17... Qxc3) 18. Bd2 Qxc2 19. Bh6 Qxe2 20. Rxe2 Rf6 21. Rae1 Rd8 22. Rxe6 Rxe6 23. Rxe6 Rxd4 24. Re7?? { (6.61 → Mate in 2) Checkmate is now unavoidable. g3 was best. } (24. g3 Kf7 25. Rc6 Rc4 26. Ra6 Rxb4 27. Rxa7 Rc4 28. Bf4 Ke8 29. Ra5 b4 30. Be3 Rc2) 24... Rd1+ 25. Re1 Rxe1# { Black wins by checkmate. } 0-1