Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/bQlDdt2x"]
[Date "2026.03.13"]
[White "Armaan"]
[Black "Islomjon"]
[Result "0-1"]
[UTCDate "2026.03.13"]
[UTCTime "23:31:26"]
[WhiteElo "1857"]
[BlackElo "1355"]
[WhiteRatingDiff "-258"]
[BlackRatingDiff "+15"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C46"]
[Opening "Four Knights Game"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 { C46 Four Knights Game } 4. d3 Bb4 5. a3 Bxc3+ 6. bxc3 O-O?! { (-0.55 → 0.00) Inaccuracy. d5 was best. } (6... d5 7. Nd2 O-O 8. a4 b6 9. f3 Be6 10. Nb3 h6 11. Be2 Nh5 12. O-O Re8 13. exd5) 7. d4? { (0.00 → -1.31) Mistake. c4 was best. } (7. c4 d6 8. h3 a6 9. Rb1 Nd7 10. g3 Nc5 11. Bg2 Na4 12. Bd2 Nc5 13. O-O b5) 7... exd4 8. cxd4?! { (-1.14 → -1.84) Inaccuracy. e5 was best. } (8. e5 Re8 9. cxd4 d6 10. Bb5 dxe5 11. Bxc6 bxc6 12. dxe5 Qxd1+ 13. Kxd1 Ng4 14. Ke1 Bf5) 8... d6?? { (-1.84 → 0.14) Blunder. Nxe4 was best. } (8... Nxe4 9. Bd3 d5 10. Be3 Re8 11. O-O Bf5 12. c4 Nd6 13. Bxf5 Nxf5 14. Qb1 Nxe3 15. fxe3) 9. e5?? { (0.14 → -1.72) Blunder. d5 was best. } (9. d5 Nb8) 9... dxe5 10. dxe5 Ne4?? { (-2.35 → -0.24) Blunder. Qxd1+ was best. } (10... Qxd1+ 11. Kxd1) 11. Bd3?! { (-0.24 → -0.85) Inaccuracy. Qxd8 was best. } (11. Qxd8 Rxd8 12. Be3 h6 13. Bd3 Nc3 14. Bd2 Nd5 15. O-O-O Be6 16. Rhe1 Nb6 17. Bc3 Nc4) 11... Nc3? { (-0.85 → 0.30) Mistake. Nc5 was best. } (11... Nc5 12. Be2 Qxd1+ 13. Bxd1 Na4 14. O-O Rd8 15. Bg5 Re8 16. Bd2 h6 17. Re1 Be6 18. Be2) 12. Qd2 Nd5?! { (0.32 → 1.10) Inaccuracy. Na4 was best. } (12... Na4 13. Qe3) 13. Ng5? { (1.10 → -0.20) Mistake. Bb2 was best. } (13. Bb2 h6 14. O-O Be6 15. Rae1 Qe7 16. h3 Rad8 17. Nh2 Nb6 18. f4 Bf5 19. Qf2 Rxd3) 13... h6 14. Bh7+ Kh8 15. e6?? { (-0.41 → -6.70) Blunder. Be4 was best. } (15. Be4 Qxg5 16. Qxg5 hxg5 17. Bxd5 Nd4 18. Ra2 Be6 19. Bxe6 Nxe6 20. h4 g4 21. Rb2 b6) 15... Qxg5 16. Qxg5 hxg5 17. Bxg5 Kxh7 18. exf7 Rxf7 19. O-O Bf5 20. h3 Bxc2 21. Rac1 Bd3 22. Rfd1 Be2?! { (-8.91 → -5.55) Inaccuracy. Rf5 was best. } (22... Rf5 23. h4 Rxg5 24. hxg5 Nf4 25. Rxc6 bxc6 26. g3 Ne2+ 27. Kf1 Bb5 28. a4 Nc3+ 29. axb5) 23. Rxd5 Rd8?? { (-5.64 → 5.54) Blunder. Re8 was best. } (23... Re8) 24. Rxd8?? { (5.54 → 0.48) Blunder. Bxd8 was best. } (24. Bxd8 Nxd8) 24... Nxd8 25. Re1?? { (0.47 → -4.08) Blunder. Bxd8 was best. } (25. Bxd8 c6 26. Bg5 Bb5 27. Rd1 c5 28. Rd5 b6 29. f3 Rd7 30. Rxd7 Bxd7 31. Kf2 Kg8) 25... Ne6 26. Rxe2 Nxg5 27. h4 Kh6 28. hxg5+ Kxg5 29. Re5+ Kg6 30. g3 Rd7 31. Ra5 b6?? { (-2.47 → -0.01) Blunder. a6 was best. } (31... a6 32. Kg2 c6 33. g4 Rd5 34. Ra4 Kf7 35. f4 c5 36. Kf3 Rd6 37. Rc4 Rc6 38. Ke4) 32. Rxa7 Kg5 33. f4+ Kg4 34. a4?? { (-0.16 → -5.50) Blunder. Kf2 was best. } (34. Kf2 g6 35. a4 Rd2+ 36. Ke3 Rg2 37. Rxc7 Rxg3+ 38. Ke2 Kxf4 39. Rc4+ Kf5 40. Rb4 Rc3) 34... Kxg3 35. f5?? { (-5.75 → Mate in 1) Checkmate is now unavoidable. Kf1 was best. } (35. Kf1 Kxf4) 35... Rd1# { Black wins by checkmate. } 0-1