Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/kQrEgRZD"]
[Date "2026.09.23"]
[White "AJ1"]
[Black "xavi"]
[Result "0-1"]
[UTCDate "2026.09.23"]
[UTCTime "20:39:47"]
[WhiteElo "1404"]
[BlackElo "1742"]
[WhiteRatingDiff "-30"]
[BlackRatingDiff "+2"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C42"]
[Opening "Russian Game"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 e5 2. Nf3 Nf6 { C42 Russian Game } 3. Bd3?? { (0.79 → -0.86) Blunder. Nxe5 was best. } (3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Be7 6. Bd3 d5 7. O-O Nf6 8. c4 O-O 9. Nc3 Nc6) 3... Nc6?! { (-0.86 → -0.12) Inaccuracy. d5 was best. } (3... d5 4. exd5 e4 5. Qe2 Qe7 6. d6 cxd6 7. Bb5+ Nc6 8. Nd4 Bd7 9. Nb3 a6 10. Bxc6) 4. O-O Bc5 5. b3?! { (0.04 → -0.51) Inaccuracy. Nc3 was best. } (5. Nc3 O-O 6. Nd5 d6 7. c3 Be6 8. b4 Bb6 9. Nxb6 axb6 10. b5 Ne7 11. a4 d5) 5... d6 6. a4 Bg4 7. Nc3 Nd4 8. Be2 Nh5?? { (-0.55 → 8.13) Blunder. Nxe2+ was best. } (8... Nxe2+ 9. Nxe2) 9. h3?? { (8.13 → -1.80) Blunder. Nxd4 was best. } (9. Nxd4 Bxd4) 9... Be6?? { (-1.80 → 5.56) Blunder. Nxe2+ was best. } (9... Nxe2+ 10. Qxe2) 10. Nxd4 Bxd4?! { (4.76 → 7.00) Inaccuracy. exd4 was best. } (10... exd4 11. Bxh5) 11. Bxh5 Qg5 12. Bf3 Bxh3 13. Bg4?? { (6.54 → -7.92) Blunder. Ra3 was best. } (13. Ra3 Bxc3) 13... Bxg4 14. Qxg4 Qxg4 15. d3 h5 16. Be3 Bxe3 17. fxe3 h4 18. Kf2 h3 19. Ne2 hxg2 20. Kg1?! { (-13.38 → Mate in 4) Checkmate is now unavoidable. Rg1 was best. } (20. Rg1 Rh3) 20... Rh1+ 21. Kf2 gxf1=R+ 22. Rxf1 Rxf1+ 23. Kxf1 O-O-O 24. c4 Rh8 25. Ke1 Rh1+ 26. Kd2 Rh2 27. Ke1 Qxe2# { Black wins by checkmate. } 0-1