Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/LeoZV8Ww"]
[Date "2026.05.08"]
[White "Eitan1"]
[Black "Nathan4"]
[Result "1-0"]
[UTCDate "2026.05.08"]
[UTCTime "23:17:01"]
[WhiteElo "1181"]
[BlackElo "1352"]
[WhiteRatingDiff "+13"]
[BlackRatingDiff "-20"]
[BlackTitle "GM"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C50"]
[Opening "Giuoco Piano"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. Nf3 Nc6 2. e4 e5 3. Bc4 Bc5 { C50 Giuoco Piano } 4. Ng5?? { (0.32 → -7.14) Blunder. d3 was best. } (4. d3 Nf6) 4... Qxg5 5. d4 exd4?? { (-10.02 → 7.92) Blunder. Qxg2 was best. } (5... Qxg2 6. dxc5) 6. Bxg5 f6 7. Bc1 d6 8. Qh5+ g6 9. Qf3 Ne5 10. Qd1 d3 11. cxd3 f5 12. exf5 Bxf5 13. f3 c6 14. g4 Nxd3+ 15. Kd2 Nf2 16. Qe1+ Ne7 17. Rf1 Bd7 18. Qe2 d5 19. Re1? { (7.38 → 3.79) Mistake. Bb3 was best. } (19. Bb3 Nh3 20. Kc2 O-O-O 21. Qg2 h5 22. Qxh3 hxg4 23. Qg2 gxf3 24. Rxf3 Nf5 25. Rd3 Nd4+) 19... dxc4? { (3.79 → 6.20) Mistake. O-O-O was best. } (19... O-O-O) 20. b4?? { (6.20 → 0.00) Blunder. Qxc4 was best. } (20. Qxc4 Bb6 21. Kc2 h5 22. Bg5 O-O-O 23. Bxe7 hxg4 24. Bxd8 Bf5+ 25. Kb3 Rxd8 26. a4 gxf3) 20... Bxb4+ 21. Kc2? { (0.00 → -1.22) Mistake. Nc3 was best. } (21. Nc3 O-O-O 22. Qxf2 Bf5+ 23. Ke2 Bd3+ 24. Kd2 Bb1+ 25. Ke2) 21... Bxe1?? { (-1.22 → 0.36) Blunder. Nd3 was best. } (21... Nd3 22. Bd2) 22. Ba3?? { (0.36 → -2.88) Blunder. Qxe1 was best. } (22. Qxe1 Nd3 23. Qe4 O-O-O 24. Qxe7 Rhe8 25. Qa3 Ne1+ 26. Kb2 Re2+ 27. Bd2 Be6 28. Kc1 Rd3) 22... h5?? { (-2.88 → Mate in 1) Checkmate is now unavoidable. c5 was best. } (22... c5 23. Qxe1 Nd3 24. Qe4 Ba4+ 25. Kc3 O-O-O 26. Qxe7 Rhe8 27. Qf6 Re3 28. Bxc5 Nxc5+ 29. Kb4) 23. Qxe7# { White wins by checkmate. } 1-0