Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/DP54sarb"]
[Date "2025.12.20"]
[White "Eitan1"]
[Black "Islomjon"]
[Result "1-0"]
[UTCDate "2025.12.20"]
[UTCTime "00:47:00"]
[WhiteElo "1231"]
[BlackElo "1340"]
[WhiteRatingDiff "+13"]
[BlackRatingDiff "-15"]
[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 Be7 5. Be3?! { (0.00 → -0.58) Inaccuracy. Nd5 was best. } (5. Nd5 O-O 6. Be2 d6 7. c4 Nxd5 8. cxd5 Nd4 9. Nxd4 exd4 10. f4 c5 11. dxc6 bxc6) 5... O-O 6. Be2 Bb4 7. O-O Bxc3 8. bxc3 d6? { (-0.10 → 0.95) Mistake. d5 was best. } (8... d5 9. exd5) 9. c4?! { (0.95 → 0.00) Inaccuracy. Nd2 was best. } (9. Nd2 d5) 9... Bg4?! { (0.00 → 0.81) Inaccuracy. Ng4 was best. } (9... Ng4 10. Bc1 f5 11. exf5 Bxf5 12. Bb2 Qe7 13. Nd2 Qd7 14. a4 Rae8 15. Re1 b6 16. a5) 10. h3 Bxf3 11. gxf3?? { (1.00 → -1.82) Blunder. Bxf3 was best. } (11. Bxf3 Nd7) 11... Nd7? { (-1.82 → -0.57) Mistake. Nh5 was best. } (11... Nh5 12. Kh2) 12. Kh2 Nf6? { (-0.75 → 0.59) Mistake. f5 was best. } (12... f5 13. exf5) 13. Rg1? { (0.59 → -0.52) Mistake. f4 was best. } (13. f4) 13... Nh5 14. Qf1?! { (-0.56 → -1.61) Inaccuracy. Rb1 was best. } (14. Rb1 b6) 14... Ne7?! { (-1.61 → -0.65) Inaccuracy. Nd4 was best. } (14... Nd4 15. Bxd4) 15. Qg2 Ng6 16. d4?? { (-0.71 → -2.43) Blunder. Qg4 was best. } (16. Qg4) 16... exd4 17. f4?? { (-2.32 → -6.54) Blunder. Bxd4 was best. } (17. Bxd4) 17... dxe3 18. f5 exf2 19. Qxf2 Ne5?! { (-8.00 → -4.56) Inaccuracy. Nhf4 was best. } (19... Nhf4 20. Bg4) 20. Qg2 Nf4?? { (-5.40 → Mate in 1) Checkmate is now unavoidable. Qf6 was best. } (20... Qf6) 21. Qxg7# { White wins by checkmate. } 1-0