Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/HrSizyLv"]
[Date "2026.07.10"]
[White "Mark2"]
[Black "Abigail1"]
[Result "0-1"]
[UTCDate "2026.07.10"]
[UTCTime "23:14:11"]
[WhiteElo "1194"]
[BlackElo "1012"]
[WhiteRatingDiff "-16"]
[BlackRatingDiff "+16"]
[WhiteTitle "࿄"]
[BlackTitle "IM🪰"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C00"]
[Opening "French Defense: Knight Variation"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 e6 2. Nf3 { C00 French Defense: Knight Variation } Bd6? { (0.24 → 1.45) Mistake. d5 was best. } (2... d5 3. exd5 exd5 4. d4 Nf6 5. Bd3 Bd6 6. O-O O-O 7. Bg5 Re8 8. Nbd2 Bg4 9. Re1) 3. Nc3 Nf6?? { (1.11 → 7.46) Blunder. Bb4 was best. } (3... Bb4 4. a3 Bxc3 5. dxc3 d6 6. e5 Nc6 7. Bb5 f6 8. Nd4 dxe5 9. Qg4 Qd7 10. Nxc6) 4. g3?? { (7.46 → 0.91) Blunder. e5 was best. } (4. e5 Bxe5 5. Nxe5 d6 6. Nf3 e5 7. d4 O-O 8. dxe5 dxe5 9. Qxd8 Rxd8 10. Bc4 Nc6) 4... O-O?? { (0.91 → 6.29) Blunder. Be7 was best. } (4... Be7 5. e5 Nd5 6. Bg2 O-O 7. O-O Nc6 8. Re1 Nxc3 9. dxc3 d6 10. Qe2 dxe5 11. Nxe5) 5. Bg2?? { (6.29 → 1.01) Blunder. e5 was best. } (5. e5 Bxe5 6. Nxe5 d6 7. Nf3 e5 8. d3 Nc6 9. Bg2 h6 10. O-O a5 11. h3 a4) 5... c5?? { (1.01 → 6.31) Blunder. Be7 was best. } (5... Be7 6. e5) 6. O-O?? { (6.31 → 0.60) Blunder. e5 was best. } (6. e5) 6... c4?? { (0.60 → 7.46) Blunder. Nc6 was best. } (6... Nc6 7. Re1 Bc7 8. Nb5 e5 9. c3 d6 10. Nxc7 Qxc7 11. h3 c4 12. d4 cxd3 13. Bg5) 7. Nb5?? { (7.46 → 1.76) Blunder. e5 was best. } (7. e5 Be7 8. exf6 Bxf6 9. d4 cxd3 10. cxd3 Nc6 11. d4 d5 12. h4 h6 13. Bf4 Bd7) 7... Bc5 8. b3? { (2.10 → 0.61) Mistake. e5 was best. } (8. e5 Ne8) 8... Nxe4 9. d3?? { (0.54 → -0.99) Blunder. bxc4 was best. } (9. bxc4 a6 10. Nbd4 Ba7 11. Nb3 d6 12. Ba3 Re8 13. d4 Bd7 14. c5 Bc6 15. c4 dxc5) 9... Nxf2 10. Qd2?? { (-0.66 → -8.91) Blunder. Rxf2 was best. } (10. Rxf2) 10... Ne4+ 11. Rf2 Nxd2 12. Bxd2 Qe7 13. d4 Bb6 14. Kf1 cxb3 15. cxb3 d6 16. Re2 e5 17. dxe5 Bf5 18. Nh4 dxe5 19. Nxf5 Qc5 20. Re4? { (-8.28 → Mate in 1) Checkmate is now unavoidable. Be3 was best. } (20. Be3 Qxb5) 20... Qf2# { Black wins by checkmate. } 0-1