Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/ZpDYTl6s"]
[Date "2025.12.09"]
[White "Henry5"]
[Black "Dylan1"]
[Result "0-1"]
[UTCDate "2025.12.09"]
[UTCTime "00:26:11"]
[WhiteElo "1408"]
[BlackElo "1213"]
[WhiteRatingDiff "-212"]
[BlackRatingDiff "+15"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C64"]
[Opening "Ruy Lopez: Classical Variation"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 { C64 Ruy Lopez: Classical Variation } 4. Bxc6? { (0.66 → -0.35) Mistake. c3 was best. } (4. c3 Nge7 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 d5 8. e5 a6 9. Ba4 O-O 10. h3 f6) 4... dxc6 5. O-O Nf6 6. Nxe5 Qe7? { (0.02 → 1.52) Mistake. Nxe4 was best. } (6... Nxe4 7. Qe2 Qd5 8. Nf3 O-O 9. d4 Bd6 10. c4 Qe6 11. Re1 Re8 12. Nbd2 Nf6 13. Qd1) 7. Nf3?! { (1.52 → 0.86) Inaccuracy. d4 was best. } (7. d4 Bd6 8. Nd3 Nxe4 9. Re1 O-O 10. Nd2 f5 11. c4 Qf7 12. c5 Be7 13. Nf3 Bf6) 7... O-O?? { (0.86 → 2.88) Blunder. Bg4 was best. } (7... Bg4 8. d3 O-O-O 9. Nbd2 Bh5 10. Qe1 Nd7 11. a3 Rhe8 12. b4 Bb6 13. Bb2 f5 14. exf5) 8. Nc3?? { (2.88 → -0.30) Blunder. e5 was best. } (8. e5 Nd7 9. d4 Bb6 10. Re1 Re8 11. a3 Qe6 12. Nc3 Nf8 13. Ne2 Ng6 14. h3 f6) 8... Nxe4 9. Nxe4 Qxe4 10. Ng5?! { (-0.25 → -1.07) Inaccuracy. Re1 was best. } (10. Re1 Qg6 11. d4 Bd6 12. Ne5 Qf6 13. Nc4 Be7 14. b3 Be6 15. Bb2 Bxc4 16. bxc4 Rfe8) 10... Qg6 11. Nf3?? { (-0.74 → -2.42) Blunder. d3 was best. } (11. d3 Re8 12. Bf4 Bf5 13. Nf3 Qf6 14. Bxc7 Qxb2 15. a4 Re7 16. Rb1 Qa2 17. Rxb7 Qxa4) 11... Bh3? { (-2.42 → -1.16) Mistake. Bg4 was best. } (11... Bg4 12. d3) 12. b4?? { (-1.16 → Mate in 1) Checkmate is now unavoidable. Nh4 was best. } (12. Nh4 Qe4 13. Qh5 Be7 14. d3 Qxh4 15. Qxh4 Bxh4 16. gxh3 Rfe8 17. Be3 Kf8 18. Rae1 Be7) 12... Qxg2# { Black wins by checkmate. } 0-1