Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/vgOWmNtv"]
[Date "2026.07.19"]
[White "Troy"]
[Black "Aaron9"]
[Result "0-1"]
[UTCDate "2026.07.19"]
[UTCTime "17:04:15"]
[WhiteElo "1392"]
[BlackElo "1143"]
[WhiteRatingDiff "-15"]
[BlackRatingDiff "+35"]
[WhiteTitle "NM⚔"]
[BlackTitle "NM"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C68"]
[Opening "Ruy Lopez: Exchange Variation, Lutikov Variation"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 bxc6?! { (0.14 → 0.85) Inaccuracy. dxc6 was best. } { C68 Ruy Lopez: Exchange Variation, Lutikov Variation } (4... dxc6 5. O-O Qf6 6. d4 exd4 7. Bg5 Qd6 8. Nxd4 Bd7 9. Bh4 c5 10. Nf5 Qxd1 11. Rxd1) 5. Nxe5?! { (0.85 → 0.22) Inaccuracy. Nc3 was best. } (5. Nc3 d6) 5... Bd6?? { (0.22 → 2.02) Blunder. Qe7 was best. } (5... Qe7) 6. Nf3 Nf6?? { (1.70 → 8.07) Blunder. Ne7 was best. } (6... Ne7) 7. Nc3?? { (8.07 → 1.78) Blunder. e5 was best. } (7. e5 Qe7 8. O-O Bxe5 9. Nxe5 Qxe5 10. Re1 Qe6 11. Rxe6+ fxe6 12. Qf3 O-O 13. d3 e5) 7... a5?? { (1.78 → 7.63) Blunder. O-O was best. } (7... O-O 8. O-O Re8 9. Re1 Bf8 10. d3 h6 11. Bf4 d5 12. h3 Bb7 13. Qd2 c5 14. exd5) 8. d4?? { (7.63 → 1.93) Blunder. e5 was best. } (8. e5 Bxe5) 8... Bb4 9. e5 Ne4 10. Bd2?? { (1.74 → -0.17) Blunder. O-O was best. } (10. O-O) 10... Nxc3? { (-0.17 → 1.18) Mistake. Bxc3 was best. } (10... Bxc3) 11. Bxc3? { (1.18 → -0.08) Mistake. bxc3 was best. } (11. bxc3 Be7 12. O-O O-O 13. a4 Ba6 14. Re1 d6 15. Bf4 Re8 16. h3 Qd7 17. Nd2 c5) 11... Bxc3+ 12. bxc3 Ba6 13. Nd2 d6 14. exd6?? { (0.13 → -2.88) Blunder. c4 was best. } (14. c4 dxe5) 14... Qe7+?? { (-2.88 → 12.33) Blunder. O-O was best. } (14... O-O 15. c4) 15. Qe2?? { (12.33 → Mate in 1) Checkmate is now unavoidable. dxe7 was best. } (15. dxe7 Kxe7 16. Qf3 Rhe8 17. Qxc6 Kf8+ 18. Kd1 Kg8 19. Kc1 Rec8 20. c4 a4 21. f3 h6) 15... Qxe2# { Black wins by checkmate. } 0-1