Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/YuPXvgtJ"]
[Date "2026.03.20"]
[White "Mark2"]
[Black "Eli4"]
[Result "1-0"]
[UTCDate "2026.03.20"]
[UTCTime "23:22:01"]
[WhiteElo "1213"]
[BlackElo "737"]
[WhiteRatingDiff "+1"]
[BlackRatingDiff "-2"]
[WhiteTitle "࿄"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C40"]
[Opening "King's Knight Opening"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 e5 2. Nf3 { C40 King's Knight Opening } g6? { (0.41 → 1.94) Mistake. Nc6 was best. } (2... Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Ba4 Be7 7. Nxe5 Nxe5 8. Rxe5 O-O 9. Bb3) 3. Nxe5 Nf6?! { (2.24 → 3.14) Inaccuracy. Bg7 was best. } (3... Bg7 4. d4 Nf6 5. Nc3 O-O 6. Bc4 Nc6 7. O-O d5 8. exd5 Nxe5 9. dxe5 Ng4 10. Be2) 4. Qe2?? { (3.14 → 0.29) Blunder. Bc4 was best. } (4. Bc4 d5 5. exd5 Bg7 6. Nc3 O-O 7. d4 Nbd7 8. Nxd7 Bxd7 9. O-O a6 10. Be2 Re8) 4... Nxe4?? { (0.29 → 6.87) Blunder. Bg7 was best. } (4... Bg7) 5. Qc4?? { (6.87 → -1.44) Blunder. Qxe4 was best. } (5. Qxe4) 5... Qe7?? { (-1.44 → 0.66) Blunder. d5 was best. } (5... d5 6. Qa4+ Nd7 7. Nxd7 Bxd7 8. Qd4 Nf6 9. Be2 Be7 10. d3 O-O 11. O-O c5 12. Qf4) 6. Na3?? { (0.66 → -8.72) Blunder. Qxe4 was best. } (6. Qxe4 d6 7. d4 dxe5 8. Qxe5 Qxe5+ 9. dxe5 Nc6 10. Bg5 Be7 11. Bxe7 Kxe7 12. f4 Bf5) 6... f6?? { (-8.72 → 0.00) Blunder. Qxe5 was best. } (6... Qxe5 7. d4) 7. Qxc7?? { (0.00 → -3.10) Blunder. Qxe4 was best. } (7. Qxe4 d6) 7... Na6 8. Nb5?? { (-3.37 → -10.29) Blunder. Bxa6 was best. } (8. Bxa6 bxa6) 8... Nb4?? { (-10.29 → -2.53) Blunder. Nxc7 was best. } (8... Nxc7 9. Nxc7+) 9. Nxa7?? { (-2.53 → -8.99) Blunder. c3 was best. } (9. c3 Nc2+) 9... Rxa7?? { (-8.99 → 1.80) Blunder. Qxe5 was best. } (9... Qxe5) 10. Qxc8+ Qd8 11. Qc4 Rxa2?? { (1.45 → Mate in 1) Checkmate is now unavoidable. Qe7 was best. } (11... Qe7 12. Qxe4 Qxe5 13. Qxe5+ fxe5 14. Kd1 Nxa2 15. Rb1 d5 16. Bb5+ Ke7 17. h4 Nxc1 18. Kxc1) 12. Qf7# { White wins by checkmate. } 1-0