Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/1UR8eZfz"]
[Date "2025.08.01"]
[White "Peter3"]
[Black "Sebastian1"]
[Result "1-0"]
[UTCDate "2025.08.01"]
[UTCTime "23:26:37"]
[WhiteElo "1344"]
[BlackElo "1204"]
[WhiteRatingDiff "+8"]
[BlackRatingDiff "-17"]
[BlackTitle "GM"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C40"]
[Opening "King's Pawn Game: Busch-Gass Gambit"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 e5 2. Nf3 Bc5? { (0.41 → 1.86) Mistake. Nc6 was best. } { C40 King's Pawn Game: Busch-Gass Gambit } (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. Bc4? { (1.86 → 0.34) Mistake. Nxe5 was best. } (3. Nxe5 Nc6) 3... Nf6?? { (0.34 → 1.99) Blunder. Nc6 was best. } (3... Nc6 4. O-O Nf6 5. d3 h6 6. c3 d6 7. Re1 a6 8. d4 Ba7 9. h3 O-O 10. Bb3) 4. Nxe5 Nxe4?? { (2.05 → 4.54) Blunder. O-O was best. } (4... O-O) 5. Qf3?? { (4.54 → 1.08) Blunder. Bxf7+ was best. } (5. Bxf7+ Kf8 6. d4 Nc6 7. dxc5 Nxe5 8. Bd5 Nxc5 9. b4 Na6 10. O-O Nxb4 11. Ba3 c5) 5... Bxf2+?? { (1.08 → 4.59) Blunder. Ng5 was best. } (5... Ng5 6. Bxf7+) 6. Kf1 Qh4? { (4.05 → 7.21) Mistake. Nf6 was best. } (6... Nf6 7. Qxf2) 7. Qxf7+ Kd8?! { (5.58 → 8.31) Inaccuracy. Kd8 was best. } (7... Kd8 8. Qxg7) 8. Qxg7 Be1? { (8.24 → Mate in 4) Checkmate is now unavoidable. Re8 was best. } (8... Re8 9. Nf7+) 9. Qxh8+?! { (Mate in 4 → 12.53) Lost forced checkmate sequence. Nf7+ was best. } (9. Nf7+ Ke7 10. Qe5+ Kf8 11. Qxh8+ Ke7 12. Qd8#) 9... Ke7 10. Qg7+ Kd6 11. Nf7+ Kc5? { (9.30 → Mate in 3) Checkmate is now unavoidable. Kc6 was best. } (11... Kc6 12. Qh6+ Qxh6 13. Nxh6 Bh4 14. Be2 Bg5 15. Nf7 d5 16. Nxg5 Nxg5 17. d3 Ne6 18. Nc3) 12. Qe5+ Kxc4 13. d3+ Kb4 14. c3+? { (Mate in 2 → 9.74) Lost forced checkmate sequence. a3+ was best. } (14. a3+ Ka4 15. b3#) 14... Ka4? { (9.74 → Mate in 1) Checkmate is now unavoidable. Nxc3 was best. } (14... Nxc3 15. bxc3+ Ka4 16. Qxe1 Qxe1+ 17. Kxe1 Nc6 18. Ng5 h5 19. Nd2 d6 20. Nde4 b5 21. Rf1) 15. b3# { White wins by checkmate. } 1-0