Puzzles (3 cohencoins award for each match):
FEN
[Event "MrCohenOS Arena"]
[Site "https://cohenchessclub.com/ZQHpWKDx"]
[Date "2026.09.30"]
[White "Chance"]
[Black "Jacob6"]
[Result "1-0"]
[UTCDate "2026.09.30"]
[UTCTime "14:20:19"]
[WhiteElo "1612"]
[BlackElo "1515"]
[WhiteRatingDiff "+27"]
[BlackRatingDiff "-24"]
[BlackTitle "GM"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C42"]
[Opening "Russian Game: Damiano Variation"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4 { C42 Russian Game: Damiano Variation } 4. Bd3? { (1.22 → -0.14) Mistake. Qe2 was best. } (4. Qe2 Qe7 5. Qxe4 d6 6. d4 dxe5 7. dxe5 Nc6 8. Bb5 Qb4+ 9. Qxb4 Bxb4+ 10. c3 Be7) 4... Bd6?? { (-0.14 → 2.56) Blunder. d5 was best. } (4... d5 5. O-O) 5. Bxe4? { (2.56 → 0.99) Mistake. Nxf7 was best. } (5. Nxf7 Qe7 6. Nxd6+ Nxd6+ 7. Qe2 Qxe2+ 8. Bxe2 O-O 9. O-O b6 10. Re1 Nc6 11. c3 Bb7) 5... Bxe5 6. Qh5?! { (0.85 → 0.00) Inaccuracy. d4 was best. } (6. d4 Bf6 7. Nc3 O-O 8. O-O d6 9. Nd5 Nd7 10. c3 c6 11. Nxf6+ Nxf6 12. Bd3 Bg4) 6... O-O?? { (0.00 → Mate in 1) Checkmate is now unavoidable. Bf6 was best. } (6... Bf6 7. c4 g6 8. Qh6 Bg5 9. Qg7 Bf6) 7. Qxe5?? { (Mate in 1 → 1.51) Lost forced checkmate sequence. Qxh7# was best. } (7. Qxh7#) 7... d6?? { (1.51 → 5.81) Blunder. Re8 was best. } (7... Re8 8. Qf5 g6 9. Qf4 d5 10. d3 f5 11. Nc3 fxe4 12. dxe4 d4 13. Ne2 b6 14. O-O) 8. Qg3? { (5.81 → 3.27) Mistake. Qf4 was best. } (8. Qf4 d5) 8... Re8 9. Qe3?? { (3.32 → 0.19) Blunder. d3 was best. } (9. d3) 9... Rxe4?? { (0.19 → 7.21) Blunder. f5 was best. } (9... f5) 10. Qxe4 Qe8 11. Qxe8# { White wins by checkmate. } 1-0