Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/uChlKub0"]
[Date "2026.10.09"]
[White "Eitan1"]
[Black "Mark2"]
[Result "0-1"]
[UTCDate "2026.10.09"]
[UTCTime "23:46:44"]
[WhiteElo "1198"]
[BlackElo "1257"]
[WhiteRatingDiff "-7"]
[BlackRatingDiff "+7"]
[WhiteTitle "GM"]
[BlackTitle "࿄"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C42"]
[Opening "Russian Game: Italian Variation"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 e5 2. Bc4?! { (0.60 → -0.05) Inaccuracy. Nf3 was best. } (2. Nf3 Nc6 3. Bb5 Nge7 4. O-O Ng6 5. d4 exd4 6. Nxd4 Bc5 7. Nf5 O-O 8. Nc3 a6) 2... Nf6 3. Nf3?! { (0.08 → -0.82) Inaccuracy. Nc3 was best. } { C42 Russian Game: Italian Variation } (3. Nc3) 3... Nxe4 4. Nxe5 Qf6?? { (-0.73 → 1.27) Blunder. d5 was best. } (4... d5 5. Be2 Bd6 6. Nf3 O-O 7. O-O Re8 8. c4 dxc4 9. Bxc4 Bg4 10. d3 Nf6 11. Qb3) 5. Nxf7?? { (1.27 → Mate in 1) Checkmate is now unavoidable. Nf3 was best. } (5. Nf3 c6 6. d3 Nc5 7. d4 d5 8. dxc5 dxc4 9. O-O Bg4 10. Re1+ Be7 11. Na3 h6) 5... Qxf2# { Black wins by checkmate. } 0-1