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Puzzles (3 cohencoins award for each match):

Puzzle 4QION: 739

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/ff9T57q9"] [Date "2025.09.10"] [White "LuNa"] [Black "PawnKing"] [Result "0-1"] [UTCDate "2025.09.10"] [UTCTime "20:38:45"] [WhiteElo "899"] [BlackElo "1334"] [WhiteRatingDiff "-3"] [BlackRatingDiff "+3"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C30"] [Opening "King's Gambit Declined: Queen's Knight Defense"] [Termination "Time forfeit"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. f4? { (0.60 → -0.45) Mistake. 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... Nc6 { C30 King's Gambit Declined: Queen's Knight Defense } 3. fxe5?? { (0.00 → -6.93) Blunder. Nf3 was best. } (3. Nf3 exf4 4. d4 g5 5. d5 g4 6. dxc6 gxf3 7. Qxf3 Qh4+ 8. g3 fxg3 9. hxg3 Qf6) 3... Nxe5?? { (-6.93 → 0.46) Blunder. Qh4+ was best. } (3... Qh4+) 4. Nf3?! { (0.46 → -0.08) Inaccuracy. Nc3 was best. } (4. Nc3 Bb4 5. Nf3 d6 6. d4 Nxf3+ 7. Qxf3 Qh4+ 8. g3 Qg4 9. Qxg4 Bxg4 10. Bg2 Bxc3+) 4... Bd6?? { (-0.08 → 2.17) Blunder. Nxf3+ was best. } (4... Nxf3+) 5. Nxe5?? { (2.17 → -2.15) Blunder. d4 was best. } (5. d4 Nxf3+) 5... Bxe5?? { (-2.15 → 0.12) Blunder. Qh4+ was best. } (5... Qh4+ 6. g3 Qxe4+ 7. Qe2 Qxe2+ 8. Bxe2 Bxe5 9. O-O c6 10. c3 Bc7 11. d4 d5 12. Bd3) 6. Qh5?? { (0.12 → -2.34) Blunder. g3 was best. } (6. g3) 6... Qf6?? { (-2.34 → -0.01) Blunder. Qe7 was best. } (6... Qe7 7. Be2) 7. Bc4 Bd4?? { (-0.13 → 3.06) Blunder. g6 was best. } { Black wins on time. } (7... g6) 0-1
Computer analysisMove timesCrosstableFEN & PGN
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