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Puzzles (3 cohencoins award for each match):

Puzzle vLsZk: 999999999

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/HoJGeUpu"] [Date "2025.09.26"] [White "Abigail1"] [Black "Eitan1"] [Result "0-1"] [UTCDate "2025.09.26"] [UTCTime "23:47:47"] [WhiteElo "1024"] [BlackElo "1147"] [WhiteRatingDiff "-12"] [BlackRatingDiff "+9"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D00"] [Opening "Blackmar-Diemer Gambit"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 Nf6 2. d4?? { (0.91 → -0.86) Blunder. e5 was best. } (2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nf3 Be7 7. Nc3 Nc6 8. Be3 O-O) 2... d5?? { (-0.86 → 0.98) Blunder. Nxe4 was best. } (2... Nxe4 3. Nf3 g6 4. Bd3 Nf6 5. O-O Bg7 6. Re1 d6 7. c4 e6 8. Nc3 O-O 9. Bg5) 3. Nc3?? { (0.98 → -0.85) Blunder. e5 was best. } { D00 Blackmar-Diemer Gambit } (3. e5 Nfd7) 3... dxe4 4. Nxe4?? { (-0.68 → -6.79) Blunder. Bg5 was best. } (4. Bg5) 4... c5?? { (-6.79 → 1.50) Blunder. Nxe4 was best. } (4... Nxe4 5. Nf3) 5. Nf3?? { (1.50 → -5.99) Blunder. Nxc5 was best. } (5. Nxc5 Nc6) 5... cxd4?? { (-5.99 → 0.69) Blunder. Nxe4 was best. } (5... Nxe4 6. Bf4 cxd4 7. c3 Nc6 8. Bb5 Bd7 9. Qe2 dxc3 10. O-O a6 11. Bxc6 Bxc6 12. Ne5) 6. c3?? { (0.69 → -6.50) Blunder. Nxf6+ was best. } (6. Nxf6+ gxf6 7. Nxd4 e5 8. Nb5 Qxd1+ 9. Kxd1 Kd8 10. Be3 Nc6 11. Bc4 Be6 12. Bxe6 fxe6) 6... Nxe4 7. cxd4 Bg4 8. Ne5?! { (-6.13 → -12.35) Inaccuracy. Bb5+ was best. } (8. Bb5+ Nd7) 8... Bxd1 9. Kxd1 Qxd4+ 10. Bd2?! { (-17.00 → Mate in 1) Checkmate is now unavoidable. Ke2 was best. } (10. Ke2 Qxe5 11. f4 Qd4 12. Be3 Qxb2+ 13. Kf3 Nc6 14. Rd1 Nc3 15. Rd3 a6 16. Rg1 Qb4) 10... Nxf2+?! { (Mate in 1 → -18.51) Lost forced checkmate sequence. Qxd2# was best. } (10... Qxd2#) 11. Ke2 Nxh1 12. Rc1 Qf2+ 13. Kd3 h5?? { (-19.19 → Mate in 1) Checkmate is now unavoidable. Na6 was best. } (13... Na6) 14. Nc6?? { (Mate in 1 → -25.34) Lost forced checkmate sequence. Rc8# was best. } (14. Rc8#) 14... Rh6 15. Be2 Rd6+ 16. Nd4 Qxd4+ 17. Kc2 Qxd2+ 18. Kb1 Rc6 19. Ka1?! { (-30.53 → Mate in 1) Checkmate is now unavoidable. Rc3 was best. } (19. Rc3 Qe1+) 19... Rxc1# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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