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Puzzles (3 cohencoins award for each match):

Puzzle IPloD: 997

Puzzle J8XPm: 800

FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/uMrNYZee"] [Date "2025.09.19"] [White "Trekker"] [Black "David3"] [Result "0-1"] [UTCDate "2025.09.19"] [UTCTime "20:43:52"] [WhiteElo "1844"] [BlackElo "1511"] [WhiteRatingDiff "-12"] [BlackRatingDiff "+18"] [WhiteTitle "GM🎅"] [BlackTitle "IM🔱"] [Variant "Standard"] [TimeControl "420+2"] [ECO "D02"] [Opening "Queen's Gambit Declined: Baltic Defense, Pseudo-Slav"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. c4 c6 2. Nc3 d5 3. d4 Bf5? { (0.32 → 1.72) Mistake. dxc4 was best. } (3... dxc4 4. e3 b5 5. a4 b4 6. Ne4 Qd5 7. Nd2 c3 8. bxc3 bxc3 9. Nb1 Qa5 10. Qb3) 4. Nf3?! { (1.72 → 0.87) Inaccuracy. Qb3 was best. } (4. Qb3 Qb6 5. Qxb6 axb6 6. cxd5 Nf6 7. dxc6 bxc6 8. f3 Nd5 9. e4 Nxc3 10. bxc3 Bd7) 4... e6 { D02 Queen's Gambit Declined: Baltic Defense, Pseudo-Slav } 5. g3?! { (0.91 → 0.37) Inaccuracy. Qb3 was best. } (5. Qb3 Qc7 6. Bf4 dxc4 7. e4 cxb3 8. Bxc7 Bg6 9. a3 a5 10. Nd2 a4 11. Nxa4 Rxa4) 5... Nf6 6. Bg2 Bd6?! { (-0.03 → 0.63) Inaccuracy. h6 was best. } (6... h6 7. Qb3 Qb6 8. c5 Qxb3 9. axb3 Na6 10. Ne5 Nc7 11. f3 Nd7 12. Nxd7 Kxd7 13. e4) 7. O-O O-O 8. h3?! { (0.90 → 0.14) Inaccuracy. Nh4 was best. } (8. Nh4 Be4) 8... Nbd7 9. Kh2?! { (0.30 → -0.34) Inaccuracy. Nd2 was best. } (9. Nd2 Be7 10. e4 dxe4 11. Ndxe4 Nxe4 12. Nxe4 h6 13. Nc3 Nf6 14. g4 Bg6 15. Be3 b5) 9... Ne4 10. cxd5?! { (-0.50 → -1.16) Inaccuracy. Qb3 was best. } (10. Qb3 Nxc3 11. bxc3 Rb8 12. a4 Re8 13. a5 h6 14. c5 Bc7 15. c4 dxc4 16. Qxc4 e5) 10... exd5 11. Nxe4 Bxe4 12. Bd2 Nf6 13. Bg5 h6 14. Bd2 Nh5 15. Nh4?? { (-1.35 → -9.79) Blunder. Ne5 was best. } (15. Ne5 Bxg2 16. Kxg2 Qe7 17. g4 Nf6 18. Bf4 Bxe5 19. Bxe5 Nd7 20. Bf4 f5 21. e3 Rf6) 15... Bb8?? { (-9.79 → -1.39) Blunder. Qxh4 was best. } (15... Qxh4) 16. Bxe4 dxe4 17. e3?? { (-1.25 → -8.69) Blunder. Ng2 was best. } (17. Ng2 Re8) 17... Qc7?? { (-8.69 → 8.38) Blunder. Qxh4 was best. } (17... Qxh4) 18. Bb4?? { (8.38 → -9.15) Blunder. Qxh5 was best. } (18. Qxh5 a5 19. Qg4 Rd8 20. Qxe4 Ra6 21. Qg2 c5 22. f4 g5 23. Nf5 Rf6 24. fxg5 hxg5) 18... Nxg3 19. fxg3? { (-8.46 → Mate in 2) Checkmate is now unavoidable. Kg2 was best. } (19. Kg2) 19... Qxg3+ 20. Kh1 Qh2# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
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