[Event "Rated classical game"] [Site "https://lichess.org/eHaSp5IB"] [Date "2019.12.07"] [White "Oboed"] [Black "luisroberto"] [Result "1-0"] [UTCDate "2019.12.07"] [UTCTime "06:23:55"] [WhiteElo "1895"] [BlackElo "1791"] [WhiteRatingDiff "+79"] [BlackRatingDiff "-4"] [Variant "Standard"] [TimeControl "900+15"] [ECO "D30"] [Opening "Queen's Gambit Declined"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 d5 2. c4 e6 { D30 Queen's Gambit Declined } 3. Nf3 Bb4+ 4. Bd2 Bd6 5. Qc2 Nf6 6. cxd5? { (0.82 → -0.39) Mistake. Nc3 was best. } (6. Nc3 Nbd7 7. c5 Be7 8. e3 c6 9. Bd3 Qc7 10. O-O e5 11. e4 exd4 12. exd5 Nxc5) 6... Nxd5?? { (-0.39 → 1.35) Blunder. exd5 was best. } (6... exd5) 7. a3 b6?? { (1.53 → 3.61) Blunder. Nc6 was best. } (7... Nc6 8. e4) 8. e4 Nf4 9. e5 Nxg2+?! { (4.46 → 5.80) Inaccuracy. Nd5 was best. } (9... Nd5 10. exd6) 10. Bxg2 Be7 11. Ng5 Bxg5 12. Bxa8 Bxd2+ 13. Qxd2 Ba6 14. Nc3 Nd7 15. Bc6 O-O 16. Nb5 Bxb5 17. Bxb5 f6 18. O-O-O f5 19. f4 Rf7 20. d5 Nc5 21. Bc4 Rd7 22. dxe6 Nd3+?! { (20.43 → Mate in 8) Checkmate is now unavoidable. Rd4 was best. } (22... Rd4 23. Qxd4) 23. Kb1?! { (Mate in 8 → 16.58) Lost forced checkmate sequence. Qxd3 was best. } (23. Qxd3 Kh8 24. Qxd7 Qg8 25. Qd8 h5 26. Qxg8+ Kxg8 27. e7+ Kh7 28. e8=Q g6 29. Qg8+ Kh6) 23... Kh8 24. exd7 Qxd7?! { (29.65 → Mate in 7) Checkmate is now unavoidable. Nxb2 was best. } (24... Nxb2 25. Kxb2) 25. Qxd3 Qa4 26. Qd8+ Qe8 27. Qxe8# { White wins by checkmate. } 1-0