[Event "Masthanaiah chess world 1978"] [Site "https://lichess.org/ku0An0cT"] [Date "2023.04.09"] [White "sdg501"] [Black "rama1572"] [Result "1-0"] [UTCDate "2023.04.09"] [UTCTime "14:15:46"] [WhiteElo "1655"] [BlackElo "2053"] [WhiteRatingDiff "+28"] [BlackRatingDiff "-10"] [Variant "Standard"] [TimeControl "600+5"] [ECO "B40"] [Opening "Sicilian Defense: Four Knights Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Nf6 { B40 Sicilian Defense: Four Knights Variation } 6. e5?? { (0.43 → -1.85) Blunder. Nxc6 was best. } (6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Bb4+) 6... Nxe5 7. Bg5 Be7 8. f4 Nc6 9. Nxc6 bxc6 10. Bc4 d5 11. Bb3 Ba6 12. Ba4?! { (-2.78 → -3.72) Inaccuracy. Qf3 was best. } (12. Qf3 O-O) 12... Qd6?! { (-3.72 → -2.54) Inaccuracy. Qb6 was best. } (12... Qb6 13. Qf3 Rb8 14. Bb3 c5 15. Ba4+ Kf8 16. b3 h6 17. Bh4 Bb7 18. f5 d4 19. Qg3) 13. Qd2 O-O 14. O-O-O Rab8 15. h4 h6 16. Bxf6 Bxf6 17. g4?! { (-3.91 → -5.29) Inaccuracy. Bb3 was best. } (17. Bb3 Rb4 18. g3 c5 19. a3 Rd4 20. Qe3 Qc7 21. Qf2 Rb8 22. f5 Rxd1+ 23. Nxd1 c4) 17... Qb4?! { (-5.29 → -3.47) Inaccuracy. Bxc3 was best. } (17... Bxc3 18. Qxc3 Qxf4+ 19. Kb1 Qxa4 20. b3 Qf4 21. Rhe1 Qd6 22. g5 h5 23. Qf3 g6 24. Qf6) 18. Bb3 Bxc3 19. Qxc3 Qxf4+ 20. Kb1 Rfc8 21. Rdf1?? { (-2.82 → -6.09) Blunder. Rhg1 was best. } (21. Rhg1 c5 22. g5 d4 23. Qa5 Be2 24. Qd2 Qxd2 25. Rxd2 Bh5 26. gxh6 g6 27. Bc4 Kh7) 21... Bxf1 22. g5 h5 23. Rg1 c5 24. g6 fxg6 25. Rxg6 c4?? { (-6.20 → Mate in 1) Checkmate is now unavoidable. Qd4 was best. } (25... Qd4 26. Qe1 c4 27. Qxf1 Rf8 28. Qe1 cxb3 29. axb3 Qe4 30. Rxe6 Qxe1+ 31. Rxe1 Rfe8 32. Rc1) 26. Qxg7# { White wins by checkmate. } 1-0