[Event "Mar del Plata"] [Site "Mar del Plata"] [Date "1957.??.??"] [Round "?"] [White "Jose Thiago Mangini (?)"] [Black "Miguel Najdorf (?)"] [Result "0-1"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "B92"] [Opening "Sicilian Defense: Najdorf Variation, Opocensky Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 { B92 Sicilian Defense: Najdorf Variation, Opocensky Variation } e5 7. Nb3 Be7 8. Be3 Be6 9. O-O O-O 10. a4 Nc6 11. f3 Nb4 12. Re1 Rc8 13. Nc1 d5 14. exd5 Nfxd5 15. Nxd5 Nxd5 16. Bf2 Qc7 17. c3 Nf4 18. Bf1 Rfd8 19. Qc2 g6 20. g3 Bf5 21. Qb3 Nh3+ 22. Bxh3 Bxh3 23. Qb6 Qd7 24. Nb3?? { (-1.28 → -3.86) Blunder. Qe3 was best. } (24. Qe3 f6 25. Qe2 Qd5 26. Bb6 Rd7 27. a5 Be6 28. Kg2 g5 29. h3 Kg7 30. Qf2 h5 31. Ne2 Qd2) 24... Qd5 25. Na5?? { (-3.69 → -10.13) Blunder. Qe3 was best. } (25. Qe3 Qxb3 26. Qxe5 Bf8 27. g4 Bd6 28. Qe2 Bf4 29. Red1 Re8 30. Ra3 Qxa3 31. Qxe8+ Rxe8 32. bxa3 Re2) 25... Qxf3 26. Qxb7 Rd5 { White resigns. } 0-1