[Event "Sao Paulo International"]
[Site "Sao Paulo"]
[Date "1978.05.26"]
[Round "4"]
[White "Filguth, Rubens Alberto"]
[Black "Najdorf, Miguel"]
[Result "0-1"]
[WhiteElo "2350"]
[BlackElo "2525"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. c3 Nf6 6. Re1 a6 7. Bf1 Bg4 8. h3 Bh5 9. d3
e6 10. Nbd2 Be7 11. Qc2 d5 12. g3 d4 13. Bg2 Nd7 14. Nh2 g5 15. Ndf1 Nde5 16. g4 Bg6 17.
Rd1 h5 18. a3 hxg4 19. hxg4 Rh4 20. Qe2 Bd6 21. Bd2 a5 22. Ng3 a4 23. Rf1 Kd7 24. f4 gxf4
25. Bxf4 Rxh2 26. Kxh2 Qh4+ 27. Bh3 Rh8 28. Nh5 Bxh5 0-1