[Event "Interzonal-11b"]
[Site "Rio de Janeiro"]
[Date "1979.10.03"]
[Round "9"]
[White "Shamkovich, Leonid Alexandrovic"]
[Black "Sax, Gyula"]
[Result "1/2-1/2"]
[WhiteElo "2495"]
[BlackElo "2590"]

1. e4 c5 2. Nc3 e6 3. Nge2 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. g3 d6 7. Bg2 Bd7 8. O-O Be7 9. b3 a6 10. Bb2 Rc8 11. Nxc6 Bxc6 12. a4 O-O 13. Re1 Qc7 14. Qe2 Rfe8 15. Rad1 Qb8 16. Rd2 d5 17. exd5 exd5 18. Qd1 Bb4 19. Rxe8+ Rxe8 20. Re2 Rd8 21. Qd4 Qd6 22. Nd1 Bc5 23. Qh4 d4 24. Bxc6 Qxc6 25. Qf4 h6 26. Qf5 Rd5 27. Qd3 Ng4 28. Qe4 Nf6 29. Qd3 Nd7 30. Qe4 Qd6 31. Kg2 Nf6 32. Qd3 h5 33. f3 h4 34. Nf2 hxg3 35. hxg3 Rg5 36. g4 Qc6 37. Bc1 Rg6 38. Kf1 Nd5 39. Bd2 Rf6 40. Ne4 Ne3+ 41. Kf2 1/2-1/2