[Event "Interzonal-11b"]
[Site "Rio de Janeiro"]
[Date "1979.10.20"]
[Round "19"]
[White "Smejkal, Jan"]
[Black "Balashov, Yuri S"]
[Result "1/2-1/2"]
[WhiteElo "2550"]
[BlackElo "2600"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bc5 5. Bg2 d6 6. O-O O-O 7. a3 a6 8. e3 Ba7 9. d4 Bg4 10. d5 Ne7 11. h3 Bd7 12. b4 h6 13. Bb2 Nh7 14. Rc1 Ng6 15. Kh2 f5 16. c5 Ng5 17. Nxg5 Qxg5 18. c6 Bc8 19. f4 Qe7 20. Re1 Qf7 21. Qd2 Kh7 22. Ne2 Re8 23. fxe5 dxe5 24. e4 f4 25. gxf4 bxc6 26. f5 Nh4 27. Rxc6 Bb7 28. Rc2 Nxg2 29. Kxg2 Rad8 30. Qc1 Rxd5 31. Ng3 Rd7 32. Rd1 Bd4 33. Rcd2 h5 34. h4 Qf6 35. Re2 Bxb2 36. Rxb2 Rxd1 37. Qxd1 Qxh4 38. Qf3 Rd8 39. Re2 Rd4 40. f6 gxf6 41. Qf5+ Kg7 42. Nxh5+ Kh8 43. Qxf6+ Qxf6 1/2-1/2