[Event "Interzonal-13a"]
[Site "Tunis"]
[Date "1985.05.03"]
[Round "6"]
[White "Chernin, Alexander"]
[Black "Zapata, Alonso"]
[Result "1-0"]
[WhiteElo "2495"]
[BlackElo "2535"]

1. c4 g6 2. Nc3 Bg7 3. g3 d6 4. Bg2 e5 5. d3 Nf6 6. e4 O-O 7. Nge2 a5 8. O-O c6 9. h3 Na6 10. Be3 Rb8 11. Ba7 Ra8 12. Be3 Rb8 13. d4 Be6 14. b3 Re8 15. Rc1 b5 16. d5 Bc8 17. dxc6 bxc4 18. bxc4 Rb2 19. Nd5 Nxd5 20. cxd5 Rxa2 21. Nc3 Rb2 22. Na4 Rb4 23. Nb6 Qc7 24. Nc4 f5 25. Bd2 fxe4 26. Bxb4 axb4 27. Nd2 Bh6 28. Nxe4 Bxc1 29. Nf6+ Kf7 30. Nxe8 Kxe8 31. Qxc1 Nc5 32. Qe3 Qe7 33. Ra1 Bf5 34. Ra8+ Kf7 35. Rb8 b3 36. Bf1 Kg7 37. Bc4 Bxh3 38. Bxb3 Bf5 39. Bc4 g5 40. Qf3 1-0