[Event "Interzonal-09a"]
[Site "Leningrad"]
[Date "1973.06.22"]
[Round "14"]
[White "Estevez Morales, Guillermo"]
[Black "Huebner, Robert"]
[Result "1-0"]

1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 Be7 7. Bb5 a6 8. Bxc6 bxc6 9. Na5 Nb8 10. O-O c5 11. c4 O-O 12. dxc5 Bxc5 13. Bg5 Qd7 14. Nb3 Ba7 15. Rc1 Bb7 16. c5 f6 17. Bf4 Nc6 18. Re1 Rae8 19. Nbd4 Nd8 20. b4 c6 21. a4 Bb8 22. Bg3 h6 23. h4 Qf7 24. Qd2 Qh5 25. b5 Rf7 26. Rb1 Bc7 27. Qd3 axb5 28. axb5 cxb5 29. Qxb5 Rfe7 30. c6 Bc8 31. Ra1 fxe5 32. Bxe5 Bxe5 33. Rxe5 Qg6 34. Ra8 Rc7 35. Qb6 Qf7 36. Re2 Qf4 37. g3 Rxc6 38. Qxc6 Qxf3 39. Qxc8 Qd3 40. Qc5 1-0