[Event "Interzonal-09a"]
[Site "Leningrad"]
[Date "1973.06.23"]
[Round "15"]
[White "Huebner, Robert"]
[Black "Cuellar Gacharna, Miguel"]
[Result "1-0"]

1. Nf3 Nf6 2. g3 g6 3. c4 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nc6 7. Nc3 e5 8. d5 Ne7 9. e4 Ne8 10. Ng5 h6 11. Nh3 f5 12. f4 Nf6 13. fxe5 dxe5 14. Nf2 g5 15. Nd3 Nxe4 16. Nxe4 fxe4 17. Bxe4 Bf5 18. Qe2 Bxe4 19. Qxe4 Rxf1+ 20. Kxf1 Qf8+ 21. Kg2 Qf5 22. Nf2 Qxe4+ 23. Nxe4 Nf5 24. b3 Nd6 25. Nxd6 cxd6 26. Ba3 Rd8 27. Rf1 g4 28. h3 gxh3+ 29. Kxh3 Rd7 30. Kg4 Bf8 31. Rf6 Rg7+ 32. Kh3 Rd7 33. Re6 a6 34. Kg4 b5 35. cxb5 axb5 36. Bb4 Kf7 37. Kf5 Rd8 38. g4 Kg7 39. a3 Rd7 40. Rf6 Kg8 41. Rg6+ Kh7 42. Re6 Kg8 43. Bd2 Kh7 44. Re8 Rf7+ 45. Ke6 Kg6 46. a4 bxa4 47. bxa4 Rf6+ 48. Kd7 Rf2 49. Be3 Rf3 50. Bb6 Kf7 51. a5 Ra3 52. Re6 Ra1 53. Kc6 Be7 54. Kb7 1-0