[Event "Interzonal-09a"]
[Site "Leningrad"]
[Date "1973.06.03"]
[Round "1"]
[White "Radulov, Ivan"]
[Black "Quinteros, Miguel Angel"]
[Result "1-0"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nf6 7. O-O Bc5 8. Nb3 Ba7 9. Bg5 Qe5 10. Qd2 Nh5 11. Kh1 h6 12. Be3 g5 13. Na4 Qc7 14. c4 b6 15. Bd4 e5 16. Be3 d6 17. Rfd1 Nf6 18. f3 Nbd7 19. Bf1 Ke7 20. Rac1 Bb7 21. Nc3 Nc5 22. Na1 Rad8 23. b4 Ncd7 24. Bf2 Nf8 25. Nc2 Ng6 26. Ne3 Kf8 27. Nf5 Ne7 28. Nxe7 Kxe7 29. Be3 Bc8 30. Qf2 Be6 31. a4 Ra8 32. Nd5+ Bxd5 33. cxd5 Qb7 34. Rc6 Nd7 35. Rdc1 b5 36. Rc7 Bxe3 37. Qxe3 Qb8 38. a5 Rd8 39. g3 Kf8 40. Bh3 Nf6 41. Bc8 Ne8 42. R7c6 Qa7 43. Qxa7 Rxa7 44. Bxa6 Rb8 45. Bc8 Ke7 46. Rb6 Raa8 47. Bb7 Ra7 48. Bc6 1-0