[Event "Interzonal-09a"]
[Site "Leningrad"]
[Date "1973.06.13"]
[Round "8"]
[White "Radulov, Ivan"]
[Black "Smejkal, Jan"]
[Result "0-1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 e5 6. Nc3 Nc6 7. O-O Nge7 8. Nd5 Nxd5 9. cxd5 Nb4 10. d3 Be7 11. Ne1 O-O 12. Bd2 f5 13. a3 Na6 14. Nc2 fxe4 15. dxe4 c4 16. Ne3 Nc5 17. Nxc4 Nxe4 18. Rc1 Qb5 19. Bb4 a5 20. Qg4 axb4 21. Qxe4 Rf4 22. Qc2 Rc8 23. Nxd6 Rxc2 24. Nxb5 Rfxf2 25. Rxc2 Rxc2 26. d6 Bd8 27. axb4 Bb6+ 28. Kh1 e4 29. Nc3 e3 30. Rd1 Rxb2 31. g3 Rd2 32. Rxd2 exd2 33. Kg2 Kf7 34. Kf3 Bd4 35. Nd1 Ke6 36. Ke2 Kxd6 37. Kxd2 Kd5 38. b5 Kc4 39. b6 Bxb6 40. Nb2+ Kd4 41. Nd3 Ba5+ 42. Ke2 Bc7 43. Ne1 b5 44. Nf3+ Kc3 45. Kd1 Kd3 46. Ng5 h6 47. Ne6 Be5 48. g4 g5 49. h3 Ke3 50. Nd8 Kf3 51. Nf7 Bg7 52. Nd6 b4 53. Nf5 Bf8 54. Kc2 Kg2 55. h4 Kf3 56. Nxh6 gxh4 0-1