[Event "Interzonal-09a"]
[Site "Leningrad"]
[Date "1973.06.19"]
[Round "12"]
[White "Radulov, Ivan"]
[Black "Tukmakov, Vladimir B"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 h6 7. Be2 Nc6 8. Be3 a6 9. Rg1 Be7 10. Qd2 Nxd4 11. Bxd4 e5 12. Be3 Be6 13. h4 d5 14. exd5 Nxd5 15. O-O-O Nxe3 16. Qxe3 Qa5 17. g5 hxg5 18. Bg4 f5 19. Bxf5 Bxf5 20. Rd5 Qc7 21. Rxe5 g6 22. Re1 Rh7 23. Qxg5 Kf8 24. Rxe7 Rxe7 25. Qf6+ Ke8 26. Qh8+ Kf7 27. Qh7+ Kf8 28. Rxe7 Qxe7 29. Qh8+ Kf7 30. Qxa8 g5 31. h5 Qe1+ 32. Nd1 Qe4 33. Ne3 Qh1+ 34. Kd2 Qf3 35. Ke1 Qh1+ 36. Kd2 Qf3 37. Ke1 Qh1+ 38. Kd2 Qf3 39. Kc3 Qc6+ 40. Kd2 1/2-1/2