[Event "Interzonal-09a"]
[Site "Leningrad"]
[Date "1973.06.17"]
[Round "11"]
[White "Huebner, Robert"]
[Black "Radulov, Ivan"]
[Result "1-0"]

1. Nf3 Nf6 2. c4 e6 3. d4 d5 4. Nc3 dxc4 5. e4 c5 6. Bxc4 cxd4 7. Nxd4 Nbd7 8. O-O Bc5 9. Nb3 Be7 10. Qe2 e5 11. Be3 O-O 12. Rfd1 a6 13. a4 Bb4 14. Na2 Be7 15. a5 Qe8 16. f3 Nb8 17. Nc3 Bd7 18. Nc5 Bc6 19. Nd5 Bd8 20. Nb4 Qe7 21. Nd5 Qe8 22. Bd2 Kh8 23. Bb4 Rg8 24. Qd3 Nbd7 25. Nxf6 Nxf6 26. Qb3 Rf8 27. Nxb7 Be7 28. Nd6 Qb8 29. Ba3 Qa7+ 30. Kh1 Rab8 31. Qc3 Bb5 32. Bxb5 axb5 33. Bc5 1-0