[Event "Interzonal-09a"]
[Site "Leningrad"]
[Date "1973.06.08"]
[Round "5"]
[White "Radulov, Ivan"]
[Black "Gligoric, Svetozar"]
[Result "1/2-1/2"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. Nd5 Nxd5 7. exd5 Nd4 8. Nxd4 exd4 9. a3 Be7 10. Be2 c5 11. c4 d6 12. b4 1/2-1/2