[Event "Interzonal-07"]
[Site "Sousse"]
[Date "1967.10.24"]
[Round "7"]
[White "Ivkov, Borislav"]
[Black "Bilek, Istvan"]
[Result "1/2-1/2"]

1. d4 g6 2. e4 Bg7 3. c4 d6 4. Nc3 Nf6 5. Nf3 O-O 6. Be2 c6 7. O-O Bg4 8. Be3 Nbd7 9. Nd2 Bxe2 10. Qxe2 a6 11. a4 Nh5 12. g3 e6 13. f4 f5 14. Nf3 fxe4 15. Nxe4 Ndf6 16. Neg5 Qd7 17. Bd2 Rae8 18. Rae1 Re7 19. Bc3 Rfe8 20. Ne5 Qc7 21. Nxg6 hxg6 22. g4 1/2-1/2