[Event "Interzonal-07"]
[Site "Sousse"]
[Date "1967.11.14"]
[Round "22"]
[White "Gipslis, Aivars P"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 Nbd7 11. c4 c6 12. cxb5 axb5 13. Nc3 Ba6 14. a3 c5 15. dxe5 dxe5 16. Nd5 Nxd5 17. Bxd5 1/2-1/2