[Event "Vidmar Memorial-02"]
[Site "Ljubljana/Portoroz"]
[Date "1973.04.22"]
[Round "15"]
[White "Portisch, Lajos"]
[Black "Gligoric, Svetozar"]
[Result "1/2-1/2"]

1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. cxd5 cxd5 8. Nc3 Nc6 9. Ne5 e6 10. Bg5 h6 11. Nxc6 bxc6 12. Bf4 Nd7 13. Qd2 g5 14. Bd6 Re8 15. e4 Nb6 16. Bc5 Nd7 17. Bd6 Nb6 18. Bc5 Nd7 1/2-1/2