[Event "Interzonal-07"]
[Site "Sousse"]
[Date "1967.11.04"]
[Round "15"]
[White "Portisch, Lajos"]
[Black "Myagmarsuren, Lhamsuren"]
[Result "1-0"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 g6 5. Nf3 Bg7 6. Be2 O-O 7. O-O Nbd7 8. cxd5 Nxd5 9. e4 Nxc3 10. bxc3 e5 11. Rb1 exd4 12. cxd4 Nf6 13. Bd3 c5 14. dxc5 Qe7 15. Qc2 Bg4 16. Bg5 h6 17. Bh4 Bxf3 18. gxf3 g5 19. Bg3 Nh5 20. Bd6 Qd7 21. e5 Qh3 22. Bf5 Qh4 23. Qe4 Nf4 24. Rxb7 Rae8 25. c6 Re6 26. Bxe6 fxe6 27. Rxg7+ 1-0