[Event "October Revolution 50years"]
[Site "Moscow"]
[Date "1967.05.26"]
[Round "5"]
[White "Portisch, Lajos"]
[Black "Petrosian, Tigran V"]
[Result "1-0"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 e6 7. e3 Bd6 8. Bg3 O-O 9. Bd3 Re8 10. Ne5 Bxe5 11. dxe5 Nd7 12. f4 Qb6 13. O-O Qxe3+ 14. Kh1 Qb6 15. Qh5 Nf8 16. Rf3 Ng6 17. Bf2 Qd8 18. Nb5 Nce7 19. Nd6 Bd7 20. Bh4 Qb6 21. Rh3 h6 22. Bf6 Qxb2 23. Rf1 Nf5 24. Bxf5 1-0