[Event "October Revolution 50years"]
[Site "Moscow"]
[Date "1967.05.25"]
[Round "4"]
[White "Geller, Efim P"]
[Black "Portisch, Lajos"]
[Result "1-0"]
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 h6
10. d4 Re8 11. Nbd2 Bf8 12. Nf1 Bb7 13. Ng3 Qd7 14. dxe5 dxe5 15. Nh5 Qe7 16. Nh4 Nxh5 17.
Qxh5 Na5 18. Bg5 Qd7 19. Rad1 Bd6 20. Bxh6 gxh6 21. Qg6+ Kf8 22. Qf6 Kg8 23. Re3 1-0