[Event "October Revolution 50years"]
[Site "Moscow"]
[Date "1967.06.03"]
[Round "10"]
[White "Gipslis, Aivars P"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bd7 6. c3 Nf6 7. d4 Be7 8. Re1 O-O 9. Nbd2 Re8 10. a3 Bf8 11. h3 a5 12. Bb3 a4 13. Bxa4 Nxd4 14. Bxd7 Nxf3+ 15. Qxf3 Nxd7 16. b4 Nb6 17. c4 Qd7 18. Ra2 Qe6 19. Rc2 g6 20. Qd3 Ra4 21. Nb1 c6 22. Rd1 Raa8 23. Be3 Na4 24. Nd2 f5 1/2-1/2