[Event "October Revolution 50years"]
[Site "Moscow"]
[Date "1967.05.25"]
[Round "4"]
[White "Petrosian, Tigran V"]
[Black "Najdorf, Miguel"]
[Result "1-0"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O cxd4 9.
exd4 O-O 10. Re1 Nf6 11. Bg5 b6 12. Qe2 Bb7 13. Rad1 Nb4 14. Bb1 Rc8 15. Ne5 Nfd5 16. Bd2
Nf6 17. Qe3 Nfd5 18. Qh3 f5 19. a3 Na6 20. Ba2 Nac7 21. Ne2 Bg5 22. Qd3 Bxd2 23. Qxd2 Ne8
24. Nd3 g5 25. Nc3 Ng7 26. Nxd5 Bxd5 27. Bxd5 exd5 28. Re5 a5 29. Rde1 f4 30. h4 h6 31.
hxg5 hxg5 32. Qe2 f3 33. Qe3 fxg2 34. Rxg5 Re8 35. Ne5 1-0