[Event "October Revolution 50years"]
[Site "Moscow"]
[Date "1967.05.30"]
[Round "7"]
[White "Najdorf, Miguel"]
[Black "Stein, Leonid"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. Be3 Nbd7 8. O-O a5 9. d5 Ng4 10. Bg5 f6 11. Bh4 h5 12. Nd2 Nh6 13. f3 Nf7 14. Bd3 Bh6 15. Qe2 Kh8 16. Bc2 Rg8 17. Kh1 Nf8 18. Bf2 Qe7 19. Rae1 Rg7 20. Be3 h4 21. Bxh6 Nxh6 22. Nd1 g5 23. Ne3 Ng6 24. Nb1 Bd7 25. Nc3 Nf4 26. Qf2 Rf8 27. Ne2 Rh7 28. a4 b6 29. b3 Nh5 30. h3 Qg7 31. Kh2 Qg6 32. Ng4 Rhf7 33. Qe3 f5 34. Nxh6 Qxh6 35. exf5 Bxf5 36. Bxf5 Rxf5 37. Rf2 Qg7 38. Kg1 R5f7 39. Nc3 Ng3 40. Ne4 Nxe4 41. Qxe4 1/2-1/2