[Event "October Revolution 50years"]
[Site "Moscow"]
[Date "1967.06.10"]
[Round "14"]
[White "Najdorf, Miguel"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6 8. cxd5 exd5 9. Bd3 c6 10. O-O Re8 11. Qb3 Nf8 12. Na4 Nh5 13. Bxe7 Rxe7 14. Nb6 Rb8 15. Nxc8 Rxc8 16. Qc2 a5 17. a3 Nf6 18. b4 axb4 19. axb4 g6 20. b5 Rec7 21. Qb2 Ne6 22. Ra1 c5 23. dxc5 Rxc5 24. Rfd1 Qe7 25. h3 Ne4 26. Ra7 Rc3 27. b6 Qf6 28. Bf1 N6c5 29. Rxd5 Rb3 30. Qxf6 Nxf6 31. Rd1 Rxb6 32. Ne5 Nce4 33. f3 Nc3 34. Re1 Re6 35. Nd3 Re7 36. e4 Kf8 37. Rea1 Rec7 38. Nb4 Ne8 39. Kh2 Nd6 40. h4 h5 41. Bd3 Ke7 1/2-1/2