[Event "October Revolution 50"]
[Round "16"]
[Site "Moscow"]
[Date "1967.06.12"]
[White "Portisch, Lajos"]
[Black "Smyslov, Vassily"]
[Result "0-1"]
[ECO "E41"]
[Opening "Nimzo-Indian, 4.e3 c5"]
 1. d4   Nf6
 2. c4   e6
 3. Nc3  Bb4
 4. e3   c5
 5. Nf3  O-O
 6. Bd3  d5
 7. O-O  dxc4
 8. Bxc4 Qe7
 9. a3   Ba5
10. Qc2  Bd7
11. Bd2  Rc8
12. Bd3  cxd4
13. exd4 h6
14. Rfe1 Qd8
15. Qc1  Qf8
16. Ne5  Nc6
17. Nxd7 Nxd7
18. Re4  f5
19. Re1  Nxd4
20. Qd1  Nf6
21. Be3  e5
22. Qa4  Bb6
23. Bxd4 exd4
24. Ne2  Ne4
25. Nf4  Rc6
26. g3   Qf7
27. Bb1  Kh8
28. Ba2  Qf6
29. Bd5  d3
30. Bxc6 Bxf2+
31. Kh1  Qxc6
32. Qxc6 bxc6
33. Red1 d2
34. Kg2  Bd4
35. Rab1 Rb8
36. Ne2  Bxb2
37. Kf3  Rb3+
38. Kf4  Nd6
39. Rxd2 g5#
0-1