[Event "World Championship 25th"]
[Round "1"]
[Site "Moscow"]
[Date "1963.03.23"]
[White "Petrosian, Tigran V"]
[Black "Botvinnik, Mikhail"]
[Result "0-1"]
[ECO "E35"]
[Opening "Nimzo-Indian, Classical, Noa Variation, 5.cxd5 exd5"]
 1. d4   Nf6
 2. c4   e6
 3. Nc3  Bb4
 4. Qc2  d5
 5. cxd5 exd5
 6. Bg5  h6
 7. Bxf6 Qxf6
 8. a3   Bxc3+
 9. Qxc3 c6
10. e3   O-O
11. Ne2  Re8
12. Ng3  g6
13. f3   h5
14. Be2  Nd7
15. Kf2  h4
16. Nf1  Nf8
17. Nd2  Re7
18. Rhe1 Bf5
19. h3   Rae8
20. Nf1  Ne6
21. Qd2  Ng7
22. Rad1 Nh5
23. Rc1  Qd6
24. Rc3  Ng3
25. Kg1  Nh5
26. Bd1  Re6
27. Qf2  Qe7
28. Bb3  g5
29. Bd1  Bg6
30. g4   hxg3
31. Nxg3 Nf4
32. Qh2  c5
33. Qd2  c4
34. Ba4  b5
35. Bc2  Nxh3+
36. Kf1  Qf6
37. Kg2  Nf4+
38. exf4 Rxe1
39. fxg5 Qe6
40. f4   Re2+
0-1