[Event "World Championship 25th"]
[Round "4"]
[Site "Moscow"]
[Date "1963.03.30"]
[White "Botvinnik, Mikhail"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]
[ECO "A35"]
[Opening "English Opening, Symmetrical"]
 1. c4   c5
 2. Nc3  Nc6
 3. Nf3  g6
 4. e3   Nf6
 5. d4   cxd4
 6. exd4 d5
 7. cxd5 Nxd5
 8. Qb3  Nxc3
 9. Bc4  e6
10. bxc3 Bg7
11. Ba3  Bf8
12. Bc1  Bg7
13. Bb5  Bd7
14. Ba3  Bf8
15. Bxf8 Kxf8
16. O-O  Kg7
17. Be2  b6
18. c4   Qf6
19. Qe3  Rhe8
20. Ne5  Rad8
21. Rad1 Qe7
22. c5   Nxe5
23. Qxe5+ Qf6
24. cxb6 axb6
1/2-1/2