[Event "San Antonio IT"]
[Round "7"]
[Site "San Antonio"]
[Date "1972"]
[White "Petrosian, Tigran V"]
[WhiteElo "2645"]
[Black "Karpov, Anatoly"]
[BlackElo "2630"]
[Result "1/2-1/2"]
[ECO "E14"]
[Opening "Queen's Indian, 4.e3"]
 1. d4   Nf6
 2. c4   e6
 3. Nf3  b6
 4. e3   Bb7
 5. Nc3  d5
 6. Bd3  Be7
 7. O-O  O-O
 8. b3   c5
 9. Bb2  cxd4
10. Nxd4 dxc4
11. Bxc4 a6
12. Be2  b5
13. Bf3  Ra7
14. Bxb7 Rxb7
15. Qf3  Rd7
16. a4   bxa4
17. Nxa4 Qc7
18. Rfc1 Qb7
19. Nc5  Qxf3
20. gxf3 Bxc5
21. Rxc5 h6
22. Kg2  Rb7
23. f4   Kh7
24. Rac1 Rd8
25. R1c2 Ne4
26. Rc7  Rd7
27. Rxb7 Rxb7
28. Ba3  g5
29. Kf3  Nf6
1/2-1/2