[Event "Piatigorsky Cup 2nd"]
[Round "6"]
[Site "Santa Monica"]
[Date "1966"]
[White "Petrosian, Tigran V"]
[Black "Unzicker, Wolfgang"]
[Result "1/2-1/2"]
[ECO "A15"]
[Opening "English, 1...Nf6 (Anglo-Indian defence)"]
 1. c4   Nf6
 2. Nf3  e6
 3. Nc3  d5
 4. d4   c5
 5. e3   Nc6
 6. cxd5 exd5
 7. Be2  Be7
 8. O-O  O-O
 9. dxc5 Bxc5
10. b3   Be6
11. Bb2  Qe7
12. a3   Rfd8
13. Nb5  Rac8
14. Nbd4 Nxd4
15. Nxd4 Ne4
16. Bd3  Bd6
17. Qh5  h6
18. b4   Nf6
19. Qe2  Bg4
20. Qe1  Bd7
21. h3   Ne4
22. f4   Re8
23. Rf3  Qd8
24. Ne2  Be7
25. Rc1  Bf6
26. Rxc8 Bxc8
27. Qa1  Qb6
28. Bxf6 Nxf6
29. Nd4  Bd7
30. Kh2  Qc7
31. Ne2  Qb6
32. Nd4  Qc7
33. Qe1  Rc8
34. Ne2  Ba4
35. Bf5  Bd7
36. Bd3  Ba4
37. Bf5  Bd7
1/2-1/2