[Event "Alekhine memorial"]
[Round "3"]
[Site "Moscow"]
[Date "1971.11.26"]
[White "Stein, Leonid"]
[WhiteElo "2605"]
[Black "Petrosian, Tigran V"]
[BlackElo "2640"]
[Result "1/2-1/2"]
[ECO "C41"]
[Opening "Philidor Defence"]
 1. e4   e5
 2. Nf3  d6
 3. d4   Nf6
 4. Nc3  Nbd7
 5. Bc4  Be7
 6. O-O  O-O
 7. a4   c6
 8. a5   h6
 9. Ba2  Re8
10. dxe5 dxe5
11. Qe2  Bf8
12. Rd1  Qc7
13. Nh4  Nc5
14. Nf5  Kh7
15. Qf3  Ng8
16. b4   Ne6
17. Rb1  g6
18. Ne3  Bg7
19. Nc4  Nd4
20. Qd3  Rd8
21. Qf1  Be6
22. Ne3  
1/2-1/2