[Event "San Antonio"]
[Site "San Antonio"]
[Date "1972.12.04"]
[Round "12"]
[White "Browne, Walter Shawn"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 e6 3. Nc3 Nf6 4. d4 cxd4 5. Nxd4 d6 6. g3 Nc6 7. Bg2 Bd7 8. O-O Be7 9. Re1 O-O 10. Nxc6 Bxc6 11. a4 Qd7 12. Re3 Rfd8 13. Rd3 Ne8 14. b3 b6 15. Ba3 a6 16. Qd2 Qc7 17. Re1 Rdc8 18. Ne2 Bf8 19. Bb4 Nf6 20. Nd4 Bb7 21. c4 Nd7 22. f4 Nc5 23. Rde3 Re8 24. Kh1 Rac8 25. a5 Ba8 26. axb6 Qxb6 27. Ba5 1/2-1/2