Petrosian, Tigran V VS Rodriguez Cordoba, Jesus R 1972.09.21

[Event "Olympiad-20 Preliminaries A"]
[Site "Skopje"]
[Date "1972.09.21"]
[Round "3"]
[White "Petrosian, Tigran V"]
[Black "Rodriguez Cordoba, Jesus R"]
[Result "1/2-1/2"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 c5 5. e4 O-O 6. Be2 cxd4 7. Nxd4 d6 8. Be3 Nc6 9. O-O Nxd4 10. Bxd4 Be6 11. Qd3 Rc8 12. b3 Qa5 13. f4 Rfe8 14. h3 Bd7 15. Qe3 Bc6 16. a3 Qc7 17. Rac1 Nd7 18. Bxg7 Kxg7 19. b4 b6 20. Bg4 Rcd8 21. Nd5 Qb8 22. Bxd7 Rxd7 23. b5 Bxd5 24. cxd5 e6 25. Rc6 Kg8 26. Qc3 exd5 27. exd5 Qd8 28. f5 Qg5 29. Kh1 gxf5 30. Rf3 f4 31. Qd4 Re3 32. Rc8+ Rd8 33. Rxd8+ Qxd8 34. Rxf4 Re5 35. Rg4+ Rg5 36. Re4 Rf5 37. Qc3 h5 38. Qc6 Qf6 1/2-1/2