[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1971.01.27"]
[Round "13"]
[White "Kortschnoj, Viktor Lvovich"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]

1. g3 d5 2. Nf3 c6 3. Bg2 Nf6 4. O-O Bg4 5. d3 Nbd7 6. h3 Bxf3 7. Bxf3 e6 8. Bg2 Qc7 9. c4 dxc4 10. dxc4 Be7 11. Nc3 O-O 12. Qc2 Rfd8 13. Na4 Nc5 14. Be3 Qa5 15. Nc3 Qb4 16. b3 e5 17. Qb2 Ne6 18. a3 Qa5 19. b4 Qc7 20. Rac1 g6 21. Rfd1 Rxd1+ 22. Rxd1 h5 23. Rc1 Nd4 24. Bg5 Rc8 25. h4 Ng4 26. f3 Nf6 27. e3 Ne6 28. Bh3 Nxg5 29. hxg5 Nd7 30. Ne4 Rd8 31. Qc2 Nf8 32. Rd1 Rxd1+ 33. Qxd1 a5 34. Qd2 axb4 35. axb4 b6 36. Kg2 Qd8 37. Qxd8 Bxd8 38. f4 exf4 39. exf4 Kg7 40. Kf3 Be7 41. b5 cxb5 42. cxb5 Nh7 1/2-1/2