[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1971.01.22"]
[Round "9"]
[White "Najdorf, Miguel"]
[Black "Andersson, Ulf"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nbd7 8. Re1 Re8 9. d5 a5 10. Bg5 h6 11. Bh4 g5 12. Bg3 Nh5 13. Nd2 Nf4 14. Bg4 Nc5 15. Bxc8 Qxc8 16. Nf1 f5 17. f3 Rf8 18. exf5 Qxf5 19. Ne4 b6 20. Ne3 Qg6 21. Qc2 Nfd3 22. Re2 Kh7 23. Rd1 Nxe4 24. fxe4 Nc5 25. Nf5 Rf7 26. Rf1 Raf8 27. Ref2 h5 28. Rf3 Bh6 29. Be1 g4 30. R3f2 Bg5 31. b4 axb4 32. Bxb4 Nd7 33. a4 Nf6 34. g3 Ne8 35. a5 bxa5 36. Bxa5 Ng7 37. Nxg7 Kxg7 38. Rf5 Rxf5 39. exf5 Qf7 40. Bd2 Qf6 41. h4 gxh3 42. Kh2 Bxd2 43. Qxd2 Qh6 44. Qf2 Qg5 45. c5 Rf7 46. cxd6 cxd6 47. Kxh3 1/2-1/2