[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1971.01.27"]
[Round "13"]
[White "Olafsson, Fridrik"]
[Black "Najdorf, Miguel"]
[Result "1/2-1/2"]
1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 O-O 5. Bg2 d6 6. d4 Nbd7 7. O-O e5 8. dxe5 Ng4 9. Na3 dxe5 10. h3 Nh6 11. e4 f6 12. Nc4 Nb6 13. Qxd8 Rxd8 14. Na5 Bf8 15. a3 Nf7 16. Rfd1 Re8 17. Ne1 Rb8 18. Nd3 Nd7 19. Bc1 Nc5 20. Be3 1/2-1/2