[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1971.01.23"]
[Round "10"]
[White "Lengyel, Levente"]
[Black "Najdorf, Miguel"]
[Result "1/2-1/2"]
1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 Qb6 10. Re1 Re8 11. d5 Nc5 12. Rb1 a5 13. Be3 Qc7 14. Nd2 Bd7 15. Bf1 Reb8 16. dxc6 bxc6 17. Bxc5 dxc5 18. Na4 Bf8 19. Nb3 Qa7 20. Qf3 Nh5 21. Qe3 Be8 22. Nbxc5 Rd8 23. Rbd1 Ng7 1/2-1/2