[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1970.01.16"]
[Round "4"]
[White "Ree, Hans"]
[Black "Benko, Pal C"]
[Result "1/2-1/2"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nb6 6. Nf3 Bg7 7. O-O O-O 8. d3 Nc6 9. Be3 e5 10. a4 a5 11. Bxb6 cxb6 12. Nd2 Be6 13. Nc4 Re8 14. Qb3 Ra6 15. Ne4 Re7 16. Rac1 Nd4 17. Qd1 Rd7 18. Nc3 f5 19. Nb5 Nc6 20. Qd2 Bf8 21. Rfd1 Bc5 22. e3 Ra8 23. Qe2 Qf6 24. f4 Bxc4 1/2-1/2