[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1971.01.12"]
[Round "1"]
[White "Van den Berg, Carel"]
[Black "Donner, Jan Hein"]
[Result "1/2-1/2"]
1. e4 g6 2. d4 Bg7 3. c3 d5 4. Nd2 dxe4 5. Nxe4 Nd7 6. Bc4 Ndf6 7. Ng5 e6 8. N1f3 Ne7 9. Qe2 O-O 10. O-O Ned5 11. Bb3 b6 12. c4 Ne7 13. Rd1 Bb7 14. Ne5 Qc8 15. Ngf3 h6 16. h3 Rd8 17. Bf4 Nd7 18. Rd2 Nxe5 19. Nxe5 c5 20. Rad1 cxd4 21. Rxd4 Rxd4 22. Rxd4 Nc6 23. Rd6 Nxe5 24. Bxe5 Qc5 25. Bg3 e5 26. Rd2 Rc8 27. Kh2 a5 28. Qd3 Bf8 29. f3 1/2-1/2