[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1970.01.20"]
[Round "7"]
[White "Kavalek, Lubomir"]
[Black "Donner, Jan Hein"]
[Result "1/2-1/2"]
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 cxd4 8. Nxd4 Bc5 9. Qd2 Nxd4 10. Bxd4 Bxd4 11. Qxd4 Qb6 12. Nb5 Qxd4 13. Nxd4 Nc5 14. Bd3 Bd7 15. Kd2 O-O 16. Rae1 Rac8 17. Re3 f5 18. exf6 gxf6 19. b4 Nxd3 20. cxd3 Kf7 21. Rhe1 Rg8 22. g3 Rce8 23. Rc1 Rc8 24. Ree1 h5 25. Nf3 Ke7 26. Rxc8 Bxc8 27. Nd4 Kd6 28. Nb5+ Ke7 29. Nxa7 Bd7 30. b5 Kd6 31. a4 b6 32. a5 bxa5 33. Ra1 Kc7 34. Rxa5 Ra8 35. Ra6 Kb7 36. Rd6 Kc7 1/2-1/2