[Event "IBM"]
[Site "Amsterdam"]
[Date "1965.??.??"]
[Round "8"]
[White "Zuidema, Coen"]
[Black "Donner, Jan Hein"]
[Result "1/2-1/2"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Nf3 Bf5 7. Be2 e6 8. Bf4 Bg7 9. O-O O-O 10. c4 Nd7 11. Qd2 Bg6 12. Rad1 Re8 13. Rfe1 c5 14. dxc5 Nxc5 15. Qb4 Qb6 16. Qa3 Bf8 17. Be3 a5 18. Qc3 e5 1/2-1/2