[Event "IBM"]
[Site "Amsterdam"]
[Date "1972.??.??"]
[Round "?"]
[White "Timman, Jan H"]
[Black "Donner, Jan Hein"]
[Result "1/2-1/2"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3 Nc6 7. e5 dxe5 8. fxe5 Nh5 9. Be3 f6 10. exf6 Nxf6 11. Bc4+ Kh8 12. Qd2 e5 13. dxe5 Qxd2+ 14. Bxd2 Ng4 15. O-O 1/2-1/2