[Event "IBM"]
[Site "Amsterdam"]
[Date "1970.07.27"]
[Round "11"]
[White "Jongsma, Alexander"]
[Black "Scholl, Eddie C"]
[Result "1/2-1/2"]

1. d4 g6 2. Nf3 Bg7 3. c4 c5 4. d5 d6 5. Nc3 Nf6 6. e4 O-O 7. h3 e5 8. dxe6 Bxe6 9. Bd3 Nc6 10. O-O a6 11. Bg5 Re8 12. Qd2 Qa5 13. Rfe1 Nd7 14. Rac1 Nde5 15. Nxe5 Nxe5 16. b3 Bxh3 17. f4 Nxd3 18. Qxd3 Be6 19. f5 Bxf5 20. Nd5 Bd4+ 21. Kh1 Be6 22. Nf6+ Kg7 23. Nxe8+ Rxe8 24. Bd2 Qxa2 25. Rc2 Qa3 26. Bc3 Kg8 27. Bxd4 cxd4 1/2-1/2