[Event "IBM"]
[Site "Amsterdam"]
[Date "1961.??.??"]
[Round "2"]
[White "Kuijpers, Frans"]
[Black "Johner, Hans"]
[Result "0-1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. O-O Nc6 7. d5 Na5 8. Nfd2 b6 9. e4 Bd7 10. Nc3 Nb7 11. f4 Nc5 12. Qe2 Ng4 13. Nf3 h5 14. h3 Nh6 15. Kh2 e6 16. dxe6 Nxe6 17. Be3 Re8 18. Rad1 Bc6 19. Ng5 Nc5 20. f5 Qe7 21. Qf3 Nxf5 22. Bc1 Be5 23. Rd5 Nxg3 24. Rf2 Ne2+ 25. Rxe5 Qxe5+ 26. Kh1 f6 27. Nxe2 Rf8 28. Bf4 Qe8 29. Qg3 fxg5 30. Qxg5 Nxe4 31. Bxe4 Qxe4+ 32. Kh2 Rae8 33. Ng3 Qb1 34. Rd2 Re1 0-1