[Event "IBM"]
[Site "Amsterdam"]
[Date "1961.??.??"]
[Round "6"]
[White "Wade, Robert Graham"]
[Black "Crabbendam, Henrico"]
[Result "1/2-1/2"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. g3 dxc4 5. Bg2 Nf6 6. Nf3 Nbd7 7. O-O Nd5 8. e4 Nxc3 9. bxc3 b5 10. d5 Bb7 11. Nd4 e5 12. dxc6 exd4 13. cxb7 Rb8 14. e5 Qb6 15. cxd4 Rxb7 16. Bxb7 Qxb7 17. d5 Bb4 18. Qg4 Nxe5 19. Qxg7 Nf3+ 20. Kh1 Qxd5 21. Qxh8+ Kd7 22. Bf4 Nd2+ 23. Kg1 Nf3+ 24. Kh1 Nd2+ 1/2-1/2