
Chess composer. Dutch lawyer and diplomat. International Judge for Chess Compositions (1951).
One of the founders of FIDE at Paris 1924 and first FIDE President (1924-49). FIDE Honorary President of FIDE (1949-59).
He was also president of the Dutch chess federation 1923-28.
A chess bibliophile, he bequeathed his collection of chess books to the University of Amsterdam.
Author of
Bronnen van Schaakstudie, consisting of five volumes.
Updated
10.11.2011