Harold van der Heijden

Fellow students, whether composers or solvers, have appreciated it for years, but it is far less known to the wider chess community: since 1991, there has been a giant database of chess. It is the result of the tireless work of Harold van der Heijden, a Dutch collector of endgames and studies, editor, chess organizer, and chess composer. Harold has just turned 65, and the well-known chess study composer has written an article celebrating the launch of the latest 100,000 game edition of the database.