Dr John Nunn is one of the best-respected figures in world chess. He was among the world's leading grandmasters for nearly twenty years, winning four gold medals in chess Olympiads and finishing sixth overall in the World Cup in 1989. He is a much-acclaimed writer, whose works have won 'Book of the Year' awards in several countries. In both 2004 and 2007 Nunn was crowned World Chess Solving Champion, ahead of many former champions.