John Nunn

John Denis Martin Nunn (born 25 April 1955 in London) is an English chess grandmaster, a three-time world champion in chess problem solving, a chess writer and publisher, and a mathematician. He is one of England's strongest chess players and was formerly in the world's top ten.

John Nunn

John Denis Martin Nunn (born 25 April 1955 in London) is an English chess grandmaster, a three-time world champion in chess problem solving, a chess writer and publisher, and a mathematician. He is one of England's strongest chess players and was formerly in the world's top ten.