Levy became a professional chess writer in 1971 . Several of his books were co-written with English Grandmaster Raymond Keene . Levy was married to Keene 's sister Jacqueline for 17 years . He has functioned as literary agent for the escaped Great Train robber , Ronald Biggs and claims to have masterminded his escape from British justice
Great Train robber
Great Train Robbery (1963)
David Levy (chess player)