Chess may not seem suited to radio, but in the Sixties the BBC broadcast special programmes featuring the world’s greatest ever players

Lothar Schmid was a great referee and a remarkable man: a former lawyer and grandmaster himself, he had the respect of even the respect of even the most temperamental of players

London's forthcoming Candidates tournament features the world's best, including the highest-ranked player in history, Magnus Carlsen

In 1962 Bobby Fisher claimed "the Russians have fixed world chess". He was certainly paranoid but was proved to be partially right