Across The Board is a series of interviews conducted over a game of chess. In this programme Dominic Lawson talks to the best-selling military historian Antony Beevor. What are the parallels between chess and warfare?

Across The Board is a series of interviews conducted over a game of chess. In this programme Dominic Lawson interviews the game's leading philanthropist. Mega-rich financier Rex Sinquefield is ploughing millions of dollars into the game. But why?