Alan Turing was the extraordinary Cambridge mathematician who masterminded the cracking of the German Enigma ciphers and transformed the Second World War. In 1954, aged 41, Alan Turing committed suicide and one of Britain's greatest scientific minds was lost.

Alan Turing was the extraordinary Cambridge mathematician who masterminded the cracking of the German Enigma ciphers and transformed the Second World War. In 1954, aged 41, Alan Turing committed suicide and one of Britain's greatest scientific minds was lost.