Chess players and code breakers
Conel Hugh O'Donel Alexander was British Champion in 1938 and 1956. During the Second World War, he worked at Bletchley Park with fellow chess champions Harry Golombek and Sir Philip Stuart Milner-Barry, deciphering German Enigma codes and later for the Foreign Office. He represented England on six Olympiad teams. Alexander was also an author of several chess books.
In this pre-war game against his university friend Milner-Barry, Alexander (playing Black) has his queen under attack. Consider his options to predict which move he made.
Bletchley Park was the top-secret home of the World War Two Codebreakers. Their task was to break the enigma code, the system the Nazi's used to encrypt messages. As they sought out the best brains to pour over the codes, Bletchley Park went for top chess players.
👍 Video - How chessplayers helped crack Enigma (16:35)