The Turk, also known as the Mechanical Turk or Automaton Chess Player was a trick chess-playing machine. First put on show in 1770, the machine was in use until it was destroyed in a fire in 1854. It was later found to be a hoax. It was built in 1770 by Wolfgang von Kempelen to impress the Empress Maria Theresa of Austria. The machine could play chess against a human. It could also perform the knight's tour, a puzzle where a player moves a knight to every square of a chessboard exactly once.