Breaking the Code Breaking the Code Breaking the Code is a 1986 play by Hugh Whitemore about British mathematician Alan Turing, who was a key player in the breaking of the German Enigma code at Bletchley Park during World War II and a pioneer of computer science. The play thematically links Turing's cryptographic activities with his attempts to grapple with his homosexuality. It was adapted as a 1996 television film directed by Herbert Wise, with Derek Jacobi reprising his stage role as Turing. Following an eight-month run at the Theatre Royal, Haymarket in London's West End beginning on 21 October 1986, the play
Enigma machine Enigma variant was a four-wheel unsteckered machine with multiple notches on the rotors. This model was equipped with a counter which incremented upon each key press, and so is also known as the "counter machine" or the "Zählwerk" Enigma. Enigma machine G was modified to the "Enigma I" by June 1930. Enigma I is also known as the "Wehrmacht", or "Services" Enigma, and was used extensively by German military services and other government organisations (such as the railways) before and during World War II. The major difference between "Enigma I" (German Army version from 1930), and commercial Enigma models was