Turing and Champernowne coded Turochamp by hand in 1948, but never executed it on a computer. The instructions were however executed with Turing as the computer

Turing and Champernowne coded Turochamp by hand in 1948, but never executed it on a computer. The instructions were however executed with Turing as the computer: https://www.history.com/news/in-1950-alan-turing-created-a-chess-computer-program-that-prefigured-a-i https://www.history.com/news/in-1950-alan-turing-created-a-c...