Dick Smith challenges you Win $500 by designing a noughts-and-crosses machine that can beat 14-year old me!

摘要

Dick Smith has described in his new autobiography how one of the turning points in his life,at age 14,was successfully building a'noughts-and-crosses machine'(also known as tic-tac-toe)that could play the game as well as anyone.Keep in mind that this was in 1958,when nobody had computers;it was a purely electromechanical device.