The SciencesComputer Recreations, October 1989A Tinkertoy computer that plays tic-tac-toeBy A. K. Dewdney on October 1, 1989AdvertisementABOUT THE AUTHOR(S)Recent Articles by A. K. DewdneyDIY Fractals: Exploring the Mandelbrot Set on a Personal ComputerPhotovoresTuring Test