Tic-tac-toe with unbeatable computer opponent
Updated: April 13 2015 by Robert Johansson
To start the game (computer is playing X and human is playing O):
(ttt (make-game "computer" "human"))
To make the human player start the game (play as X):
(ttt (make-game "human" "computer"))
Print "i" in the game for instructions.