Depth of the minimax can be changed by editing the depthvar variable (default is 2)
(setting no-tracing to NIL causes a trace to be printed in the listener) (the trace shows possible successors in the format of a 1D array with their corresponding values and then the temporary max and min values as it progresses throughout the tree)
type (game-play) to play follow the prompts to play 1 2 3 4 5 6 7 8 9 enter the number of the area you want to place a symbol invalid move error checking is enabled and you will not lose a turn if you try to occupy an occupied space error checking is not enabled for symbols other than x and y.