I just finished the first more-or-less working version of a Connect-4 game which can take a board size and number of tokens for a win, as well as play with either two human players, or a human and a solver AI. The solver is pretty lousy, but it works after a fashion.
I need to add a bit to the README about how to use it, which I will do when I next get a chance. Also,the current front end is entirely console based.
I do want to improve the AI, and later I want to extend it with a GUI, so any advice or comments would be appreciated.
