AlphaChess is an excellent chess game with which you will be able to test your mental and strategic capabilities while having a good time playing with the computer or with your friends, in the easiest and totally entertaining way.
AlphaChess is considered one of the best games of its type, since it has a superior answering capability and artificial intelligence above the rest of the applications of this class, that way, the computer will make totally independent moves according to the decisions you make regarding your moves.
Also, AlphaChess has a very attractive graphical interface with colourful pieces and an environment that you will find more than nice, but maybe one of the main characteristics that this game has, is that it is free licenced.