This is the newest version of MAWCHESS [2.0].Included in this version:- Computer AI- Options Menu (change AI settings and more, press OPTN or SETUP to access)- Automatic Board Flipping for 2-player mode- Faster, optimized codeInstructions: - To select a piece, highlight it with the arrow keys and press EXE - To change your selection, move to another piece and press EXE there - To move a piece, press EXE after selecting it - To castle, move the king to its destination square.The AI isn't too advanced, but it's about the best that the calculator's small processor and limited memory can handle. It can search between 2-3 moves ahead, and it is rumored that MawstaMountein Studios will be adding a fourth move search some time in the future.Please comment and rate.