Big update to stop it making silly moves.

Version 1.2

The original release was particularly weak.

I fixed a bug that meant that the AI didn't realize that the king could take it's pieces. Fixing this alone made for a much tougher game.

I added a small open book. I'll try and find a way to fit a larger one into the Pico 8s tight size limits.

It now searches ahead when there is a check allowing it to checkmate much more easily.

It has more refined logic to evaluate the board.

Still no match for the lovely Pico Checkmate but it's coming along nicely.