MadChess 2.0
I chronicled the development of MadChess 2.0 in a series of blog posts. MadChess 2.0 uses mailbox board representation.
MadChess 3.0
I am chronicling the development of MadChess 3.0 Beta in a series of blog posts. MadChess 3.0 Beta uses bitboards. I have not yet released MadChess 3.0.