The objective in Chinese Chess (Xiang Qi) is to checkmate the opponent's General. It's also a win to stalemate your opponent so that he can't move - this usually only happens when a player is reduced to a lone king. A player may not force a repetition of moves. The horizontal space across the center of the board is the river separating the territories of the two sides. Elephants are not allowed to cross the river, whereas Soldiers promote once they cross it. The 3x3 box marked with an "X" is the General's imperial palace or fortress. Each General and his Mandarins may not leave their fortress. There are seven pieces in Chinese Chess:

The reason why I made this implementation is because the Chinese Chess on the Zillions CD plays badly. I also added a more Western style piece set. The reason why it plays badly is because the pieces are incorrectly evaluated. For instance, the Cannon is regarded as equally valuable as a Chariot. This is clearly wrong. All I did in this implementation was to apply tweaking to alter the relative values of the pieces.