It supports two modes: human-machine and human-human via Bluetooth.
The first mode has three level: easy, medium and hard.
Two users can play against each other via Bluetooth in the second mode.
It also supports "Undo" function. There is a ranking system where you can check your global rank when playing with the computer.
Note: 1) If you win the computer you get 100 points; 50 for a draw game and 1 for lost game.
2) To enable the rank system, you need to sign it in.
Enjoy it.
See the chess rule:
http://en.wikipedia.org/wiki/Xiangqi
