Installation: 1. Rename MobileChess.zip to MobileChess.jar if necessary; 2. Copy MobileChess.jar into your mobile device; 3. Install MobileChess.jar (MobileChess.jad is also necessary in some devices). 4. For some touchscreen mobiles which have no keypad, use MobileChess-TouchScreen.jar & MobileChess-TouchScreen.jad instead. http://sourceforge.net/projects/mobilechess/files/