1 You (the Player) plays Red.
2 The oponent (Computer) always plays Black.
3 Player goes first.
4 Click to hightlight the piece you want to move.
5 Click on the square you want to move to.
6 The Computer will move next.
There is no 'forced' taking:
You may move any piece even if one of your pieces is in a position to take an oponents piece.
The message box will give further information.