You need two people to play. There is no computer AI. There are two ways to move: either click on a piece and then where you want to move it or click and drag a piece to where you want to put it. If you have a piece selected it will have a green circle around it, if you can make another jump (for double or triple jumps) the circle will be cyan (light blue). When the game is over a message will appear declaring the winner. You can click anywhere on the applet to remove the message and then click again to make it reappear.