In this position the player with the dark balls makes a move and wins (ball on the left
stick - and there are 4 dark balls in a diagonal).
In order to put a ball on a stick click at the end of the stick - the ball is placed, and
after that click a second time to the same position - the ball drops down.
The computer can play in 4 several levels: greenhorn, advanced, professional and champion.
In order to change the level, simply press one of the keys "g", "a", "p" or "c".
After you have finished a game you can analyze it once again: first press "1" and "3" to change into the 2-player-mode. Now you can take back a move by pressing "t" and replay by pressing "r". You can change the graphics mode by pressing "m". Use the arrow keys to go around the game board, Shift+ arrow keys to shift the picture and use "+" and "-" to zoom in and zoom out the picture.