When a Man promotes to a King it becomes the puppet of his opponent. In other words, it switches sides. Therefore a player will try to avoid promoting his own Men and encourage the promotion of his opponent's.
 
Other than this, the game follows the rules of Spanish Checkers. This is played very much like Anglo-American Checkers, the main difference is that the King has a more substantial move along any number of vacant squares, including ones beyond a captured piece. Captures are mandatory. If a player has a choice of captures he must take the greater number of pieces.