This is a very unique puzzle and requires a lot of planning and a lot of knowledge of color combinations. If you don't know the combinations though, you will figure them out. A ball will be shot from a white box; it will always travel in a straight path unless instructed by another box to switch routes. However, the only way the box can switch the balls route is if the ball and the box are of the same color. There are color changing pieces that will be given to you and you must place them on the grid in such a way that allows the ball to make it to the ending location. Some boxes must be combined in order to achieve the correct color.