This one has changed the basic premise.The aim here is to take the ball bearing that you have and place it in the side hole of the box and then manipulate all the pieces until it comes back out the other side. There are lots of holes in the top of the box to help you peek inside and try to work out what can move where and where the paths are. This would be a fun but not terribly difficult challenge if there were only one ball and the movable pathway through from one side to the other. But Frederic is never going to be kind to you. He has put two marbles in the box (they don’t come out), and they seriously impede what you want to d Not only do you need to manipulate the ball bearing through a moving maze but you need to use gravity to get the obstructions out