Impossible Rotating Crate

Mouse over the image of this impossible crate design to move it through a short range of motion. You will see the crate rotate normally, complete with crawling shadows. You will also see 2 of the supports existing where they cannot be. The farthest support back is one of them. Can you find the other?

Categories and tags of the game : 3D, Educational, Informative, Optical Illusion, Single Player, Toy