Struggling with this one. What do you think? Which of the five figures does not share the same basic, common feature that the others share? http://img12.imageshack.us/img12/7317/spatial1.png [Broken] The figures aren't perfectly recreated in the image - assume that the shape in the middle is a perfect square and is centered inside another perfect square. EDIT: image fixed. Terribly sorry for the goof. Also, if this stimulates interest, I've got another I can post.