The Four Color Map Theory states that any map can be colored using only four colors or less. Well, I just debunked it with this map. It can also work without the outer C ring. In my map, E is touching A, B, C, and D. Therefore forcing the use of a 5th color. However, without the C ring, you could have still used only four, if the ABAB, was CBCB, so that you'd only have to use A.
