We discovered Catie graphs, which will be discussed later, when attempting to
solve the Instant Insanity puzzle. The Instant Insanity puzzle has four cubes
where each face of each cube has one of the four colors, red, green, white, or
blue. The objective is to stack the four cubes on top of one another so that
when looking at a column where each cube has one face showing the column
should have a dierent color for every face.