Rubik's Brain Racker is a puzzle that allows for numerous solutions, some given on the back of the packaging. The puzzle is a number of triangles on tracks on a plastic ball. They all have a number and a color in a circle. Another example is to position the triangles into a mosaic in such a way that no elements of the same color are touching. Some variations on these goals require the numbers to be in the correct order, or to not repeat the same number in each of the 12overlapping, roughly circularpanels of five pieces