Semi Perfect and Perfect Magic Cubes
Magic cubes, just like magic squares, have numerous different forms they
come in. Two of the most well known are the (semi-) perfect magic cube. A
perfect magic cube is also known as an Myers cube and a semiperfect magic
cube is also known as an Andrews cube. The only difference between these
two, is that a semiperfect magic cube does not have its cross section
diagonals sum to the magic constant of that particular magic cube.
However, both variations of the magic cube have it's rows, columns,
diagonals, pillars, space diagonals and orthogonal slice diagonals equate
to the magic constant.