| Rubik's Cube - Professor Cube 5x5. The Rubik's 5x5 Cube is back and tougher than ever! Professor CubeŽ is the most complex of all Rubik's Cube levels. Its siblings and predecessors bow down to the challenge this one introduces to the user with five rows of cubes on each of the six faces to grapple with. Newly tooled and released, this is a long awaited puzzle for Rubik's fans looking for a piece of nostalgia and those who have just learned how fun Rubik's cube products can be. Availability: This Rubik's Cube takes approximately 1... - Rubik's Cube - Professor Cube 5x5. |