Rubik's Master Cube (4x4)
The Rubik’s Cube 4x4 (also known as the Rubik’s Master Cube) is a 4x4x4 version of the classic Rubik’s Cube. The 4x4 Rubik’s Cube is the bigger and bolder version of its 3x3 and 2x2 little brothers. There are 7.4×1045./ 7.4 quattuordecillion possible permutations for this puzzle. If you had this many teaspoons of sugar, it would fill the space to about 3.5 times the orbit of Pluto!