The 4 by 4, also known as the Rubik's Revenge, was invented in 1981 by Péter Sebestény. Unlike the 3 by 3 Rubiks cube, it has no fixed centers and therefore makes it harder to solve. This puzzle also has parity, so one must memorize more algorithims to solve the cube. A link to the solution of this puzzle is on the bottom left.Good luck!!!
4 by 4 Solution