It’s time to solve that Rubik’s puzzle of yours, but how do you do it? Erno Rubik designed these three-dimensional mechanical puzzles to be precariously difficult, unless you know a little about mathematical algorithms, then it’s just a matter of time and determination.
This two-part video tutorial will teach you how to solve the 4×4 Rubik’s Cube Revenge puzzle. The trick to solving this 4×4 Rubiks Cube Revenge is the algorithms. Once you know the algorithms, it’s a cinch every time! Make sure you can solve the Classic 3×3 Cube before you attempt this.
Algorithms:
2R 2U 2D 2R
R 2U 2R 2F R
R Fi U Ri F
2R 2B 2U L 2U Ri 2U R 2U 2F R 2F Li 2B 2R
2Uu 2Ll 2U 2l 2U 2Ll 2Uu
Source: http://puzzles.wonderhowto.com