How to solve a Rubik's cube 4х4 - Step 1
Before solving a Rubik's cube 4x4, learn how to solve the classic cube 3x3, because the Assembly of the cube 4x4 consists of the same algorithms as the 3x3, but the addition of a few new formulas
In the beginning of this stage the cube is completely undone.
By the end of this stage you should solve all the centers (4 pieces of one color)
First what you should take into account is that center pieces in 4x4 cube are not fixed like in 3x3 cube and it's important to locate colors of the centers right.
To accomplish this step, You need to rotate the central pieces. Locate necessary pieces opposite one another and carry out the formula.