4x4 cube

Four layers each way. Solve the centers, pair the edges, then solve it like a 3x3.

2 methods14 lessons68 cases

Notation for the 4x4 cube

Reduction
The most common beginner method: turn the 4x4 into a big 3x3.
10 lessons47 cases
Start: Solve the 6 centers
1. Lesson 1
  Solve the 6 centers
  Gather the 4 matching center pieces on each face with the elevator idea, in your cube's color order.
  9 cases
2. Lesson 2
  Pair the 12 edges
  Join matching edge pieces into pairs and store them on top and bottom. The last four pairs have their own algorithm.
  4 cases
Solve it like a 3x37 lessons
1. Lesson 10
  Parity
  Happens when you solve a 4x4 like a 3x3 and end up with one flipped edge pair or two swapped edge pairs. A 3x3 never gets these cases, so they need their own algorithms.
  2 cases