The corners are in place. Fix the top edges with one of four algorithms to finish.
Goal
A solved cube.
How to recognize it
The corners are in place. Count the sides whose whole top row is done:
- One side done: the other three edges cycle around (Ua or Ub).
- No side done: two pairs of edges swap (H or Z).
How to hold the cube
White face on the bottom. If a side is done, hold it at the back. Then look at the front edge: the right center's color means Ua, the left center's means Ub.
The main idea
M2 turns the middle slice half a turn (see the notation page). The H and Z algorithms alternate M2 and U, so they are easy to remember by rhythm.
Final check
The whole cube is solved. Turn U once more if the top is still offset.
Next lesson
You have solved the cube with 4-look CFOP. To go faster, learn full OLL and full PLL. The first full PLL lesson is .