Step 24/25 · CFOP

PLL: G perms

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The four G perms: three corners and three edges cycle together, the easiest to mix up.

Goal

Solve the top layer with one algorithm when you see one of the four G perms.

How to recognize it

Exactly one side has headlights and no side has a full row. Hold the headlights on the left, then check whether their edge is a neighboring or opposite color, and where the pair is.

How to hold the cube

White face on the bottom, top already all yellow. Each case's grip is shown under the controls. The player adds a U at the start or end when needed.

The main idea

Ga and Gc have a neighboring-color edge; Gb and Gd have an opposite-color edge. Ga and Gb undo each other, and so do Gc and Gd.

Next lesson

Go to Recognizing PLL from two sides.

Step 1 / 13

R2: Right face: turn 180°

Headlights with a neighboring-color edge on the left. The front has a pair at the front right corner.

Hold the headlights on the left.

Step 1 of 13: R2. Right face: turn 180°