EG1: H

Goal

The white face on the bottom is done and the bottom layer has two adjacent corners swapped (EG1). The top is the H shape. One algorithm solves the whole cube.

How to recognize it

First look at the bottom row of the four sides. EG1 has exactly one side with a matching pair. No side means EG2; all four mean CLL.

Then look at the top row of the four sides, as in CLL: H. Each case has the same top layer as the CLL case with the same number. Words used here:

• Front sticker (or left, right, back): the non-yellow top sticker on that side. On a side with two non-yellow stickers, call them front and rear (or left and right).
• Matching pair: a side's two top stickers have the same color.
• Opposite colors: red and orange, green and blue. Two different colors that are not opposite are neighboring colors.

Put the yellow pairs on the front and back, then look at the left and right stickers.

How to hold the cube

White on the bottom. Hold the top like the CLL lesson with the same shape, shown under the controls. Then turn D so the bottom matching pair is on the back.

The algorithm only works with that pair on the back. The player adds a U at the start or end when needed.

The main idea

The two yellow top EG1 cases are in Permute both layers (PBL): Both adjacent, and Top diagonal, bottom adjacent.

Next lesson

Go to EG1: Headlights.