Step 7/14 · EG

EG1: Bowtie

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Six EG1 cases with two yellow corners on a diagonal.

Goal

The white face on the bottom is done and the bottom layer has two adjacent corners swapped (EG1). The top is the Bowtie 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: Bowtie. 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 corners at the front right and back left, with the front left yellow facing front. Look at the back and left, then compare the front sticker with the two left 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

After this lesson you know all 40 EG1 cases. The other two are in Permute both layers (PBL).

Next lesson

Go to EG2: Fish.

Step 1 / 11

U: Top face: turn 90°, front face goes left

The back has opposite colors and the left has neighboring colors. The front sticker matches neither left sticker.

Hold the yellow corners at the front right and back left, with the front left yellow facing front. Turn the bottom layer so its matching pair is on the back.

Found by: Sameer Mahmood

Step 1 of 11: U. Top face: turn 90°, front face goes left