EG1: Fish

What EG is

EG first builds a white face, without matching the side colors. First face in Ortega shows how. Then one algorithm solves the whole cube.

The bottom layer can be solved (use CLL), have two adjacent corners swapped (EG1), or two diagonal corners swapped (EG2). Each has 42 cases.

This stage is EG1, split into 7 lessons by top shape like CLL. The two yellow top cases are in Permute both layers (PBL).

Goal

The white face on the bottom is done and the bottom layer has two adjacent corners swapped (EG1). The top is the Fish 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: Fish. 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 corner at the front left. Compare the front sticker with the right sticker, the back sticker and the left side's rear sticker. One always matches and one is always opposite.

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

If you know CLL, recognition stays the same; only the algorithms are new. Fish 2 is the shortest here, just 6 moves.

Next lesson

Go to EG1: Reverse fish.