Step 4/8 · CLL

CLL: Pi

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Six cases with no yellow corners and one yellow pair on a side.

Goal

The white layer on the bottom is done. The top is the Pi shape. One algorithm solves the whole top layer.

How to recognize it

Only compare top-layer stickers with each other, never with the bottom layer. 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 pair on the left. Look at the two right stickers: a matching pair, opposite or neighboring colors. Then compare the front and back stickers.

How to hold the cube

White on the bottom. Every case in this lesson uses the same grip, shown under the controls. The player adds a U at the start or end when needed.

The main idea

Pi 3 has the familiar Pi algorithm as an alternative. The other cases need new algorithms.

Next lesson

Go to CLL: H and yellow top.

Step 1 / 11

U': Top face: turn 90°, front face goes right

The right side has a matching pair. The front and back stickers match.

Hold the yellow pair on the left side.

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