The four side centres
Finish the four side centres, each the colour of its middle piece.
- You start with (input)The yellow centre
- Result you will get after finishing this stepThe four side centres
Which case do you have?
z′RwU2Rw′z
Keep the front
Before you compare and all through the formula: keep the front (the face marked FACING YOU in the pictures) turned towards you. A picture marked BACK, AWAY FROM YOU looks from behind: do not turn the cube, just tilt it to see the back.
How to do it
- Keep yellow on top, white at the bottom. Each side’s middle piece already tells you its colour, so there is no colour order to remember.
- Work between the front and the right face. The picture shows where the strip waits: the formula starts with z' (the whole cube tips left, the right face comes on top) and ends with z (back as it was).
- The formula only swaps pieces between the front and the right: yellow, white and the other finished faces stay. One face done? Turn the whole cube (y) to the next.
This step: look only for
- Piece
- Centre pieces
- Colours
- The colour of the front’s middle piece
- Where
- The 4 sides
- How many
- One face, one strip at a time
Leave every other piece alone for now: the pictures show them in grey. Found one? Compare it with the cases below.
- All six centres done? Go to step 4, the edges.