PLL parity: two edges swapped
Swap the top-front and top-back pairs. Then the cube is solved!
- You start with (input)OLL parity: one flipped edge
- Result you will get after finishing this stepPLL parity: two edges swapped
How to do it
- At step 7 of the 3x3 guide: the yellow corners are home but the top edges match no picture of the 3x3 guide (say only two pairs are swapped): that is PLL parity.
- Yellow on top, do the formula once: the front and back pairs swap, the corners stay. Then do step 7 of the 3x3 guide again.
This step: look only for
- Piece
- Edge pairs
- Colours
- The side colour (ignore yellow) against the centre below it
- Where
- Layer 3 (the top)
- How many
- All 4 pairs at once
Leave every other piece alone for now: the pictures show them in grey. Found one? Compare it with the cases below.
Which case do you have?
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.
2R2U22R2Uw22R2Uw2U2
- Top layer off after the formula? Turn until it lines up.