Corners Only
PLL Ab Perm
All four edges solved, three corners cycling the other way from Aa.
Algorithm
x R2' D2 R U R' D2 R U' R
Start hereMirror of Aa, same tilt.
How to recognise it
- →Edges all solved, one face with headlights.
- →Aa and Ab differ only in cycle direction — read the headlight face first.