Lesson 3
Corner Solving
Corners work just like edges, but the buffer is UBL and we use a Y-perm to swap UBL with UFR. Setup moves bring the target corner to UFR without disturbing UBL.
The Corner Cycle
- Look at the UBL corner. Read its letter.
- Find the target corner and set it up to UFR.
- Execute the Y-perm to swap UBL and UFR.
- Undo the setup.
- Repeat until corners are solved.
Corner Swap Algorithm (Y-Perm)
F R U' R' U' R U R' F' R U R' U' R' F R F'
Swaps UBL and UFR corners. It also swaps two edges, but edges are already solved at this point — which is why we do corners last.
Corner Setup Examples
UFR (C)
(none)
Target position
UBR (B)
R2
Bring UBR to UFR
UFL (D)
F2
Bring UFL to UFR