3x3 · PLL
3x3 PLL Aa algorithm
3x3 PLL Aa algorithm: 9 turns, opening with x R' U. Case recognition, the complete sequence, and practical execution notes.
Permute the last-layer pieces while preserving their orientation and the first two layers.
Aa belongs to the Adj Swap group in PLL.
Recognize this starting position
In the inverse-derived training position, the upper-face color points upward at these corner positions: UFR, UFL, UBL, UBR. Upper edges with that color facing up: UF, UL, UB, UR. Reading each side’s top row left to right when facing that side gives F: F F B; R: L R F; B: R B R; L: B L L. The letters identify colors by their reference faces. Piece locations (position ← home piece): UFR ← UBL, UBL ← UBR, UBR ← UFR.
Execute the algorithm
x R' U R' D2 R U' R' D2 R2 x'
The opening is x R' U; the final segment is D2 R2 x'. This version contains 9 face, wide, or slice turns and 2 whole-puzzle rotations.