3x3 · PLL
3x3 PLL Jb algorithm
3x3 PLL Jb algorithm: 13 turns, opening with R U R'. Case recognition, the complete sequence, and practical execution notes.
Permute the last-layer pieces while preserving their orientation and the first two layers.
Jb 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: L F F; R: R L L; B: F R R; L: B B B. The letters identify colors by their reference faces. Piece locations (position ← home piece): UFL ← UBL, UBL ← UBR, UBR ← UFL, UL ← UB, UB ← UR, UR ← UL.
Execute the algorithm
R U R' F' R U R' U' R' F R2 U' R'
The opening is R U R'; the final segment is R2 U' R'. This version contains 13 face, wide, or slice turns and no whole-puzzle rotations.