3x3 · PLL
3x3 PLL Ga algorithm
3x3 PLL Ga algorithm: 15 turns, opening with R2 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.
Ga 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 R R; R: B L F; B: R F B; L: L B L. The letters identify colors by their reference faces. Piece locations (position ← home piece): UFR ← UBR, UBR ← UFR, UF ← UR, UL ← UB, UB ← UF, UR ← UL.
Execute the algorithm
R2 U R' U R' U' R U' R2 D U' R' U R D'
The opening is R2 U R'; the final segment is U R D'. This version contains 15 face, wide, or slice turns and no whole-puzzle rotations.