3x3 · ZBLL
3x3 ZBLL Pi 3 algorithm
3x3 ZBLL Pi 3 algorithm: 19 turns, opening with F R U'. Case recognition, the complete sequence, and practical execution notes.
Solve the entire last layer in one sequence when its edges are already oriented.
ZBLL Pi 3 belongs to the Pi 1 group in ZBLL.
Recognize this starting position
In the inverse-derived training position, the upper-face color points upward at these corner positions: none. 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 U; R: B L B; B: U B F; L: U F U. The letters identify colors by their reference faces.
Execute the algorithm
F R U' R' U R U R2 F' R U2 R U' R' U R U2 R' U'
The opening is F R U'; the final segment is U2 R' U'. This version contains 19 face, wide, or slice turns and no whole-puzzle rotations.