3x3 · ZBLL
3x3 ZBLL Pi 72 algorithm
3x3 ZBLL Pi 72 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 72 belongs to the Pi 6 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: L F U; R: F R B; B: U B L; L: U L U. The letters identify colors by their reference faces.
Execute the algorithm
F R U R' U' R U R' U' F' R U R' U' M' U R U' Rw'
The opening is F R U; the final segment is R U' Rw'. This version contains 19 face, wide, or slice turns and no whole-puzzle rotations.