3x3 · ZBLL
3x3 ZBLL U 45 algorithm
3x3 ZBLL U 45 algorithm: 17 turns, opening with R U R'. Case recognition, the complete sequence, and practical execution notes.
Solve the entire last layer in one sequence when its edges are already oriented.
ZBLL U 45 belongs to the U4 group in ZBLL.
Recognize this starting position
In the inverse-derived training position, the upper-face color points upward at these corner positions: UFR, UFL. 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 L R; R: B R F; B: U B U; L: F F B. The letters identify colors by their reference faces.
Execute the algorithm
R U R' U R' D' R U2 R' D R2 U' R' U2 R U2 R'
The opening is R U R'; the final segment is R U2 R'. This version contains 17 face, wide, or slice turns and no whole-puzzle rotations.