3x3 · ZBLL
3x3 ZBLL U 37 algorithm
3x3 ZBLL U 37 algorithm: 17 turns, opening with y2 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 U 37 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 B R; R: B L F; B: U R U; L: F F B. The letters identify colors by their reference faces.
Execute the algorithm
y2 R U R' U R U R' U2 R U' R2 D' R U' R' D R
The opening is y2 R U; the final segment is R' D R. This version contains 17 face, wide, or slice turns and 1 whole-puzzle rotation.