3x3 · ZBLL
3x3 ZBLL H 37 algorithm
3x3 ZBLL H 37 algorithm: 15 turns, opening with y' R' U2. Case recognition, the complete sequence, and practical execution notes.
Solve the entire last layer in one sequence when its edges are already oriented.
ZBLL H 37 belongs to the H4 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: B B F; R: U R U; B: F F B; L: U L U. The letters identify colors by their reference faces.
Execute the algorithm
y' R' U2 R U R' U R U R U R' U R U2 R'
The opening is y' R' U2; the final segment is R U2 R'. This version contains 15 face, wide, or slice turns and 1 whole-puzzle rotation.