3x3 · ZBLL
3x3 ZBLL T 28 algorithm
3x3 ZBLL T 28 algorithm: 15 turns, opening with y' 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 T 28 belongs to the T3 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: R B R; R: B R U; B: L L L; L: U F F. The letters identify colors by their reference faces.
Execute the algorithm
y' R' U' R' D' R U R' D R U2 R U R' U R
The opening is y' R' U'; the final segment is R' U R. This version contains 15 face, wide, or slice turns and 1 whole-puzzle rotation.