3x3 · ZBLL
3x3 ZBLL T 4 algorithm
3x3 ZBLL T 4 algorithm: 14 turns, opening with y2 F R2. 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 4 belongs to the T1 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: F R R; R: B F U; B: F B L; L: U L L. The letters identify colors by their reference faces.
Execute the algorithm
y2 F R2 D R' U' R D' R2 U' R U2 R' U' F'
The opening is y2 F R2; the final segment is R' U' F'. This version contains 14 face, wide, or slice turns and 1 whole-puzzle rotation.