3x3 CMLL U Rows algorithm

Solve the four upper corners in Roux after building both side blocks; the remaining edges are solved later.

U Rows belongs to the U group in CMLL.

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, UB. Reading each side’s upper corner stickers left to right when facing that side gives F: F F; R: R L; B: U U; L: R L. The letters identify colors by their reference faces.

Execute the algorithm

U' F R2 D R' U R D' R2 U' F'

The opening is U' F R2; the final segment is R2 U' F'. This version contains 11 face, wide, or slice turns and no whole-puzzle rotations.