3x3 · CMLL
3x3 CMLL L Pure algorithm
3x3 CMLL L Pure algorithm: 15 turns, opening with R U R'. Case recognition, the complete sequence, and practical execution notes.
Solve the four upper corners in Roux after building both side blocks; the remaining edges are solved later.
L Pure belongs to the L group in CMLL.
Recognize this starting position
In the inverse-derived training position, the upper-face color points upward at these corner positions: UFR, UBL. Upper edges with that color facing up: UF, UL, UB, UR. Reading each side’s upper corner stickers left to right when facing that side gives F: R B; R: L F; B: U F; L: R U. The letters identify colors by their reference faces.
Execute the algorithm
R U R' U R U' R' U R U' R' U R U2 R'
The opening is R U R'; the final segment is R U2 R'. This version contains 15 face, wide, or slice turns and no whole-puzzle rotations.