2x2 · CLL
2x2 CLL AS 4 algorithm
2x2 CLL AS 4 algorithm: 7 turns, opening with y2 R' F. Case recognition, the complete sequence, and practical execution notes.
Solve the final four corners of the 2x2 after completing the first layer.
CLL AS 4 belongs to the AS group in CLL.
Recognize this starting position
In the inverse-derived training position, the upper-face color points upward at these corner positions: UBL. Reading each side’s upper corner stickers left to right when facing that side gives F: U L; R: U F; B: U R; L: B R. The letters identify colors by their reference faces.
Execute the algorithm
y2 R' F R F' R U R'
The opening is y2 R' F; the final segment is R U R'. This version contains 7 face, wide, or slice turns and 1 whole-puzzle rotation.