2x2 CLL H 4 algorithm

Solve the final four corners of the 2x2 after completing the first layer.

CLL H 4 belongs to the H group in CLL.

Recognize this starting position

In the inverse-derived training position, the upper-face color points upward at these corner positions: none. Reading each side’s upper corner stickers left to right when facing that side gives F: B F; R: U U; B: F B; L: U U. The letters identify colors by their reference faces.

Execute the algorithm

y R2 U2 R' U2 R2

The opening is y R2 U2; the final segment is R' U2 R2. This version contains 5 face, wide, or slice turns and 1 whole-puzzle rotation.