2x2 EG2 U 4 algorithm

Solve the remaining 2x2 corners when the completed first face has a diagonal swap in its layer.

EG2 U 4 belongs to the U group in EG 2.

Recognize this starting position

In the inverse-derived training position, the upper-face color points upward at these corner positions: UFR, UFL. Reading each side’s upper corner stickers left to right when facing that side gives F: R L; R: F B; B: U U; L: B F. The letters identify colors by their reference faces.

Execute the algorithm

R' F' U' F U2 L' U2 R U' L

The opening is R' F' U'; the final segment is R U' L. This version contains 10 face, wide, or slice turns and no whole-puzzle rotations.