2x2 · EG 2
2x2 EG2 S 1 algorithm
2x2 EG2 S 1 algorithm: 15 turns, opening with R2 F2 R. Case recognition, the complete sequence, and practical execution notes.
Solve the remaining 2x2 corners when the completed first face has a diagonal swap in its layer.
EG2 S 1 belongs to the S group in EG 2.
Recognize this starting position
In the inverse-derived training position, the upper-face color points upward at these corner positions: UFL. Reading each side’s upper corner stickers left to right when facing that side gives F: R U; R: R U; B: B U; L: L F. The letters identify colors by their reference faces.
Execute the algorithm
R2 F2 R U R U' R' F R' F' R2 U R' U' R
The opening is R2 F2 R; the final segment is R' U' R. This version contains 15 face, wide, or slice turns and no whole-puzzle rotations.