2x2 · EG 2
2x2 EG2 Pi 1 algorithm
2x2 EG2 Pi 1 algorithm: 10 turns, opening with F U' 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 Pi 1 belongs to the Pi group in EG 2.
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: R U; R: B F; B: U R; L: U U. The letters identify colors by their reference faces.
Execute the algorithm
F U' R U2 R U' R' U R' F'
The opening is F U' R; the final segment is U R' F'. This version contains 10 face, wide, or slice turns and no whole-puzzle rotations.