3x3 · OLL
3x3 OLL 55 algorithm
3x3 OLL 55 algorithm: 12 turns, opening with y R' F. Case recognition, the complete sequence, and practical execution notes.
Orient the last layer after completing F2L; permutation is handled in the next stage.
OLL 55 belongs to the Line Shapes group in OLL.
Recognize this starting position
In the inverse-derived training position, the upper-face color points upward at these corner positions: none. Upper edges with that color facing up: UF, UB.
Execute the algorithm
y R' F U R U' R2 F' R2 U R' U' R
The opening is y R' F; the final segment is R' U' R. This version contains 12 face, wide, or slice turns and 1 whole-puzzle rotation.