3x3 · OLL
3x3 OLL 12 algorithm
3x3 OLL 12 algorithm: 10 turns, opening with y' M' R'. Case recognition, the complete sequence, and practical execution notes.
Orient the last layer after completing F2L; permutation is handled in the next stage.
OLL 12 belongs to the Lightning Shapes group in OLL.
Recognize this starting position
In the inverse-derived training position, the upper-face color points upward at these corner positions: UBR. Upper edges with that color facing up: UF, UR.
Execute the algorithm
y' M' R' U' R U' R' U2 R U' M
The opening is y' M' R'; the final segment is R U' M. This version contains 10 face, wide, or slice turns and 1 whole-puzzle rotation.