3x3 · OLL
3x3 OLL 42 algorithm
3x3 OLL 42 algorithm: 13 turns, opening with R' U' 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 42 belongs to the Awkward Shapes group in OLL.
Recognize this starting position
In the inverse-derived training position, the upper-face color points upward at these corner positions: UBL, UBR. Upper edges with that color facing up: UF, UL.
Execute the algorithm
R' U' R U' R' U2 R F R U R' U' F'
The opening is R' U' R; the final segment is R' U' F'. This version contains 13 face, wide, or slice turns and no whole-puzzle rotations.