OLL · Lightning bolts

OLL 40

R'
F
R
U
R'
U'
F'
U
R
How to recognise it
A big lightning bolt: the left and right edges with the back-left and front-right corners. The front-left corner's yellow faces left.
Algorithms
Built from
R' + OLL 45 + U R
Loose moves
R'
Case
OLL 45
F R U R' U' F'
Loose moves
U R
Relations
Mirror
OLL 39
Your algorithm backwards
R' U' F U R U' R' F' R
solves OLL 31
That's why your scrambles are never the inverse of the algorithm: you'd be practising OLL 31 without knowing it. CubeDojo builds a random state with this case and checks it comes out.
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