OLL · Knight moves

OLL 13

F
U
R
U'
R2
F'
R
U
R
U'
R'
How to recognise it
A line through the left and right edges, plus the front-left corner. The front-right corner's yellow faces you.
Algorithms
Relations
Mirror
OLL 14
Your algorithm backwards
R U R' U' R' F R2 U R' U' F'
solves OLL 9
That's why your scrambles are never the inverse of the algorithm: you'd be practising OLL 9 without knowing it. CubeDojo builds a random state with this case and checks it comes out.
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