OLL · Awkward shapes

OLL 30

F
R'
F
R2
U'
R'
U'
R
U
R'
F2
How to recognise it
Yellow on top: the back and left edges and the two front corners. The back corners' yellow faces left and right.
Algorithms
Relations
Mirror
OLL 29
Your algorithm backwards
F2 R U' R' U R U R2 F' R F'
solves OLL 45
That's why your scrambles are never the inverse of the algorithm: you'd be practising OLL 45 without knowing it. CubeDojo builds a random state with this case and checks it comes out.
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