OLL 27 · OCLL

Sune

R
U
R'
U
R
U2
R'
How to recognise it
Only one corner shows yellow on top. Hold it at front left: the front-right corner's yellow sticker faces you.
Algorithms
Part of
OLL 12
OLL 41
OLL 42
Relations
Mirror
OLL 26 · Antisune
Your algorithm backwards
R U2 R' U' R U' R'
solves OLL 26 · Antisune
That's why your scrambles are never the inverse of the algorithm: you'd be practising Antisune without knowing it. CubeDojo builds a random state with this case and checks it comes out.
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