OLL 27 · Sune
The algorithm, how to recognise it and how to practise it without cheating.
Recommended algorithm
R U R' U R U2 R'7 moves · R and U only
Alternatives
(U) L' U2 L U L' U L7 moves · with the left hand(U') R' U2 R U R' U R7 moves · R and U only
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.
Its inverse is another case
Do the 27 · Sune algorithm backwards, R U2 R' U' R U' R', and you are solving 26 · Antisune.
That's why CubeDojo never scrambles 27 · Sune that way: it builds a random state with the case fixed, so you practise 27 · Sune and not 26 · Antisune.
Practise 27 · Sune now
Random-state scrambles, a timer and spaced review. Free, on the web and on your phone.