OLL 28
The algorithm, how to recognise it and how to practise it without cheating.
Probability1/54
Moves10
TypeCorners done
Inverse and mirror—
Recommended algorithm
r U R' U' r' R U R U' R'10 moves
Alternatives
r U R' U' M U R U' R'10 moves
How to recognise it
All four corners and the back and left edges are yellow on top. The front and right edges show their yellow on the sides.
Its inverse is another case
Do the 28 algorithm backwards, R U R' U' R' r U R U' r', and you are solving 57.
That's why CubeDojo never scrambles 28 that way: it builds a random state with the case fixed, so you practise 28 and not 57.
Practise 28 now
Random-state scrambles, a timer and spaced review. Free, on the web and on your phone.