OLL 57
The algorithm, how to recognise it and how to practise it without cheating.
Probability1/108
Moves10
TypeCorners done
Inverse and mirror—
Recommended algorithm
R U R' U' M' U R U' r'10 moves
How to recognise it
All four corners and the left and right edges are yellow on top: hold that line left to right. The front and back edges show their yellow on the sides.
Its inverse is another case
Do the 57 algorithm backwards, r U R' U' M U R U' R', and you are solving 28.
That's why CubeDojo never scrambles 57 that way: it builds a random state with the case fixed, so you practise 57 and not 28.
Practise 57 now
Random-state scrambles, a timer and spaced review. Free, on the web and on your phone.