Diagonal swap
The algorithm, how to recognise it and how to practise it without cheating.
Probability1/6
Moves17
TypePermute the corners
Inverse and mirror—
Recommended algorithm
F R U' R' U' R U R' F' R U R' U' R' F R F'17 moves
How to recognise it
No side has headlights: two diagonal corners must swap. Any angle works; the edges don't matter yet.
Practise Diagonal swap now
Random-state scrambles, a timer and spaced review. Free, on the web and on your phone.