H
The algorithm, how to recognise it and how to practise it without cheating.
Probability1/12
Moves11
TypePermute the edges
Inverse and mirror—
Recommended algorithm
M2 U M2 U2 M2 U M211 moves
How to recognise it
Headlights on all four sides, each with the opposite colour between them. Any angle works.
Practise H now
Random-state scrambles, a timer and spaced review. Free, on the web and on your phone.