OLL 45
The algorithm, how to recognise it and how to practise it without cheating.
Probability1/54
Moves6
TypeT shapes
Inverse and mirror—
Recommended algorithm
F R U R' U' F'6 moves
How to recognise it
A T shape: the right column and the left edge, with headlights on the left side.
Its inverse is another case
Do the 45 algorithm backwards, F U R U' R' F', and you are solving 44.
That's why CubeDojo never scrambles 45 that way: it builds a random state with the case fixed, so you practise 45 and not 44.
Practise 45 now
Random-state scrambles, a timer and spaced review. Free, on the web and on your phone.