F2L 23
The algorithm, how to recognise it and how to practise it without cheating.
Recommended algorithm
U2 R2 U2 R' U' R U' R28 moves · R and U only
Alternatives
R2 U R' U R U2 R' U' R'9 moves · R and U onlyR' U' R U' R' U2 R2 U2 R'9 moves · R and U onlyR U R' F' U F R U R'9 moves
How to recognise it
White on top, corner above the slot; the edge is beside it in front and their front stickers match.
Its inverse is another case
Do the 23 algorithm backwards, R2 U R' U R U2 R2 U2, and you are solving 14.
That's why CubeDojo never scrambles 23 that way: it builds a random state with the case fixed, so you practise 23 and not 14.
Practise 23 now
Random-state scrambles, a timer and spaced review. Free, on the web and on your phone.
Other cases: Connected on top
11
U' R U2 R' U F' U' FConnected on top · 1/3812R' U2 R2 U R2 U RConnected on top · 1/3813R U R2 F R F2 U' FConnected on top · 1/3814U' R U' R' U R U R'Connected on top · 1/3815F' U F U2 R U R'Connected on top · 1/3816R U' R' U2 F' U' FConnected on top · 1/3817R U2 R' U' R U R'Connected on top · 1/3818F' U2 F U F' U' FConnected on top · 1/3824F U R U' R' F' R U' R'Connected on top · 1/38