A step by Step Solution of Rubik's "Magic Cube"
7. Put U corners in place. (contents)
7.b. In eight cases out of twelve, one U corner is in its correct
place, though possibly disoriented, and the other three want to be cycled.
Turn the cube so the correctly placed piece is at the URF corner.
7.b.ii. If the three U corners want to be cycled
counterclockwise, as shown. (show)
Apply URU'R'·L'·RUR'U'·L.
(shortcut URU'L'·UR'U'L)