Ua Perm
All four corners are solved and one side is a full bar of three; the other three edges cycle. Ua and Ub turn them in opposite directions, so follow the arrows.
M2 U M U2 M' U M27 moves · Probability 1/18 · Edges UR→UL→UF→UR · 2-look PLL step 2 (edges) · Mirror: Ub Perm
Setup: apply these moves to a solved cube to reach this case
M2 U' M U2 M' U' M2Other algorithms
RU'RURURU'R'U'R2