OLL 50
L · 3 of 9 top stickers yellow
r' U r2 U' r2 U' r2 U r'9 moves · Probability 1/54 · Mirror: OLL 49
Setup: apply these moves to a solved cube to reach this case
r U' r2 U r2 U r2 U' rL · 3 of 9 top stickers yellow
r' U r2 U' r2 U' r2 U r'9 moves · Probability 1/54 · Mirror: OLL 49
r U' r2 U r2 U r2 U' r