x y' // inspection
D F D L R' F R D // cross
R U R' U' U' R U' R' // 1st pair
y' d R U' R' // 2nd pair
L' U2 L d L U L' // 3rd pair
U y' R' U' U' R U R' U' R // 4th pair
U' U R' U' l' U R U' R' U R U' x' U R // OLL
U U' R R' U' R U R' F' R U R' U' R' F R2 U' R' U'