x2 y
//
inspection
D' r U x' D' R D'
//
cross
U' R U R' U' z U R' U'
//
1st pair
U' R U x' U R U'
//
2nd pair
z' U' R U' R' U R' U' R
//
3rd pair
U R U' R' U R U' R'
//
4th pair
U' U' R U R' y' r' U r U' r' U' r
//
OLL
U z' y' R U' R z' R2 U' z U R z' R2 U' U' F
//
PLL