y x2 // inspection
D R' B' U' R' F x z U' x' U' D R' D // cross
U y' R' U R U' R' U' R // 1st pair
U U y' R' U2 R U2' R' U R // 2nd pair
U' U' y' R' U2' R U R' U' R // 3rd pair
y' U' y U' R U2' R' U2 R U' R' // 4th pair
R U R' U' R' F R R U R' U' F' // OLL
U U R U R' U' R' F R2 U' R' U' R U R' F' U' // PLL