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