z y2 // inspection
D2 L R u' R // cross
R U' U' R' d R' U' R // 1st pair
U' U' R U R' L U L' // 2nd pair
U' R U' R' U R U R' // 3rd pair
y' R U' R' y' U' R' U R U R' U R U' R' U R // 4th pair (EO)
R' U' R U' R' U2 R // OLL
R' U' F' R U R' U' R' F R2 U' R' U' R U R' U R U // PLL