x2 // inspection
R' F R2 D2 R D R // cross
U' R U R' U R U' R' // 1st pair
y' U L' U L U y' R' U R // 2nd pair
U' y' R' U R U' R' U' R // 3rd pair
U' U' R U' U' R' U R' F R F' // 4th pair
U2 U r U' r2' U r2 U r2' U' r // OLL
U' R2' F2 R U2 R U2 R' F R U R' U' R' F R2 U // PLL