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