x y2 // inspection
D' M' U2 x' u' // cross
U' R U R' d R' U' R // 1st pair
y' U' R' U' R U2 R U' R' // 2nd pair
y' L U' L' // 3rd pair
U2' R U' R2' F R F' // 4th pair / EOLS
R U2' R2' U' R2 U' R2' U2 R // OLL
U F R U' R' U' R U R' F' R U R' U' l' U R U'