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