y2 x // inspection
r' R' U F' D2' R' // cross
y' R U' R' // 1st pair
R' U R y U2' R U R' // 2nd pair
y R' U' R U2' R' U' R U R' U' R // 3rd pair
y' R U R U R U' R' U' R' // 4th pair
U' R U2' R' U' R U' R' // OLL
U U' z U' R' U R U F' U2' R U R U' R' U F // PLL