R' U2 F' U' R2 F2 D2 U R2 B' U D' F' B2 U R F' D L' F' B L' U' L2 F'

x' // inspection
(U' D) R' z U2' x' D2 // cross
U' R U' R' U' R U2' R' // 1st pair
R' U R // 2nd pair
U' (y z) U R U' R U R U' // 3rd pair
(x z') U' R U2' R' r R' U R U' r' // 4th pair / EOLS
U2' R' U R U' R2 (z x') D' R' D R (x' y) U R U' R' U2' (x y) U2' // PLL