D L2 F2 D2 L2 B U2 F L2 B U2 F' U2 R' B2 L2 D' R' F L D2
z y // inspection
U' R' x' y' D R F U' U' R D // cross
y' R' U' R U' U' R' U R // 1st pair
d R U R' // 2nd pair
U' U' z U' R' U x' z z' R U R2' U' // 3rd pair
z' R R' U U' R U R' // 4th pair
U F R' F' R U2' R U z U' z' U R' U' r // 1LLL