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