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