B' U2 L2 B' R2 B R2 F L2 R2 U' L2 D R2 F U' R' F L D

z2 // inspection
L' R2 y' R' U' U' U U' R' F R // cross
U' R U' U' R2' U' R // 1st pair
U R U' U' R' U' R U R' // 2nd pair
U y' L' U L // 3rd pair
U' U' F' U F U R U' R' // 4th pair
U' r U' r' U' r U r' y' R' U R // OLL
U R U R' F' R U R' U' R' F R2 U' R' U // PLL