z2
//
inspection
R' U2 R' F U D F
//
cross
U' L' U L D
//
1st pair
U2' R' U' R U2 R' U' R U R' U' R
//
2nd pair
U' R U' R' y U' R' U R
//
3rd pair
U' y2' R U2 R2' U' R2 U' R'
//
4th pair
r U' r' F r' F2 r U F U F'
//
OLL
U x R2' D2 R U R' D2 R U' l U
//
PLL