y2 x
//
inspection
U' R' U r' D L
//
cross
U' L' U L U L' U' L
//
1st pair
U R' U' R U' R' U R
//
2nd pair
U' U R U' R' U R U' R' L U2 L'
//
3rd pair
F' U' F U' R U R'
//
4th pair
U' U' F R' F' R M' U R U' r'
//
COLL
U' R' U R' U' R' U' R' U R U R2'
//
EPLL