L2 R2 B2 L2 D2 L2 U L2 U L2 F' L2 F D2 R' F R2 U' B2
Solution
y'
//
inspection
L' R' D' R' D
//
cross
R' U' R U R' U' U' R
//
1st pair
R U R' U y' R' U R U' R' U R2
//
2nd pair
U' U' R' d R' U' R
//
3rd pair
U' R U' U' R' U R U' R'
//
4th pair / OLS
U' R U R' F' R U R' U' R' F R2 U' R' U'
//
PLL