U' L2 U' R2 U' R2 B2 L D' L' R B2 U L B' D' R2 D2 F
Solution
y' x'
//
inspection
M2' U' R B'
//
1st square
r' U' U' r' F
//
1st block
R U' U' R' U' R U R' U' R
//
2nd square
r U' U U' R' U R U R'
//
2nd block
U' U R' R U' R' F R F' r U' r' U' R U' R'
//
CMLL
U' M U' M2'
//
EOLRb
U' M2' U' U' M'
//
EP