Hmm? I cannot understand what to do exactly...
I know the LL alg, but should I solve it in another way?
Scramble: L2 D' R B2 R' D L U2 L
Turn pre-scramble R' for better understanding.
Pseudo F2L: R
LL: F' (U B' Dw2 B U' B' Dw2 B) F
Correct pseudoness: R'
No, this is not the right solution. It must be a linear solve. No pre-moves allowed.