im trying to learn the M2 algorithms for middle layer pieces... it seems that some of the algorithms are wrong
BU , do F' D R' F D' M2 D F' R D' F
UF , do U2 M' U2 M'
FU , do F E R U R' E' R U' R' F' M2
DB , do M U2 M U2
BD , do M2 D R' U R' U' M' U R U' M R D'
^ represent where in the middle layer they are going to go to.
for the first one would U R2 U' B' R' B M2 B' R B U R2 U' I figured this out myself and i seem to be able to mentally see it better