5 letter words:
baffs13,
boffs13,
4 letter words:
baff12,
boff12,
offs10,
fabs9,
fobs9,
oafs7,
sofa7,
abos6,
boas6,
obas6,
soba6,
3 letter words:
aff9,
off9,
fab8,
fob8,
fas6,
oaf6,
abo5,
abs5,
bas5,
boa5,
bos5,
oba5,
sab5,
sob5,
2 letter words:
fa5,
of5,
ab4,
ba4,
bo4,
as2,
os2,
so2,