10 letter words:
backtracks24,
9 letter words:
backtrack23,
8 letter words:
backcast18,
scatback18,
7 letter words:
caracks15,
taskbar13,
6 letter words:
carack14,
cracks14,
kabars12,
tracks12,
barcas10,
bracts10,
karats10,
scarab10,
carats8,
rabats8,
5 letter words:
aback13,
backs13,
crack13,
kakas13,
bacca11,
barks11,
carks11,
kabar11,
kbars11,
racks11,
stack11,
tacks11,
track11,
araks9,
barca9,
bract9,
cacas9,
carbs9,
crabs9,
karat9,
karst9,
karts9,
katas9,
stark9,
takas9,
brats7,
carat7,
carts7,
rabat7,
sabra7,
sacra7,
scart7,
4 letter words:
back12,
kaka12,
bark10,
bask10,
cark10,
cask10,
kabs10,
kbar10,
rack10,
sack10,
tack10,
arak8,
arks8,
cabs8,
caca8,
carb8,
crab8,
kaas8,
kart8,
kata8,
kats8,
sark8,
scab8,
skat8,
taka8,
task8,
abas6,
acta6,
acts6,
arbs6,
arcs6,
baas6,
bars6,
bast6,
bats6,
bras6,
brat6,
cars6,
cart6,
casa6,
cast6,
cats6,
scar6,
scat6,
stab6,
tabs6,
arts4,
rats4,
star4,
tars4,
tsar4,
3 letter words:
kab9,
ark7,
ask7,
cab7,
kas7,
kat7,
ska7,
tsk7,
aba5,
abs5,
act5,
arb5,
arc5,
baa5,
bar5,
bas5,
bat5,
bra5,
car5,
cat5,
sab5,
sac5,
tab5,
aas3,
ars3,
art3,
ras3,
rat3,
sat3,
tar3,
tas3,
2 letter words:
ka6,
ab4,
ba4,
aa2,
ar2,
as2,
at2,
ta2,