8 letter words:
rucksack20,
6 letter words:
cracks14,
crucks14,
5 letter words:
crack13,
cruck13,
karks13,
carks11,
cauks11,
racks11,
rucks11,
rakus9,
arcus7,
scaur7,
4 letter words:
kaks12,
kark12,
cark10,
cask10,
cauk10,
cusk10,
rack10,
ruck10,
sack10,
suck10,
arks8,
auks8,
ksar8,
raku8,
rusk8,
sark8,
skua8,
arcs6,
cars6,
crus6,
curs6,
rucs6,
scar6,
scur6,
rusa4,
sura4,
ursa4,
3 letter words:
kak11,
ark7,
ask7,
auk7,
kas7,
ska7,
suk7,
arc5,
car5,
cru5,
cur5,
ruc5,
sac5,
ars3,
ras3,
sar3,
sau3,
sur3,
2 letter words:
ka6,
ar2,
as2,
ur2,
us2,
