6 letter words:
checks17,
sketch15,
cherts11,
5 letter words:
check16,
hecks14,
ketch14,
khets12,
recks11,
chert10,
chest10,
retch10,
techs10,
treks9,
crest7,
4 letter words:
heck13,
khet11,
reck10,
echt9,
etch9,
tech9,
trek8,
eths7,
hers7,
hest7,
hets7,
resh7,
recs6,
sect6,
erst4,
rest4,
rets4,
tres4,
3 letter words:
tsk7,
eth6,
her6,
hes6,
het6,
she6,
the6,
rec5,
sec5,
ers3,
res3,
ret3,
ser3,
set3,
2 letter words:
eh5,
he5,
sh5,
er2,
es2,
et2,
re2,