6 letter words:
checks17,
5 letter words:
check16,
hecks14,
chess10,
4 letter words:
heck13,
lech9,
elks8,
leks8,
shes7,
cels6,
cess6,
secs6,
less4,
sels4,
3 letter words:
elk7,
lek7,
hes6,
she6,
cel5,
sec5,
els3,
ess3,
les3,
sel3,
2 letter words:
eh5,
he5,
sh5,
el2,
es2,