CHECKERBOARDS

ab ad ae ah ar as ba be bo de do ed eh er es ha he ho ka od oe oh or os re sh so

abo abs ace ado ads ahs arb arc are ark ars ash ask bad bah bar bas bed bee bes boa bod bos bra bro brr cab cad car cee cob cod cor cos dab dah dak deb dee doc doe dor dos ear edh eds eek eke era ere err ers had hae hao has her hes hob hod hoe hos kab kae kas kea koa kob kor kos oak oar oba obe oca oda ode ods oes ohs oka oke ora orb orc ore ors ose rad rah ras reb rec red ree res rho rob roc rod roe sab sac sad sae sea sec see ser sha she ska sob sod

abed abos aced aces ache acre ados aero ahed akee arbs arch arco arcs ares arks arse bach back bade bads bake bard bare bark bars base bash bask bead beak bear beck beds beer bees berk boar boas bock bode bods bora bore bork bosh bosk brad brae bras bred bree bros cabs cade cads cake carb card care cark carr cars case cash cask ceca cede cees cere cero chad chao char cobs coca cock coda code cods coed coke cord core cork cors cosh crab cred croc dabs dace dahs daks darb dare dark dash dear debs deck deco deer dees deke dere desk dhak dock docs doer does dore dork dorr dors dose drab dree drek each ears ease eche echo edhs eked ekes eras eros errs hack hade haed haes hake hard hare hark head hear hebe heck heed herb herd here hero hers hoar hobs hock hods hoed hoer hoes hoke hora hose kabs kaes kbar keas kerb koas kobs kora kore kors oaks oars obas obes ocas odah odas odea odes ohed okas okeh okes okra orad orbs orca orcs ores orra osar race rack rads rake rare rase rash read rear rebs reck recs rede redo reds reed reek rees resh rhea rhos road roar robe robs rock rocs rode rods roes rose sabe sack sade sake sard sark scab scad scar sear seed seek seer sera sere shad shea shed shod shoe skee soak soar soba soca sock soda soke sora sorb sord sore