richt ircht rciht criht icrht cirht rihct irhct rhict hrict ihrct hirct rchit crhit rhcit hrcit chrit hcrit ichrt cihrt ihcrt hicrt chirt hcirt ricth ircth rcith crith icrth cirth ritch irtch rtich trich itrch tirch rctih crtih rtcih trcih ctrih tcrih ictrh citrh itcrh ticrh ctirh tcirh rihtc irhtc rhitc hritc ihrtc hirtc rithc irthc rtihc trihc itrhc tirhc rhtic hrtic rthic trhic htric thric ihtrc hitrc ithrc tihrc htirc thirc rchti crhti rhcti hrcti chrti hcrti rcthi crthi rtchi trchi ctrhi tcrhi rhtci hrtci rthci trhci htrci thrci chtri hctri cthri tchri htcri thcri ichtr cihtr ihctr hictr chitr hcitr icthr cithr itchr tichr ctihr tcihr ihtcr hitcr ithcr tihcr hticr thicr chtir hctir cthir tchir htcir thcir
Note: these 'words' (valid or invalid) are all the permutations of the word richt. These words are obtained by scrambling the letters in richt.