Hello everyone, nice to welcome you on our site, this page even has Level 4 answers. I enjoy it =D
Level 4 - RDLUEAB
The answer to this puzzle is:
Words: LAUDER, DAUBER, AULDER, BELAUD, EARBUD, BALDER, BLARED, BLADER, BURLED, LURED, BARED, DURAL, BLUED, BLARE, ABLED, RUBEL, BALER, LUBED, RUBLE, BALED, BLUER, LADER, DEBAR, BARDE, DAUBE, ABLER, REDUB, BLEAR, UREAL, ALDER, ARDEB, RULED, BEARD, BLUR, DEAR, BEAD, BALD, BARE, ABED, BURA, AULD, RUBE, BURL, DAUB, BLUE, BRAE, RULE, DURE, BURD, DUAL, RUED, DARB, DEAL, BEDU, DRUB, BLAE, BRAD, DALE, ABLE, LEAD, LADE, BEAU, RUDE, LAUD, LUBE, BEAR, DRAB, LURE, BAUD, UREA, BADE, BALE, BLED, LEAR, BRED, EARL, DARE, DURA, LEA, DAB, LED, BAD, LAD, BUD, ERA, BAL, ARE, BAR, RAD, ELD, DEB, DUE, REB, ARB, RUE, RUB, DEL, ALE, RED
Bonus words:
LAUDER, DAUBER, AULDER, BELAUD, EARBUD, BALDER, BLARED, BLADER, BURLED, LURED, BARED, DURAL, BLUED, BLARE, ABLED, RUBEL, BALER, LUBED, RUBLE, BALED, BLUER, LADER, DEBAR, BARDE, DAUBE, ABLER, REDUB, BLEAR, UREAL, ALDER, ARDEB, RULED, BEARD, BLUR, DEAR, BEAD, BALD, BARE, ABED, BURA, AULD, RUBE, BURL, DAUB, BLUE, BRAE, RULE, DURE, BURD, DUAL, RUED, DARB, DEAL, BEDU, DRUB, BLAE, BRAD, DALE, ABLE, LEAD, LADE, BEAU, RUDE, LAUD, LUBE, BEAR, DRAB, LURE, BAUD, UREA, BADE, BALE, BLED, LEAR, BRED, EARL, DARE, DURA, LEA, DAB, LED, BAD, LAD, BUD, ERA, BAL, ARE, BAR, RAD, ELD, DEB, DUE, REB, ARB, RUE, RUB, DEL, ALE, RED