This puzzle 39 extra words make it fun to play.
File pdf for level 664
The words included in this word game are:
DUE, NUN, RED, RUN, URN, RUE, DUN, DUKE, DUNE, RUDE, NUKE, DUNK, NERD, NUDE, REND, RUNE, DRUNK, UNDER, DRUNKEN.
The extra or bonus words are:
KERN, UNKED, UKE, DEN, RUED, NERK, END, URE, ERK, DREK, URD, RUND, DERN, UNDE, DURE, UNKEND, NUDER, ERN, NEUK, DURN, DUNKER, NUR, NEK, NURD, URDE, EUK, KUNE, REN, RUD, KUE, KNUR, RENK, NUKED, KED, UNRED, RUNED, KEN, NED, DUNNER.