SUDOKUS is a playable word

sudoku Scrabble® Dictionary

noun
pl. sudokus
a puzzle involving the numbers 1 through 9
37 Playable Words can be made from "SUDOKUS"
   2-Letter Words (6 found)
   3-Letter Words (11 found)
   4-Letter Words (13 found)
   5-Letter Words (5 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)