HMUX
      +---------
RMHGE | JXEHGHXJ
       -URQMU
        =====
         PUXPH
        -GJRPH
         =====
         NUUXXX
        -NUPPMN
         ======
            RQJJ

base: 11
letters: EGHJMNPQRUX
difficulty: medium
restrictions: no multiplication