ENRT
      +---------
XPGNQ | LPLRTTYY
       -RQGLE
        =====
        QYRURT
       -QXEQYN
        ======
         EYTEYY
        -EETEPR
         ======
          EUUTTY
         -ETUXXT
          ======
           QGPYR

base: 11
letters: EGLNPQRTUXY
difficulty: intermediate
restrictions: no multiplication