????????
      +---------
NEUEL | NGGUMUWT
       -NEUEL
        =====
         LMJYU
        -PQQWU
         =====
         NNNTRW
        -NRWYTW
         ======
           MGNRT
          -QWNER
           =====
           ?????

base: 14
letters: EFGJLMNPQRTUWY
difficulty: hard
missing: F