????????
      +---------
MLPGJ | WRQEQTTT
       -MLPGJ
        =====
        JPYMYT
       -PWNMXY
        ======
         JNXTWT
        -PWNMXY
         ======
          NRQYWT
         -LYWNQM
          ======
          ??????

base: 14
letters: EFGJLMNPQRTWXY
difficulty: intermediate
missing: F