????????
      +---------
NETGG | XPLEQPTY
       -UJEYU
        =====
        NLFPEP
       -NJQQXT
        ======
         JYETQT
        -JMLJUL
         ======
          JQNEJY
         -QXQUFG
          ======
          ??????

base: 14
letters: EFGJLMNPQTUWXY
difficulty: hard
missing: W