????????
      +---------
TQTNN | NJHYGNJF
       -TQTNN
        =====
        QQGPRN
       -QPFWEQ
        ======
         PMJHTJ
        -PRQMHP
         ======
          PHPPTF
         -PRQMHP
          ======
          ??????

base: 14
letters: EFGHJLMNPQRTWY
difficulty: hard
missing: L