????????
      ----------
TEHTU ) UYNHGYUP
       -TEHTU
        =====
         HUJPY
        -PJGJG
         =====
          JHLUU
         -QUTMP
          =====
          YMXHJP
         -YEUXUH
          ======
          ??????

base: 14
symbols: EGHJLMNPQTUWXY
difficulty: medium
missing: W