NQUT
      ----------
 TUTT ) NQEYAWQA
       -WTHTQ
        =====
         QUYNW
        -HTWTN
         =====
          UUNTQ
         -QTYTW
          =====
           TWAEA
          -UTATY
           =====
            WTET

base: 10
symbols: AEFHNQTUWY
difficulty: intermediate
missing: F