QUCT
      ----------
 TCTT ) QUYEWHUW
       -HTFTU
        =====
         UCEQH
        -FTHTQ
         =====
          CCQTU
         -UTETH
          =====
           THWYW
          -CTWTE
           =====
            HTYT

base: 10
symbols: CEFHQTUWXY
difficulty: intermediate
missing: X