QNEY
      ----------
 YEYY ) QNHCATNA
       -TYXYN
        =====
         NECQT
        -XYTYQ
         =====
          EEQYN
         -NYCYT
          =====
           YTAHA
          -EYAYC
           =====
            TYHY

base: 10
symbols: ACEHNQTWXY
difficulty: intermediate
missing: W