NGJX
      ----------
NNTWC ) UHWWJYWN
       -CUTNT
        =====
         HUYGY
        -XXUCJ
         =====
         GNYNTW
        -GYGTLH
         ======
          YCCWJN
         -YHCUXU
          ======
            UTLW

base: 11
symbols: CGHJLNTUWXY
difficulty: intermediate
restrictions: no multiplication