XWNF
      +---------
WXRGJ | CNCQRWLH
       -WXRGJ
        =====
        XGFJJW
       -XWRHCT
        ======
         JCTQWL
        -JXXFCJ
         ======
          JQQFCH
         -JNCTGN
          ======
           XCQNC

base: 12
letters: CFGHJLNQRTWX
difficulty: intermediate