???????
      +--------
TCQWT | LTCMPQM
       -XMFQX
        =====
        CQMPCQ
       -CFLCMJ
        ======
          FMQTM
         -LPJFL
          =====
          ?????

base: 11
letters: CFGJLMPQTWX
difficulty: hard
missing: G