????????
      +---------
WQMLG | YWHYMLPQ
       -YMGGMW
        ======
         LHYGQP
        -MGMPYP
         ======
          HGLHEQ
         -HHQYTL
          ======
          ??????

base: 11
letters: CEGHLMPQTWY
missing: C
difficulty: hard