????????
      +---------
LQLEY | XGPXWCLW
       -XLWQQ
        =====
         EYJEC
        -LQLEY
         =====
         QGYGGL
        -QWECXX
         ======
          YJGQXW
         -YLWJLL
          ======
          ??????

base: 12
letters: CEFGHJLPQWXY
missing: F H
difficulty: intermediate
hints: H << L