????????
      +---------
QXCMX | QMNYMJQN
       -QXCMX
        =====
         JXEYJ
        -XUMWE
         =====
          JQJTQ
         -XUMWE
          =====
           QMHJN
          -QXCMX
           =====
           ?????

base: 12
letters: CEHJMNQTUWXY
difficulty: medium