????????
      +---------
YFQEY | RFCRRLWW
       -YFQEY
        =====
         QTRFL
        -LJWEL
         =====
         GJTFEW
        -GJERGG
         ======
           CCWTW
          -YFQEY
           =====
           ?????

base: 11
letters: CEFGJLQRTWY
difficulty: medium