????????
      +---------
FHQGY | YLTUMWFW
       -YTYML
        =====
         YLQHW
        -YTYML
         =====
          GFPTF
         -YTYML
          =====
           XGFWW
          -QEHQT
           =====
           ?????

base: 13
letters: EFGHLMPQTUWXY
difficulty: medium