????????
      +---------
FRLFW | URQURWJN
       -FRLFW
        =====
         JJWMW
        -FRLFW
         =====
         RHHHNJ
        -RRHHML
         ======
          MJJTLN
         -MFRNHQ
          ======
          ??????

base: 11
letters: FHJLMNQRTUW
difficulty: medium