????????
      +---------
LQFLQ | HYFRJWLJ
       -WLHWG
        =====
        JJNXWW
       - WLHWG
        ======
         TRHNYL
        -TQWEQT
         ======
          LNLGQJ
         -GWXLXH
          ======
          ??????

base: 13
letters: EFGHJLNQRTWXY
difficulty: medium