????????
      +---------
FLLLU | EEYREHHX
       -NWWQL
        =====
        LQHLNH
       -LPJJNY
        ======
         LXWYJH
        -LNXYGH
         ======
          LRGJGX
         -LQNNXF
          ======
          ??????

base: 14
letters: EFGHJLNPQRUWXY
difficulty: medium