????????
      +---------
UUPEF | UNEUMQER
       -UUPEF
        =====
         LQMFQ
        -HFTQX
         =====
         UUEPNE
        -UGEQPH
         ======
          UGGEHR
         - WNWUE
          ======
          ??????

base: 14
letters: EFGHLMNPQRTUWX
difficulty: intermediate