????????
      +---------
EJUYG | YEJGPTNP
       -EJUYG
        =====
        GTYNUT
       -GFNJLQ
        ======
         ELRGRN
        -EYPXEN
         ======
          EEUHFP
         -EGPRRH
          ======
          ??????

base: 14
letters: EFGHJLNPQRTUXY
difficulty: medium