????????
      +---------
TGPTP | YJGUTWRT
       -RUPRP
        =====
        NEMQTW
       -NPXEYP
        ======
          JJWWR
         -TGPTP
          =====
          GTWERT
         -GEEMQP
          ======
          ??????

base: 13
letters: EGJMNPQRTUWXY
difficulty: medium