????????
      +---------
TNNPP | YYHYTXRN
       -TNNPP
        =====
        MWEQYX
       -XPYRQN
        ======
         NPHPHR
        -NYRWLN
         ======
          TXFHEN
         -NULYUM
          ======
          ??????

base: 14
letters: EFHLMNPQRTUWXY
difficulty: medium