?????????
      +----------
NNRWR | NRXMWQERP
       -TQLFFY
        ======
         RUXEPE
        -RWXTXM
         ======
           QYJER
          -UUNTT
           =====
           ERPYYP
          -EMQJER
           ======
           ??????

base: 14
letters: EFJLMNPQRTUWXY
difficulty: medium