????????
      +---------
RRYYU | LYGQTTLY
       -MMUGR
        =====
         TXFQT
        -RRYYU
         =====
          TMEGL
         -RRYYU
          =====
          QRFRPY
         -QYYNPN
          ======
          ??????

base: 14
letters: EFGLMNPQRTUWXY
difficulty: hard
missing: W