NFF
      +--------
WNWGF | FWTLJLG
       -QTYQY
        =====
        NFGWPL
       -NQLJNT
        ======
         NFNWQG
        -NQLJNT
         ======
          NWNTT

base: 11
letters: FGJLNPQRTWY
difficulty: hard
missing: R