????????
      ----------
FYUTN ) WPYRURRT
       -WUFNN
        =====
         WXRUR
        -UMRUN
         =====
         FYNNRR
        -FFPXUN
         ======
          FNRYRT
         -FNYMTN
          ======
           ?????

base: 12
symbols: FGMNPQRTUWXY
missing: G Q
difficulty: hard
hints: Q << G