??????
    --------
GGU ) XRHFGN
     -WXR
      ===
       FNF
      -UUN
       ===
       RMNG
      -RGMG
       ====
        RFQN
       -RUFW
        ====
        ????

base: 11
symbols: FGHLMNQRUWX
difficulty: hard
missing: L