??????
     +-------
HQRX | CXFRLH
      -LQXG
       ====
       GXLLL
      -GUQGF
       =====
        GRXWH
       -GUQGF
        =====
        ?????

base: 11
letters: CFGHLPQRUWX
difficulty: hard
attributes: engaging
missing: P