???????
      +--------
CCGQL | CJYPGYN
       -CCGQL
        =====
         YPPLY
        -YJCPQ
         =====
          NUPGN
         -NYJQH
          =====
          ?????

base: 11
letters: CGHJLNPQTUY
difficulty: hard
hints: C << H
missing: T