????????
      +---------
JNPMW | CNJWYPJG
       -JNPMW
        =====
         PCCHP
        -EMHHJ
         =====
          HGXEJ
         -GWWGH
          =====
           WNCMG
          -WJWJY
           =====
           ?????

base: 11
letters: CEGHJMNPWXY
difficulty: intermediate