PZW
      +--------
YMPTN | NTHTXNQ
       -WNTPM
        =====
         WUXWN
        -GYXXH
         =====
         PWVLZQ
        -PHRVML
         ======
           TRJG

base: 16
letters: GHJLMNPQRTUVWXYZ
difficulty: hard
attributes: fun
missing: J