MWPV
      +---------
ZMZXL | MJJXPHNH
       -MNMRY
        =====
         LXHGH
        -WJXNR
         =====
          QZJJN
         -YXUZM
          =====
           JJVMH
          -JMQML
           =====
            XYUM

base: 16
letters: GHJLMNPQRTUVWXYZ
difficulty: hard
missing: T