MXMG
      +---------
TGJLW | QYZUTZMZ
       -QGQXL
        =====
         PHLJZ
        -MYUGG
         =====
          HRYXM
         -QGQXL
          =====
          TTLYUZ
         -TVJYLU
          ======
            YVMT

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