WXMT
      +---------
WFJLT | JUFHUMGR
       -WFJLT
        =====
         GUXRM
        -MLYXG
         =====
         WNNMPG
        -WRGFUL
         ======
           QWRHR
          -NPQGW
           =====
           WWFMT

base: 15
letters: FGHJLMNPQRTUWXY
difficulty: hard