????????
      +---------
JXMWP | UGTULJWW
       -JXMWP
        =====
        WWLJMJ
       - LJUJW
        ======
         JJLGMW
        -JMUGJU
         ======
          WMGLXW
         -WMTXUX
          ======
          ??????

base: 9
letters: GJLMPTUWX
difficulty: intermediate