LGET
      +---------
YXGHH | YHLEYXXX
       -YXGHH
        =====
         EGQLXX
        -TWHTXQ
         ======
          WHWYWX
         -WTEWJY
          ======
           XHWLJ

base: 13
letters: EGHJLMPQTUWXY
hints: M << J, P + P = Q
difficulty: medium
missing: M U P