???????
      +--------
PJYHC | LPWHHYY
       -PJYHC
        =====
        PPYEWY
       -PEYJJL
        ======
         XJEWJY
        -XHLMPY
         ======
         ??????

base: 11
letters: CEFHJLMPWXY
difficulty: hard
hints: X << W, M << W
missing: F