????????
      +---------
YPCUT | NQNYYQQY
       -QUCXPT
        ======
         YYYXQQ
        -YTYGYT
         ======
          YTTCQY
         -HMXUMT
          ======
          ??????

base: 11
letters: CGHMNPQTUXY
difficulty: hard
hints: M << Y, C << P, U << H