????????
      +---------
YCRML | CLMNRPWN
       -MTNLP
        =====
         TYRTP
        -WTWMN
         =====
          CHRPW
         -MTNLP
          =====
          YMRCPN
         -YMYTYW
          ======
          ??????

base: 10
letters: CHLMNPRTWY
difficulty: medium