NWW
       +----------
HLMCWN | HMTNWTNGN
        -WWWNWGM
         =======
          LNCCPUG
         -LLLWLML
          =======
           LTPNWUN
          -LLLWLML
           =======
             NPGHT

base: 10
letters: CGHLMNPTUW
difficulty: medium
restrictions: no multiplication