HHF
      +---------
RWMFL | RPCRPFPC
       -WLCHRM
        ======
         WHRCHP
        -WLCHRM
         ======
           LLPFC
          -RWMFL
           =====
           MPNHH

base: 9
letters: CFHLMNPRW
difficulty: intermediate
restrictions: no multiplication