TLH
       +---------
YPNTEP | RPTFHFNP
        -YPNTEP
         ======
         ENTPTTN
        -TWXNRNX
         =======
          TERPNTP
         -TTCNHPC
          =======
            CRFLW

base: 12
letters: CEFHLNPRTWXY
difficulty: medium