????????
      +---------
FYPFC | WTGWTYYC
       -RRERW
        =====
        UYPURY
       -ULTLRE
        ======
         FUPGTY
        -FUGCFU
         ======
           RMURC
          -FYPFC
           =====
           ?????

base: 12
letters: CEFGLMPRTUWY
difficulty: challenging
hints: E << T, T << L