????????
      +---------
CPEPY | TYCXYYTT
       -CPEPY
        =====
        UPTHMY
       -UMYNYE
        ======
         RNMUUT
        -RLEYYR
         ======
          RUUXLT
         -LHPUPP
          ======
          ??????

base: 12
letters: CEHLMNPRTUXY
difficulty: medium