HNMM
      +---------
JEJGM | CNLPEJLG
       -JEJGM
        =====
         HJJRJL
        -HPGPTL
         ======
          HTCGNG
         -HPGPTL
          ======
           MFFTH

base: 12
letters: CEFGHJLMNPRT
difficulty: medium