????????
      +---------
PGLER | TTRHRPEQ
       -PGLER
        =====
        RTHQGP
       -RMLCRU
        ======
         QGPMTE
        -HCLGUH
         ======
          QRMHCQ
         -QHLHMM
          ======
          ??????

base: 11
letters: CEGHLMPQRTU
difficulty: intermediate