LCE
      +--------
RGNRN | PTLQCQT
       -RGNRN
        =====
        NLEYLQ
       -LGTGRR
        ======
         RLPGYT
        -RMGCGQ
         ======
          LLCPE

base: 12
letters: CEGHLMNPQRTY
difficulty: medium
missing: H