????????
      +---------
RXYFR | YXWFFREQ
       -XHFYX
        =====
         CRHER
        -WEYEF
         =====
          FLQEE
         -JLFXE
          =====
          RLYYLQ
         - QCQWC
          ======
          ??????

base: 11
letters: CEFHJLQRWXY
difficulty: medium