YLG
       +----------
TXXTYT | CYCYYGXLX
        -CRGGRTG
         =======
          TCXYYLL
         -CGTRLTY
          =======
           TTTLYTX
          -TCGLRLL
           =======
             YRTYG

base: 7
letters: CGLRTXY
difficulty: easy
writeup: writeups/04