????????
      ----------
MWYRM ) MRTLRQNM
       -MWYRM
        =====
         XHQLQ
        -YRXEY
         =====
          LEEHN
         -YRXEY
          =====
          NYRGLM
         -NHMMWW
          ======
          ??????

base: 13
symbols: EGHJLMNQRTWXY
difficulty: medium
missing: J