????????
      +---------
RLPJR | JXGLERHH
       -RLPJR
        =====
         FLQFR
        -FPMEU
         =====
          JQLLH
         -RLPJR
          =====
           LUQGH
          -YFLLE
           =====
           ?????

base: 14
letters: EFGHJLMPQRTUXY
difficulty: medium
missing: T