????????
      +---------
JYLET | EMPTPTWU
       -JYLET
        =====
         MLRJT
        -XYPPF
         =====
         RLFGLW
        -RGWWUT
         ======
           LWUMU
          -FYJGU
           =====
           ?????

base: 14
letters: EFGJLMPQRTUWXY
difficulty: medium
missing: Q