????????
      +---------
PTGNT | UPPTUHGG
       -PTGNT
        =====
         MWPWH
        -JHLJW
         =====
          XTJPG
         -XMQLR
          =====
           LLTGG
          -LMRXU
           =====
           ?????

base: 14
letters: GHJLMNPQRTUWXY
difficulty: medium
missing: Y