???????
      +--------
TGYGE | LWMJNYE
       -EMYMN
        =====
        MXXPQY
       -MRPJGM
        ======
         RGJWJE
        -RNNLTJ
         ======
         ??????

base: 13
letters: EGJLMNPQRTWXY
difficulty: hard
hints: T << N