????????
      +---------
YEYTX | EXHGNWYE
       -YEYTX
        =====
        NGTLQW
       - JLWYE
        ======
         QNNJQY
        -GPGYWL
         ======
          QWYEYE
         -QHQQGE
          ======
          ??????

base: 12
letters: EGHJLNPQTWXY
difficulty: medium