????????
      +---------
QRFXQ | JQJQYYYX
       -QRFXQ
        =====
        WHYYPY
       -WWMGFN
        ======
         EFHEYY
        -ELQNRQ
         ======
          XWFYPX
         -WJMWQQ
          ======
          ??????

base: 14
letters: EFGHJLMNPQRWXY
difficulty: hard