?????????
      +----------
GNLQG | LUXQHHTEN
       -GNLQG
        =====
         HRYEH
        -GNLQG
         =====
         TUQXET
        -TTLENY
         ======
          RNLUTE
         -RQNHRY
          ======
           QNHXEN
          -QGQFYY
           ======
           ??????

base: 12
letters: EFGHLNQRTUXY
difficulty: intermediate