[Burrtools-discussion] a letter from students who are interested in this program

[Jessica Hu <jes...@gm...>]

      Greetings! We are students from National Hsinchu Girls’ Senior High
School and are currently working on a science project regarding tilling a
6x6 grid with tetrominoes. We found Burr tools, an amazing and extremely
complicated program of yours after some browsing, and are deeply interested
in how this program works.



        We have tried reading the user guide and library documentation with
an eye to figuring out how this incredible program works but still failed
to understand how the program managed to solve puzzles. We are curious
about the following questions:



1.      How does the program tell if there are any possible solutions left?

2.      What restrictions are there when it comes to solving the problem?

3.      We noticed that there is a *Move* bar under the *Solution* bar, are
there any priorities when tilling the problem?



It would be a great help if you could give us some help on these problems.
Thank you for reading this letter, we are looking forward to your feedback.
(We are truly sorry for any grammar or spelling errors; English isn’t the
first language here in Taiwan.)



Sincerely,

Ya-Chin Hu, En-Chi Liang, Chieh-Yuan Peng