Solving sudoku puzzles with perl

Solving sudoku puzzles manually is quite a boring thing to do IMHO. Now writing a working solution to all 9×9 sudoku puzzles is pure fun! I wrote this script a while ago, it was a fun way to learn perl. Yes it was my very first contact with perl, so do not bash!

I wrapped it into a a minimalist CGI interface, simple insert an url like this one in your browser and you’ll get the solution to your puzzle.

http://lamehacks.com/sudoku/sudoku.pl?puzzle=.14.6.3..62…4..9.8..5.6…6.2….3.7..1..5.5….9.6…6.2..3.1..5…92..7.9.41.

you can use zeros instead of dots if you preffer, both will work. In order to improve readability, vertical bars can be used as they will be ignored by the solving script. So you can use an url like this intead:

http://lamehacks.com/sudoku/sudoku.pl?puzzle=|.14.6.3..|62…4..9|.8..5.6..|.6.2….3|.7..1..5.|5….9.6.|..6.2..3.|1..5…92|..7.9.41.|

Feel free to look at or download the source code:
http://lamehacks.com/sudoku/sudoku.txt

Tags: cgi, perl, programming, sudoku

This entry was posted on Saturday, November 8th, 2008 at 09:00 and is filed under computer stuff, programming. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.