Sudoku solver

It's a tool written in ruby which was created to solve sudoku. You can use it as a library or with a command line.

gem install sudoku-solver

If you want to use it on Ubuntu you should add path to folder with gems' executable files (I really don't know why it isn't set by default):

export PATH=$PATH:/var/lib/gems/1.8/bin

Now you can use it by typing:

solve-sudoku file

A file parameter must be a correct path to file containing sudoku and should look like this:

+---+---+---+
| 6 |   | 2 |
|   |   |73 |
|  8| 5 |6  |
+---+---+---+
| 9 |5  |  4|
| 5 |3 8| 7 |
|4  |  9| 1 |
+---+---+---+
|  6| 1 |2  |
| 31|   |   |
| 7 |   | 4 |
+---+---+---+

If you want to use this program as library, please check source of an executable file.