A C based sudoku solver I wrote for fun
First pass at a file format (maybe more to come?)
+-----+-----+-----+
|0 0 0|0 0 0|0 0 0|
|0 0 0|0 0 0|0 0 0|
|0 0 0|0 0 0|0 0 0|
+-----+-----+-----+
|0 0 0|0 0 0|0 0 0|
|0 0 0|0 0 0|0 0 0|
|0 0 0|0 0 0|0 0 0|
+-----+-----+-----+
|0 0 0|0 0 0|0 0 0|
|0 0 0|0 0 0|0 0 0|
|0 0 0|0 0 0|0 0 0|
+-----+-----+-----+