A recursive sudoku solver. Currently uploaded as is.
Change the input sudoku by using the -f flag followed by a sudoku in the format below.
000097040406200000709015200502000100000000490080000005000000529200000004000050870
000006430023001090040007002807003600002869500006700208200100060060300980084600000
001006020260070000780930040800027090042000760090640003050089072000010089020700400
009002704000000008800030650000690005905000403600058000063080002100000000408100900
000097040406200000709015200502000100000000490080000005000000529200008004000050870