Sudoku Solver

A console application to solve sudoku puzzles from an input file

Sudoku Rules

1. only 1 copy of a number 1-9 can be present in a 3x3 cell
2. only 1 copy of a number 1-9 can be present in the same column
3. only 1 copy of a number 1-9 can be present in the same row
4. Fill all spaces to win the game without breaking any of the above rules