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Sudoku_Backtracking

Sudoku program made using C# backtracking

Initial value of sudoku

int[, ] board = { 
    { 3, 0, 6, 5, 0, 8, 4, 0, 0 },
    { 5, 2, 0, 0, 0, 0, 0, 0, 0 },
    { 0, 8, 7, 0, 0, 0, 0, 3, 1 },
    { 0, 0, 3, 0, 1, 0, 0, 8, 0 },
    { 9, 0, 0, 8, 6, 3, 0, 0, 5 },
    { 0, 5, 0, 0, 9, 0, 6, 0, 0 },
    { 1, 3, 0, 0, 0, 0, 2, 5, 0 },
    { 0, 0, 0, 0, 0, 0, 0, 7, 4 },
    { 0, 0, 5, 2, 0, 6, 3, 0, 0 }
};

Solution after 770 iterations:

 ------------------- 
 | 316 | 578 | 492 | 
 | 529 | 134 | 768 | 
 | 487 | 629 | 531 | 
 ------------------- 
 | 263 | 415 | 987 | 
 | 974 | 863 | 125 | 
 | 851 | 792 | 643 | 
 ------------------- 
 | 138 | 947 | 256 | 
 | 692 | 351 | 874 | 
 | 745 | 286 | 319 | 
 -------------------

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