Files:

PL_MODEL_x.txt  (contains the linear programming model generated by my program)

PL_SOL_x.txt    (contains the report generated by LINGO with the solution of the model)

PL_SUDOKU_x.txt (contains the Sudoku armed with PL_SOL_x.txt values)

SUDOKU.sol      (always contain the last armed Sudoku by my program)

SUDOKU_SOL.csv  (contain solution: model 1 to 12 (csv format))

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The x in the file name represents the number of the model.

Model 0        : New Sudoku generated by my program
Model 1 to 10  : Examples of Sudoku provided by Rathinagiri
Model 11 and 12: Difficulty: Very Hard, according to the site http://www.sudoku.name


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Verification of the results of the linear programming model:

If you have not installed  LINGO or MPL:

1) Copy to the clipboard the contents of files PL_SOL_x.TXT

2) Select the tab [READ_SOLUTION_LP_MODEL] of my program,
 
   press the button [PASTE_CLIPBOARD] and after press 

   the button [READ_SOLUTION] to get the full Sudoku (or see the file PL_SUDOKU_x.TXT).

