This is a Python implementation of a Sudoku solver and generator.
So far the "hard" and "master" leveled puzzles can be solved. Hopefully, these codes will also solve my addiction to Sudoku.
If you have a friend addicted to Sudoku, please share these codes to them. :)
>>> from sudoku import Sudoku
>>> example = Sudoku(path='./hard_001.txt')
Init the Sudoku board from the file: ./puzzle010.txt
>>> example.show_board()
>>>
|-,3,-,8,7,-,-,-,-|
|8,-,-,-,-,4,-,9,-|
|-,-,4,-,6,-,-,1,-|
|-,-,-,4,5,-,-,2,7|
|-,1,-,7,-,-,-,4,6|
|-,-,3,6,-,-,-,-,-|
|9,-,-,-,-,-,-,-,2|
|-,4,-,-,1,-,-,-,-|
|-,-,1,-,-,5,-,-,-|
>>> example.solve()
Solving the Sudoku...
Done!
>>> example.show_board()
>>>
|1,3,2,8,7,9,4,6,5|
|8,5,6,1,2,4,7,9,3|
|7,9,4,5,6,3,2,1,8|
|6,8,9,4,5,1,3,2,7|
|2,1,5,7,3,8,9,4,6|
|4,7,3,6,9,2,5,8,1|
|9,6,8,3,4,7,1,5,2|
|5,4,7,2,1,6,8,3,9|
|3,2,1,9,8,5,6,7,4|TODO:
- Solving the Soduku from a file using backtracking algorithm;
- Solving the Soduku from a file using constraint propagation (as Constraint Satisfaction Problem);
- Modify the algorithm to solve "grandmaster" leveled puzzles;
- Generating the Sudoku;
@inproceedings{simonis2005sudoku,
title={Sudoku as a constraint problem},
author={Simonis, Helmut},
booktitle={CP Workshop on modeling and reformulating Constraint Satisfaction Problems},
volume={12},
pages={13--27},
year={2005},
organization={Citeseer}
}