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https://github.com/razvalex/sudokusat

Sudoku Solver using SAT Solver for Structural Complexity Course
https://github.com/razvalex/sudokusat

c-sharp sat-solver sudoku-solver

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Sudoku Solver using SAT Solver for Structural Complexity Course

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SudokuSAT
=========

Sudoku Solver using SAT Solver for Structural Complexity Course.

Normalize the input, assign sat structures for the current unknown variables.

X 2 X X X X X X X

X X X 6 X X X X 3

X 7 4 X 8 X X X X

X X X X X 3 X X 2

X 8 X X 4 X X 1 X

6 X X 5 X X X X X

X X X X 1 X 7 8 X

5 X X X X 9 X X X

X X X X X X X 4 X

Output will resolve (satisfy) the current sudoku matrix if formula is satisfiable.

[ 1 | 2 | 6 ][ 4 | 3 | 7 ][ 9 | 5 | 8 ]

[ 8 | 9 | 5 ][ 6 | 2 | 1 ][ 4 | 7 | 3 ]

[ 3 | 7 | 4 ][ 9 | 8 | 5 ][ 1 | 2 | 6 ]

[ 4 | 5 | 7 ][ 1 | 9 | 3 ][ 8 | 6 | 2 ]

[ 9 | 8 | 3 ][ 2 | 4 | 6 ][ 5 | 1 | 7 ]

[ 6 | 1 | 2 ][ 5 | 7 | 8 ][ 3 | 9 | 4 ]

[ 2 | 6 | 9 ][ 3 | 1 | 4 ][ 7 | 8 | 5 ]

[ 5 | 4 | 8 ][ 7 | 6 | 9 ][ 2 | 3 | 1 ]

[ 7 | 3 | 1 ][ 8 | 5 | 2 ][ 6 | 4 | 9 ]

Inspired by RogerGuTeng's SudokuSolver written in Java & other solutions written in python.