# msolve
[](https://travis-ci.org/github/mkb2091/msolve/builds)
A WIP sudoku solving library
# Goals
Improve performance, potentially via using SIMD, and or GPU
Add sudoku difficulty grading, potentially by counting the number of iterations needed to solve
Add sudoku generation from a seed sudoku
# Usage
To get the first solution to each sudoku in input: msolve solve_one < sudokufile.txt > output.txt
To get the solution for each uniquely solvable sudoku in input: msolve solve_unique < sudokufile.txt > output.txt
To get the first N solutions to each sudoku in input: msolve solve_n N < sudokufile.txt > output.txt
To get information about the sudoku file: msolve info < sudokufile.txt
Example output for info:
0 Solutions: 486451, 1 Solution: 763, 2+ Solutions: 12786
To list all puzzles with a single unique solution: msolve find_with_single_solution < sudokufile.txt > output.txt
To list all puzzles with at least one unique solution: msolve find_with_solution < sudokufile.txt > output.txt
To get the number of solutions of each puzzles, up to a maximum of N: msolve count_solutions N < sudokufile.txt > output.txt