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/*
* Copyright (C) 2022 Camden Dixie O'Brien
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this program. If not, see
* <https://www.gnu.org/licenses/>.
*/
#ifndef SOLVE_H
#define SOLVE_H
#include "sud.h"
/**
* Attempt to solve the given sudoku. Finishes when no rules match for
* an entire pass over the puzzle, returning the number of passes, or
* -1 on error.
*/
int solve(struct sudoku *sud);
#endif