Function sudoku_solver::solver::solve

pub fn solve(b: &Board) -> Option<Board>

Solve a sudoku puzzle.

Returns an Option<Board> which is either None, if no solution could be found, or a Some variant wrapping the first solution found.

Example

let board = Board::from(&[
    [0, 0, 0, 2, 6, 0, 7, 0, 1], // row 1
    [6, 8, 0, 0, 7, 0, 0, 9, 0], // row 2
    [1, 9, 0, 0, 0, 4, 5, 0, 0], // row 3
    [8, 2, 0, 1, 0, 0, 0, 4, 0], // row 4
    [0, 0, 4, 6, 0, 2, 9, 0, 0], // row 5
    [0, 5, 0, 0, 0, 3, 0, 2, 8], // row 6
    [0, 0, 9, 3, 0, 0, 0, 7, 4], // row 7
    [0, 4, 0, 0, 5, 0, 0, 3, 6], // row 8
    [7, 0, 3, 0, 1, 8, 0, 0, 0], // row 9
]);

assert!(solve(&board).is_some());