use crate::board::Board;

pub trait Solver {

    /**
     * Finds one solution for the board.
     */
    fn solve(&self, _: &Board) -> Option<Board>;
    
    /**
     * Calculates if there are multiple solutions for the board.
     */
    fn is_unique(&self, _  : &Board) -> bool;

}

pub enum SodokuComplexity {
    Trivial,
    Easy,
    Average,
    Hard,
    Difficult,
    Impossibru
}

pub trait Generator{
    fn generate(&self, _complexity:SodokuComplexity) -> Board;
}