pub enum Player {
    White,
    Black,
}

pub enum Piece {
    Pawn,
    Bishop,
    King,
    Rook,
    Queen,
    Knight,
}

pub type Square = Option<(Player, Piece)>;

pub fn main() {
    println!("Player: {}", std::mem::size_of::<Player>());
    println!("Piece: {}", std::mem::size_of::<Piece>());
    println!("(Player, Piece): {}", std::mem::size_of::<(Player, Piece)>());
    println!("Option<(Player, Piece)>: {}", std::mem::size_of::<Square>());
}