public void pawnPromotion(Point p){
		
		if(b.get(p) instanceof Pawn && p.getY() == 8){
			b.remove(p);
			b.put(p, new Queen(true));
		}
		else if(b.get(p) instanceof Pawn && p.getY() == 1){
			b.remove(p);
			b.put(p, new Queen(false));
		}
		
	}