@Override
        public boolean equals(Object obj) {
            if (obj == null) {
                return false;
            }
            if (getClass() != obj.getClass()) {
                return false;
            }
            final Cell other = (Cell) obj;
            if (super.getX() != other.getX()) {
                return false;
            }
            if (super.getY() != other.getY()) {
                return false;
            }
            return true;
        }