private void free() {
		if (pane != null) {
			coords = block.getCoords();
			for (Point p : coords) {
				if (pane.insertAt().x != -1) {
					pane.cell(maxFall.y + p.y, location.x + p.x).Clear();
				}
				pane.cell(location.y + p.y, location.x + p.x).Clear();
			}
		}
	}