Condition statements for Widget Logic

Hi, I’m using Widget Logic to manage conditional appearance of Widgets in the sidebar.

I have a page structure:

https://www.domain.com/products/prod1/
https://www.domain.com/products/prod1/screenshots
https://www.domain.com/products/prod1/tour
https://www.domain.com/products/prod1/foo

prod1’s ID is 602. I want the widget to appear on page 602 and all URLs descendant from page 602. Here’s what I’ve tried:

global $post; return (is_page(602) || $post->post_parent==”602″);

and

global $post; return (is_page(602) || in_array(602,get_post_ancestors($post)));

Neither of these seem to evaluate correctly. The widget is shown on page ID 602, but not on children. What am I doing wrong?