Way to list pages that are viewable/not viewable by certain groups?

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I am trying to build in an "approval process", for building a site.
The plan for each page creator to change the permissions of each page they feel are "not ready" by unchecking the Ready group checkbox. This is great, because we can make progress, but not show pages for approval until we feel like they are ready to go.

Question: How can I go about making a page list that displays only the pages that the Ready group cannot see? This would be the final piece in a very smooth approval process.

-Foster

foster