Multiple files with counter - delete all except latest

[paperlessmessier81]

I'm looking for a way to only keep the latest version of an updated file in a folder. I tried to work with "date added is among 1 most recent" but that also matches other files in the folder even when combined with a file name matcher and nested conditions. Am I missing something or is this really only possible by scripting it?

[Mr_Noodle]

Can you post your rule?