[Cancelled] Checker for 1111 photos

I need a checker to query the user's photo collection to see if he has published at least 1111 photos in his loggs.
The challenge cache is already in the review process and now it is criticized that just no checker is present for review.

I believe it's not possible to create a checker based on photo uploads.

There are the badges for the Fotocount (from bronze to diamand).
GC-Project uses the photos of the user and calculates the respective gemstone.
So it must also be possible to check whether at least 1111 photos are available - Then the challenge would be done. If it is less, the challenge is not yet mastered.

Not all of the details Project-GC retrieves are made available to the checker system. There does not seem to be any function available to retrieve the photos.

Additionally, I believe photos are excluded as challenge conditions by guideline 10:

Quote

Challenge cache criteria must be based upon the type of log, not on the log content.

I give up not yet :)
Is perhaps a checker query in GC-project possible, in which it is checked whether the user has at least reached the Saphier badge at shutterbug?
That would correspond to at least 750 photos.