Negating a pool from a search

I just searched kyubey -pool:2939 but it returns some images that are in pool #2939. Is there some other way to negate a pool from a search?

On another note, the page numbers say there's 192 pages of Kyubey but it actually stops on page 186.

The extra pages are most likely from someone purging 5 pages of the qb tag. It doesn't actually subtract the pages containing those images for a few days.

jjj14 said:
I just searched kyubey -pool:2939 but it returns some images that are in pool #2939.

Yeah, trac #885 (wontfix).