Additional sources for challenges

Are there any good sources for Python challenges outside of FreeCodeCamp? I love math, so if they are heavy on that, it’s a bonus.

You can try projecteuler’s website. Here is just(just :upside_down_face:) 480 euler problems.
There, if I am not mistaken, like 600 of them, and the new ones are added regularly.
UPDATE. 796 math-related problems right now

Thanks! Those look epic.