That's really interesting. If there is criteria beyond the solution you produce, they should really list that clearly on the site. If I don't know that and I'm

That's really interesting. If there is criteria beyond the solution you produce, they should really list that clearly on the site. If I don't know that and I'm applying, I might be only half-focusing while doing other things and take a long time and maybe not come up with the perfect solution right away. I think this kind of extra testing could be detrimental because it's going to stress people out. Give a hacker a fun challenge and set him to work, he'll probably do it better and faster than if you set him in an empty room with a big timer and people scowling at him.