No. Good candidates don't want or need this. Like every other job-related product or service, this is optimizing for the employer, not the employee.

It's a engineer's market right now. Find ways to make it easier for them.

Last year I piloted a project where I paid engineers ~$375 for 4 or 5 hours to work through code with me. By the end of it, if they were an engineer I would work with, I would recommend them to a select group of companies that I felt were the best places to work (great product, team, environment). The condition was that when I referred an engineer, they must be considered to have already passed the technical interview. At that point, they were simply there to see if they were a cultural fit and talk tech. Maybe some light technical questions, no white boarding or trivia.

This afforded the candidates the ability to fast track to the final round of an interview with 5-6 companies. And they got paid to do it.

It worked remarkably well, all parties loved, and it to this day I still get emails from companies and candidates asking if I'm still doing it. Alas, I a full-time founder and cannot do that anymore.

But should anyone want to take my idea, I can assure there is a demand for it, and it pays incredibly well.