Title doesn't really reflect what it is. It's a game-based programming challenges site. It isn't a site to learn but practice and improve your current skills.<p>Surprisingly, though a cool site, it only had one discussion in the past for the few years it is being submitted: <a href="https://news.ycombinator.com/item?id=12535553" rel="nofollow">https://news.ycombinator.com/item?id=12535553</a>