Today at the end of another awesome work day as Red Hat interns, some of us sat down to crack these puzzles posted to Planet Classpath. It started out as me, Tony and Lillian. But then Andrew Cagney and Adam Jocksch also joined in. In the end I was the one to crack the last straw of the 12 ball puzzle. You can check out my answer as the comment to the blog post. I’m still trying to figure out a mathematical way to express why this is neccessarily the answer.