Please read this before posting in this subforum.
This is a subforum for posting questions as a challenge to other members. If you post a question in this subforum it is because it is an interesting question that you want to share with other members. You should be able to post the solution upon request.
Please do not post a question in this subforum because you need help with it. That's what the other subforums are for.
The Moderators will move or delete questions posted in this subforum that they consider are inappropriate. Moderators may also issue an Infraction or Warning in such instances.