Blog posts with problems to get your brain going! You get a new problem every fortnight and the solutions are published later.
If you want the problems delivered to your inbox be sure to subscribe to the Problems newsletter.
The next problem is scheduled for Sunday, 15th of November.
You may notice some problems are missing... I'm still migrating articles from my old blog.
This post's format will be a bit different from the usual and the first of a series of posts of this type. In this post, I will state a problem and then present my solution.