This blog has a really interesting assortment of articles on mathematics and programming. You can use the tags to your right to find topics that interest you, or you may want to have a look at

- the problems I wrote to get your brain working;
- some twitter proofs of mathematical facts.

You can also subscribe to the blog newsletter.

In this article we use (finite state) automatons to count 698,438,863,898,480,640 passwords in a couple milliseconds.

Syncro is a beautiful game where you have to unite all the petals in a single flower. In how many moves can you do it?