Venn diagrams, retrograde chess, and behind-the-scenes Christmas lectures all feature in our autumn 2021 edition. Plus all your favourite puzzles & columns.
Mike Fletcher explores the optimal strategy for winning the popular television game show
Surprise yourself by making this thing
This month’s round up of mathematical blog posts from all over the internet
How many did you spot?
Here is a very exciting way to measure how similar is your music playlist between your friends, or how similar are your Facebook contacts.
