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Venn diagrams, retrograde chess, and behind-the-scenes Christmas lectures all feature in our autumn 2021 edition. Plus all your favourite puzzles & columns.

A great start to the month of Maying

We created hot ice from scratch, a solution that remains liquid even below its freezing point!

Some surprising mathematical facts

Find your perfect partner with this wonderful tree diagram!

An easy equation to remember for your driving theory test, with dangerous consequences