Ha! Thanks for introducing me to thatβ¦mad!
12.11.2025 12:32 β π 1 π 0 π¬ 0 π 0
Devised by computer science superstar Michael Rabin in the 1980s, it's an all time classic
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A wonderful puzzle rescued from oblivion.
www.theguardian.com/science/2025...
Some light entertainment
www.theguardian.com/science/2025...
An oldie but a goodie
www.theguardian.com/science/2025...
Are you a Prime Target?
www.theguardian.com/science/2025...
Quizzers in a queue www.theguardian.com/science/2025...
20.01.2025 09:13 β π 1 π 0 π¬ 0 π 0
We have been waiting for more than half a millenium for this numerical felicity.
2025 will be the first year since 1520 that is in the five times table.
www.theguardian.com/science/2024...
It is also available at your local bookshop:
uk.bookshop.org/p/books/the-...
My new book is ONLY A FIVER for today and to celebrate my publishers made me a Xmas JPEG
You can get it here: amzn.to/4gk4Ra8
Was reading the new Sally Rooney when up popped a puzzle...
www.theguardian.com/science/2024...
The hardest part about writing a puzzle column in a newspaper format is having to write a catchy headline, and finding a picture from the Guardian archive that somehow fits.
But it does allow opportunities for humour, I guess.
www.theguardian.com/science/2024...
Hello - wow it's nice to be on here. Apols for beginning with some self promotion but my new book THINK TWICE is 99p on Kindle for one day today.
Don't think twice!
amzn.to/3YQ6iWo