Win a copy of the puzzle book Conundrum

We have five copies of Brian Clegg's puzzle book to give away.

Opens 13th September, 2019 00:00
Closes 27th September, 2019 11:59

Fancy yourself a master codebreaker? Could you have worked at Bletchley Park? Find out in Brian Clegg’s puzzle book Conundrum (£8.99, Icon Books).

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The chapters each have a theme, so whether you love science and maths or arts and literature, there are codes for you to crack. There’s also an introduction to codebreaking for the less experienced puzzlers.

We have five copies of Conundrum to give away. All you have to do is read Brian Clegg’s Desperately seeking missing matter: the search for 95 per cent of the Universe and answer the question below.

Conundrum cover

Competition question

Which of these acronyms is a candidate for dark matter?


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