Conundrum: Crack the Ultimate Cipher Challenge

by Brian Clegg

Overview

**'Title of Most Fiendish Book goes to Conundrum: Crack the Ultimate Cipher Challenge by the ever-excellent science writer Brian Clegg.' Daily Mail, Books of the Year**



The ultimate trial of knowledge and cunning, Conundrum features 200 cryptic puzzles and ciphers. The solutions link throughout the book - so you need to solve them all to get to the final round. 



With a focus on ciphers and codebreaking, Conundrum contains twenty sections, each built around a specific subject from music to literature, physics to politics. To take on Conundrum you need good general knowledge and the ability to think laterally. But if you need help, there are plenty of hints to point you in the right direction.



Whether you attempt to crack it alone or work in a team, Conundrum will challenge you to the extreme.



Can you take on Conundrum and win? There's only one way to find out.

Product Details

ISBN-13:	9781785784101
Publisher:	Amberley Publishing
Publication date:	06/06/2019
Pages:	240
Sales rank:	1,096,190
Product dimensions:	5.10(w) x 7.70(h) x 1.10(d)

About the Author

Brian Clegg's most recent books are The
Reality Frame (Icon, 2017), What Colour is the Sun? (Icon, 2016) and
Ten Billion Tomorrows (St Martin's Press, 2016). His Dice World
and A Brief History of Infinity were both longlisted for the Royal
Society Prize for Science Books. He has also written Big Data and Gravitational Waves for Icon's
Hot Science series. Brian has written for numerous publications including The
Wall Street Journal, Nature, BBC Focus, Physics World, The Times and The
Observer. He is editor of popularscience.co.uk and blogs at brianclegg.blogspot.com.

Read an Excerpt

Decrypt the title of this well-known novel:
YMJ HFYHMJW NS YMJ WDJ

The classic movie Casablanca is set during wartime, when conveying secrets safely was particularly important. Casablanca is also an unusual word because of the number of times it features the letter A. Our codemaker, inspired by watching Humphrey Bogart and Ingrid Bergman, has designed a cipher which involves choosing a single letter which will appear repeatedly in the enciphered message. The message is simply found by taking each of the letters that appears immediately after the repeated letter. Unfortunately, she didn’t say what that repeated letter is.
Source: I BET PEWS OR LEISURE CHAINS CAN SEEM TO STINK OF EFFORT, GEORGE, UNDER NO ILLUSIONS OF VANITY.

These numbers are a selection from a series (there are some gaps): 1066, 1145, 1456, 1682 and 1986.
What numbershould immediately follow 1682?