ENGLISH

The GCHQ Puzzle Book II: From WWI ciphers to modern cyber security, pit your wits against 100 years of codebreaking genius

By GCHQ

Book information

Publisher
Penguin Books Ltd
Year
2018
ISBN
9780241365434, 9780241365458
Language
english
Format
EPUB
Filesize
24 MB (24862103 bytes)
Pages
\0
Time added
2024-06-20 06:23:45

Description

With their first bestselling book, The GCHQ Puzzle Book, the UK's intelligence and security experts tested us with puzzles, codes and real-life entrance tests from their archives. Now, they are back with a new collection of head-scratching, mind-boggling and brain-bending puzzles that will leave you pondering for hours. For those who often found themselves stumped with the first book, there will be even more starter puzzles to get those brains warmed up. Puzzle aficionados needn't worry though, as there will also be an 'Even Harder' section to test everyone to their limits. Not only that, but in celebration of GCHQ's centenary, the puzzles in this new book will sit alongside stories, facts and photos from the organisation's first 100 years at the heart of the nation's security.

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