Test yourself with the official GCHQ Puzzle Book, the perfect gift for anyone who loves a good head-scratcher

Over the years, their codebreakers have helped keep our country safe, from the Bletchley Park breakthroughs of WWII to the modern-day threat of cyber attack. So it comes as no surprise that, even in their time off, the staff at GCHQ love a good puzzle.

Whether they're recruiting new staff or challenging each other to the toughest Christmas quizzes and treasure hunts imaginable, puzzles are at the heart of what GCHQ does. Now they're opening up their archives of decades' worth of codes, puzzles and challenges for everyone to try.

In this book you will find:

- Tips on how to get into the mindset of a codebreaker

- Puzzles ranging in difficulty from easy to brain-bending

- A competition section where we search for Britain's smartest puzzler

With hundreds of stimulating puzzles, The GCHQ Puzzle Book is the perfect companion and will keep you occupied as you attempt to beat the smartest brains in Britain.

GOOD LUCK!

'Fiendish . . . as frustrating, divisive and annoying as it is deeply fulfilling' Guardian

'Ideal for the crossword enthusiast' Daily Telegraph

Looking for more ways to test yourself? The GCHQ Puzzle Book 2, a new collection of head-scratching, mind-boggling and brain-bending puzzles is out now!

A unique book of puzzles from British intelligence organisation GCHQ.

About the Author
GCHQ (Government Communications Headquarters) is a signals intelligence and cyber security organisation whose mission is to keep Britain safe from terror attacks and cybercrime.

Reviews
A fiendish work, as frustrating, divisive and annoying as it is deeply fulfilling: the true spirit of Christmas * Guardian *
Surely the trickiest puzzle book in years. Crack these fiendish problems and Trivial Pursuit should be a doddle * Daily Telegraph *
Ideal for the crossword enthusiast * Daily Telegraph *
An explosion of a puzzle collection, too, with hundreds of questions and loads of peripheral material, including captioned photographs and history of twentieth-century British encryption, featuring the work of Alan Turing * The Times Literary Supplement *
This isn't your grandfather's Sudoku book. Rather, it's a puzzle compendium put together by the organisation that made the Bletchley Park breakthroughs - quizzes, bewilderments and brainteasers to challenge even the sharpest of minds * The Gentleman's Journal *
WINNER OF STOCKING FILLER OF THE YEAR AWARD * THE GUARDIAN *



Book Information
ISBN 9780718185541
Author GCHQ
Format Paperback
Page Count 368
Imprint Michael Joseph Ltd
Publisher Penguin Books Ltd
Weight(grams) 537g
Dimensions(mm) 234mm * 153mm * 28mm