Table of Contents

Contents
Foreword 5
Introduction 7
Level 1
Decoded Dilemmas 11
Level 2
Meta Mysteries 37
Level 3
Cryptic Conundrums 61
Level 4
Perplexing Puzzles 87
Level 5
Enciphered Enigmas 115
Hints 137
Solutions 193
Authors 303

Promotional Information

Published in association with The Turing Trust, this incredible collection of codebreakers allows you to test your own skills - if you can solve every puzzle in the book you might once have been recruited to join the ranks of Alan Turing's codebreakers! It contains a breath-taking range of different types of puzzles, and so presents a wonderfully entertaining challenge for any puzzle lover.

About the Author

Dr Gareth Moore is the author of a wide range of brain-training and puzzle books for both children and adults. He is the creator of online brain training site www.BrainedUp.com and runs the daily puzzle website www.PuzzleMix.com. He gained his Ph.D from Cambridge University in the field of Machine Learning, and has contributed to various advanced projects for leading technology companies. Dermot Turing, the nephew of Alan Turing, graduated from King's College Cambridge and New College Oxford. He spent his career in the legal profession, most recently as a partner of Clifford Chance. Since 2014 he has moved into a more varied range of activities, including an active role as a trustee of Bletchley Park.