Published in association with the Turing Trust, this challenging collection of code puzzles will stretch, puzzle and entertain you for hours. It offers the puzzle enthusiast a tough, but enjoyable, challenge, with a variety of codebreaking puzzles to crack.

Alan Turing is often called the father of modern computing. During World War II, he worked at Bletchley Park, where top secret work was carried out to decipher the military codes used by Germany and its allies. Turing played a pivotal role in cracking intercepted coded messages that enabled the Allies to defeat the Nazis in many crucial engagements, and his work was vital in helping the Allies win the war.

Sales of this book support the work of The Turing Trust, the charity set up by Alan's family in his memory.

ABOUT THE SERIES: The Turing Tests are a series of innovative puzzle books, inspired by the ingenious problem-solving skills of World War II codebreaker Alan Turing. Each title includes a variety of compelling puzzle types designed to challenge and stretch your mind. Do you have what it takes to solve them all?