The GCHQ Puzzle Book II - GCHQ

Give the joy of a challenge this Christmas with fiendishly difficult puzzles'Fiendishly tricky' Daily MailWith 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, The GCHQ... Zobrazit více