Can you crack it gchq clues

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FB house promo. David McBryan, one of the final three, said the possibility of winning was "driving him along" as he attempted to outsmart the GCHQ cryptographers.

The year-old, originally from Dublin, but now living in Edinburgh said: "I thought I had solved it, but a news report came out a few days ago saying nobody had It's enjoyable but it's tough. Mr McBryan, a former Fifteen to One game show winner who now writes questions for the show, studied maths and artificial intelligence at university. He said "logical rigorous thinking" was needed to be a good puzzle-solver but that "most of all it's got to be just the experience of doing puzzles - the more you do the better you'll get at it".

The compendium of word and number puzzles took a team of eight GCHQ cryptographers two months to compile, and included a mix of past and fresh challenges - with plenty of hidden material. Get ahead of the day with the morning headlines at 7. Enter email address This field is required Sign Up. The first stage was a grid-shading exercise which, when completed, revealed a scannable QR bar code to direct people to the next part.

The quiz from GCHQ is below, and you can also take it here. The difficult puzzles are based on the unique design elements of the new plastic banknote, such as the technical drawings for the British Bombe - the machine designed to break Enigma messages. Once cracked and converted into decimal figures, the numbers reveal a significant date in modern cyber espionage.

Turing was one of the Bletchley Park boffins who cracked the Nazis' Enigma machine, which helped Britain win the war. But the mega-brain mathematician, played by Benedict Cumberbatch in The Imitation Game, was persecuted for being gay. Start your Independent Premium subscription today. Already subscribed? Log in. Forgotten your password?