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flag GCHQ releases annual Christmas puzzle challenge, adding complexity with three hidden elements.

flag The UK's GCHQ has released its annual Christmas challenge, a series of seven puzzles designed to test codebreaking, math, and analytical skills. flag This year includes three extra hidden elements for added difficulty. flag Available for download from the GCHQ website, the challenge aims to inspire young people to explore STEM subjects and consider careers in cybersecurity and intelligence. flag Last year’s challenge was downloaded over 138,000 times.

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