GCHQ Christmas card sets annual code-cracking challenge

Fans of codebreaking, maths and brainteasers can now try their hand at the latest cryptic Christmas challenge set by GCHQ, ...
LBC

Can you solve GCHQ’s Christmas 2025 puzzle?

If you fancy yourself as a budding sleuth, hacker or code-breaker, GCHQ has released its annual Christmas challenge and is ...
Kotaku

Codebreaker Puzzle 1000! ENG & JAN

All the Latest Game Footage and Images from Codebreaker Puzzle 1000! ENG & JAN Fill in specified characters to same number blanks to complete all words in puzzle. Content 2000 questions in 4 level ...
Inverse

This newly declassified Cold War book could solve the hardest puzzle in the world

The United States National Security Agency — the country’s premier signals intelligence organization — recently declassified a Cold War-era document about code-breaking. The first two parts of the ...
The Anderson Independent-Mail

Pulling a fast one on a 97-year-old WWII code breaker, who still has puzzles left to solve

Editor's note: This story was updated on Sept. 7, 2021 to reflect Jeuel Bannister Esmacher's alma mater. Jeuel Bannister Esmacher, 97, kept for decades the secret of her role in America’s World War II ...