In 1990, artist Jim Sanborn installed a cryptographic puzzle on the grounds of Central Intelligence Agency in Langely, Virginia. While cryptoanalysts have solved the first three sections of the puzzle ...
Brits are being challenged to crack cryptic clues, hidden symbols and layered puzzles in a nationwide brain-teaser 🧠 ...
Here’s what you’ll learn when you read this story: In 1990, artist Jim Sanborn installed a cryptographic puzzle on the grounds of Central Intelligence Agency in Langely, Virginia. While cryptoanalysts ...