Tag: puzzles
Declassified Cold War code-breaking manual has lessons for solving ‘impossible’ puzzles
Picture: NSA
The United States National Security Agency — the country’s premier signals intelligence organisation — recently declassified a Cold War-era document about code-breaking.
The 1977 book, written...
How to solve a Rubik’s cube in five seconds
Unscrambling . . . how?
In 2015, 14-year-old Lucas Etter set a new world record for solving the classic Rubik’s cube in Clarksville, Maryland, in...
Your brain approaches tricky tasks in a surprisingly simple way
It gets easier with practice. Duntrune Studios/Shutterstock
Have you ever sat down to complete your morning crossword or Sudoku and wondered about what’s happening...