Trivia
Articles in the “Trivia” category.
Trivia
The hardest puzzles in history and the minds that solved them
The world's hardest sudoku, Einstein's riddle and the Tower of Hanoi. A tour of the most famous logic challenges and the kind of reasoning it takes to beat them.
August 30, 2026
Trivia
The history of Sudoku: how a math puzzle conquered the world
From Euler's Latin square to a global craze. Discover who really invented sudoku, why it's called that, and how it went from a US magazine to the worldwide frenzy of 2005.
August 25, 2026