Mathematicians have uncovered a powerful pattern known as the 'Phistomefel Ring' - and it's hidden in every Sudoku ever made.

Sitting down before a fresh Sudoku grid and playing Sudoku requires logic, not guesswork, and a substantial knowledge of ...

Some people like crossword puzzles, some are serious sudoku ninjas, but [Andrea Favero] likes to keep himself sharp, by learning coding and solving control problems, and that is something we can ...

Doing crossword puzzles and Sudoku does not appear to protect against ... It found engagement in problem solving did not protect an individual from decline. However, engaging in intellectually ...