Mathematicians have uncovered a powerful pattern known as the 'Phistomefel Ring' - and it's hidden in every Sudoku ever made. Best of all, puzzle experts say the pattern could help you solve the ...

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 ...

Your pencil won't help you find the missing number in this puzzle. Can all Sudoku puzzles be solved without guessing?