Robin Jarman, 76, is Sudoku Guy. With roughly 3,000 visits to his YouTube videos every day and 9,700 subscribers watching his more than 80 videos, Jarman is fast becoming the go-to-guy for ...

Robin Jarman, known as the Sudoku Guy on YouTube, has amassed more than 85,000 followers on his channel which he has been updating regularly for the last seven years. With more than 140 videos ...

But even the most dedicated Sudoku-solver might have never spotted this secret pattern. Mathematicians have uncovered a powerful pattern known as the 'Phistomefel Ring' - and it's hidden in every ...

Trump, allies signal they will try to call the shots for Republican-led Senate ...