Put your brain to the test with a brand a new sudoku puzzle here on Stylist every day. Welcome to Stylist’s daily sudoku challenge: the game that promotes critical thinking and problem solving.

They baffle, delight, and frustrate millions of people around the world on a daily basis. But even the most dedicated Sudoku-solver might have never spotted this secret pattern. Mathematicians ...

Play our daily hard sudoku here. Plus, you can let us know what you think of the puzzles by emailing at hey@metro.co.uk. We look forward to hearing from you.

From Monday 4th November, Prima subscribers will be able to unlock all the fun by pressing the puzzle tab on your Prima app ...