The World Sudoku Championships start on Monday, with competitors from 31 countries set to spend 28 hours solving the toughest ...

There are more than a few techniques to solve a Sudoku puzzle, but per Conceptis ... Ready for more? Try these 17 hard math problems that will make your head spin. The post 10 Sudoku Tips and ...

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.

No words are needed for animals to perform all sorts of problem-solving challenges outplay humans in a strategy game New ...

Welcome to our free impossible sudoku games. Fill in each square with a number, making sure no number repeats in each column or row. Check back every Sunday for a new puzzle or explore ones we ...

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.

Connections: Sports Edition is a New York Times word game about finding common sports threads between words. How to solve the ...

Wordle is released at midnight in your time zone. In order to accommodate all time zones, there will be two Wordle Reviews ...

These days it seems like there’s a for every skin care concern under the sun. The beauty industry has found a way to commercialize every square inch of your skin, from head-to-toe whole-body ...

There is tremendous investor interest in solving the hard problem of decarbonizing cement, as indicated by the magnitude of funding for such ventures. One look at the Keeling Curve, a daily record ...