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 ...

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

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

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.

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.

Beyond what the Kindle Scribe is known for and advertised as it packs in these great but lesser-known features that users ...

We’re so accustomed to researching, planning and curating every millisecond of our lives that we rarely stop to consider the ...

Hard coding may get the job done, but it can be thought of as "brute force" programming. Very often, an application is hard coded first and generalized later. The reason is simple. It is always ...

I've tried a bunch of electric toothbrushes and while most are sufficient, one blows the competition out of the water — get ...

An Italian court has dealt a major blow to Giorgia Meloni’s multi-million euro plan to send migrants to an offshore camp in ...

A doctor is being sued for allegedly faking medical records to give sex-change drugs to teenagers. May Lau, a paediatrician ...

Cue the grousing: This was computer science, not physics or chemistry! Indeed, of the five laureates on Tuesday and Wednesday ...