Enjoy! Sudoku is a cross-number crossword that will definitely challenge your brain as well as your patience. (Level of Difficulty on a scale of 1-5: Monday and Tuesday, 1; Wednesday and Saturday ...

Microsoft Excel is a ridiculously powerful spreadsheet program, and you can do more than just track data in it. It has a ton ...

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 ...

Good Sudoku uses a dedicated onscreen number pad for filling out puzzles, a note-taking system, and hints to help you learn increasingly sophisticated techniques for solving puzzles. By default, ...

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

That is a ridiculously large number. Most numbers you're likely to see in your day-to-day life don't need seven commas to be written out. Here's how you get to that astronomical sum. A Sudoku ...

Microsoft will officially end support for its most popular operating system in a little over a year from now. Here's what you ...

With the addition of more constraints in this language, the potential number of solutions shrinks in the same way that there are fewer possible numbers you can put into a Sudoku square as more of ...

Playing Sudoku will help you distract your mind from the stress, as you would be concentrating on solving the puzzle.

Sudoku’s roots aren’t Japanese - Despite its name, which comes from the Japanese words “Su” (number) and “Doku” (single), the origins of Sudoku are actually Eur ...

A computer made from DNA that can solve basic chess and sudoku puzzles could one day ... DNA devices have a number of potential advantages, such as being able to safely store vast amounts of ...