For anyone who has ever struggled while attempting to solve a Sudoku puzzle, mathematicians are coming to the rescue. They can not only explain why some Sudoku puzzles are harder than others, they ...

In the mood to challenge your brain? Here are some printable sudoku puzzles that are sure to make you think hard. Sudoku puzzles aren’t easy, but with a little practice and some helpful sudoku tips, ...

Sudoku fans, it’s time to really crunch some numbers. Give your mind the ultimate test on the most difficult numbers puzzle each day — and challenge yourself to make the impossible possible.

Solve the grid in this hard Sudoku puzzle! The objective of Sudoku is to fill each row, column and sub-grid with exactly one of each number from 1-9. A conflict arises if you repeat any entry in the ...

Solve the grid in this hard Sudoku puzzle! The objective of Sudoku is to fill each row, column and sub-grid with exactly one of each number from 1-9. A conflict arises if you repeat any entry in the ...

A free daily email with the biggest news stories of the day – and the best features from TheWeek.com Contact me with news and offers from other Future brands Receive email from us on behalf of our ...

At a time when there's not very many live sports to watch, we've all had to look for alternate forms of entertainment. You might be plugging away at your Netflix queue, or becoming a new NASCAR fan, ...

Every weekday morning we release brand new Sudoku puzzles with easy, medium and hard versions. Enjoy solving today's puzzles and remember to come back for a new challenge! Check out our ...

Some are easy to figure out, like the clues in a newspaper’s Monday crossword, a beginner’s Sudoku grid or cryptogram. Others are more difficult. But one puzzle that has proved impossible to solve, ...

A free daily email with the biggest news stories of the day – and the best features from TheWeek.com Contact me with news and offers from other Future brands Receive email from us on behalf of our ...