All four cells have the same two candidates left (in real Sudoku, not all cells have to hold all of the UR candidates)." ...

SEE ALSO: Mahjong, Sudoku, free crossword, and more ... but it actually isn't any more difficult than when it first began.

Play our daily hard sudoku here. Plus, you can let us know what you think of the puzzles by emailing at [email protected]. We look forward to hearing from you.

The system can also process data, as demonstrated by solving sudoku puzzles. You have more data storage capacity in your little finger than the best electronic hard drive. And we mean that ...

Can you get a hat-trick?

39D. It’s funny how words on a page from childhood can settle in one’s mind for decades. The [Plant also known as coffeeweed] ...

Christina Iverson presents a clean and cozy themeless puzzle.

For Bazaar's "Better With Age" series, esthetician Joanna Czech shares a few pearls of life and beauty wisdom she's learned ...

Known as the “Godfather of Sudoku,” Kaji created the puzzle to be easy for children and others who didn’t want to think too hard. Its name is made up of the Japanese characters for “number ...

And now, as if to further mock our mere organic forms, scientists say they've created a computer made out of DNA that can play the board game — along with sudoku puzzles, for good measure.

Google co-founder Sergey Brin said the company's engineers aren't utilizing AI to its full extent when coding.

Play our daily hard sudoku here. Plus, you can let us know what you think of the puzzles by emailing at [email protected]. We look forward to hearing from you.