Upper elementary and middle school kids can try their hand at this difficult nonogram puzzle that features a triple-number ...

The game includes 1,500 Sudoku puzzles across five difficulties. Additionally, the game offers stat tracking, a fastest times counter, and a completion percentage to see your improvements over time.

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.

This page will update every weekday and Saturday at midnight so make sure you bookmark the link to play.

the scanning technique is a swift and generally efficient method of solving easy Sudoku puzzles from start to finish and can ...

You can now play an even larger range of puzzles on our site, every weekday and now also every Saturday. Check out our brand new puzzles below, from Hangman to Add Up and even a Jigsaw.

The difficulty level of a Sudoku puzzle can be easy, medium, hard, or very hard. The easier the puzzle, the more the numbers pre-filled in the grids. The harder the puzzle, the fewer numbers pre ...