Sudoku (NZZ)
The NZZ's free daily sudoku, from easy to very hard.
Every day: A new sudoku every day on the NZZ games page, the same for every reader, at several difficulty levels from easy to very hard. New puzzle: Once a day.

The Neue Zürcher Zeitung's online Sudoku brings a new 9x9 puzzle every day, free and without registration, at several levels of difficulty. Fill the grid so every row, column and box holds the digits 1 to 9 once.
About Sudoku (NZZ)
The NZZ games page, run for the Zurich paper by kr3m, offers a free sudoku that is renewed every day, with separate pages for easy, hard and very hard grids. There is no sign-up and no limit on how often you play.
The rules are classic: some digits are given, and you fill the rest so that each row, each column and each 3x3 box contains 1 to 9 exactly once. Digits are chosen from a small wheel of numbers that opens around the selected square, with a bin to erase an entry, and the levels run from gentle grids for beginners to long, hard ones.
The same page sits beside the NZZ's daily crossword and other games such as SudoKen and Street.
It suits German-speaking readers who want a free daily sudoku from a newspaper they trust.
How to play Sudoku (NZZ)
- Open the NZZ Sudoku page and choose a difficulty.
- Select an empty square and enter a digit from 1 to 9.
- Keep every row, column and 3x3 box free of repeated digits.
- Erase an entry with the bin if you change your mind.
- Fill the whole grid to finish.
Screenshots

Tips
- Scan for digits that appear many times; their last places are often forced.
- Use pencil notes on the hard levels instead of guessing.
Questions
Is the NZZ sudoku free?
Yes, free and without registration, with ads on the page.
How often is there a new sudoku?
Every day, at several levels of difficulty.
Games like Sudoku (NZZ)

Sudoku (Tages-Anzeiger)
Another Swiss paper's daily sudoku, from the Tages-Anzeiger

Kreuzworträtsel (NZZ)
The NZZ's daily German crossword, from the same games page

Daily Sudoku
One classic 9x9 sudoku a day

Daily Sudoku
An ad-free daily sudoku

Los Angeles Times Sudoku
A fresh sudoku every day at five levels, from a 6x6 mini to expert.

Sudoku (Daily Mail)
The Daily Mail's sudoku of the day, at seven levels of difficulty.

Sudoku (Gridgames)
Classic 9x9 sudoku on Gridgames, with a new numbered grid each day at four difficulty levels.

Sudoku (La Nación)
La Nación's daily sudoku, with a grid for each difficulty level.