Online Games - Sudoku Classic

New Sudoku puzzles every day

Choose your Sudoku and play Sudoku Classic online. 15 Sudoku puzzles each day - three levels of difficulty with five different puzzles each level.

Pick a puzzle
(selection bar above puzzle grid):

• Choose a day (in a range of 5 days)
• Select a level by clicking a bullet:

  1st dot

  • Easy

  2nd dot

  • Medium

  3rd dot

  • Expert

• Choose one of five puzzles
• Click on "New Game"

Please note: refreshing this page in your browser (by using the reload button or hitting F5) will discard the current puzzle; instead, the initial puzzle will be re-displayed - that's the current day's first puzzle on level "Medium".

If you rather need to simply restart the current puzzle, just click on "New Game" again.

A brief note about the statistics

The statistics refer to the software that was utilized to check for validity and to solve this puzzle. It's quite possible that there are several ways to solve this puzzle (but there's only one solution). Find your own way!

How to play:

With a click in an blank field, 9 small numbers will be shown. These small numbers can be shown and hidden separately with a simple mouse click, so you can easily remember which numbers you have already excluded and which not. There are 2 colors available for marking (black, green). It's up to you whether to use one or both colors. If you double-click one of these small numbers, that number will appear in this cell. If you're not satisfied with your choice, just double-click this number again to go back to the option of 9 small numbers. After pressing the "Examine" button, incorrectly entered numbers are displayed in red with a tiny question mark. By double-clicking on a red number, the 9 small numbers will re-appear and you're able to make a different choice.

Description and Rules:

Classic Sudoku is a number puzzle based on a 9x9 grid with several predefined numbers in different places. The goal of Sudoku is to enter a digit from 1 to 9 in each grid in such a way that:

1. each row contains each digit exactly once
2. each column contains each digit exactly once
3. each section contains each digit exactly once

A section (aka subgrid resp region) is a 3x3 box.. There are 9 sections in such a traditional Sudoku puzzle.