Download and Installation

Sudoku is freeware!
However, I would be pleased about feedbacks, error messages and naturally also suggestions for further functionalities. Please, send a mail to This email address is being protected from spambots. You need JavaScript enabled to view it.. Thanks!

The following prerequisites are required:

  • .NET Framework 2.0 (XP, Vista, Windows 7) — Please note: This version will no longer be supported and no longer updated!
  • .NET Framework 4.8 (Windows 8.x, Windows 10, Windows 11 pre-release)

Even if these components are already installed, the automatic launch of the Sudoku-application does not work (the web server seams not to be configured adequate). Therefore download these installation files (XP, Vista, Windows 7) or these installation files (Windows 8.x and Windows 10) and unzip the archive and double-click the setup.exe file and the sudoku.application file respectively if the correct .NET Framework is already installed. Once installed, the application will check for, download, and install updates automatically (internet connection required).

Alternative Download:

Sudoku, Download bei heise

And if you like the Sudoku application, I would be pleased about a little donation.

Please note:

Due to internal variations the current version of Sudoku is not compatible with versions prior to version If you have already installed an older version of Sudoku you must uninstall the older one prior to installing the current one (using the regular "Add or Remove Programs" control panel of your Windows installation). The automatic update will not update older versions of Sudoku to the current one!