Open source Sudoku game for Windows Mobile devices with installed MS.NET compact framework. Play 90 puzzles in 3 difficulty levels by touching device display with a finger. A number or a numeric note can be filled in in all free boxes on the board. Every game also contains information about the elapsed time and the date of the last play. The application can be downloaded and used entirely free of any fees.

The game is freely inspired by opensudoku-andriod. Numbers can be filled in by clicking on the board and selecting the required number or you can choose a number and then place it on the board ('Popup' and 'Single number' input mode). Users can change the application skin (colors, elements size).

Display resolution independent - successfully tested on Omnia and HTC TyTN 2 (touchscreen required).

System requirements:
- Windows mobile device with touchscreen and installed Microsoft .NET Compact Framework.

Installation:
- Download the game.
- Decompress (unzip) it to your computer (You can change application settings in unzipped config.xml file).
- Copy all the files to your mobile device.
- Run ClosedSudoku.exe from your device.