JSudoku Free download

Brothersoft Editor: Generates puzzles (with unique or multiple solutions) of different difficulty levels and user can Create his own puzzles too.

Hints (with possible candidates and showing deducible cells) can be activated if the user wants to.

There's also the option to analyse a puzzle an give the several solutions it may have.
Load and Save of boards is supported.
Configuration of board colors is also supported.

Very intuitive and easy to use GUI.

Requirements: .NET Framework 2.0 or higher