Sudoku Hint Free

Sudoku Hint Free is a free application (No Ad-ware or internet connection of any kind):It has these features:- Provides hints for solving Sudoku puzzles, including number hints and color hints- Allows entry in multiple colors for following various solution paths- Allows a user to enter puzzles from other sources- Generates new random games with 4 levels of difficulty- Solves **any** solvable puzzle in a fraction of a second using the most advanced "dancing links" algorithm- Provides built-in help and 10 sample gamesThe Free version only allows one puzzle at a time.The Plus version: - Allows the user to name puzzles and store and retrieve them - Adds a Cheat option to the menu for revealing a single cell of the solution - Adds a Validate option to the menu for checking to see if the entries made so far match the solution