Sudoku puzzle solver is now equipped with few additions in UI and code to make it easier for users to solve/make puzzles. in new UI there is an option to check in menu bar Settings –> Indicate constraints . when checked and user hovers mouse over a cell program highlights the row , column and box related to the cell. further more tooltip pops up and shows possible values which can be entered according to sudoku game rules for the particular cell.
If you have Java Run time installed on your system , download and extract the Archive and run Sudoku.jar by double clicking on it or using command line .
java –jar Sudoku.jar.