Enter the given cells of a Sudoku puzzle into the grid and click the SOLVE button.
PLEASE READ THE HELP. It does contain some useful information.
WARNING! In most cases the app will only take a second or two to find a solution for a Sudoku puzzle, but for very difficult puzzles, it can take a few minutes. Please be patient. The app will return a result.
Added support for Android 7.0 (Nougat).
Made a few changes to the layout XML which should make the app a little faster.