Sudoku Excellence 101

This app has the following:
- A number of puzzles from Easy to Very Hard (Total 1327 Sudoku Puzzles)
- Enter number to load sudoku puzzle or add own puzzle
- Works as sudoku workbench where users can add own sudoku puzzles from external sources and start solving it
- Enter candidates for empty boxes in puzzle to help solve sudoku puzzle
- Whenever a solution to particular cell is entered corresponding candidates in empty cells are removed wherever applicable
- Validation of answers entered is possible in single click
- Hint functionality gives users choice to see a step by step walkthrough of solution
- Validation and hint functionality can be used unlimited number of times which helps in learning how to solve sudoku puzzles
- Undo Last action to correct a series of errors

Key Features
- Preloaded puzzles from easy to very hard for fun sudoku solving brain teaser exercise
- Unlimited hint functionality helps users learn more techniques on the go while solving puzzles
- Solve your own Sudoku Puzzles by adding the givens to an empty grid.
- Get solution to own sudoku puzzle by using the hint functionality
- Allows users to make errors as it allows duplicates in houses. This helps users become better Sudoku players
- Highlight a single number selectively

Altogether this app serves as a Do-it-Yourself (DIY) Sudoku Learning App which encourages users to learn as you go while solving Sudoku Puzzles