Sudoku Classic Puzzle

Sudoku, also known Number Place, is the most popular logic based number-placement puzzle in the world.To solve the game you must complete the puzzle by filling in all the numbers (from 1 to 9) so that each digit does not repeat in the same row, column or block.
This app will become your favorite Sudoku game!
Sudoku Features:
1. Super smooth interfaces like on paper/newspaper
2. Unlimited Undo and Eraser to help you get rid of mistakes
3. Highlighting of a row, column and sub-grid related to the selected cell to help you discover patterns
4. Automatically saves your game when you get a phone call, switch applications, or lock the phone
5. Day mode and Night mode
6. More than 20,000 well posed puzzles
7. 4 perfectly balanced difficulty levels
8. Complete Daily Challenges to collect trophies
9. Turn on/off Notes (Pencil) mode as you like
10. Highlight Duplicates to avoid identical numbers in a row, column and sub-grid
11. Intelligent Hints can guide you through the numbers whenever you get stuck
12. Fresh Input modes: Cell first or Digit first
If you enjoy Sudoku, this is the app for you!