Sudoku! - Puzzle Math

What is Sudoku?

Sudoku originally called Number Place is a logic-based,combinatorial number-placement puzzle.
In classic sudoku, the objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 subgrids that compose the grid (also called "boxes", "blocks", or "regions") contain all of the digits from 1 to 9.

How to Play Sudoku:
Fill in the remaining boxes as long as:
* Horizontal rows:
Must have enough numbers from 1 to 9, do not have the same number and do not need the correct order.
* Vertical lines:
Make sure to have enough numbers from 1-9, do not have the same number, do not need to be in order.
* Each 3 x 3 area:
Must have numbers 1-9 and do not have the same number in the same 3 x3 area.

About our Sudoku Mobile:
Our Sudoku app brings the worldwide famous Sudoku math problem to your phone. You can play it every day to improve your logical thinking ability, intellectual training.

* Modes:
Easy, medium, hard, expert.
* Internet Connection
No need internet connection to play our game. This is an offline game.
* Maps:
Unlimited maps to play
* Ads:
We have only one Ads banner at the bottom of screen. You also can watch a full screen ads to gain special support items.
* Support Items:
Note, rule out, undo, hint, erase
* Graphics:
Simple graphics with black and white color help you easy to see
* Sounds:
Cool Sound Effects

Please help us to improve this game by leaving a feedback.
Thanks.

Reference resources :
Sound:
https://freesound.org/people/tim.kahn/sounds/43448/
https://freesound.org/people/NenadSimic/sounds/171697/
https://freesound.org/people/Mellau/sounds/506053/
https://freesound.org/people/Autistic%20Lucario/sounds/142608/
https://freesound.org/people/grunz/sounds/109662/

Privacy policy
This is a simple game so:
* We don't collect any of your personal informations
* We don't track you. We don't profile you period.