Sudoku+ - World Champion Puzzle Challenge

Sudoku is a famous game for along time all over the world, it's easy to learn highly addictive language-independent logic puzzles for both adult and child.
This game includes combination of numbers and range from very easy to extremely difficult taking anything from some minutes to several hours to solve this game. It also come in many variants, each variant have differently and each variant offering a unique twist of brain challenging logic. You must try many ways to control the number. That will help your brain open more and more.
Features:
- Good design: Cute background and nice sound
- 3 difficult levels: EASY - MEDIUM - HARD
- Pencil mark
- Highlight selected row or column
- Auto check error
- Unlimited undo
- The hints will be available if you get any difficulties
Take a note:
In the same column or the same row, it must have all of numbers from 1 to 9. Each number will appear only once time. That's mean: two numbers in the same block of a Sudoku puzzle can not be same.
Can you get all the achievements?
And they’re TOTALLY FREE.