Sudoku is a logic-based number puzzle game and the goal is to place 1 to 9 digit numbers into each grid cell so that each number can only appear once in each row, each column and each mini-grid. With our Sudoku 2021 , you can not only enjoy sudoku games anytime anywhere, but also learn Sudoku techniques from it.

FEATURES:

* four different difficulties
* thousands of puzzles for each difficulty
* auto-save your progress for each puzzle
* unlimited undo/redo
* auto-fill drafts
* hint system for beginners
* color input system for experts
* clean interface and smooth controls
* phones and tablets support

Is Sudoku your passion? Are you striving to achieve the expert level? Or maybe you are just looking for a good game for beginners and want to try it by yourself? Regardless of your level, this app is exactly for you.