Classic Sudoku is a very popular puzzle game. Constantly solving Sudoku puzzles can fully exercise your brain and gain a sense of accomplishment. There are 1000 + Digital puzzles in the game to challenge, complete the challenge, and constantly unlock higher difficulty. This game will only take up a small amount of storage space and can be played offline anytime and anywhere.

Starting with basic difficulty, you can choose a variety of difficulty levels. Can be suitable for novice and master players. Free tips can help you out. There are also notes, automatic check function, you can choose whether to use this tool to help you reduce the difficulty of the game.

How To Play:
- Fill in each grid with the number of pairs
- You can add notes to a grid of uncertain numbers
- Use tips when you are in trouble
- Use "Erase" delete the wrong number
- You can undo your actions indefinitely

Features:
* Classic puzzle game with elaborate design.
* Simple interface, a variety of color themes can be selected.
* Many difficulties from easy to expert.
* Statistics will record your game achievements.
* There is no time limit
* It can be played offline and free of charge.

Are you good at number games or puzzle games? Challenge the "expert" level and set a new record! Download free classic Sudoku games now!