Sudoku classic play online

42,000 games in 6 levels.
A lot of geometric beautiful designed puzzles.
In this app, There are the relatively easy Sudoku puzzles that everyone can enjoy it.
You can enjoy it anytime anywhere.
Of course, Sudoku classic is free to play !

Introduction
Sudoku is famous for fantastic brain game.
Sudoku classic is a fun and entertaining apps to help you develop and maintain brain abilities such as memory, concentration and reasoning.
Thats ideal for brain training as well as for killing time.

About Function
Auto save
Its a function to save a data when you leave a puzzle unfinished. Continue playing anytime.
Undo, Redo
It's a function to retrace your steps.
Pencil-mark
Its a function to write down small numbers in the cell.
Check Mistake
Its a function to check your answer.
Marker
Its a function to find a hidden blanks.
Technique Hint
Its a function to give you a hint when you have no idea.