Sudoku - Classic Number Puzzle

Sudoku is a puzzle game of skill, rhythm and hand speed. Whether you'd like to relax or keep the mind active, you can pleasantly pass the time with this classic Sudoku free puzzle game! Classic 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 puzzle app, you can not only enjoy sudoku games anytime anywhere, but also learn Sudoku techniques from it. Key Features ●More than 5000 classic well-formed sudoku puzzles for free ●4 difficulty levels - easy Sudoku, medium Sudoku, hard Sudoku and expert Sudoku! Perfect for Sudoku beginners and advanced players! ●Note Mode - You can take notes to find the numbers easily as on paper. Each time you fill in a cell, notes are automatically updated! ●Highlight Duplicates - to avoid repeating numbers in a row, column and block. ●Made a mistake? Use unlimited Undos or use Eraser. ●Intelligent Hints - When you are stuck, hints button can guide you. ●Themes - Choose the theme that makes it easier for your eyes. ●Auto-save. If you leave sudoku game unfinished, it will be saved. You can continue playing anytime. Brain-burning puzzle game, brain storming number battle, from rookie to number cube master! The difficulty of the puzzles increases with each level, and the elaborate levels are laid out in such a way that you can improve your logical thinking skills while having a lot of fun. The user-friendly operation and simple interface will give you the unique charm of the game! What are you waiting for? Come and join the challenge! Have fun！！