French newspapers featured variations of the Sudoku puzzles in the 19th century, and the puzzle has appeared since 1979 in puzzle books under the name Number Place.However, the modern Sudoku only began to gain widespread popularity in 1986 when it was published by the Japanese puzzle company Nikoli under the name Sudoku, meaning "single number".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. Also known as .With our Sudoku puzzle app, you can not only enjoy sudoku games anytime anywhere, but also learn Sudoku techniques from it.Key Features:- Sudoku puzzles come in 4 difficulty levels - easy Sudoku, medium Sudoku, hard Sudoku and expert Sudoku! Perfect for Sudoku beginners and advanced players!- Daily Challenge Complete Daily Challenges to collect wonderful trophies.- Hint system help you to learn how to solve the sudoku puzzle- Career statistics to keep track of your game progress- Turn on Notes to make notes as on paper. Each time you fill in a cell on sudoku puzzle grid, notes are automatically updated!If you encounter difficulties, dont give up, try the assistance.Task focus and concentration enhance: Wonderful gameplay to train your brain!A suitable game for the whole family to enjoy together!key words:sudoku,sudokuki,sudoku online,websudoku,nyt sudoku,16x16,sudoku 247,sudoku hard,killer sudoku,sudoku,puzzles,sudoku medium,free sudoku,sudoku game,new york times sudoku,daily sudoku,sudoku online free,sudoku easy,sudoku printable,web sudoku hard,usa today sudoku,la times sudoku,washington post sudoku,aarp sudoku,sudoku 247 easy,kingdom sudoku,wapo sudoku,247sudoku easy,aarp games sudoku,sudoku game hard,play easy sudoku,247 games sudoku,sudoku game medium,washingtonpost sudoku,sudoku kin,sudoku247 easy,sudoku game easy,killer sudoku game,sudoku kingdom sudoku,usa today games sudoku,web sudoku online free,sudoku game how to play,sudoku24 7 easy,free sudoku website,sudoku games printable,killer sudoku gamesNow come to play this Number game, Sudoku!Prove you are a tile master at Sudoku!Hope you have a wonderful time playing!Enjoy this free puzzle board game!