Fill the board with notes
Solve the sudoku
Reset the sudoku
Delete all notes
Play without time
Classic Sudoku
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About Sudoku Game
Sudoku has its deep roots in ancient number puzzles and in the mathematical concept of Latin Squares.It is a Japanese word: Su (meaning 'number') and Doku (meaning 'single') however Sudoku originated in Switzerland in the 18th Century and was introduced to Japan via America.
Sudoku is based on the logical placement of numbers. As an online game of logic, Sudoku doesn’t require any calculation nor special math skills; all that is needed are brains and concentration.
Playing Sudoku is an interesting experience and once you play, you feel compelled to play again, or to solve this hard puzzle you got stuck on. It's challenging and yet solvable. If you play Sudoku daily, you will soon start to see improvements in your concentration and overall brain power.
How to play Sudoku
The goal of a Sudoku puzzle game is to fill a 9x9 grid with numbers so that each row, column and 3x3 section contain all digits between 1 and 9.
At the beginning of the game, the 9×9 grid will have some of the squares filled in. Your job is to use logic to fill in the missing digits and complete the grid.
The basic rule is that each digit can appear only once in each row, column, and small square. Complete all the numbers to win sudoku.
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