Your screen is to small to play this free board game.
The rules to Sudoku are very simple: fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. There are 75 levels, see if you can complete all of them. There is a timer, but no time limit so you can play at your own leisure or put yoursel under pressure and challenge your friends. Have Fun!
Do you find it entertaining to solve Sudoku puzzles, and also enjoy to play free online games? If you are in the same mood as us today, then you probably would like to play the free Sudoku Original game online.
Use your mouse. Fill in the 9x9 grid and ensure every column, row and box contains numbers from 1 to 9. Use the Hint by first selecting a square you need help on. Use it wisely, you only get up to 3 hints per level, and there are 75 levels. You can also use keyboard to select squares using the arrow keys and then type in the digit you want to place. 0 will set the square to empty. Or you can simply fill in the grid by selecting squares with the mouse and pick digits from the small grid that pops up.
The original game did not come from Japan. Sudoku grids have a long, international and not always certain history, but one thing is definite: they are not Japanese. The puzzles were in fact invented in 1783 by the Swiss math genius, Leonhard Euler, who dominated 18th-century mathematics and whose collected works fill 75 volumes. Euler was born in Basel in 1707, studied at the city's university and left aged 19 to take up his first professorship in St Petersburg. The mathematician died in 1783, the year he devised his magic squares, which some claim that these 81-square grids were the proto sudoku puzzles. Euler's contribution to the invention of the original Sudoku is hotly disputed in some circles.
Note: In order to play some of our games, you need to activate Adobe Flash Player. Use our Flash Game Guide to figure out how.