Sudoku is one of the most popular puzzle games of all time. The goal of Sudoku is to fill a 9x9 grid with numbers so that each row, column and 3x3 section contains all the numbers from 1 to 9. As a logic puzzle, Sudoku is also a great brain game. If you play Sudoku daily, you will soon begin to notice improvements in your concentration and overall brain power. Start the game right now. In no time, free Sudoku puzzles will become your favorite online game.

The goal of Sudoku is to fill in a 9×9 grid with digits so that each column, row, and 3×3 section contain the numbers between 1 to 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. Don’t forget, a move is incorrect if:

- Any row contains more than one of the same number from 1 to 9
- Any column contains more than one of the same number from 1 to 9
- Any 3×3 grid contains more than one of the same number from 1 to 9

Sudoku is a fun puzzle game once you get the hang of it. At the same time, learning to play Sudoku can be a bit intimidating for beginners. So, if you are a complete beginner, here are some Sudoku tips that you can use to improve your Sudoku skills.

Origin

In the XVIII century, Leonhard Euler invented the game "Carré latin" ("Latin square"). Based on this game, special numerical puzzles were invented in North America in the 1970s. So, in the USA Sudoku appeared for the first time in 1979 in the magazine "Dell Puzzle Magazine". Then it was called "Number Place". Sudoku gained real popularity in the 1980s and 1990s, when the Japanese magazine "Nikoli" began to regularly publish this puzzle on its pages (since 1986). Today sudoku is a mandatory component of many newspapers. Among them there are many publications with multi-million copies, for example, the German newspaper "Die Zeit", the Austrian "Der Standard".