Sudoku free Activity

Buon gioco con attività gratuita di Sudoku

Sudoku free Activity is a classic game that's still fun for anyone to play.

Sudoku free Activity can be played on your mobile anytime and anywhere.

Explanation of Sudoku:

Sudoku (sudoku, digit-single) (/ su?'do?ku? /, / -'d?k- /, / s?- /, originally called Number Place) is a logic-based, combinatorial number-placement puzzle. In classic sudoku, the objective is to fill a 9 × 9 grid with digits so that each column, each row, and each of the nine 3 × 3 subgrids that compose the grid (also called "boxes", "blocks", or " regions ") contain all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a single solution.

Completed games are always an example of a Latin square, including an additional constraint on the contents of individual regions. For example, the same single integer may not appear twice in the same row, column, or any of the nine 3 × 3 subregions of the 9 × 9 playing board.

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". It first appeared in a U.S. newspaper, and then The Times (London), in 2004, thanks for the efforts of Wayne Gould, who devised a computer program to rapidly produce unique puzzles.

Download the free Sudoku Activity and solve the numbers in the game.