Sudoku Puzzle Game - Instructions

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Sudoku, also known as Number Place, is a logic-based placement puzzle. Completing the puzzle requires patience and logical ability. An early variant of the puzzle was published in a French newspaper in 1895 and may have been influenced by the great Swiss mathematician Leonhard Euler, who likely created Latin squares. Modern interest in Sudoku stems from a revival in Japan in 1986, leading to widespread international popularity in 2005

The attraction of the puzzle is that the rules are simple, yet the line of reasoning required to reach the solution may be complex. Sudoku is recommended by some teachers as an exercise in logical reasoning. The level of difficulty of the puzzles can be selected to suit the audience

The name "Sudoku" is the Japanese abbreviation of a longer phrase, "Suuji wa dokushin ni kagiru", meaning "the digits must remain single". It is a trademark of puzzle publisher Nikoli Co. Ltd. in Japan.

How to Play

The aim of the puzzle is to enter a numerical digit from 1 through 9 in each cell of a 9×9 grid made up of 3×3 subgrids (called "regions"), starting with various digits given in some cells (the "givens"); each row, column, and region must contain only one instance of each numeral.