Sudoku Puzzles: An Interesting Brain Teaser

Sudoku Puzzles: An Interesting Brain Teaser

Solving Sudoku Puzzles are brain teasers that have also been called wordless crossword puzzles. Sudoku Puzzles are often solved through creativeness and have been making a great impact all across the world.

Also known as Number Place, Sudoku puzzles are in fact logic-based placement puzzles. The object of the game is to enter a numerical digit from 1 through 9 in each cell which is found on a 9 x 9 grid which is subdivided into 3 x 3 sub grids or regions. Some digits are often specified in some cells. These are referred as givens. Ideally, at the end of the game, every row, column, and region should contain only one instance of every numeral from 1 through 9. Patience and common sense are two qualities needed in order to complete the game.

Number puzzles quite similar to the Sudoku Puzzles have previously been in existence and have found publication in many magazines for over a century now. For instance, Le Siecle, a daily newspaper based in France, featured, as early as 1892, a 9x9 grid with 3x3 sub-squares, but used only double-digit figures instead of the existing 1-9. Another French newspaper, La France, created a brainteaser in 1895 that utilized the numbers 1-9 but had no 3x3 sub-squares, but the solution does carry 1-9 in each of the 3 x 3 areas where the sub-squares would be. These brainteasers were regular features in numerous other newspapers, including L'Echo de Paris for about a decade, but it unfortunately vanished with the advent of the First World War.

Printable Sudoku are now available and this makes it easier to play offline while Downloadable Sudoku for Kids are very helpful to develop a kid's brain.

Howard Garns, a 74-year-old retired architect and freelance brainteaser constructor, was considered the designer of the modern Sudoku Puzzles. His design was first published in 1979 in New York by Dell, through its magazine Dell Pencil Puzzles and Word Games under the title Number Place. Garns' creation was presumably inspired by the Latin square invention of Leonhard Euler, with some modifications, basically, with the addition of a regional restriction and the presentation of the game as a puzzle, giving a partially-complete grid and requiring the solver to fill in the unfilled cells.

Sudoku Puzzles were then taken to Japan by the puzzle publishing company Nikoli. It launched the game in its paper Monthly Nikoli sometime in April 1984. Nikoli president Maki Kaji gave it the name Sudoku, a name that the company holds trademark rights over; other Japanese publications which featured the puzzle have to settle for other names.

In 1989, Sudoku Puzzles entered the video games arena when it was published as DigitHunt on the Commodore 64. It was initiated by Loadstar/Softdisk Publishing. Since then, other computerized versions of the Sudoku Puzzles have been developed. For example, Yoshimitsu Kanai made several computerized puzzle generator of the game under the name Single Number for the Apple Macintosh in 1995 both in English and in Japanese language; for the Palm (PDA) in 1996; and for Mac OS X in 2005.

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Sudoku Puzzles: An Interesting Brain Teaser