So what is all this talk about a Sudoku puzzle, or is it Suduko, or Suduku?
Well before we delve into all the craziness about this puzzle's name, lets just find out a little
about the origin of the game. ( I find it amusing that although developed by an American,
the game now is called 'Sudoku' . More on that in a moment.)
You might not know, but one of the earliest printed related versions of a Sudoku puzzle was actually published in a French newspaper in the 1890's- though it contained a typical 9x9 grid with the 3x3 sub-squares (that we all know today) , it used double digits and focused on mathematical addition, instead of logic to solve.
According to Will Shortz,( renowned puzzle creator and editor of the NY times) the modern Sudoku was most likely designed anonymously by Howard Garns , and first published in 1979 by Dell Magazines as ,'Number Place', (the earliest known examples of modern Sudoku).
At any rate in 1984 the puzzle was introduced in Japan as suji wa dokushin ni kagiru , loosely translated : the numbers must be unmarried (that is, occur singly).
Finally, this was abbreviated by contracting the expression: SUU( ji wa ) and DOKU ( shin ni kagiru ) and there we have it :
**We have a ton of Sudoku games for you to play,( in either PDF or interactive format), so for those of you who want to get started you can : PLAY SUDOKU ONLINE HERE.
There are many forms of Sudoku out there ( attesting to its wide popularity), Besides the standard 9×9 grid, variants of Sudoku puzzles include the following:
• 4×4 grid with 2×2 minigrids.
• 5×5 grid with pentomino (http://en.wikipedia.org/wiki/Pentomino) regions
( Logi-5). A pentomino is composed of five congruent squares, connected orthogonally.
• 6×6 grid with 2×3 regions.
• 7×7 grid with six heptomino (http://mathworld.wolfram.com/Heptomino.html)
• 16×16 grid (Super Sudoku).
• 25×25 grid (Sudoku the Giant).
• A 3-D Sudoku puzzle.
(Which use letters rather than numbers.)
.Godoku, or Wordoku.
Or for more detailed analysis of Sudoku rules/solutions:
For those of you wishing a refresher on the rules (read on) , as we discuss how-it-is-played.
Below we will be discussing the rules for the basic and most-widely popular form of Sudoku, (the 9x9).
We have also included a reference diagram on the left below.
Here are some useful resources on Sudoku:
See our page entitled Sudoku Solutions.
• Mathematics of Sudoku: http://en.wikipedia.org/wiki/Mathematics_of_Sudoku
• History of Sudoku: http://en.wikipedia.org/wiki/Sudoku#History
• Useful information on Sudoku: http://www.answers.com/topic/sudoku