SudokuAid updates
Richard Jones has updated his SudokuAid and SudokuAid16 programs. As the name suggests, the purpose of these applications is to help complete a tricky Sudoku puzzle. Those who are currently not familiar with digitalised Sudoku, try SuperDoku. Other Sudoku games are available but this is considered the best.
SudokuAid and SudokuAid16 are available on the July 2007 (Volume 20, Issue 10) issue of Archive magazine's coverdisc or can be downloaded for free from here.
What is Sudoku?
Sudoku (数独) is a logic-based number placement puzzle. The objective is to fill a 9x9 grid so that each column, each row, and each of the nine 3x3 boxes contains the digits from 1 to 9. The puzzle setter provides a partially completed grid.
Completed Sudoku puzzles are a type of Latin square, with an additional constraint on the contents of individual regions. Leonhard Euler is sometimes incorrectly cited as the source of the puzzle, based on his work with Latin squares.
The modern puzzle was invented by an American, Howard Garns, in 1979 and published by Dell Magazines under the name "Number Place". It became popular in Japan in 1986, after it was published by Nikoli and given the name Sudoku, meaning single number. It became an international hit in 2005 and continues to be extremely popular to this day.
If you have a javascript enabled browser, you can play Sudoku online here, users with non-javascript browsers can play Sudoku online here.
