The name Sudoku is the Japanese abbreviation of a longer phrase meaning the digits must remain single; it is a trademark of puzzle publisher Nikoli Co. Ltd in Japan. Other Japanese publishers refer to the puzzle as Nanpure (Number Place), which was its original title. More background information...
In Sudoku, you are presented with a grid which has some tiles filled in with numbers. To complete the game, you must fill all the other tiles with numbers ensuring that each number is used only once per row and column in the main grid. To make things a little more tricky, the main grid is split in to 9 sections and you can only use each number once per section as shown below:
Add the game to your content using the following notation:
The user will be asked to choose a difficulty level and then a random board for that difficulty will be displayed.
Note: We've used the center macro to center the game on the page.
The user will be asked to choose a skill level and then a random board for that level will be displayed:
If you want a more interactive version of the game, check out the sudoku-flash macro.