Keyword Analysis & Research: printable sudoku puzzles

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Frequently Asked Questions

What is the total number of Sudoku puzzles possible?

On the web site the history page gives the total number of different Sudoku puzzles as 6,670,903,752,021,072,936,96.

How is the difficulty of a Sudoku puzzle determined?

Difficulty is determined by removing numbers from a completed grid - the more numbers we remove indicates a harder difficulty. Please NOTE: on occasion this may create puzzles that have more than one solution. The only way to tell if a Sudoku puzzle has only one solution is to solve it (behind the scenes), which takes time.

How do you print puzzles?

Open the file in Windows Live Photo Gallery and click the "File" menu to select "Print.". Select your paper size and a layout and click "Print" to print on hard stock paper. Cut the puzzle pieces out of the printout. Print a jigsaw puzzle template on sticker paper.

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