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	1. Sudoku		sudoku

Supplied by: Richard Munroe <e-mail contact>

Generate and solve sudoku puzzles

This package can be used to generate and solve sudoku puzzles.

It consists of a set of classes intended to be used as the infrastructure for sites which provide sudoku to third parties.

Provisions are made for generation sudoku puzzles from templates, so that particular shapes of clues show up in the puzzles.

This class is officially compatible with PHP 5.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Good (81.2%)`	`Sufficient (78.1%)`	`-`	`Sufficient (75.0%)`	`-`	`-`	`Not sure (55.9%)`	1080
Month:	Not yet rated by the users

	2. Sudoku Solver		sudoku

Supplied by: Ghica van Emde Boas <e-mail contact>

Solve Soduku puzzle game

Sudoku is a puzzle that has become very popular recently and has been published in many newspapers.

Sudoku is a number puzzle where you are presented with a grid of size 9 by 9, that is subdivided in 9 blocks of 3 by 3. Some fields in the grid contain a digit from 1 to 9. The objective is to fill in the rest of the fields such that each row, column and block will contain all digits exactly once. A good Sudoku has a single solution.

This class attempts to use the same strategies that a human player would use to solve a Sudoku puzzle. It can solve many Sudoku puzzles but not all, because it only uses logic and refrains from brute-force solving.

You can interactively influence the solution process to try out rules of your own. You can easily enter a Sudoku puzzle and save it to try it again later. PHP 5 is required.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Sufficient (69.4%)`	`Sufficient (75.0%)`	`Good (83.3%)`	`-`	`-`	`-`	`Not sure (50.6%)`	1459
Month:	There are not enough user ratings to display for this class.

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