<?xml version="1.0" encoding="utf-8"?>
<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" type="topic" id="game" lang="en_GB">
	<info>
		<link type="guide" xref="index#play"/>
		<license xmlns="http://projectmallard.org/1.0/" href="http://creativecommons.org/licenses/by-sa/3.0/">

  <p>This work is licensed under a
  <link href="http://creativecommons.org/licenses/by-sa/3.0/">Creative Commons
  Attribution-ShareAlike 3.0 Unported License</link>.</p>

</license>
		<desc>Introduction to the game of Hitori.</desc>
	</info>
	<title>Hitori the Game</title>

	<p>Hitori is a small logic puzzle in a similar vein to the more popular Sudoku. In the game, the player starts with a square board of numbers, and has to <em>paint out</em> cells until there are no duplicate numbers in each row and column. The following rules apply:</p>
	<list>
		<item><p>There must only be one of each number in the unpainted cells in each row and column.</p></item>
		<item><p>No painted cell may be adjacent to another, vertically or horizontally.</p></item>
		<item><p>All the unpainted cells must be joined together vertically and horizontally in one group.</p></item>
	</list>
	<p>These are the only three rules of the game, and so there may well be multiple solutions to a Hitori puzzle board.</p>

	<figure>
		<title>Main game window</title>
		<desc><app>Hitori</app> main window</desc>
		<media type="image" src="figures/hitori_main_window.png" mime="image/png" style="center">
			<p><app>Hitori</app> main window.</p>
		</media>
	</figure>
</page>
