<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" [
<!ENTITY legal SYSTEM "legal.xml">
<!ENTITY appversion "2.18">
<!ENTITY manrevision "2.18">
<!ENTITY date "December">
<!ENTITY app "<application>Chess</application>">
<!ENTITY appname "Chess">
<!ENTITY version "2.22">
]>
<!-- 
      (Do not remove this comment block.)
  Maintained by the GNOME Documentation Project
  http://developer.gnome.org/projects/gdp
  Template version: 2.0 beta
  Template last modified Feb 12, 2002
-->
<!-- =============Document Header ============================= -->
<article id="index" lang="oc">
<!-- please do not change the id; for translations, change lang to -->
<!-- appropriate code -->
<articleinfo>
 <title><application>Chess</application> Manual</title>
 
 <abstract role="description">
       <para>
	glChess is a game for playing the classic board game of chess, 
	in which two players simulate a battle by capturing the opponents 
	pieces and ultimately the king. It can be played in 2D or 3D mode, 
	full screen or in a window.
       </para>
 </abstract>
 <copyright>
  <year>2006-2008</year>
  <holder>Andreas Røsdal</holder>
 </copyright>
<!-- translators: uncomment this:

  <copyright>
   <year>2002</year>
   <holder>ME-THE-TRANSLATOR (Latin translation)</holder>
  </copyright>

   -->
<!-- An address can be added to the publisher information.  If a role is 
     not specified, the publisher/author is the same for all versions of the 
     document.  -->
    <publisher role="maintainer"> 
      <publishername>Projècte de documentacion de GNOME</publishername> 
    </publisher> 

     <legalnotice id="legalnotice">
	<para>
	  Permission is granted to copy, distribute and/or modify this
	  document under the terms of the GNU Free Documentation
	  License (GFDL), Version 1.1 or any later version published
	  by the Free Software Foundation with no Invariant Sections,
	  no Front-Cover Texts, and no Back-Cover Texts.  You can find
	  a copy of the GFDL at this <ulink type="help" url="ghelp:fdl">link</ulink> or in the file COPYING-DOCS
	  distributed with this manual.
         </para>
         <para> This manual is part of a collection of GNOME manuals
          distributed under the GFDL.  If you want to distribute this
          manual separately from the collection, you can do so by
          adding a copy of the license to the manual, as described in
          section 6 of the license.
	</para>

	<para>
	  Many of the names used by companies to distinguish their
	  products and services are claimed as trademarks. Where those
	  names appear in any GNOME documentation, and the members of
	  the GNOME Documentation Project are made aware of those
	  trademarks, then the names are in capital letters or initial
	  capital letters.
	</para>

	<para>
	  DOCUMENT AND MODIFIED VERSIONS OF THE DOCUMENT ARE PROVIDED
	  UNDER  THE TERMS OF THE GNU FREE DOCUMENTATION LICENSE
	  WITH THE FURTHER UNDERSTANDING THAT:

	  <orderedlist>
		<listitem>
		  <para>DOCUMENT IS PROVIDED ON AN "AS IS" BASIS,
                    WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR
                    IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
                    THAT THE DOCUMENT OR MODIFIED VERSION OF THE
                    DOCUMENT IS FREE OF DEFECTS MERCHANTABLE, FIT FOR
                    A PARTICULAR PURPOSE OR NON-INFRINGING. THE ENTIRE
                    RISK AS TO THE QUALITY, ACCURACY, AND PERFORMANCE
                    OF THE DOCUMENT OR MODIFIED VERSION OF THE
                    DOCUMENT IS WITH YOU. SHOULD ANY DOCUMENT OR
                    MODIFIED VERSION PROVE DEFECTIVE IN ANY RESPECT,
                    YOU (NOT THE INITIAL WRITER, AUTHOR OR ANY
                    CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
                    SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER
                    OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
                    LICENSE. NO USE OF ANY DOCUMENT OR MODIFIED
                    VERSION OF THE DOCUMENT IS AUTHORIZED HEREUNDER
                    EXCEPT UNDER THIS DISCLAIMER; AND
		  </para>
		</listitem>
		<listitem>
		  <para>UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL
                       THEORY, WHETHER IN TORT (INCLUDING NEGLIGENCE),
                       CONTRACT, OR OTHERWISE, SHALL THE AUTHOR,
                       INITIAL WRITER, ANY CONTRIBUTOR, OR ANY
                       DISTRIBUTOR OF THE DOCUMENT OR MODIFIED VERSION
                       OF THE DOCUMENT, OR ANY SUPPLIER OF ANY OF SUCH
                       PARTIES, BE LIABLE TO ANY PERSON FOR ANY
                       DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR
                       CONSEQUENTIAL DAMAGES OF ANY CHARACTER
                       INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS
                       OF GOODWILL, WORK STOPPAGE, COMPUTER FAILURE OR
                       MALFUNCTION, OR ANY AND ALL OTHER DAMAGES OR
                       LOSSES ARISING OUT OF OR RELATING TO USE OF THE
                       DOCUMENT AND MODIFIED VERSIONS OF THE DOCUMENT,
                       EVEN IF SUCH PARTY SHALL HAVE BEEN INFORMED OF
                       THE POSSIBILITY OF SUCH DAMAGES.
		  </para>
		</listitem>
	  </orderedlist>
	</para>
  </legalnotice>


   <!-- This file  contains link to license for the documentation (GNU FDL), and 
        other legal stuff such as "NO WARRANTY" statement. Please do not change 
	any of this. -->

    <authorgroup> 
      <author> 
	<firstname>Andreas</firstname> 
	<surname>Røsdal</surname> 
	<affiliation> 
	  <address> <email>andrearo@pvv.ntnu.no</email> </address> 
	</affiliation> 
      </author> 
<!-- This is appropriate place for other contributors: translators,
      maintainers,  etc. Commented out by default.
       <othercredit role="translator">
	<firstname>Latin</firstname> 
	<surname>Translator 1</surname> 
	<affiliation> 
	  <orgname>Latin Translation Team</orgname> 
	  <address> <email>translator@gnome.org</email> </address> 
	</affiliation>
	<contrib>Latin translation</contrib>
      </othercredit>
-->
    </authorgroup>
	
	<releaseinfo revision="2.26" role="review"/>
    
<revhistory>
      <revision> 
	<revnumber>Chess Manual V2.18</revnumber> 
	<date>Decembre</date> 
	<revdescription> 
	  <para role="author">Andreas Røsdal <email>andrearo@pvv.ntnu.no</email></para>
	  <para role="publisher">Projècte de documentacion de GNOME</para>
	</revdescription> 
      </revision>
  <revision>
   <revnumber>1</revnumber>
   <date>Decembre de 2006</date>
   <authorinitials>AR</authorinitials>
   <revremark>
   First draft completed.
   </revremark>
  </revision>
 </revhistory>

    <releaseinfo>This manual describes version 2.18 of Chess.
    </releaseinfo>
    <!-- The following feedback information only applies to appliactions
    listed in bugzilla.gnome.org and bugzilla.ximian.com. For other
    applications, please provide your own feedback info or remove thsi
    section altogether -->
    <legalnotice> 
      <title>Feedback</title> 
      <para>To report a bug or make a suggestion regarding the <application>Chess</application> application or
	this manual, follow the directions in the 
	<ulink url="ghelp:user-guide?feedback-bugs" type="help">GNOME Feedback Page</ulink>. 
      </para>
<!-- Translators may also add here feedback address for translations -->
    </legalnotice>

</articleinfo>

  <indexterm zone="index"> 
    <primary>glChess</primary> 
  </indexterm>

<!-- ============= Document Body ============================= -->
<!-- ============= Introduction ============================== -->
<sect1 id="intro">
 <title>Introduccion</title>
 <sect2 id="what">
  <title>Overview of Chess</title>
  
  <para>
	Chess is a two-player strategy board game. <application>glChess</application> is a 2D/3D chess game, where games
	can be played between a combination of human and computer players. glChess detects known third party chess engines
	for computer players. The game was originally developed by Robert Ancell, now the game is included in gnome-games.
  </para>

  <para>
	<application>glChess</application> is written in Python and uses GTK+ and Cairo to render the chess board. 3D support is 
	optionally available using OpenGl,
	using the Python OpenGL and GtkGLExt libraries. As with most modern 3D programs hardware acceleration is recommended but it should
	run OK in software. glChess is bundled with GNU Chess as the default chess AI. glChess can be played in network mode against 
	other players on the Internet.
  </para>
  <para>
	Chess is played on a square chessboard, consisting of 64 squares of alternating color. Each player begins the game with sixteen pieces: one king, one queen, two rooks, two knights, two bishops, and eight pawns. One player controls the white pieces and the other player controls the black pieces; the player that controls white is the first to move. The players take turns moving pieces; certain moves involve a "capturing" of an opponent's piece, removing it from the chessboard. The object of the game is to checkmate the opponent's king. This occurs when the king is under immediate attack (in check) and there is no way to remove it from attack on the next move. Theoreticians have developed extensive chess strategies and tactics since the game's inception.
</para>
<para>
The current form of the game emerged in South Europe in the second half of the 15th century after evolving from similar, much older games of Asian origin. Chess is one of the world's most popular board games. The tradition of competitive chess began in the 16th century. The first official World Chess Champion, Wilhelm Steinitz, claimed his title in 1886; his modern equivalent, Vladimir Kramnik, is the 14th Champion in the lineage. There are also biennial world team events called Chess Olympiads. Since the 20th century, two international organizations, the World Chess Federation and the International Correspondence Chess Federation have organized and overseen the top chess competitions and international titles.
</para>
<para>
One of the goals of early computer scientists was to create a chess-playing machine, and today's chess is deeply influenced by the overwhelming abilities of current chess programs. In 1997, a match between Garry Kasparov, then World Champion, and IBM's Deep Blue chess program proved that computers are able to beat even the strongest human players.
</para>

  <para>
   To run <application>glChess</application>, select
   <guimenuitem>Chess</guimenuitem> from the
   <guisubmenu>Games</guisubmenu> submenu of the <guimenu>Main
   Menu</guimenu>, or type <command>glchess</command> on the
   command line. 
  </para>
 </sect2>

</sect1>


<sect1 id="playing-glchess">
 <title>Playing glChess</title>
 <sect2 id="main-game-window">
<title>Main game window</title>

     <para>
Starting glChess displays the main game window as shown below. The game is played
by moving chess pieces using the mouse. Each player alternates to move a piece in the appropriate
colour, from one board position to another valid board position. 
The main game window is organized in three main areas: In the top menu and toolbar area,
most common game actions can be made. The chess board is in the middle of the window,
where the game is played by moving chess pieces using the mouse. Finally, the game
history panel is shown at the bottom, where information about the game history, the remaining
move time and buttons for showing previous or next moves are available.
</para>

 <figure id="main-game-shot">
  <title>Main window in glChess</title>
  <screenshot>
    <mediaobject> 
    <imageobject>
  <imagedata fileref="figures/game.png" format="PNG" srccredit="Andreas"/>
   </imageobject>
    <textobject> 
      <phrase>Main window in glChess.</phrase> 
    </textobject> 
  </mediaobject>
  </screenshot>
 </figure>
</sect2>

<sect2>
<title>Starting a new game</title>
<para>
To start a new game, press the <guibutton>New Game</guibutton> buttton on the toolbar. 
The new game dialog is then shown, which allows you to setup a new game with the settings
of your choice. In the <interface>game properties</interface> section, the game name and time-limit for
each player's move is set. In the <interface>players</interface> section, it is possible to setup the
number of human and AI players. If you have installed any supported chess engines as AI players,
these will be displayed in the list of available players. Finally, the difficulty setting of the AI
players is set in the <interface>difficulty</interface> section.
</para>

 <figure id="new-game-shot">
  <title>Start new game dialog</title>
  <screenshot>
    <mediaobject> 
    <imageobject>
  <imagedata fileref="figures/new_game.png" format="PNG" srccredit="Andreas"/>
   </imageobject>
    <textobject> 
      <phrase>Start new game dialog for glChess.</phrase> 
    </textobject> 
  </mediaobject>
  </screenshot>
 </figure>

</sect2>




<sect2 id="menubar">
   <title>Menus</title>
   <para>
    The menu bar, located at the top of the <interface>Main
    Window</interface>, contains the following menus:
   </para>

   <variablelist>
    <varlistentry>
     <term><guimenu>Game</guimenu></term>
     <listitem>
      <para>
       This menu contains:
       <itemizedlist>
        <listitem>
         <para>
          <menuchoice>
           <shortcut>
            <keysym>Ctrl+N</keysym>
           </shortcut>
           <guimenuitem>New</guimenuitem>
          </menuchoice>
           This starts a new game of <application>Chess</application>.
         </para>
        </listitem>
	<listitem>
         <para>
          <menuchoice>
           <shortcut>
            <keysym>Ctrl+O</keysym>
           </shortcut>
           <guimenuitem>Open</guimenuitem>
          </menuchoice>
           Loads a previously saved game.
         </para>
        </listitem>
	<listitem>
         <para>
          <menuchoice>
           <shortcut>
            <keysym>Ctrl+S</keysym>
           </shortcut>
           <guimenuitem>Save</guimenuitem>
          </menuchoice>
           Saves the current game of chess.
         </para>
        </listitem>
	<listitem>
         <para>
          <menuchoice>
           <guimenuitem>Save AS</guimenuitem>
          </menuchoice>
           Saves the current game of chess with a new filename.
         </para>
        </listitem>

        <listitem>
         <para>
          <menuchoice>
           <shortcut>
            <keysym>Ctrl+L</keysym>
           </shortcut>
           <guimenuitem>Network Game</guimenuitem>
          </menuchoice>
           This starts a network multiplayer game using GGZ Gaming Zone.
         </para>
        </listitem>
        <listitem>
         <para>
          <menuchoice>
           <guimenuitem>Resign</guimenuitem>
          </menuchoice>
           To concede loss of the game, so that the opponent wins the game. 
         </para>
        </listitem>
        <listitem>
         <para>
          <menuchoice>
           <guimenuitem>Claim Draw</guimenuitem>
          </menuchoice>
	    If a claimed draw is accepted, the game ends without victory for either player. 
          </para>
        </listitem>
        <listitem>
         <para>
          <menuchoice>
           <shortcut>
            <keysym>Ctrl+Q</keysym>
           </shortcut>
           <guimenuitem>Quit</guimenuitem>
          </menuchoice>
	 Ends the game.
         </para>
        </listitem>
       </itemizedlist>
      </para>
     </listitem>
    </varlistentry>


    <varlistentry>
     <term><guimenu>View</guimenu></term>
     <listitem>
      <para>
       This menu contains:
       <itemizedlist>
        <listitem>
         <para>
          <menuchoice>
           <shortcut>
            <keysym>F11</keysym>
           </shortcut>
           <guimenuitem>Fullscreen</guimenuitem>
          </menuchoice>
           Shows the game window in fullscreen mode.
         </para>
        </listitem>
	<listitem>
         <para>
          <menuchoice>
           <guimenuitem>3D Chess View</guimenuitem>
          </menuchoice>
           Enables 3D chess view mode using OpenGL. This requires Python OpenGL and Python GTKGLExt installed,
	   in addition to a 3D graphics card setup properly. Please contact your system administrator if you have problems,
	   either way you will always be able to play chess in 2D mode.
         </para>
        </listitem>
	 <listitem>
         <para>
          <menuchoice>
           <guimenuitem>Show Logs</guimenuitem>
          </menuchoice>
	  Show logs for debugging glChess and the active chess AI engines.
         </para>
        </listitem>
     </itemizedlist>
      </para>
     </listitem>
    </varlistentry>

   <varlistentry>
     <term><guimenu>Settings</guimenu></term>
     <listitem>
      <para>
       This menu contains:
       <itemizedlist>
        <listitem>
         <para>
          <menuchoice>
           <guimenuitem>Preferences</guimenuitem>
          </menuchoice>
            This opens your window to edit <link linkend="prefs">
           preferences.</link>
         </para>
        </listitem>
       </itemizedlist>
      </para>
     </listitem>
    </varlistentry>   

    <varlistentry>
     <term><guimenu>Help</guimenu></term>
     <listitem>
      <para>
       This menu contains:
       <itemizedlist>
        <listitem>
          <para>
          <menuchoice>
           <shortcut>
            <keysym>F1</keysym>
           </shortcut>
           <guimenuitem>Contents</guimenuitem>
          </menuchoice>
           Display this manual.
         </para>
         <para>
          <guimenuitem>About</guimenuitem>  This opens the
          <interface>About</interface> dialog which shows
          basic information about
          <application>glChess</application>, such as
          the author's name, the version number of the game.
         </para>
        </listitem>
       </itemizedlist>
      </para>
     </listitem>
    </varlistentry>
   </variablelist>


</sect2>


</sect1>


<sect1 id="chess-rules">
 <title>Chess Rules</title>
 <sect2 id="rules-of-chess">
  <title>The Rules of Chess</title>
<!--
The reference for this chapter is http://en.wikipedia.org/wiki/Chess
-->
  <para>
Chess is played on a square board of eight rows (called ranks and denoted with numbers 1 to 8) and eight columns (called files and denoted with letters a to h) of squares. The colors of the sixty-four squares alternate between light and dark, and are referred to as "light squares" and "dark squares". The chessboard is placed so that each player has a white square in the near right hand corner, and the pieces are set out as shown in the diagram, with each queen on a square that matches its color.
</para><para>
Each player begins the game with sixteen pieces: each player's pieces comprise one king, one queen, two rooks, two bishops, two knights and eight pawns. One player, referred to as White, controls the white pieces and the other player, Black, controls the black pieces; White is always the first player to move. The colors are chosen either by a friendly agreement, by a game of chance or by a tournament director. The players alternate moving one piece at a time (with the exception of castling, when two pieces are moved at the same time). Pieces are moved to either an unoccupied square, or one occupied by an opponent's piece, capturing it and removing it from play. With one exception (en passant), all pieces capture opponent's pieces by moving to the square that the opponent's piece occupies.
</para>
 <sect3 id="rules-piece-king">
  <title>Rei</title>
<para>When a king is under direct attack by one (or possibly two) of the opponent's pieces, the player is said to be in check. When in check, only moves that remove the king from attack are permitted. The player must not make any move that would place his king in check. The object of the game is to checkmate the opponent; this occurs when the opponent's king is in check, and there are no moves that remove the king from attack.

</para><para>
    The king can move only one square horizontally, vertically, or diagonally. Once in the game, each king is allowed to make a special double move, to castle. Castling consists of moving the king two squares towards a rook, then moving the rook onto the square over which the king crossed. Castling is only permissible if all of the following conditions hold:
</para>
<itemizedlist spacing="compact">
  <listitem>
   <para>The player must never have moved both the king and the rook involved in castling.</para>
  </listitem>
  <listitem>
   <para>There must be no pieces between the king and the rook.</para>
  </listitem>
  <listitem>
   <para>The king may not currently be in check, nor may the king pass through squares that are under attack by enemy pieces. As with any move, castling is illegal if it would place the king in check.</para>
 </listitem>
  <listitem>
   <para>The king and the rook must be on the same rank (to exclude castling with a promoted pawn).</para>
  </listitem>
</itemizedlist>
</sect3>
 <sect3 id="rules-piece-rook">
  <title>Rook</title>
<para>
   The rook moves any number of vacant squares vertically or horizontally (it is also involved in the king's special move of castling).
</para>
</sect3>
 <sect3 id="rules-piece-bishop">
  <title>Bishop</title>
<para>
    The bishop moves any number of vacant squares in any direction diagonally. Note that a bishop never changes square color, therefore players speak about "light-squared" or "dark-squared" bishops.
</para>
</sect3>
 <sect3 id="rules-piece-queen">
  <title>Queen</title>
<para>
    The queen can move any number of vacant squares diagonally, horizontally, or vertically.
</para>
</sect3>
 <sect3 id="rules-piece-knight">
  <title>Knight</title>
<para>
    The knight can jump over occupied squares and moves two spaces horizontally and one space vertically or vice versa, making an "L" shape. A knight in the middle of the board has eight squares to which it can move. Note that every time a knight moves, it changes square color.

</para>
</sect3>
 <sect3 id="rules-piece-pawns">
  <title>Pawns</title>
<para>

    Pawns have the most complex rules of movement: A pawn can move forward one square, if that square is unoccupied. If it has not moved yet, the pawn has the option of moving two squares forward, if both squares in front of the pawn are unoccupied. A pawn cannot move backward. When such an initial two square advance is made that puts that pawn horizontally adjacent to an opponent's pawn, the opponent's pawn can capture that pawn "en passant" as if it moved forward only one square rather than two, but only on the immediately subsequent move. Pawns are the only pieces that capture differently than they move. They can capture an enemy piece on either of the two spaces adjacent to the space in front of them (i.e., the two squares diagonally in front of them), but cannot move to these spaces if they are vacant. If a pawn advances all the way to its eighth rank, it is then promoted (converted) to a queen, rook, bishop, or knight of the same color. In practice, the pawn is almost always promoted to a queen.
</para>
</sect3>

<sect3 id="rules-movement-others">
<title>Remaining movement rules</title>
<para>
With the exception of the knight, pieces cannot jump over each other. One's own pieces ("friendly pieces") cannot be passed if they are in the line of movement, and a friendly piece can never replace another friendly piece. Enemy pieces cannot be passed, but they can be "captured". When a piece is captured (or taken), the attacking piece replaces the enemy piece on its square (en passant being the only exception). The captured piece is thus removed from the game and may not be returned to play for the remainder of the game. The king cannot be captured, only put in check. If a player is unable to get the king out of check, checkmate results, with the loss of the game.

</para><para>
Chess games do not have to end in checkmate — either player may resign if the situation looks hopeless. Games also may end in a draw (tie). A draw can occur in several situations, including draw by agreement, stalemate, threefold repetition of a position, the fifty move rule, or a draw by impossibility of checkmate (usually because of insufficient material to checkmate).
</para>
</sect3>
</sect2>


<sect2 id="timed-games">
<title>Timed Games</title>
<para>
Games can be played with a time-limit by setting a move time when creating a new game. In timed games each
player has a certain amount of time available for deciding which moves to make, and the time remaining 
for each player decreases only when it is their turn to move.
</para>
</sect2>

<sect2 id="draw">
<title>Game Draw</title>
<para>
A game that ends without victory for either player. Most drawn games are draws by agreement based upon the rules. The other ways that a game can end in a draw are stalemate, three-fold repetition, the fifty-move rule, and insufficient material. A position is said to be a draw (or a drawn position) if either player can, through correct play, eventually force the game into a position where the game must end in a draw, regardless of the moves made by the other player.
</para>


<sect3 id="stalemate">
<title>Stalemate</title>
<para>
A stalemate is a position in which the player whose turn it is to move has no legal move and his king is not in check. A stalemate results in an immediate draw.
</para>
</sect3>

<sect3 id="threefold-repetition">
<title>Threefold repetetion</title>
<para>
The game is drawn if the same position occurs three times with the same player to move, and with each player having the same set of legal moves each time (the latter includes the right to take en passant and the right to castle).
</para>
</sect3>


<sect3 id="fifty-move-rule">
<title>Fifty move rule</title>
<para>
The fifty move rule states that the game is drawn after fifty moves from each side without a pawn move or capture.
</para>
</sect3>

<sect3 id="insuff-material">
<title>Insufficient material</title>
<para>
An endgame scenario in which all pawns have been captured, and one side has only its king remaining while the other is down to just a king or a king plus one knight or one bishop. The position is a draw because it is impossible for the dominant side to deliver checkmate regardless of play. Situations where checkmate is possible only if the inferior side blunders are covered by the fifty-move rule.
</para>
</sect3>


</sect2>

</sect1>




<sect1 id="prefs">
 <title>Game Settings</title>


<sect2 id="game-prefs">
  <title>Game Preferences</title>
  <para>
  This preference dialog allows you to modify board orientation, move format and promotion type.
  </para>

 <figure id="preferences-game-shot">
  <title>Game preferences dialog for glChess</title>
  <screenshot>
    <mediaobject> 
    <imageobject>
  <imagedata fileref="figures/preferences_game.png" format="PNG" srccredit="Andreas"/>
   </imageobject>
    <textobject> 
      <phrase>Game preferences dialog for glChes.</phrase> 
    </textobject> 
  </mediaobject>
  </screenshot>
 </figure>


</sect2>



<sect2 id="view-prefs">
  <title>View Preferences</title>
  <para>
  This preference dialog allows you to modify the look and feel of glChess. 
  </para>

 <figure id="preferences-view-shot">
  <title>View preferences dialog for glChess</title>
  <screenshot>
    <mediaobject> 
    <imageobject>
  <imagedata fileref="figures/preferences_view.png" format="PNG" srccredit="Andreas"/>
   </imageobject>
    <textobject> 
      <phrase>View preferences dialog for glChess.</phrase> 
    </textobject> 
  </mediaobject>
  </screenshot>
 </figure>


</sect2>

</sect1>


<sect1 id="engines">
 <title>Chess Engines</title>

     <para>
	glChess should be able to use any Chess Engine Communication Protocol or Universal Chess Interface compatible chess engines, including these chess engines:

     </para>

<!-- Please keep AI list synchronized with glchess/data/ai.xml -->
<itemizedlist spacing="compact">
  <listitem>
	<para>GNUChess</para>
  </listitem>
  <listitem>
	<para>Sjeng</para>
  </listitem>
  <listitem>
	<para>Amy</para>
 </listitem>
  <listitem>
	<para>Crafty</para>
  </listitem>
  <listitem>
	<para>Faile</para>
  </listitem>
  <listitem>
	<para>Phalanx</para>
  </listitem>
  <listitem>
	<para>Glaurung</para>
  </listitem>
  <listitem>
	<para>HoiChess</para>
  </listitem>
  <listitem>
	<para>Diablo</para>
  </listitem>
  <listitem>
	<para>BBChess	</para>
  </listitem>
  <listitem>
	<para>Fruit</para>
  </listitem>
  <listitem>
	<para>Amundsen</para>
  </listitem>
  <listitem>
	<para>Shredder</para>
  </listitem>
  <listitem>
	<para>Toga II</para>
  </listitem>
  <listitem>
	<para>Boo's Chess Engine</para>
  </listitem>


</itemizedlist>

</sect1>


<sect1 id="bugs">
 <title>Known Bugs and Limitations</title>

 <itemizedlist mark="opencircle">
    <listitem>
     <para>
	There are no documented bugs or limitations in glChess. To find areas where you can help improve  
        glChess, please refer to the TODO file which is distributed with the game.	
     </para>
    </listitem>
 </itemizedlist>

</sect1>

<sect1 id="credits">
 <title>Autors</title>
  <para>
   <application>glChess</application> was written by Robert Ancell,
   and is now maintained in gnome-games. This documentation was originally written
   by Andreas Røsdal, with input from several GPL sources. 
   To report a bug or make a suggestion regarding this application or
   this manual, follow the directions in this 
   <ulink url="ghelp:user-guide?feedback-bugs" type="help">document</ulink>.
  </para>

  <!-- For translations: uncomment this:

  <para>
   Latin translation was done by ME
   (<email>MYNAME@MYADDRESS</email>). Please send all  comments  and
   suggestions regarding this translation to SOMEWHERE.
  </para>

  -->

 </sect1>


 <!-- ============= Application License ============================= -->

 <sect1 id="license">
  <title>Licéncia</title>
  <para>
   This program is free software; you can redistribute it and/or
   modify it under the terms of the <citetitle>GNU General Public
   License</citetitle> as published by the Free Software Foundation;
   either version 2 of the License, or (at your option) any later
   version.
  </para>
  <para>
   This program is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   <citetitle>GNU General Public License</citetitle> for more details.
  </para>
  <para>
   A copy of the <citetitle>GNU General Public License</citetitle> is
   included as an appendix to the <citetitle>GNOME Users
   Guide</citetitle>.  You may also obtain a copy of the
   <citetitle>GNU General Public License</citetitle> from the Free
   Software Foundation by visiting <ulink type="http" url="http://www.fsf.org">their Web site</ulink> or by writing to
   <address>
    Free Software Foundation, Inc.
    <street>59 Temple Place</street> - Suite 330
    <city>Boston</city>, <state>MA</state> <postcode>02111-1307</postcode>
    <country>USA</country>
   </address>
  </para>
 </sect1>
</article>
