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<title>XBoard - GNU Project - Free Software Foundation</title>
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<h2>XBoard</h2>

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<p>XBoard is a graphical user interface for chess in all its major
forms, including international chess, xiangqi (Chinese chess) and
shogi (Japanese chess), in addition to many minor variants such as
Losers Chess, Crazyhouse, Chess960 and Capabanca Chess. It displays a
chessboard on the screen, accepts moves made with the mouse, and loads
and saves games in Portable Game Notation (PGN). It serves as a
front-end for many different chess services, including:</p>
<ul>
<li>
Chess engines that will run on your machine and play a game against
you or help you analyze, such as GNU Chess, Crafty, or many
others.</li>

<li>Chess servers on the Internet, where you can connect to play chess
with people from all over the world, watch other users play, or just
hang out and chat.</li>

<li>Correspondence chess played by electronic mail. The CMail program
automates the tasks of parsing email from your opponent, playing his
moves out on your board, and mailing your reply move after you've
chosen it.</li>
</ul>
<p>XBoard runs on Unix and Unix-like systems that use the X Window
System. </p>

<h3>Winboard</h3>

<p>The project also includes a port to 32-bit Windows systems called
WinBoard.</p>
<p>Development for Winboard as well as downloading it, reporting bugs
and any other requests can be done at the same places as for
XBoard.</p>

<h3>Downloading XBoard/Winboard</h3>

<h4>stable version</h4>

<p>The current stable version
is: <a href="ftp://ftp.gnu.org/gnu/xboard/">4.4.0</a></p>
<p>It can be found on the main GNU ftp server:
<a href="http://ftp.gnu.org/gnu/xboard/">http://ftp.gnu.org/gnu/xboard/</a> (via http) and
<a href="ftp://ftp.gnu.org/gnu/xboard/">ftp://ftp.gnu.org/gnu/xboard/</a> (via ftp).</p>
<p>The bare Winboard binaries can also be found at those locations in
the winboard directory
(<a href="http://ftp.gnu.org/gnu/xboard/winboard/">http</a>,<a href="http://ftp.gnu.org/gnu/xboard/winboard/">ftp</a>).
An installer package for Windows together with several engines and
other useful files can be found at
the <a href="http://www.open-aurec.com/wbforum/viewtopic.php?f=19&t=50387">Winboard
forum</a>.</p>

<p>It can also be found on one of the <a href="/prep/ftp.html">mirrors
of ftp.gnu.org</a>;
please <a href="http://ftpmirror.gnu.org/xboard">use a mirror</a> if
possible.</p>

<h4>development version</h4>

<p>Current unstable version: is: <a href="ftp://alpha.gnu.org/gnu/xboard/">4.4.1.pre</a>. </p>

<p>For development sources and other information, please see
the <a href="http://savannah.gnu.org/projects/xboard/">XBoard project
page</a> at <a href="http://savannah.gnu.org">savannah.gnu.org</a>.</p>

<p>A snapshot of the latest source code is available at
the <a href="http://git.savannah.gnu.org/cgit/xboard.git">git
repository</a> on Savannah.</p>

<h3>Documentation</h3>

<p><a href="manual/">Documentation for XBoard</a> is available online,
as is <a href="/manual/">documentation for most GNU software</a>.  You
may also find more information about XBoard by
running <em>info&nbsp;xboard</em> or <em>man&nbsp;xboard</em>, or by
looking at <em>/usr/doc/xboard/</em>,
<em>/usr/local/doc/xboard/</em>, or similar directories on your system.</p>


<h3>Screenshots</h3>

<p>These are screenshots taken from version 4.4.0 (click to enlarge).</p>
<a href="graphics/xboard-4.4.0.png"><img src="graphics/xboard-4.4.0.png" alt=" [screenshot normal game] " height="200" /></a>
<a href="graphics/xboard-4.4.0-variant.png"><img src="graphics/xboard-4.4.0-variant.png" alt=" [screenshot bughouse game] " height="200" /></a>
<a href="graphics/xboard-4.4.0-showgi.png"><img src="graphics/xboard-4.4.0-showgi.png" alt=" [screenshot bughouse game] " height="200" /></a>
<a href="graphics/xboard-4.4.0-petite.png"><img src="graphics/xboard-4.4.0-petite.png" alt=" [screenshot bughouse game] " height="200" /></a>
<a href="graphics/xboard-4.4.0-XQ.png"><img src="graphics/xboard-4.4.0-XQ.png" alt=" [screenshot bughouse game] " height="200" /></a>

<h3>Links</h3>

<ul>
  <li> XBoard/Winboard 
    <ul>
      <li> <a href="http://www.tim-mann.org/chess.html">Tim's original pages</a> are still available.</li>
      <li> XBoard can also run engines that use the UCI protocol, with
        the aid of the Polyglot protocol adapter.  A new Polyglot
        version, (1.4.30b), especially adapted to support the new
        features of XBoard 4.4.0, can be
        found <a href="http://alpha.uhasselt.be/Research/Algebra/Toga/polyglot-release/">here</a>.</li>
    </ul>
  </li>
  <li> Incomplete list of computer engines that work with XBoard
    <ul>
      <li><a href="http://www.gnu.org/software/chess/">GNU chess</a></li>
      <li><a href="http://home.hccnet.nl/h.g.muller/CVfairy.html">Fairy-Max</a></li>
      <li><a href="http://wbec-ridderkerk.nl/html/lastupdates.htm">A list with lots of engines</a></li>
      <li><a href="http://home.hccnet.nl/h.g.muller/XQ.html">List of Xiangqi engines</a></li>
      <li> other popular engines are crafty, phalanx, fruit, toga2, glaurung, ... </li>
    </ul>
  </li>
  <li> Chess server you can connect to using XBoard
    <ul>
      <li> <a href="http://www.freechess.org"> Free Internet Chess Server (FICS) </a></li>
      <li> <a href="http://www.chessclub.com/"> The Internet Chess Club </a> </li>
    </ul>
  </li>
  <li> Other interfaces
    <ul>
      <li> <a href="http://www.bergo.eng.br/eboard/">eboard</a> </li>
    </ul>
  </li>
</ul>

<h3>Frequently Asked Question(FAQ)</h3>

<p>If you have any questions, please check out our <a href="FAQ.html">FAQ</a>.</p>


<h3>Mailing Lists and Discussion Forums</h3>

<h4>mailing lists</h4>

<p>XBoard has two mailing lists:
<a href="mailto:bug-xboard@gnu.org">&lt;bug-xboard@gnu.org&gt;</a> and
<a href="mailto:xboard-devel@gnu.org">&lt;xboard-devel@gnu.org&gt;</a>.</p>

<p>The main discussion list is
<a href="mailto:xboard-devel@gnu.org">&lt;xboard-devel@gnu.org&gt;</a>,
and is used to discuss most aspects of XBoard, including development
and enhancement requests. Please send bug reports
to <a href="mailto:bug-xboard@gnu.org">&lt;bug-xboard@gnu.org&gt;</a>.</p>

<p>Announcements about XBoard and most other GNU software are made on
<a href="mailto:info-gnu@gnu.org">&lt;info-gnu@gnu.org&gt;</a>.</p>

<p>To subscribe to these or any GNU mailing lists, please send an empty
mail with a Subject: header of just <tt>subscribe</tt> to the relevant
-request list.  For example, to subscribe yourself to the GNU
announcement list, you would send mail to <a
href="mailto:info-gnu-request@gnu.org?Subject=subscribe">&lt;info-gnu-request@gnu.org&gt;</a>.
Or you can use the <a
href="http://lists.gnu.org/mailman/listinfo/info-gnu">mailing list web
interface</a>.</p>

<h4>discussion forums</h4>

<p>A very active forum is the <a href="http://www.open-aurec.com/wbforum/">WinBoard Forum</a> (where our current main developer HGM can be found).</p>

<h3>Reporting Bugs</h3>

<p> If you think you found a bug, please check the <a href="http://savannah.gnu.org/bugs/?group=xboard">bugtracker</a> for open and already closed bugs. If you found a new bug, please, file a bug-report either via our bug-related email list or in the <a href="http://savannah.gnu.org/bugs/?group=xboard">bugtracker</a>.

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<p>Please remember that development of XBoard, and GNU in general, is a
volunteer effort, and you also can contribute. For information, please
read <a href="/help/">How to help GNU</a>.</p>


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