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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<html>
<head>
	<title>pgn-extract: Portable Game Notation (PGN) Manipulator for Chess Games</title>
	<link rev="made" href="mailto:D.J.Barnes @ kent.ac.uk">
	<meta name="Author" content="David Barnes">
	<meta name="Description"
	      CONTENT="FTP Directory with source of program to manipulate
	      chess games recorded in Portable Game Notation (PGN)
	      format">
	<meta name="Keywords" content="Chess PGN Portable Game Notation
			Database
			pgn-extract">
        <link href="style.css" rel="stylesheet" type="text/css" media="all">
</head>
<body>
<div id="body">

  <div id="banner-wrapper">
    <div id="banner">
<h1 align="center">pgn-extract:<br />A Portable Game Notation (PGN) Manipulator for Chess Games<br />
Version 17-19 by <a href="http://www.cs.kent.ac.uk/~djb/">David J. Barnes</a>
(<a href="https://twitter.com/kentdjb">@kentdjb</a>)<br />
<a href="pgn-extract.xml">
<img src="feed.png" width="25" height="25"></a>
</h1>
    </div>
  </div>

  <div id="page-wrapper">
    <div id="page">
<h2>Introduction</h2>
<p>This is the home page for
the <em>pgn-extract</em> program,
which is a <em>command-line</em> program for manipulating
chess games recorded in the Portable Game Notation (PGN).
<p>A <a href="http://www.cs.kent.ac.uk/people/staff/djb/pgn-extract/help.html">full
description of pgn-extract's functionality</a> is available and included
with the sources.

<p>Here you can find the C source code and win32 binary for the current
version.
pgn-extract compiles and runs under Windows, Linux and Mac OSX.
This program is made available under the terms of the
<a href="ftp://ftp.cs.kent.ac.uk/pub/djb/pgn-extract/COPYING">GNU
General Public License (Version 1).</a>

<h2>Overview</h2>
<p>The program is designed to make it easy to extract selected games from a
PGN format data file based on a wide variety of criteria.
The criteria include:
<ul>
<li><p>textual move sequences;</p></li>
<li><p>the position reached after a sequence of moves;</p></li>
<li><p>information in the tag fields;</p></li>
<li><p>fuzzy board position;</p></li>
<li><p>and material balance in the ending.</p></li>
</ul>
<p>The program includes a semantic analyser which will
report errors in game scores and it is also able to detect duplicate
games found in its input files.

<p>The range of input move formats accepted is fairly wide and includes
recognition of lower-case piece letters for English and upper-case
piece letters for Dutch and German.  The output is normally in English Standard
Algebraic Notation (SAN), but this can be varied.

<p>Extracted games may be written out either including or excluding
comments, NAGs, variations, move numbers, tags and/or results.
Games may be given ECO classifications
derived from the accompanying file eco.pgn, or a customised version
provided by the user.

<p>The program is designed to be relatively memory-friendly, so it
does not retain a game's moves in memory once it has been processed.

<p>Use the <em>--help</em> argument to the program to
get the full lists of arguments.

<h2>New in version 17-19</h2>
<p>These are the major additions in version 17-19:
<ul>
  <li><p>Corrected failure to 'or' together multiple dates with -T and -t.</p></li>
  <li><p>Corrected an error in the generation of hashcodes when a promotion is made.</p></li>
  <li><p>Added --keepbroken to allow broken games to be output.</p></li>
  <li><p>Added --totalplycount to add a plycount tag.</p></li>
  <li><p>Added --addhashcode to add a game hashcode tag.</p></li>
  <li><p>Added --selectonly to select output of only a single game.</p></li>
</ul>

<h2>Available Files</h2>
<p>You can take a copy of the full source and
documentation as either
<a href="ftp://ftp.cs.kent.ac.uk/pub/djb/pgn-extract/pgn-extract-17-19.tgz">pgn-extract-17-19.tgz</a> 
or
<a href="ftp://ftp.cs.kent.ac.uk/pub/djb/pgn-extract/pgn-extract-17-19.zip">pgn-extract-17-19.zip</a>.
Alternatively, <a
href="ftp://ftp.cs.kent.ac.uk/pub/djb/pgn-extract/pgn-extract-17-19.exe">a win32
binary</a> is available.
<p />
    <table border cellpadding=5>
    <tr>
    <td align="center"><b>Name</b></td>
    <td align="center"><b>Description</b></td>
    <td align="center"><b>Size</b></td>
    <td align="center"><b>Date</b></td>
    </tr>

    <tr valign="top">
    <td><a href="ftp://ftp.cs.kent.ac.uk/pub/djb/pgn-extract/pgn-extract-17-19.tgz">pgn-extract-17-19.tgz</a><br>
    <td>GZipped tar file
    of the complete source of version 17-19 of the program.<br>
    Includes <a href="ftp://ftp.cs.kent.ac.uk/pub/djb/pgn-extract/help.html">help.html</a>,
    Makefile for compilation and
    <a href="ftp://ftp.cs.kent.ac.uk/pub/djb/pgn-extract/eco.pgn">eco.pgn</a> file for ECO classification.</td>
    <td align="right">305650 bytes</td><td>Oct 28 2013</td>
    </tr>

    <tr valign="top">
    <td><a href="ftp://ftp.cs.kent.ac.uk/pub/djb/pgn-extract/pgn-extract-17-19.zip">pgn-extract-17-19.zip</a></td>
    <td>Zipped file of the complete source of version 17-19 of the program.<br>
    Includes <a href="ftp://ftp.cs.kent.ac.uk/pub/djb/pgn-extract/help.html">help.html</a>, Makefile for compilation and
    <a href="ftp://ftp.cs.kent.ac.uk/pub/djb/pgn-extract/eco.pgn">eco.pgn</a> file for ECO classification.</td>
    <td align="right">427193 bytes</td><td>Oct 28 2013</td>
    </tr>

    <tr>
    <td><a href="ftp://ftp.cs.kent.ac.uk/pub/djb/pgn-extract/pgn-extract-17-19.exe">pgn-extract-17-19.exe</a></td>
    <td>win32 binary of version 17-19 of the program.</td>
    <td align="right">427193 bytes</td><td>Oct 28 2013</td>
    </tr>

    <tr>
    <td><a href="ftp://ftp.cs.kent.ac.uk/pub/djb/pgn-extract/eco.zip">eco.zip</a></td>
    <td>Zipped version of <a href="ftp://ftp.cs.kent.ac.uk/pub/djb/pgn-extract/eco.pgn">eco.pgn</a>.</td>
    <td align="right">32081 bytes</td><td>May 24 2013</td>
    </tr>

    <tr valign="top">
    <td><a href="ftp://ftp.cs.kent.ac.uk/pub/djb/pgn-extract/eco.pgn">eco.pgn</a></td>
    <td>File of openings with PGN classification.<br>
	This file is already included in the source archives.
    </td>
    <td align="right">254723 bytes</td><td>May 24 2013</td>
    </tr>

    <tr>
    <td><a href="ftp://ftp.cs.kent.ac.uk/pub/djb/pgn-extract/COPYING">COPYING</a></td>
    <td>GNU General Public License (version 1).</td>
    <td align="right">12488 bytes</td><td>Dec 05  1997</td>
    </tr>
    </table>

<h2>Feedback</h2>
<p>Feedback and suggestions for further features are always welcome, although I can't always
promise to undertake significant development work.
<hr>
    </div>
  </div>

  <div id="footer">
<address>
<p>&#169; 1994-2014 David J. Barnes<br />
<a href="http://www.cs.kent.ac.uk/~djb/">My home page</a> at the University of Kent.<br />
<a href="mailto:d.j.barnes@kent.ac.uk">d.j.barnes@kent.ac.uk</a><br />
<a href="http://twitter.com/kentdjb">@kentdjb</a><br />
Last updated: 29th October 2014: version 17-19 released.<br />
</address>
  </div>
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