.TH PGN-EXTRACT 1 "May 19, 2013"
pgn-extract - a Portable Game Notation (PGN) extractor
[flags] file.pgn [file.pgn ...]
is a free, open-source program pgn-extract, which is designed to
support the processing, searching and extraction of chess games from
files written in PGN format. There are several ways to specify the
criteria on which to extract: textual move sequences, the position
reached after a sequence of moves, information in the tag fields, and
material balance in the ending. Full ANSI C source and a 32-bit
Windows binary for the program are available under the terms of the
GNU General Public License. The program includes a semantic analyser
which will report errors in game scores and it is also able to detect
duplicate games found in one or more of its input files.
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 default output is in English
Standard Algebraic Notation (SAN), although there is some support for
output in different notations.
Extracted games may be written out either including or excluding
comments, NAGs, and variations. Games may be given ECO classifications
derived from the accompanying file eco.pgn, or a customised version
provided by the user.
Plus, lots of other useful features that have gradually found their
way into what was once a relatively simple program!
.B pgn-extract -h
to get all the options.
A complete description of each option can be found in
pgn-extract was written by David J. Barnes <firstname.lastname@example.org>.
This manual page was written by Peter van Rossum <email@example.com>
and Vincent Legout <firstname.lastname@example.org>, for the Debian GNU/Linux