.\" Copyright (c) 1998 Stefan Eggers
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
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.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" $FreeBSD$
.\"
.\" Note: The date here should be updated whenever a non-trivial
.\" change is made to the manual page.
.Dd May 31, 1998
.Dt CRAFTY 6
.Os
.Sh NAME
.Nm crafty
.Nd chess playing and analysis program
.Sh SYNOPSIS
.Nm crafty
.Sh DESCRIPTION
.Nm
is a chess playing and analysis program.  It can optionally use
opening books (available separately) and end game tables.  As a
graphical interface one can use xboard which is available as part of
the FreeBSD ports collection.
.Pp
To make full use of
.Nm
one has to copy books.bin and an opening book (all usually located
under /usr/local/lib/crafty with standard installation on
your system) into ones private directories to allow it to learn during
use.  Note that the installation of the opening books is optional.
.Sh ENVIRONMENT
.Nm
doesn't use any environment variables.
.Sh FILES
.Bl -tag -width ./position.bin -compact
.It Pa ./book.bin
The opening book.
.It Pa ./book.lrn
Human readable version of things learned in openings.
.It Pa ./books.bin
A file with opening information which influences which opening
.Nm
will choose.
.It Pa ./position.bin
Positional information learned.
.It Pa ./position.lrn
Human readable version of things learned in positions.
.El
.Sh HISTORY
The
.Nm
manual page first appeared in
.Fx 2.2 .
.Pp
.Sh AUTHOR
This
manual page was written by
.An Stefan Eggers Aq seggers@semyam.dinoco.de .
.Sh BUGS
None known to the man page author.