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Path: utzoo!lsuc!dave
From: dave@lsuc.UUCP (David Sherman)
Newsgroups: net.chess
Subject: useful things you can do with /usr/games/chess
Message-ID: <513@lsuc.UUCP>
Date: Thu, 14-Mar-85 11:35:30 EST
Article-I.D.: lsuc.513
Posted: Thu Mar 14 11:35:30 1985
Date-Received: Thu, 14-Mar-85 11:59:55 EST
References: <559@astrovax.UUCP> <508@digi-g.UUCP> <512@lsuc.UUCP>
Reply-To: dave@lsuc.UUCP (David Sherman)
Distribution: net
Organization: Law Society of Upper Canada, Toronto
Lines: 19

The UNIX chess program (/usr/games/chess) has some undocumented
commands which have been around since v6 or earlier. One of them
is "manual", which lets you play both sides of the game. It's
useful to see a position. If someone posts a scoresheet in a
notation which "chess" can understand, you can start up an editor, and
	- put each half-move on a separate line
	- stick a blank line between each line (g/./a )
	- insert a line saying "manual" at the top
and fire it off to /usr/games/chess, producing a running
visual play-by-play of the game.

Other interesting commands are "remove" (whether in manual
or game-playing mode), which lets you take back a move;
and "hint", to ask the machine what it would play now.

Dave Sherman
-- 
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