🚀 go-pugleaf

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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