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dragon note
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1988-02-16
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4KB
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The program "Dragon 2.1" is a go-playing program which provides both a
human vs. computer and human vs. human playing board. It allows for 19x19
go and 9x9 go. 2 versions of this documentation note, the runnable binary of
the program, and several data files which it uses are included. They have
been combined using StuffIt and then translated using BinHex 4.0. All of the
files should be placed in a folder together for the program to operate.
Dragon 2.1 is state-of-the-art in terms of go-playing-program strength,
having achieved second place in the recent International Computer Go
tournament in Taiwan.
The author, Don-yueh Liu, has provided the runnable object code of the
program to the public, free of charge. It is in the public domain, and may not
be distributed for commercial gain. Please distribute it freely to whomever
you wish. Kaihu Chen obtained the copy for U.S. distribution on a Macintosh
diskette. Since Kaihu does not have a Macintosh, he had to enlist other help
to distribute the program; Mark Goldfain briefly tested the program on
several Macintoshes. It ran on 1 of the 2 Macintosh Pluses and both
Macintosh IIs on which it was tried. We have no idea why the one Mac+
claimed the diskette was empty. We don't know whether the program will
run on a Mac SE, or an older Mac with less than 1 Meg of memory. Mark's
impressions from the brief testing were as follows:
The program has good graphics and plays a challenging game
of go. The core of the program which generates game moves
seems to be in pretty good shape, but a number of the optional
selections are not fully operational. One can either "declare the
game complete" by selecting "Stop", or wait until two passes
occur. (The program is not very quick to decide that it is time to
pass.) Either way, the game just halts, and I have not figured out
how to get it to accurately report either the prisoners that were
removed, or the final score of the game. If you pause it to take
back a move, or just to think, you may not be able to restart the
game. I was able to save a game in progress to a file, but could
not figure out how to start a game from that file - it may only be
a "position archive". Mostly, there is no documentation with the
program at all, which prevents us from figuring such things out.
Kaihu conjectures the program must rank in the same ballpark as Nemesis,
which must mean about 17 kyu, for strength. The source code was not
provided to us. We do not know what the author's intentions are concerning
source code. You might want to write him directly:
Liu. Don-yueh
Department of Computer Science and Information Engineering
National Taiwan University
Taipei, Taiwan, Republic of China
(Mark has sent a letter concerning documentation and source code and will
post any response ...)
If you do not have access to the net, or do not have the ability to decode
the files there, you can get the program on 3.5" Macintosh diskette by
sending either:
(a) $1,
a stamped, self-addressed envelope, and
a blank, formatted diskette,
or (b) $5,
specification of what density of 3.5" diskette, and
your address
to: Mark Goldfain
Department of Computer Science
University of Illinois
1304 West Springfield
Urbana, Illinois 61801
Please note that we (Dan LaLiberte, Mark Goldfain, and Kaihu Chen) are
simply acting as your agent in providing you with a copy of these files. As
such, we cannot accept any responsibility for whether or not the code will
run correctly on your machine, or whether or not it will even run, or for that
matter whether or not it will crash your system, or cause damage to
hardware, software, or data residing on your system. (Etcetera!)
We have no reason to suspect that it would have an ill effect, and
sincerely hope it will run and provide you with a great deal of satisfaction,
but you are not paying for this software, nor any guarantees. This copy from
the net is totally free, and in the cases outlined above, the $1 fee is simply
for the effort of copying and mailing, and the $5 fee is for the same plus to
reimburse for the cost of an envelope and a diskette.