I would only use it if it is licensed for commercial use.
David
On Fri, 13 Nov 2015 08:39:20 +, Josef Moudrik wrote:
Hello List,
There has been some debate in science about making the research more
reproducible and open. Recently, I have been thinking about making a
standard
Attached is a frisbee go game 9x9 between me and a Chines 5-dan
amateur. 50% chance of playing in the intended spot. When a
connection is required, it is just up to chance who wins the fight.
It's a little silly, but was a lot of fun to play.
David
On Wed, 11 Nov 2015 23:13:51 +0100, "Ingo
I don't have records but I watched three games between Zen and
Dolburam, and in each case Dol Buram won in the middle game fighting by
capturing some large group. In the final of the elimination
tournament the game server crashed wen the game was about 2/3 finished,
so they played another game
The result of the top four single elimination tournament was the same
order as the preliminary round robin.
Ray is quite strong, and only 18 months old. Many Faces played it
twice, in the round robin, and in the final. In the final it was
quite far ahead in the middle game, but missed a cut,
Now there are some friendly games, on fast hardware, one hour each time limit.
Yu BIn 9P is playing Dol Baram with 5 stones. The game is so complex
I can't tell who is winning.
Tang Yi 2P is playing Zen with 5 stones and the game is almost over.
She is losing. Zen won by 12 points.
Many
iroshi Yamashita
- Original Message - From: "David Fotland" <fotl...@smart-games.com>
To: <computer-go@computer-go.org>
Sent: Sunday, November 15, 2015 11:15 AM
Subject: Re: [Computer-go] Mylin Valley The World Computer Weiqi Tournament
Yu Bin won his game against Do
I was thinking reg_genmove. Make the bot support one way to do it to
make the referee simpler.
David
On Thu, 12 Nov 2015 03:22:23 +, Josef Moudrik wrote:
Frisbee go sounds fun.How do you plan to use the GTP protocol to
support this? I think that the randomization should be handled
Yesterday I modified Many Faces to play Frisbee go an played a few
games with some other people at the Beijing Computer go tournament.
It's a very strange game. If there is interest I can make an
installer and make it available for free.
Josef Moudrik is also writing a program.
David
On
Yes. I’m travelling this week, but when I get home I can look for it. I’m not
sure I can find the old source backups to make a gtp version.
David
From: Computer-go [mailto:computer-go-boun...@computer-go.org] On Behalf Of
Álvaro Begué
Sent: Wednesday, January 4, 2017 4:48 PM
To:
Competitive with Alpha-go, one developer, not possible. I do think it is
possible to make a pro level program with one person or a small team. Look at
Deep Zen and Aya for example. I expect I’ll get there (pro level) with Many
Faces as well.
David
From: Computer-go
That's easy enough. Mfog12 trial is a free download and I can provide a
registration code for the computer used for any competition to enable the 12
kyu level. 12 kyu has not full board search, monte carlo or otherwise.
David
-Original Message-
From: Computer-go
I’d go, but I already have a vacation in Europe planned that week. General
advice:
Take a laptop. Arrive a day early to learn your way around and test, and fix
any issues. Bring executables on a flash drive in case your computer dies or
gets lost. Even if you have a setup in the cloud you
Sadly, this is GPL v3, so it's not safe for me to look at it.
David
PS even though Robert's posts are slightly off topic for the AlphaGo
discussion, I respect that he has thought far more deeply than I have about go,
and I support his inclusion in the list.
-Original Message-
From:
The paper describes 20 and 40 block networks, but the section on comparison
says AlphaGo Zero uses 20 blocks. I think your protobuf describes a 40 block
network. That's a factor of two
If you only want pro strength rather than superhuman, you can train for half
their time.
Your time looks
I've been on a forced break from go programming since last August, but I hope
to get back to it soon.
David
-Original Message-
From: Computer-go [mailto:computer-go-boun...@computer-go.org] On Behalf Of
Rémi Coulom
Sent: Tuesday, February 27, 2018 10:14 PM
To:
During the main search, pass is always one of the moves searched, and if is
the best move found, and pass is allowed, it will play a pass. I never
avoid searching pass in the main search since it gives a good lower bound
on the score. If the search returns pass too early, I'll play the second
Shodan players are far, far, from perfect play. Shodan players have a good
understanding of most basic concepts, and can solve simple tactical problems
during a game, but that's about it. I'm 3 Dan, and almost every move I make
is a mistake of some kind. The gap in skill between a shodan and a
How does monte carlo go do with fights that are trivial to evaluate, but
hard to search?
The attached position (I think from Martin Mueller), has many such fights.
If your program can count liberties correctly, it is easy to evaluate and
choose the best move with 1 ply lookahead. If you try to
It's easy to construct problems that any program cannot
handle including
yours.
Of course, but understanding fights like the attached ones is essential to
strong play on 19x19.
You have to understand that Monte Carlo is not great at
tactics,
I do understand this. That's my
It is not what we said. At least it is not what I meant, and
I think it is
true for the others.
I was reacting to the two statements below. I didn't realize that this
opinion was not generally shared by the people developing monte carlo
programs.
I believe that MC will be the only way
What's included in an evaluation? Is each evaluation one random game, or a
set of random games that gives good enough statistics about the value of a
position?
David
On a P4 3.0Ghz mono processor, the number of evaluations per
seconds is in the
order of 4500/s in 9x9, 2500 in 13x13 and
I test on IGS, and I also see a lot of cheating against the computer.
Many Faces does its own scoring and transmits dead stone status. This
prevents people from not indicating their dead stones. Many Faces keeps
track of people who escape without finishing a game and won't accept matches
from
.
Cheers,
David
On 11, Dec 2006, at 7:53 PM, David Fotland wrote:
Hi Don,
Clearly UCT and monte carlo is very well suited to 9x9 go. It
works much
better than the traditional computer go algorithms, and
it is much,
much
simpler.
Do you have any
I suggest you use anchorman. It will be weaker on 19x19, but so will the
other programs.
It lets you get set up quickly.
David
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Don Dailey
Sent: Tuesday, December 12, 2006 10:48 AM
To: computer-go
Maybe not 10,000, but 1,000 yes. The current CPUs are 90 nm or 65 nm
process nodes, and labs know how to scale down to 10 nm or so. That's an
area density increase of 50 to 100.
Look at RAMP,
http://www.eecs.berkeley.edu/BEARS/presentations/06Patterson.ppt a research
project to figure out how
on KGS
(it is 11k at the moment). It is a preliminary version, still
slow and with stupid bugs (no shisho management, which leads
to funny games sometimes :)).
Cheers,
Guillaume
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
David Fotland
There is no fixed relationship between ELO and handicap stones. Stronger
players have less variation in their play, so a handicap stone is worth more
ELO points for a stronger player than a weaker player.
David
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On
Thanks. So it seems that doing as many random games as possible is not the
ideal approach.
In UCT, I suppose the equivalent of the principal variation would be the
path from the root that always visits the child with the highest number of
simulations. When you make a move with 70,000
It looks like most of these games are being won in the opening. Doesn't
mogo have a big UCT opening book? Is it learning from each game it plays as
well?
David
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Don Dailey
Sent: Friday, January 12,
I have a strong blockus program. If anyone wants to set up a server I'll
put it up. Blockus has 4 players, so there is the issue of cooperation
between several players against one other. My implementation is just
alpha-beta iterative deepening, transposition table, etc.
David Fotland
How many simulations per move in the 2300 version? I think you older
version did about 70,000, and your weaker versions do 3000, 5000, or 1.
David
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Sylvain Gelly
Sent: Sunday, January 14, 2007 2:22 AM
light is always a good adagium, see David Fotlands hilarious
compression of a joseki library into 12 bits/move, IIRC ;-)
More like 10 bits per move to store the joseki DAG, moves, pointers, and
good/bad/trick flags. I would never do anything like that now, but back
then the entire go
I would add 4. The program tries to identify good moves, and only tries
moves that it thinks might be good. If it is goal-directed, the good moves
are good for a reason, and if the reason is not satisfied, they are
discarded.
This is the way Many Faces works. It's very similar to 3, but it's
Every go book says that to get better you need to see the big picture :)
The big difference between low kyu and high dan players is seeing the big
picture. Low kyu players are already pretty good at local tactics. If you
read commentaries you will see a lot of waords about direction of play,
I tried a few games against Mogo 9x9 on KGS, and it's not professional
strength, but it is very strong. When I played fast when I was tired it
beat me every time, and when I made a more careful try, I beat it, but it
wasn't easy. I'm AGA 3 Dan, KGS 2 kyu, so it seems to be about my strength
or a
No, humans are much weaker on 9x9 than on 19x19. I'm AGA 3 Dan, and I've
played thousands of 19x19 games, and hundreds of serious 19x19 tournament
games. I've studied thousands of 19x19 professional games, and have had
dozens of my 19x19 games analyzed by pros. I think before I tried playing
practive at 19x19
(and are relatively stronger).
David
-Original Message-
From: Don Dailey [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 11, 2007 8:52 PM
To: David Fotland
Cc: 'computer-go'
Subject: RE: [computer-go] Sylvain's results
On Wed, 2007-04-11 at 17:29 -0700, David
I cannot believe 9x9 is harder than 19x19 and
I don't care how strong the player is who says that - I don't
believe it.
- Don
I don't believe it either :) Sorry for the misunderstanding. I was making
a statement about how strong people are at a pair of games, not a statement
about which
I threw it at Google translation, which is supposed to be the best machine
translator available now, using only Bayesian statistics with no knowledge.
It mangles it, but the meaning comes through. It sounds like an interesting
article. It would be nice to have a good translation.
David
However GTP was way better than what
preceded it and yet even the top programmers believed GMP was
sent by god and anything else was blasphemy.
I have to object to this characterization :) GMP was very good at what is
was designed to do, which was to allow people to play using a 1200 baud
minute per
player time limits and some overtime.
- Don
-David Fotland
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http://www.computer-go.org/mailman/listinfo/computer-go/
I was there in 2005, and KCC Igo and Go Intellect were there.
http://www.computer-go.jp/gifu2005/English/
Ogaki is very nice, but a little tricky to get to by train.
I ripped up the full board search and rewrote it last year so I'll only go
if I can get it stable and stronger by then.
David
I also agree that 9x9 doesn't compare to 19x19. I disagree that it's
not interesting. It would be uninteresting if, for instance, someone
like you were just as good at the top pro's at 9x9. It stops being
interested when it can be mastered.If the top players can always
play a
The list price in Japan is closer to $100 than $39.
This is my Japanese product (AI Igo version 15):
http://www.ifour.co.jp/product/aiigo15/ and you can see it lists for 13,440
yen (about $110). The other strong programs have similar prices. His
royalty is more than $1 per copy.
Since Go4++
The biggest difference in over the board club play is the scoring procedure.
in territory scoring, prisoners are kept separate, and at the end of the
game prisoners are put back in enemy territory and regions are rearranged to
rectangles and counter. Counting is pretty fast, and the board
are different rule sets?
David Fotland wrote:
I'm curious... How does the rule sets affect how people
play the game
of go?
Different scoring requires my strategy to be adapted.
Different counting
leads to different kinds of defensive methods against accidental or
cheating errors.
I
Many Faces does not use null move, but does extensive caching of life and
death and other tactical results.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of terry mcintyre
Sent: Tuesday, October 02, 2007 9:21 AM
To: computer-go
Subject: Re: [computer-go]
article by Deep Blue creator
David Fotland: [EMAIL PROTECTED]:
Many Faces does not use null move, but does extensive
caching of life
and death and other tactical results.
The problem of such caching scheme is when and how programs can make
correctly the cache be dirty (ie, invalid
I agree. Computer go needs someone who will play large tournaments are
publish results. I'm also curious how Many Faces would do against Mogo on
19x19 in a long match. Mogo is much better at endgames, and is much
greedier, but Many Faces is much stronger tactically. Certainly if there
were
AM
To: computer-go
Subject: Re: [computer-go] best approach forward
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
David Fotland wrote:
I agree. Computer go needs someone who will play large
tournaments are
publish results. I'm also curious how Many Faces would do against
Mogo
that this could be settled.
I'll go ahead and help Chris Fant set up a the server which
he will administer.
Meanwhile, can you experiment with the 9x9 server just to see
if you can
get it working on CGOS?You can use any anonymous name.
- - Don
David Fotland wrote:
It's because
] Former Deep Blue Research working on Go
On 10/11/07, David Fotland [EMAIL PROTECTED] wrote:
But the only way to settle this is to do some experiments. I could
certainly be wrong. If we have a mogo-many faces match on
19x19 cgos,
and we also have them play for ratings against people
I looked at all the games and scored them with Many Faces and I agree with
the result, 14 wins, 5 losses, and one unfinished early. It looks like
Crazy stone is stronger than any traditional program at 19x19.
David
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
10 minutes per side should be enough for Many Faces 11. Version 11 has
fixed search limits, and only does time management if it runs low on time.
It can usually play a game in 10 minutes on the computer I'll use. It will
be slower against Mogo since the games are longer and there might me more
I just tried it, but I can't connect.
David
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Christoph Birk
Sent: Tuesday, October 23, 2007 1:16 PM
To: [EMAIL PROTECTED]; computer-go
Subject: Re: [computer-go] 19x19 CGOS
On Tue, 23 Oct 2007,
GMP (go modem protocol) was invented for direct computer to computer play
using a 300 baud modem, before the internet existed. It was used in
tournaments since it was easy to connect up serial ports to emulate modems.
GTP solves a completely different problem, of go engines communicating with
a
There is a standard file format like PGN for Go, that uses standard go
notation. It's the Ishi Press Go Format used by the original Many Faces of
go, and still supported by Many Faces. You might still find files out there
with a .go extension. It was invented before sgf, but the go commuinity
To: computer-go
Subject: Re: [computer-go] XML alternatives to SGF
On 10/25/07, David Fotland [EMAIL PROTECTED] wrote:
I think Anders supports using Korshelt notation in sgf (E4, etc, with no I).
Who or what is Anders?
___
computer-go mailing
most computer-computer tournaments have used 1 hour per side, and did 5 or 6
rounds over 1 1/2 days.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
David Fotland
Sent: Thursday, October 25, 2007 1:04 PM
To: 'computer-go'
Subject: RE: [computer
I puton Many Faces version 11, but it might not be playing at fill strength.
It ouwld be nice if I can click on a game to see the sgf record. right now
it gives an error.
David
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Olivier Teytaud
Sent:
Are you able to watch the games in the viewer ok?I am watching one
of your games right now.
- Don
David Fotland wrote:
I puton Many Faces version 11, but it might not be playing at fill
strength. It ouwld be nice if I can click on a game to see the sgf
record. right now
you view a specific game number:
cgosview.exe cgos.lri.fr 6919 777
(view game 777)
- Don
David Fotland wrote:
no, I never got the viewer to work for me.
I was too conservative with time control so Many Faces is
only playing
at level 8 (of 10), and finishing its
-[ snip ]-
- Don
David Fotland wrote:
I puton Many Faces version 11, but it might not be playing at fill
strength. It ouwld be nice if I can click on a game to see the sgf
record. right now it gives an error.
David
-Original Message-
From
How about leaving gnugo 10 at 1800 and let gungo level 0 float for a while.
See what rating gnugo level 0 gets, then lock it there as an anchor.
If these two programs aren't 600 points apart and you anchor them that way
it will prevent the rating system from stabilizing.
David
-Original
] On Behalf Of
David Fotland
Sent: Friday, October 26, 2007 6:13 PM
To: [EMAIL PROTECTED]; 'computer-go'
Subject: RE: [computer-go] 19x19 CGOS
I puton Many Faces version 11, but it might not be playing at
fill strength. It ouwld be nice if I can click on a game to
see the sgf record. right
ver 11 does 1 ply search with quiescence so there is no way to crank it up.
Ver 12 uses full board alpha beta, but it's too buggy right now to put on
cgos. if this server stays up for a while, I'll use it for testing of ver
12.
David
-Original Message-
From: [EMAIL PROTECTED]
PROTECTED] On Behalf Of
Christoph Birk
Sent: Saturday, October 27, 2007 12:07 PM
To: computer-go
Subject: Re: [computer-go] 19x19 CGOS
On Oct 27, 2007, at 9:53 AM, David Fotland wrote:
At 10 minute time limits Many Faces rated over 2000 and was top of
the list.
At 30 minutes it's 1650
:)
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Christoph Birk
Sent: Saturday, October 27, 2007 3:51 PM
To: computer-go
Subject: Re: [computer-go] 19x19 CGOS
On Oct 27, 2007, at 3:17 PM, David Fotland wrote:
NO, it's because gnugo got stronger
Of
Christoph Birk
Sent: Saturday, October 27, 2007 4:50 PM
To: computer-go
Subject: Re: [computer-go] 19x19 CGOS
On Oct 27, 2007, at 3:59 PM, David Fotland wrote:
Because gnugo has time control and when time is short it adjusts
the level
down between moves. I think with th 30 minute
Would anyone be interested in a highly configurable version 11 with gtp
interface?
Version 11 has a set of parameters that control the searching that I can
easily read from a file.
/* LEVELS:1 2 3 4 5 6 7 8 9 10 */
int maxmoves[NUMLEVELS] = /* maximum number of moves to try on
I added a copy of Many Faces of Go running at level 1 (with almost no
search) to add some variety for the weak programs. This version looks at
the top 2 suggestions from the move generator, does a 1 ply search without
quiescence, does a full board evaluation for each, and picks the best one.
Late
I'm working on MFGO 12 and I'd like 30 minutes so I can test against a
variety of programs at tournament time limits.
I don't need hundreds of games to tune, since my program is knowledge based.
I'm not just changing parameters and seeing what happens. I'm looking for
bad moves and adding
Oops, I forgot to tell it to randomize. I'll restart it with random turned
on.
David
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Rémi Coulom
Sent: Sunday, October 28, 2007 1:39 PM
To: computer-go
Subject: Re: [computer-go] 19x19 CGOS (CS vs
mfgo-11 hung last night. It never responded to a genmove request. The
client was still running, but the 19x19 web page says mfgo-11 is not
conencted.
I killed the client, and restarted it, bu the server says: Error you are
already logged on. Closing connection when the client responds to
It looks like CGOS 19x19 is hung. The game in progress are not changing,
and the cgos viewer can't get the moves of the current games. When I
connect I get a message that Im connected, but no messages about the time of
the next round.
Can someone restart it please?
David
Ian Osgood wrote:
What boggles my mind is the lack of participation in these events
from
commercial players like KCC Igo, Haruka, Go4++, Handtalk, and Many
Faces.
It's because these programs will get killed by the top Monte Carlo
programs. It's risky competing when your reputation is
are
as strong as professional Dan players.
At 19x19 their strength is much less clear. I don't think they are quite to
amateur Dan yet.
David Fotland
-Original Message-
From: [EMAIL PROTECTED] [mailto:computer-go-
[EMAIL PROTECTED] On Behalf Of Robert Jasiek
Sent: Tuesday, December 04, 2007 7
programs participated. Typically 5 to 7
programs compete.
.
ENTERING THE CONTEST:
.
You must register for the US Go Congress to enter the Computer Go
Competition.
Please contact David Fotland as soon as possible if you plan to participate.
There is no penalty for withdrawing from participation
is not go, and is only used in the
real world to play the first couple of games with beginners to teach them
the rules :) So how about giving 19x19 a try?
-David Fotland
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http://www.computer-go.org
It's a bug. If the move generator returns no moves at an internal node in
the main search, it passes. Mogo keeps playing on after there are no points
left. During the search after the forced response to mogo's move, there are
no moves generated. I dont allow a pass in an internal node, so the
It looks like the server is down again. It's too bad since there were so
many strong programs connected.
I hope it comes back up soon.
David
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computer-go@computer-go.org
I think AGA and KGS are pretty close. AGA is a real rating system in that
ratings are earned in sanctioned tournaments so they are not disrupted by
casual games. http://www.usgo.org/ratings/default.html
European ratings (also from tournaments) are perhaps 2 stones tougher. Many
think they
This is awful for such a simple problem. Many Faces' static evaluation
function sees that the white group is unsettled, and
the life/death search finds the B2 killing move in one node (since after B2
the group is dead with no further search, and the move generator returns B2
as the first
Many Faces' life and death search is best first and probability based, but I
don't use UCT to select moves. I select the move that has the highest
probability of changing the value of the root (from success to fail or vice
versa). I don't use MC to evaluate the endpoints. I look forward down
: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jason House
Sent: Thursday, December 13, 2007 5:50 AM
To: computer-go
Subject: Re: [computer-go] Non-global UCT
On Dec 12, 2007 10:19 PM, David Fotland [EMAIL PROTECTED] wrote:
Many Faces' life and death search is best first
Many faces still finds the correct move on the first trial, but now it takes
74 nodes to prove the first move works, rather than one node.
It looks at a total of 114 nodes to prove that no other move works.
David
-Original Message-
From: [EMAIL PROTECTED] [mailto:computer-go-
[EMAIL
It looks like CGOS 19x19 is down again.
-David
-Original Message-
From: [EMAIL PROTECTED] [mailto:computer-go-
[EMAIL PROTECTED] On Behalf Of Don Dailey
Sent: Thursday, December 13, 2007 9:47 AM
To: Don Dailey
Cc: computer-go
Subject: Re: [computer-go] Where and How to Test the
Isn't Greenpeep an alpha-beta searcher, not UCT/MC?
Since Go ranks are based an handicap stones, and 100 ELO points implies a
particular winning percentage, it would be an unlikely coincidence if 1 rank
is 100 ELO points. Any web site that claims this must be wrong :) and
should have little
I think Martin Mueller published an improvement to benson's algorithm that
is also proved correct.
David
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of John Fan
Sent: Thursday, December 13, 2007 1:36 PM
To: computer-go
Subject: Re: [computer-go] MC-UCT and tactical
From: Jason House [EMAIL PROTECTED]
I've done some dabbling (thought experiments) with how I'd like to cache
search results and I'm not yet happy with any of them. Not taking into
account miai and such logic could lead to excessive storage bloat. I'd
love to enter a discussion talking
Many Faces does on-line learning of Fuseki, Joseki, and half-board patterns.
David
-Original Message-
From: [EMAIL PROTECTED] [mailto:computer-go-
[EMAIL PROTECTED] On Behalf Of Gunnar Farnebäck
Sent: Friday, December 14, 2007 1:28 PM
To: computer-go
Subject: Re: [computer-go] Hall
When MF evaluates a position it does local tactical search to see if blocks
of stones can be captured. It does this for every block with 3 or fewer
liberties, and for points at the diagonals of eyes, and to see if
connections are solid by trying to cut and doing a search to see if the
cutting
Of Chris Fant
Sent: Sunday, December 16, 2007 7:23 PM
To: computer-go
Subject: Re: [computer-go] MC-UCT and tactical information
On Dec 14, 2007 2:29 PM, David Fotland [EMAIL PROTECTED] wrote:
Many Faces does life and death search at the root before the main
search.
It typically allocates
I only use 2 random numbers per point, one for black and one for white. I
xor another random number indicating the side to move.
David
_
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Álvaro Begué
Sent: Wednesday, December 19, 2007 4:15 AM
To: computer-go
Subject:
Hi Don,
I never heard of this technique before. Are there any more you can share?
ManyFaces12 uses:
-Iterative deepening, with hash table
-Zero-window search (beta is alpha+1, and research when fail high)
-Null move (reduce depth by one, only try null when beta is not infinite,
only one null
these various moves is usually only a few points.
David Fotland wrote:
Hi Don,
I never heard of this technique before. Are there any more you can share?
Since you are using hash tables, I assume you are aware of ETC
(Enhanced Transposition Cutoffs.) ?
For anyone unaware - it works like
The styles of CS (CS-9-17-10k-1CPU), MFGO (mfgo12exp-15), and GNUGO
(gnugo3.7.10_10) are different, and it's generating some odd results.
Many Faces beats GnuGo 70%. There are not many games, but this is
consistent with over 100 test games I've run.
CS beats GnuGo 55%. Over 100 games played.
CS
I think there are two reasons there are not more programs on 19x19 CGOS:
1) The anchor, Gnugo, is quite strong, Many Faces 12 is stronger, and
CrazyStone is much stronger. Since the programs playing are so strong, it
is demoralizing for a new program to lose so often. Without weaker
Then 15 minutes should be good. We want the anchor to play at the same
strength as before.
David
-Original Message-
From: [EMAIL PROTECTED] [mailto:computer-go-
[EMAIL PROTECTED] On Behalf Of Alain Baeckeroot
Sent: Tuesday, January 08, 2008 12:40 PM
To: computer-go
Subject: Re:
.
- Don
David Fotland wrote:
I think there are two reasons there are not more programs on 19x19
CGOS:
1) The anchor, Gnugo, is quite strong, Many Faces 12 is stronger, and
CrazyStone is much stronger. Since the programs playing are so
strong, it
is demoralizing for a new program
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