Re: [Computer-go] *****SPAM***** Re: AlphaGo won first game!

[David Fotland]

Yes, I think the programs will have similar biases.  In this game Sedol had 
some groups that were alive, but needed correct responses to stay alive.  Even 
though the pro's stones won’t die, the playouts sometimes manage to kill them.  
This makes the program think it is more ahead than it actually is.  AlphaGo 
should be much more accurate because it has a value network and can replay 
sequences from the mains search.

David

> 
> I.e. is it fair to say that other computer programs will appreciate and
> understand the computer's moves better than the human's moves, so saying
> it is ahead is to be expected? (confirmation bias)
> 
> Darren


___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] *****SPAM***** Re: AlphaGo won first game!

[David Fotland]

I predicted Sedol would be shocked.  I'm still routing for Sedol.  From 
Scientific American interview...

Schaeffer and Fotland still predict Sedol will win the match. “I think the pro 
will win,” Fotland says, “But I think the pro will be shocked at how strong the 
program is.”

> 
> P.S. Lee Sedol says he was shocked, and never expected to lose, even
> when he was behind. I wonder if he did any special preparation for this
> match? (E.g. playing handicap games against other strong MCTS program,
> to appreciate how they behave when they have a lead.)
> 
> 
> ___
> Computer-go mailing list
> Computer-go@computer-go.org
> http://computer-go.org/mailman/listinfo/computer-go

___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[Hideki Kato]

Congratulations, Aja and David!  Very remarkable win!

Pasky,

It's too early to conclude any, I think, because no records 
of losing games have been published, ie., no weakpoints of 
AlphaGo are open.  I believe that the essential problems which 
come from current MCTS (bottom-up) framework, such as solving 
complex semeai's and double-ko's, aren't solved yet.

Hideki

Petr Baudis: <20160309171109.gu12...@machine.or.cz>: 
>  Hi!

>

>On Wed, Mar 09, 2016 at 04:43:23PM +0900, Hiroshi Yamashita wrote:

>> AlphaGo won 1st game against Lee Sedol!

>

>  Well, I have to eat my past words - of course, there are still four

>games to go, but the first round does not look like a lucky win at all!

>

>  Huge congratulations to the AlphaGo team, you have done truly amazing

>work, with potential to spearhead a lot of further advances in AI in

>general!  It does seem to me that you must have made a lot of progress

>since the Nature paper though - is that impression correct?

>

>  Do you have some more surprising breakthroughs and techniques in store

>for us, or was the progress mainly incremental, furthering the training

>etc.?

>

>

>  By the way, there is a short snippet in the paper that maybe many

>people overlooked (including me on the very first read!):

>

>>   We introduce a new technique that caches all moves from the search

>> tree and then plays similar moves during rollouts; a generalisation of

>> the last good reply heuristic. At every step of the tree traversal, the

>> most probable action is inserted into a hash table, along with the

>> 3 × 3 pattern context (colour, liberty and stone counts) around both the

>> previous move and the current move. At each step of the rollout, the

>> pattern context is matched against the hash table; if a match is found

>> then the stored move is played with high probability.

>

>  This looks like it might overcome a lot of weaknesses re semeai etc.,

>enabling the coveted (by me) information flow from tree to playouts, if

>you made this to work well (it's similar to my "liberty maps" attempts,

>which always failed though - I tried to encode a larger context, which

>maybe wasn't good idea).

>

>  Would you say this improvement is important to AlphaGo's playing

>strength (or its scaling), or merely a minor tweak?

>

>

>  Thanks,

>

>-- 

>   Petr Baudis

>   If you have good ideas, good data and fast computers,

>   you can do almost anything. -- Geoffrey Hinton

>___

>Computer-go mailing list

>Computer-go@computer-go.org

>http://computer-go.org/mailman/listinfo/computer-go
-- 
Hideki Kato 
___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] longest 3x3 game

[John Tromp]

dear Go researchers,

>> > Found a 582 move 3x3 game...
>> Can you give us sgf?
>
> I took the effort of trying to format the 582 game in a more insightful way.
> I ended up with lines of positions that mostly add stones, only starting
> a new line when a capture of more than 1 stone left at most 4 stones:
> The result is attached. I think there is clearly
> room for improvement, i.e. make this game much longer.

Gunnar Farnebäck took up my challenge and took a giant leap from 582
to 1808 moves, using a UCT oriented search with maximum playout length
as the score.

That led me to implement a so-called beam search,
in which we keep a set of W (the beam width) games at the same depth
D, and for each one, play some number B (branching factor) of random
playouts.
We then keep the W longest of these W*B playouts, truncated at depth D+1,
and repeat the process, until no more playouts are possible (all moves
being superko violations).

I ran a dozen beam searches with W=16384 and B=1024, and the best one
reached a record 2900 moves. See the attached sgf.

It's quite mesmerizing to load this sgf in your favorite go editor and just
cycle through all the moves at a rapid pace...

The rules should really be TT (Tromp/Taylor) instead of NZ (New Zealand),
but unfortunately Cgoban doesn't support TT.

regards,
-John


2900.sgf
Description: application/go-sgf
___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[wing]

In my opinion, the thing that programs do worst is ko.
Lee did not play any kos, except one minor irrelevant
one in the lower left. This game was so simple that
the program could accurately model the whole board.

If Lee wants to win, he needs to start 2 or 3
simultaneous kos.

Michael Wing

Congratulations, AlphaGo and team. And by resignation! That's 
fantastic!


Anyone know where the tipping point was? Did Sedol get the end game
order just slightly off and AlphaGo took advantage? Or was their an
earlier poor move by Sedol and/or surprising (and good) move by
AlphaGo? I'm WAY too weak a player to even make stupid guesses. Any
links to in depth analysis would be greatly appreciated!

On Wed, Mar 9, 2016 at 1:46 AM, René van de Veerdonk
 wrote:


wow .. congrats to the AlphaGo team!!

On Tue, Mar 8, 2016 at 11:43 PM, Hiroshi Yamashita 
 wrote:



AlphaGo won 1st game against Lee Sedol!

Hiroshi Yamashita

___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go [1]


___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go [1]




Links:
--
[1] http://computer-go.org/mailman/listinfo/computer-go

___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go


___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[valkyria]

Hi!

I think the technique of hashing move pairs from the search tree and 
reuse them in
the playouts if the context matches, could plausibly be the major 
improvement of Alphago that

we witnessed today.

Another thing I noticed is that Alphago does not use any statistics from 
the playouts other than wins and losses.
I think that is a improvement because it removes biases that might make 
the program weak in certain situations.


On the other hand using the powerful move prediction accuracy from the 
tree search and reuse that information in
playouts could really solve a lot of problems. In the way I see it 
Alphago injects go knowledge into the playouts fro mthe search tree.
Traditional monte carlo programs would do the opposite. Add a lot of 
knowledge to playouts and then try to squeeze

out as much statistics as possible.

Also the clever thing is that the playouts get fed knowledge from both 
offline and online sources. When the search starts
the move ordering of the neural networks will help playouts with 
suggestion of good shape moves. But as more and more
local situations are read out somewhere in the search tree, the playouts 
will pick up more and more strong moves from the hashtable.


By the way I will start experiments with this soon in my new program!... 
:-)


Best
Magnus Persson

On 2016-03-09 18:11, Petr Baudis wrote:

Hi!

On Wed, Mar 09, 2016 at 04:43:23PM +0900, Hiroshi Yamashita wrote:

AlphaGo won 1st game against Lee Sedol!


  Well, I have to eat my past words - of course, there are still four
games to go, but the first round does not look like a lucky win at all!

  Huge congratulations to the AlphaGo team, you have done truly amazing
work, with potential to spearhead a lot of further advances in AI in
general!  It does seem to me that you must have made a lot of progress
since the Nature paper though - is that impression correct?

  Do you have some more surprising breakthroughs and techniques in 
store

for us, or was the progress mainly incremental, furthering the training
etc.?


  By the way, there is a short snippet in the paper that maybe many
people overlooked (including me on the very first read!):


  We introduce a new technique that caches all moves from the search
tree and then plays similar moves during rollouts; a generalisation of
the last good reply heuristic. At every step of the tree traversal, 
the

most probable action is inserted into a hash table, along with the
3 × 3 pattern context (colour, liberty and stone counts) around both 
the

previous move and the current move. At each step of the rollout, the
pattern context is matched against the hash table; if a match is found
then the stored move is played with high probability.


  This looks like it might overcome a lot of weaknesses re semeai etc.,
enabling the coveted (by me) information flow from tree to playouts, if
you made this to work well (it's similar to my "liberty maps" attempts,
which always failed though - I tried to encode a larger context, which
maybe wasn't good idea).

  Would you say this improvement is important to AlphaGo's playing
strength (or its scaling), or merely a minor tweak?


  Thanks,


___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[Petr Baudis]

  Hi!

On Wed, Mar 09, 2016 at 04:43:23PM +0900, Hiroshi Yamashita wrote:
> AlphaGo won 1st game against Lee Sedol!

  Well, I have to eat my past words - of course, there are still four
games to go, but the first round does not look like a lucky win at all!

  Huge congratulations to the AlphaGo team, you have done truly amazing
work, with potential to spearhead a lot of further advances in AI in
general!  It does seem to me that you must have made a lot of progress
since the Nature paper though - is that impression correct?

  Do you have some more surprising breakthroughs and techniques in store
for us, or was the progress mainly incremental, furthering the training
etc.?


  By the way, there is a short snippet in the paper that maybe many
people overlooked (including me on the very first read!):

>   We introduce a new technique that caches all moves from the search
> tree and then plays similar moves during rollouts; a generalisation of
> the last good reply heuristic. At every step of the tree traversal, the
> most probable action is inserted into a hash table, along with the
> 3 × 3 pattern context (colour, liberty and stone counts) around both the
> previous move and the current move. At each step of the rollout, the
> pattern context is matched against the hash table; if a match is found
> then the stored move is played with high probability.

  This looks like it might overcome a lot of weaknesses re semeai etc.,
enabling the coveted (by me) information flow from tree to playouts, if
you made this to work well (it's similar to my "liberty maps" attempts,
which always failed though - I tried to encode a larger context, which
maybe wasn't good idea).

  Would you say this improvement is important to AlphaGo's playing
strength (or its scaling), or merely a minor tweak?


  Thanks,

-- 
Petr Baudis
If you have good ideas, good data and fast computers,
you can do almost anything. -- Geoffrey Hinton
___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[Gonçalo Mendes Ferreira]

You may also want to check out AGA's commentary by Andrew Jackson and
Myungwan Kim. They don't run out of magnetic stones.

https://www.youtube.com/watch?v=YZPKR7HzM_s

On 09/03/2016 16:13, Richard Lorentz wrote:
> I found Michael Redmond's commentary very good. Helped a weak player
> like me understand what was going on, but occasionally went over my
> head, which I'm sure others appreciated. He came across as a class act.
> 
> His partner, on the other hand, (I forget his name) was more of a
> hindrance to the presentation than anything. Towards the end of the game
> I found him downright annoying.
> 
> -Richard
> 
> 
> 
___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[Richard Lorentz]

I found Michael Redmond's commentary very good. Helped a weak player 
like me understand what was going on, but occasionally went over my 
head, which I'm sure others appreciated. He came across as a class act.


His partner, on the other hand, (I forget his name) was more of a 
hindrance to the presentation than anything. Towards the end of the game 
I found him downright annoying.


-Richard



On 03/09/2016 05:36 AM, Xavier Combelle wrote:
This comment should be very good, it was done by a 9 dan pro, the top 
rank in go.




2016-03-09 9:27 GMT+01:00 Sergey Nikolenko >:


Everybody here probably knows it, but just in case -- there's a
commented broadcast uploaded here:
http://www.youtube.com/watch?v=vFr3K2DORc8


I don't play well enough to understand how good the commentary is,
though.

With best regards,
Sergey Nikolenko.



___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[Hiroshi Yamashita]

Aya also thought AlphaGo was ahead 55% - 65% most of game.
But it is because Aya thought Black N-18 group is 65% alive at move 75.
This Black must live 100%. So I think MCTS tend to think White is ahead.
I'm curious whether AlphaGo understands this group is over 80% alive.

Thanks,
Hiroshi Yamashita

- Original Message - 
From: ""Ingo Althöfer"" <3-hirn-ver...@gmx.de>

To: 
Sent: Wednesday, March 09, 2016 7:01 PM
Subject: Re: [Computer-go] AlphaGo won first game!



Congrats to the AlphaGo team also from me!


Von: "David Fotland" 

Many Faces thought alpha go was ahead most of the game.


Similar with CrazyStone. After move 26 CS gave 56 % for AlphaGo
and never went below this value. Soon later it were 60+ %, and
never went lower, too.

Ingo.
___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go 


___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[Xavier Combelle]

This comment should be very good, it was done by a 9 dan pro, the top rank
in go.



2016-03-09 9:27 GMT+01:00 Sergey Nikolenko :

> Everybody here probably knows it, but just in case -- there's a
> commented broadcast uploaded here:
> http://www.youtube.com/watch?v=vFr3K2DORc8
> I don't play well enough to understand how good the commentary is, though.
>
> With best regards,
> Sergey Nikolenko.
>
>
> On Wed, Mar 9, 2016 at 10:55 AM, Marc Landgraf 
> wrote:
> > It was pointed out by Lee Sedol after the game and Kim Myungwan during
> > the game, that Q5 should have been better at R4. I would say this was
> > the final stage of the middle game. The result from the game left Lee
> > Sedol with an unwinnable endgame. And "by resignation" is meaningless
> > here. It is just a matter of personal preference if pros resign heir
> > close games, even if their are lost by 0.5 or if they decide to
> > resign. In this game most counts had AlphaGo 3-6 points ahead.
> >
> > 2016-03-09 8:49 GMT+01:00 Jim O'Flaherty :
> >> Congratulations, AlphaGo and team. And by resignation! That's fantastic!
> >>
> >> Anyone know where the tipping point was? Did Sedol get the end game
> order
> >> just slightly off and AlphaGo took advantage? Or was their an earlier
> poor
> >> move by Sedol and/or surprising (and good) move by AlphaGo? I'm WAY too
> weak
> >> a player to even make stupid guesses. Any links to in depth analysis
> would
> >> be greatly appreciated!
> >>
> >> On Wed, Mar 9, 2016 at 1:46 AM, René van de Veerdonk
> >>  wrote:
> >>>
> >>> wow .. congrats to the AlphaGo team!!
> >>>
> >>> On Tue, Mar 8, 2016 at 11:43 PM, Hiroshi Yamashita 
> >>> wrote:
> 
>  AlphaGo won 1st game against Lee Sedol!
> 
>  Hiroshi Yamashita
> 
>  ___
>  Computer-go mailing list
>  Computer-go@computer-go.org
>  http://computer-go.org/mailman/listinfo/computer-go
> >>>
> >>>
> >>>
> >>> ___
> >>> Computer-go mailing list
> >>> Computer-go@computer-go.org
> >>> http://computer-go.org/mailman/listinfo/computer-go
> >>
> >>
> >>
> >> ___
> >> Computer-go mailing list
> >> Computer-go@computer-go.org
> >> http://computer-go.org/mailman/listinfo/computer-go
> > ___
> > Computer-go mailing list
> > Computer-go@computer-go.org
> > http://computer-go.org/mailman/listinfo/computer-go
> ___
> Computer-go mailing list
> Computer-go@computer-go.org
> http://computer-go.org/mailman/listinfo/computer-go
>
___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[Xavier Combelle]

Congrats to Aja and alphago team

2016-03-09 8:43 GMT+01:00 Hiroshi Yamashita :

> AlphaGo won 1st game against Lee Sedol!
>
> Hiroshi Yamashita
>
> ___
> Computer-go mailing list
> Computer-go@computer-go.org
> http://computer-go.org/mailman/listinfo/computer-go
___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[Olivier Teytaud]

Congratulations to AlphaGo people!

Are there strong humans who have an opinion, on whether this advantage at
move 26
is real ?

In pro games, does it happen often that there is a clear advantage at move
26 ?




-- 
=
"I will never sign a document with logos in black & white." A. Einstein
Olivier Teytaud, olivier.teyt...@inria.fr, http://www.slideshare.net/teytaud
___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[Darren Cook]

Wow - didn't expect that. Congratulations to the AlphaGo team!

Ingo wrote:
> Similar with CrazyStone. After move 26 CS gave 56 % for AlphaGo
> and never went below this value. Soon later it were 60+ %, and
> never went lower, too.

Did it show jumps at some of the key moves the human experts thought
were decisive? (E.g. white 80, then 84-88 as poor, then either black 119
or black 123 as the losing move):
  https://gogameguru.com/alphago-defeats-lee-sedol-game-1/

(I guess the "reversal" at white 136 was just an MCTS program knowing it
is ahead, and playing for probability, not winning margin.)

I.e. is it fair to say that other computer programs will appreciate and
understand the computer's moves better than the human's moves, so saying
it is ahead is to be expected? (confirmation bias)

Darren

P.S. Lee Sedol says he was shocked, and never expected to lose, even
when he was behind. I wonder if he did any special preparation for this
match? (E.g. playing handicap games against other strong MCTS program,
to appreciate how they behave when they have a lead.)


___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[Ingo Althöfer]

Congrats to the AlphaGo team also from me!
 

Von: "David Fotland" 
> Many Faces thought alpha go was ahead most of the game.  

Similar with CrazyStone. After move 26 CS gave 56 % for AlphaGo
and never went below this value. Soon later it were 60+ %, and
never went lower, too.

Ingo.
___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[Julian Schrittwieser]

As Demis said during the press conference, it's roughly the same amount of
hardware.
On Mar 9, 2016 17:56, "Marc Landgraf"  wrote:

> Btw, is there any information on what hardware AlphaGo is running. And
> how does it compare to the version used against Fan Hui?
>
> 2016-03-09 9:31 GMT+01:00 David Fotland :
> > Many Faces thought alpha go was ahead most of the game.  It looked to me
> > like the turning point was when Alphago cut in the center then gave up
> the
> > two cutting stones for gains on both sides (but not so strong…).
> >
> >
> >
> > Congratulations Aja!
> >
> >
> >
> > I watched it at Google in Mountain View with about 100 people.
> >
> >
> >
> > David
> >
> >
> >
> > From: Computer-go [mailto:computer-go-boun...@computer-go.org] On
> Behalf Of
> > Jim O'Flaherty
> > Sent: Tuesday, March 08, 2016 11:50 PM
> > To: computer-go@computer-go.org
> > Subject: Re: [Computer-go] AlphaGo won first game!
> >
> >
> >
> > Congratulations, AlphaGo and team. And by resignation! That's fantastic!
> >
> >
> >
> > Anyone know where the tipping point was? Did Sedol get the end game order
> > just slightly off and AlphaGo took advantage? Or was their an earlier
> poor
> > move by Sedol and/or surprising (and good) move by AlphaGo? I'm WAY too
> weak
> > a player to even make stupid guesses. Any links to in depth analysis
> would
> > be greatly appreciated!
> >
> >
> >
> > On Wed, Mar 9, 2016 at 1:46 AM, René van de Veerdonk
> >  wrote:
> >
> > wow .. congrats to the AlphaGo team!!
> >
> >
> >
> > On Tue, Mar 8, 2016 at 11:43 PM, Hiroshi Yamashita 
> wrote:
> >
> > AlphaGo won 1st game against Lee Sedol!
> >
> > Hiroshi Yamashita
> >
> > ___
> > Computer-go mailing list
> > Computer-go@computer-go.org
> > http://computer-go.org/mailman/listinfo/computer-go
> >
> >
> >
> >
> > ___
> > Computer-go mailing list
> > Computer-go@computer-go.org
> > http://computer-go.org/mailman/listinfo/computer-go
> >
> >
> >
> >
> > ___
> > Computer-go mailing list
> > Computer-go@computer-go.org
> > http://computer-go.org/mailman/listinfo/computer-go
> ___
> Computer-go mailing list
> Computer-go@computer-go.org
> http://computer-go.org/mailman/listinfo/computer-go
___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[Marc Landgraf]

Btw, is there any information on what hardware AlphaGo is running. And
how does it compare to the version used against Fan Hui?

2016-03-09 9:31 GMT+01:00 David Fotland :
> Many Faces thought alpha go was ahead most of the game.  It looked to me
> like the turning point was when Alphago cut in the center then gave up the
> two cutting stones for gains on both sides (but not so strong…).
>
>
>
> Congratulations Aja!
>
>
>
> I watched it at Google in Mountain View with about 100 people.
>
>
>
> David
>
>
>
> From: Computer-go [mailto:computer-go-boun...@computer-go.org] On Behalf Of
> Jim O'Flaherty
> Sent: Tuesday, March 08, 2016 11:50 PM
> To: computer-go@computer-go.org
> Subject: Re: [Computer-go] AlphaGo won first game!
>
>
>
> Congratulations, AlphaGo and team. And by resignation! That's fantastic!
>
>
>
> Anyone know where the tipping point was? Did Sedol get the end game order
> just slightly off and AlphaGo took advantage? Or was their an earlier poor
> move by Sedol and/or surprising (and good) move by AlphaGo? I'm WAY too weak
> a player to even make stupid guesses. Any links to in depth analysis would
> be greatly appreciated!
>
>
>
> On Wed, Mar 9, 2016 at 1:46 AM, René van de Veerdonk
>  wrote:
>
> wow .. congrats to the AlphaGo team!!
>
>
>
> On Tue, Mar 8, 2016 at 11:43 PM, Hiroshi Yamashita  wrote:
>
> AlphaGo won 1st game against Lee Sedol!
>
> Hiroshi Yamashita
>
> ___
> Computer-go mailing list
> Computer-go@computer-go.org
> http://computer-go.org/mailman/listinfo/computer-go
>
>
>
>
> ___
> Computer-go mailing list
> Computer-go@computer-go.org
> http://computer-go.org/mailman/listinfo/computer-go
>
>
>
>
> ___
> Computer-go mailing list
> Computer-go@computer-go.org
> http://computer-go.org/mailman/listinfo/computer-go
___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[David Fotland]

Many Faces thought alpha go was ahead most of the game.  It looked to me like 
the turning point was when Alphago cut in the center then gave up the two 
cutting stones for gains on both sides (but not so strong…).  

 

Congratulations Aja!

 

I watched it at Google in Mountain View with about 100 people.

 

David

 

From: Computer-go [mailto:computer-go-boun...@computer-go.org] On Behalf Of Jim 
O'Flaherty
Sent: Tuesday, March 08, 2016 11:50 PM
To: computer-go@computer-go.org
Subject: Re: [Computer-go] AlphaGo won first game!

 

Congratulations, AlphaGo and team. And by resignation! That's fantastic!

 

Anyone know where the tipping point was? Did Sedol get the end game order just 
slightly off and AlphaGo took advantage? Or was their an earlier poor move by 
Sedol and/or surprising (and good) move by AlphaGo? I'm WAY too weak a player 
to even make stupid guesses. Any links to in depth analysis would be greatly 
appreciated!

 

On Wed, Mar 9, 2016 at 1:46 AM, René van de Veerdonk 
 wrote:

wow .. congrats to the AlphaGo team!!

 

On Tue, Mar 8, 2016 at 11:43 PM, Hiroshi Yamashita  wrote:

AlphaGo won 1st game against Lee Sedol!

Hiroshi Yamashita

___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

 


___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

 

___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[Igor Polyakov]

The amount of points AlphaGo was ahead is also meaningless because it 
started playing slow moves when it got ahead. After the big fights were 
finished it already knew it was going to win easily.


On 2016-03-08 23:55, Marc Landgraf wrote:

It was pointed out by Lee Sedol after the game and Kim Myungwan during
the game, that Q5 should have been better at R4. I would say this was
the final stage of the middle game. The result from the game left Lee
Sedol with an unwinnable endgame. And "by resignation" is meaningless
here. It is just a matter of personal preference if pros resign heir
close games, even if their are lost by 0.5 or if they decide to
resign. In this game most counts had AlphaGo 3-6 points ahead.

2016-03-09 8:49 GMT+01:00 Jim O'Flaherty :

Congratulations, AlphaGo and team. And by resignation! That's fantastic!

Anyone know where the tipping point was? Did Sedol get the end game order
just slightly off and AlphaGo took advantage? Or was their an earlier poor
move by Sedol and/or surprising (and good) move by AlphaGo? I'm WAY too weak
a player to even make stupid guesses. Any links to in depth analysis would
be greatly appreciated!

On Wed, Mar 9, 2016 at 1:46 AM, René van de Veerdonk
 wrote:

wow .. congrats to the AlphaGo team!!

On Tue, Mar 8, 2016 at 11:43 PM, Hiroshi Yamashita 
wrote:

AlphaGo won 1st game against Lee Sedol!

Hiroshi Yamashita

___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go



___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go



___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go


___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go

Re: [Computer-go] AlphaGo won first game!

[Sergey Nikolenko]

Everybody here probably knows it, but just in case -- there's a
commented broadcast uploaded here:
http://www.youtube.com/watch?v=vFr3K2DORc8
I don't play well enough to understand how good the commentary is, though.

With best regards,
Sergey Nikolenko.


On Wed, Mar 9, 2016 at 10:55 AM, Marc Landgraf  wrote:
> It was pointed out by Lee Sedol after the game and Kim Myungwan during
> the game, that Q5 should have been better at R4. I would say this was
> the final stage of the middle game. The result from the game left Lee
> Sedol with an unwinnable endgame. And "by resignation" is meaningless
> here. It is just a matter of personal preference if pros resign heir
> close games, even if their are lost by 0.5 or if they decide to
> resign. In this game most counts had AlphaGo 3-6 points ahead.
>
> 2016-03-09 8:49 GMT+01:00 Jim O'Flaherty :
>> Congratulations, AlphaGo and team. And by resignation! That's fantastic!
>>
>> Anyone know where the tipping point was? Did Sedol get the end game order
>> just slightly off and AlphaGo took advantage? Or was their an earlier poor
>> move by Sedol and/or surprising (and good) move by AlphaGo? I'm WAY too weak
>> a player to even make stupid guesses. Any links to in depth analysis would
>> be greatly appreciated!
>>
>> On Wed, Mar 9, 2016 at 1:46 AM, René van de Veerdonk
>>  wrote:
>>>
>>> wow .. congrats to the AlphaGo team!!
>>>
>>> On Tue, Mar 8, 2016 at 11:43 PM, Hiroshi Yamashita 
>>> wrote:

 AlphaGo won 1st game against Lee Sedol!

 Hiroshi Yamashita

 ___
 Computer-go mailing list
 Computer-go@computer-go.org
 http://computer-go.org/mailman/listinfo/computer-go
>>>
>>>
>>>
>>> ___
>>> Computer-go mailing list
>>> Computer-go@computer-go.org
>>> http://computer-go.org/mailman/listinfo/computer-go
>>
>>
>>
>> ___
>> Computer-go mailing list
>> Computer-go@computer-go.org
>> http://computer-go.org/mailman/listinfo/computer-go
> ___
> Computer-go mailing list
> Computer-go@computer-go.org
> http://computer-go.org/mailman/listinfo/computer-go
___
Computer-go mailing list
Computer-go@computer-go.org
http://computer-go.org/mailman/listinfo/computer-go