Re: [computer-go] Long superko example

2009-10-05 Thread Christian Nentwich
Brian, this is interesting. The sequence is as interesting as the superko, really, because it's the sort of strange sequence that would only occur to monte carlo programs. When black plays B9, a human white player would answer H4. This gives the highest win. If he's feeling obliging, he

[computer-go] [Fwd: Announcement ICGA Events 2010]

2009-10-05 Thread Rémi Coulom
---BeginMessage--- 18th World Computer Chess Championship World Chess Software Championship World Computer Chess Blitz Championship JAIST Computer Olympiad International Conference on Computers and Games 2010 Kanazawa, Japan : September 24th to October 2nd 2010 The ICGA is delighted to

Re: [computer-go] [Fwd: Announcement ICGA Events 2010]

2009-10-05 Thread Nick Wedd
In message 4ac9e4f4.9000...@univ-lille3.fr, Rémi Coulom remi.cou...@univ-lille3.fr writes 18th World Computer Chess Championship World Chess Software Championship World Computer Chess Blitz Championship JAIST Computer Olympiad International Conference on Computers and Games 2010 Kanazawa,

Re: [computer-go] [Fwd: Announcement ICGA Events 2010]

2009-10-05 Thread Hideki Kato
Nick Wedd: vgf6vg99igykf...@maproom.demon.co.uk: In message 4ac9e4f4.9000...@univ-lille3.fr, Rémi Coulom remi.cou...@univ-lille3.fr writes 18th World Computer Chess Championship World Chess Software Championship World Computer Chess Blitz Championship JAIST Computer Olympiad International

Re: [computer-go] [Fwd: Announcement ICGA Events 2010]

2009-10-05 Thread Petr Baudis
Hi! On Tue, Oct 06, 2009 at 12:08:06AM +0900, Hideki Kato wrote: Nick Wedd: vgf6vg99igykf...@maproom.demon.co.uk: I wonder if anyone here has a URL for either the Tainan Computer Go Tournament, to take place on October 30th and 31st, or the GPW Cup, November 13th and 14th? I cannot read

Re: [computer-go] [Fwd: Announcement ICGA Events 2010]

2009-10-05 Thread Nick Wedd
In message 4aca0bcf.14%hideki_ka...@ybb.ne.jp, Hideki Kato hideki_ka...@ybb.ne.jp writes Nick Wedd: vgf6vg99igykf...@maproom.demon.co.uk: In message 4ac9e4f4.9000...@univ-lille3.fr, Rémi Coulom remi.cou...@univ-lille3.fr writes 18th World Computer Chess Championship World Chess Software

[computer-go] Long superko example

2009-10-05 Thread Brian Sheppard
The sequence is as interesting as the superko, really, because it's the sort of strange sequence that would only occur to monte carlo programs. Yes, that is why I posted it. I'm very curious what black thought the win rate was before B9... I do not know. This position wasn't from a game. It

[computer-go] end game analysis

2009-10-05 Thread Thomas Wolf
A quick question: What programs are useful for coaching a player by analysing the moves that have been played in the endgame of some 19x19 game? What one would want to do is to input the position, say 30 moves from the end, and get a ranking of the remaining moves. It would be nice if it would

Re: [computer-go] [Fwd: Announcement ICGA Events 2010]

2009-10-05 Thread Hideki Kato
Petr Baudis: 20091005153323.go6...@machine.or.cz: Hi! On Tue, Oct 06, 2009 at 12:08:06AM +0900, Hideki Kato wrote: Nick Wedd: vgf6vg99igykf...@maproom.demon.co.uk: I wonder if anyone here has a URL for either the Tainan Computer Go Tournament, to take place on October 30th and 31st, or the

Re: [computer-go] end game analysis

2009-10-05 Thread Thomas Wolf
A comment to my own question: I should have formulated it better, of course all MC programs are useful in some sense. The specifics of the request is that the player is not avalable to play live against a normal program and to learn from interactive play. Also, for the analysis to be more

RE: [computer-go] end game analysis

2009-10-05 Thread David Fotland
Many Faces can do some of this. You can easily try different moves or sequences and have the computer think at each position, although you have the start the analysis by hand. Win rate and PV are shown during the search so you can start a long search and stop it when it looks stable. After the

RE: [SPAM] Re: [SPAM] Re: [computer-go] Progressive widening vs unpruning

2009-10-05 Thread David Fotland
I tried this yesterday with K=10 and it seemed to make Many Faces weaker (84.2% +- 2.3 vs 81.6% +-1.7), not 95% confidence, but likely weaker. This is 19x19 vs gnugo with Many Faces using 8K playouts per move, 1000 games without and 2000 games with the change. I have the UCT exploration term, so