On Tue, Oct 27, 2009 at 01:10:09PM +0100, Stefan Kaitschick wrote:
>
> >But, has anyone gathered stats on positions, from real games, that
> >require precise play by the defender/attacker/both/neither? Is defending
> >really easier than attacking?
> >
> >Darren
>
>
> Who is the defender?
> One s
hard positions for MCTS
Hello,
Are there more peculiar situation that will cause problems for MCTS apart
from the three I know.
1. Nakade (this is partuially solved in most of the programs)
2. Semeais
3. Double Ko.
Last one was new to me. See
http://files.gokgs.com/games/2009/10/26/ManyFaces
This causes what I call the "horizon effect" which prevents the
tree exploration to work properly - the moment the tree finds a sequence
that unbiases the simulations, it is horrified by the bad results [*] and
switches to a different branch, until it finds the same; thus, the bot
pushes the reso
But, has anyone gathered stats on positions, from real games, that
require precise play by the defender/attacker/both/neither? Is defending
really easier than attacking?
Darren
Who is the defender?
One side is defending his territory, the other side is defending his group.
I think the genera
That is well known fact of go, that usually defence is easier. But evidence
is anecdotal. Getting real evidence from real games cannot be automated as
all concept involved are rather vague and difficult to classify. Hence I am
willing to accept such information as passed on to me in books like "de
> But the biggest problem is that the path to life/ko is very narrow.
> The defender has many useful moves and the invader has few.
> So MCTS will falsely judge invadable areas to be safe.
Interesting, I'd not thought about it in that respect: I know I can soon
find positions where the defender ha
Hi!
On Tue, Oct 27, 2009 at 12:05:57PM +0200, Petri Pitkanen wrote:
> Are there more peculiar situation that will cause problems for MCTS apart
> from the three I know.
> 1. Nakade (this is partuially solved in most of the programs)
> 2. Semeais
> 3. Double Ko.
Yes, these are all just particu
to be safe.
Stefan
- Original Message -
From: Petri Pitkanen
To: computer-go
Sent: Tuesday, October 27, 2009 11:05 AM
Subject: [computer-go] MC hard positions for MCTS
Hello,
Are there more peculiar situation that will cause problems for MCTS apart
from the three I
Hello,
Are there more peculiar situation that will cause problems for MCTS apart
from the three I know.
1. Nakade (this is partuially solved in most of the programs)
2. Semeais
3. Double Ko.
Last one was new to me. See
http://files.gokgs.com/games/2009/10/26/ManyFaces-Hyoga.sgf
In that game many
