Re: [computer-go] Position Rich in Lessons

2009-06-23 Thread Magnus Persson
Quoting Brian Sheppard : What komi did you use? It is nice to have the sgf in addition to the position. It is 7.5, and I do not have the SGF. I will try to create SGF for future posts, to make reproduction easier for all. Could it be that Pebbles have trouble seeing that the semeai is won a

RE: [computer-go] Position Rich in Lessons

2009-06-22 Thread David Fotland
; boun...@computer-go.org] On Behalf Of Brian Sheppard > Sent: Monday, June 22, 2009 3:01 PM > To: computer-go@computer-go.org > Subject: [computer-go] Position Rich in Lessons > > > What rule proposes C9 in Many Faces or Valkyria? > > 1 2 3 4 5 6 7 8 9 > A - - - - - - -

[computer-go] Position Rich in Lessons

2009-06-22 Thread Brian Sheppard
>What komi did you use? It is nice to have the sgf in addition to the position. It is 7.5, and I do not have the SGF. I will try to create SGF for future posts, to make reproduction easier for all. >Could it be that Pebbles have trouble seeing that the semeai is won >after white C9. Yes, exac

RE: [computer-go] Position Rich in Lessons

2009-06-22 Thread David Fotland
To: computer-go@computer-go.org > Subject: Re: [computer-go] Position Rich in Lessons > > Quoting Brian Sheppard : > > > > > Further analysis convinced me that O is actually winning this game. My > > current > > engine likes A8 for O until iteration 7000, and then F9 fo

Re: [computer-go] Position Rich in Lessons

2009-06-22 Thread Magnus Persson
Quoting Brian Sheppard : Further analysis convinced me that O is actually winning this game. My current engine likes A8 for O until iteration 7000, and then F9 for O, and switches to the winning move only on iteration 143,000. But it doesn't really "see" the win, because the evaluation remains

[computer-go] Position Rich in Lessons

2009-06-22 Thread Brian Sheppard
I am analyzing an interesting position, shown below. It is rich in lessons, at least for me, so I figured I would share it. By the way, I have a simple way to find interesting situations. When Pebbles loses, it saves the *last* position that it thought it was winning (i.e., the rating of the selec