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 Post subject: Re: Evaluation hodgepodge #21 Posted: Thu Apr 29, 2021 9:44 am
 Tengen

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Bill Spight wrote:
Berlekamp came up with the term, count, to cover both mean values of finite combinatorial games and mast values of kos and superkos.

Ok, now it is clear (except that I need to study mast values in general).

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 Post subject: Re: Evaluation hodgepodge #22 Posted: Thu Apr 29, 2021 11:05 am
 Honinbo

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Bill Spight wrote:
RobertJasiek wrote:
Kano's example is not exactly miai because, even without ko threat play, playing at C19 can sometimes be correct and did win FJ Dickhut a German Championship game.

Yes, Kano also assumes that Black cannot win the ko in the corner.

My mistake, I think. If Black plays C-19, no seki, no ko. The right play to make seki or the corner ko, I now think, is the sagari, E-19. Here is an sgf that explains the variations. Maybe I made a mistake, but I don't think so. Points are marked with circles, captured stones and places where stones have been captured are marked with triangles.

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Visualize whirled peas.

Everything with love. Stay safe.

Last edited by Bill Spight on Thu Apr 29, 2021 11:30 am, edited 1 time in total.
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 Post subject: Re: Evaluation hodgepodge #23 Posted: Thu Apr 29, 2021 11:20 am
 Tengen

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Yes, this must be the right timimg.

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 Post subject: Re: Evaluation hodgepodge #24 Posted: Sat May 01, 2021 5:01 pm
 Lives in sente

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Why is D19 an »obvious error«? It seems to me that both the ko and the seki are worse results for White. What am I overlooking?

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A good system naturally covers all corner cases without further effort.

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 Post subject: Re: Evaluation hodgepodge #25 Posted: Sat May 01, 2021 5:20 pm
 Honinbo

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Harleqin wrote:
Why is D19 an »obvious error«? It seems to me that both the ko and the seki are worse results for White. What am I overlooking?

Because Kano assumes that the position is miai.

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At some point, doesn't thinking have to go on?

Visualize whirled peas.

Everything with love. Stay safe.

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