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 Post subject: Re: Soltis experiment
Post #21 Posted: Fri Nov 21, 2014 10:46 am 
Honinbo

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Last night I chanced across a book by Takabe Dohei 7 dan in 1943 about the application of joseki, at http://kindai.ndl.go.jp/info:ndljp/pid/1037311 . Here is a fuseki that he discusses on a couple of pages. He definitely addresses why certain plays are not good, and gives plans about how to take advantage of some of them. He does discuss development, but mostly in verbal terms and not in detail. I have based the comments on the text.

@ Aidoneus. There is a good example of prophylactic play, :b17: - :b27: in the main line of the variation at move 12.
Edit: We could even say that Black executes a plan. :D



Of interest also, I think, are some plays that received not comment, and some plays that were not made. :)

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Last edited by Bill Spight on Fri Nov 21, 2014 11:19 am, edited 1 time in total.

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 Post subject: Re: Soltis experiment
Post #22 Posted: Fri Nov 21, 2014 10:59 am 
Oza

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Although have another reason for posting this, first here is an example of the now pervasive modern style of probing and skirmishing I referred to above. White 20 is the characteristic move. It's too fluffy to be called an erasure. Taking Soltis's advice to treat every diagram as an opportunity, stop at White 20 and try to work out a plan for Black. The move in the game was a mistake according the author. Then open the box.



Black 21 was an attempt to play thickly but in terms of the overall game it was too solid. It should have been the press at K6.


Now to the real reason for posting. WE are in the rather depressing age of the teenybopper three-day wonders, who mostly can't manage nine days like in my day, and of course their Mickey Mouse time limits. But eighteen-year-old Koyama (who has an enviable go pedigree - grandson of Koyama Shizuo 9-dan, son of Koyama Ryugo 6-dan and of Koyama Teruo 6-dan, plus his maternal grandmother runs a go club) just qualified for the final preliminary of the Meijin. He was overjoyed, but not so much because he reached the lucrative stages of a major event. It was because he thus got his first chance to play a 5-hour game. My heart went right out to him.


This post by John Fairbairn was liked by 3 people: Aidoneus, Bill Spight, gowan
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 Post subject: Re: Soltis experiment
Post #23 Posted: Fri Nov 21, 2014 11:16 am 
Honinbo

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Gee, John, :w20: does not seem particularly modern to me. :) OC, we have a modern set-up for it.

Hmmm. My first impulse was K-06, but then I thought it better to get in between the White stones at M-07. I did consider :b21: in the game. It is shape, but too slow, I felt.

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The Adkins Principle:
At some point, doesn't thinking have to go on?
— Winona Adkins

Visualize whirled peas.

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 Post subject: Re: Soltis experiment
Post #24 Posted: Fri Nov 21, 2014 11:23 am 
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@ Bill and John:

Interesting instruction gentlemen, thank you!

While one of my classes was taking a test yesterday, I was reading Chapter 3 (Probing Moves) in The Basics of Go Strategy. It had what I thought was a quite interesting example of whole-board (or at least broader-board) thinking. In this example, it was pointed out that whether White connected directly or with a hanging connection, followed by a third line extension, Black could make an ideal checking extension. However, if White first makes a probe, she can decide on hanging/direct depending on whether Black plays a small/large knights extension. (I already reported the misnumbered stones in Diagram 4. I think that including the image is fair use. If anyone disagrees, I'll remove it.)

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 Post subject: Re: Soltis experiment
Post #25 Posted: Fri Nov 21, 2014 11:24 am 
Oza

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My first impulse was J6, but on reflection, I think that is giving white's position too much credit and think K6 is better.

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