a little help with this position

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dedroid
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a little help with this position

Post by dedroid »

I think I've seen this somewhere on here before, but can't find it.

I've had this position happen in my game, and I'm not quite sure how to handle it.

Click Here To Show Diagram Code
[go]$$
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . O . . . |
$$ | . . . . . . . . . . . . . . O . O . . |
$$ | . . . . . . . . . . . . O O X O O . . |
$$ | . . . , . . . . . , . . O X X X X . . |
$$ | . . . . . . . . . . . . O X . . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . a . |
$$ | . . . . . . . . . . . . . . . X b W . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . . . . . . . . . . X . . . . . X . . |
$$ | . . . , . . . . . , . . . X . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


I answered at a, but I now think that b is better. white may be able to connect under, but black can keep white low and short of eyes. Is this correct? or is there a better way to handle this?
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Re: a little help with this position

Post by Bill Spight »

dedroid wrote:I think I've seen this somewhere on here before, but can't find it.

I've had this position happen in my game, and I'm not quite sure how to handle it.

Click Here To Show Diagram Code
[go]$$
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . O . . . |
$$ | . . . . . . . . . . . . . . O . O . . |
$$ | . . . . . . . . . . . . O O X O O . . |
$$ | . . . , . . . . . , . . O X X X X . . |
$$ | . . . . . . . . . . . . O X . . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . a . |
$$ | . . . . . . . . . . . . . . . X b W . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . . . . . . . . . . X . . . . . X . . |
$$ | . . . , . . . . . , . . . X . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


I answered at a, but I now think that b is better. white may be able to connect under, but black can keep white low and short of eyes. Is this correct? or is there a better way to handle this?


"a" gives up too much. "b" does not threaten to separate the White stones.

Click Here To Show Diagram Code
[go]$$
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . O . . . |
$$ | . . . . . . . . . . . . . . O . O . . |
$$ | . . . . . . . . . . . . O O X O O . . |
$$ | . . . , . . . . . , . . O X X X X . . |
$$ | . . . . . . . . . . . . O X . . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , 1 . . |
$$ | . . . . . . . . . . . . . . . X . W . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . . . . . . . . . . X . . . . . X . . |
$$ | . . . , . . . . . , . . . X . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


I like :b1: . :)
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Re: a little help with this position

Post by lorill »

how do you continue if white pushes ?
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Re: a little help with this position

Post by cyclops »

lorill wrote:how do you continue if white pushes ?

s10 I would answer with b@s7 and keep w seperated.
r9 I would answer with b@q8.
I think I am so I think I am.
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Re: a little help with this position

Post by logan »

B is the proper way to respond, A is the incorrect. There is a full analysis of this position in 100 Tips for Amateur Players II by Yoon Youngsun.
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Re: a little help with this position

Post by SoDesuNe »

Click Here To Show Diagram Code
[go]$$Bc
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . O . . . |
$$ | . . . . . . . . . . . . . . O . O . . |
$$ | . . . . . . . . . . . . O O X O O . . |
$$ | . . . , . . . . . , . . O X X X X . . |
$$ | . . . . . . . . . . . . O X . . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . X . W . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . 1 . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . . . . . . . . . . X . . . . . X . . |
$$ | . . . , . . . . . , . . . X . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


Fight, fight, fight - fight, fight, fight! : )
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Joaz Banbeck
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Re: a little help with this position

Post by Joaz Banbeck »

Click Here To Show Diagram Code
[go]$$Bc
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . O . . . |
$$ | . . . . . . . . . . . . . . O . O . . |
$$ | . . . . . . . . . . . . O O X O O . . |
$$ | . . . , . . . . . , . . O X X X X . . |
$$ | . . . . . . . . . . . . O X . . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . 2 . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . a . . . |
$$ | . . . . . . . . . . . . . . . X . W . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . 1 . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . . . . . . . . . . X . . . . . X . . |
$$ | . . . , . . . . . , . . . X . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Or maybe 'a' first. But white will live inside of black's area of influence.

Small, small, small, small, small.
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Re: a little help with this position

Post by Gresil »

I would cap it with a keima. Is that too mellow?
So you've got an eye?
That don't impress me much
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Re: a little help with this position

Post by amnal »

Gresil wrote:I would cap it with a keima. Is that too mellow?


Seems basically the same as R10 but unnecessarily...well, yes, mellow. Since you can block white strongly with R10 without problems, there's no need to play R11.
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Re: a little help with this position

Post by SoDesuNe »

Joaz Banbeck wrote:
Click Here To Show Diagram Code
[go]$$Bc
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . O . . . |
$$ | . . . . . . . . . . . . . . O . O . . |
$$ | . . . . . . . . . . . . O O X O O . . |
$$ | . . . , . . . . . , . . O X X X X . . |
$$ | . . . . . . . . . . . . O X . . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . 2 . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . a . . . |
$$ | . . . . . . . . . . . . . . . X . W . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . 1 . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . . . . . . . . . . X . . . . . X . . |
$$ | . . . , . . . . . , . . . X . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Or maybe 'a' first. But white will live inside of black's area of influence.

Small, small, small, small, small.



Hm, whole bottom right, massive thickness into the center and White lives small and is sealed. I don't see a big loss for Black.
dedroid
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Re: a little help with this position

Post by dedroid »

so many different responses O-O now i are confused
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oren
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Re: a little help with this position

Post by oren »

dedroid wrote:so many different responses O-O now i are confused


Welcome to go!
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Re: a little help with this position

Post by Magicwand »

:b1: will result in :w2: which is a bad play for black.
if black can not catch this group he will lose too much.
Click Here To Show Diagram Code
[go]$$Bc
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . O . . . |
$$ | . . . . . . . . . . . . . . O . O . . |
$$ | . . . . . . . . . . . . O O X O O . . |
$$ | . . . , . . . . . , . . O X X X X . . |
$$ | . . . . . . . . . . . . O X . . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . X . W . |
$$ | . . . . . . . . . . . . . . . . 3 4 . |
$$ | . . . . . . . . . . . . . . . . 5 1 6 |
$$ | . . . . . . . . . . . . . . . O O 2 . |
$$ | . . . . . . . . . . X . . . . . X . . |
$$ | . . . , . . . . . , . . . X . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
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Re: a little help with this position

Post by Bartleby »

logan wrote:B is the proper way to respond, A is the incorrect. There is a full analysis of this position in 100 Tips for Amateur Players II by Yoon Youngsun.


If you are talking about the analysis on p. 163, I think there may be a difference here, which is that here there are other white stones near enough to be helpful in some lines.

I remember asking a similar question about an invasion on the second line directly under a stone on the middle starpoint in a san ren sei opening. I am not sure whether that was on Go Discussions or here.

In that situation, like in the example 100 Tips for Amateur Players II, there were no friendly stones around (i.e., it was an invasion of one stone on the second line beneath a stone on the fourth line). Someone (maybe Bill Spight or Araban?) suggested that the normal response was to play a butting move against the invading stone, but that it depended to some extent on the surrounding stones.
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Re: a little help with this position

Post by Dusk Eagle »

I think the butting move is good if the stones are a line farther back. There's a noticeable difference between these two positions:

Click Here To Show Diagram Code
[go]$$Bc
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . O . . . |
$$ | . . . . . . . . . . . . . . O . O . . |
$$ | . . . . . . . . . . . . O O X O O . . |
$$ | . . . , . . . . . , . . O X X X X . . |
$$ | . . . . . . . . . . . . O X . . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . B . W . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . . . . . . . . . . X . . . . . X . . |
$$ | . . . , . . . . . , . . . X . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


Click Here To Show Diagram Code
[go]$$Bc
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . O . . . |
$$ | . . . . . . . . . . . . . . O . O . . |
$$ | . . . . . . . . . . . . O O X O O . . |
$$ | . . . , . . . . . , . . O X X X X . . |
$$ | . . . . . . . . . . . . O X . . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . B . W . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . . . . . . . . . . X . . . . . X . . |
$$ | . . . , . . . . . , . . . X . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

So far, I think Bill's suggestion for this situation is best:

Click Here To Show Diagram Code
[go]$$Bc
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . O . . . |
$$ | . . . . . . . . . . . . . . O . O . . |
$$ | . . . . . . . . . . . . O O X O O . . |
$$ | . . . , . . . . . , . . Q X X X X . . |
$$ | . . . . . . . . . . . . Q Y . . . . . |
$$ | . . . . . . . . . . . . . Y . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , B . . |
$$ | . . . . . . . . . . . . . . . X . O . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . . . . . . . . . . X . . . . . X . . |
$$ | . . . , . . . . . , . . . X . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

If it seems unsatisfying, that might be because in the top right corner, the exchange of :wt: for :bt: is much better for white than for black. When white plays :w1: below, black should hane:

Click Here To Show Diagram Code
[go]$$Wc
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . O . . . |
$$ | . . . . . . . . . . . . . . O . O . . |
$$ | . . . . . . . . . . . . O O X O O . . |
$$ | . . . , . . . . . , . . 1 X X X X . . |
$$ | . . . . . . . . . . . 3 2 . . . . . . |
$$ | . . . . . . . . . . . 4 . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X . . . . . . . . |
$$ | . . . , . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
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