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Offline Ryukai
 Post subject: 14k game
Post #1 Posted: Mon Oct 03, 2016 2:12 pm 
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First game in awhile I've been able to play with a clear head, so I figured I'd show it and see what you all have to say. Thanks in advance.


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Offline EdLee
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Post #2 Posted: Mon Oct 03, 2016 3:32 pm 
Honinbo
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Were you B or W ? :)

:b15: C17 is not small.

:b29: o7.

:w34: Result bad for W.

:b37: Already bad shape for W ( W's problem is earlier ).

:w38: Bad shape for W ( the problem is earlier ).

:b39: C17.

:w42: E14.

:w54: Bad habit.

:w56: N15.

:b67: Bad shape, bad habit.

:w68: Bad habit.
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Offline Ryukai
 Post subject: Re: 14k game
Post #3 Posted: Mon Oct 03, 2016 4:33 pm 
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I was black.
:b67: - I don't know what's wrong with this. Could you explain more?

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Offline EdLee
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Post #4 Posted: Mon Oct 03, 2016 8:21 pm 
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Hi Ryukai,

Please see Hane @ Head of 2.

Locally, ignoring the rest of the board,
this exchange is bad for B, good for W:
Click Here To Show Diagram Code
[go]$$
$$ ? ? ? ? ? ? ? ? ? ?
$$ ? . . . . . . . . ?
$$ ? . . . . O . . . ?
$$ ? . . O O . . . . ?
$$ ? . . X 1 2 . . . ?
$$ ? . . . . . . . . ?
$$ ? ? ? ? ? ? ? ? ? ?[/go]
Do you get a feeling that :b1: head-bumps himself against W's strong shape ?
A different, contrived shape and example:
Given the following, would you play (a) as B ?
Click Here To Show Diagram Code
[go]$$
$$ ? ? ? ? ? ? ? ? ? ?
$$ ? . . . . . . . . ?
$$ ? . . . . O . . . ?
$$ ? . . X a O . . . ?
$$ ? . . . . O . . . ?
$$ ? . . . . . . . . ?
$$ ? ? ? ? ? ? ? ? ? ?[/go]
Do you get a feeling the :b1: stone is unhappy ?
Click Here To Show Diagram Code
[go]$$
$$ ? ? ? ? ? ? ? ? ? ?
$$ ? . . . . . . . . ?
$$ ? . . . . O . . . ?
$$ ? . . X 1 O . . . ?
$$ ? . . . . O . . . ?
$$ ? . . . . . . . . ?
$$ ? ? ? ? ? ? ? ? ? ?[/go]
Now compare and study the :b67: shape in the game.
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Offline Ryukai
 Post subject: Re: 14k game
Post #5 Posted: Mon Oct 03, 2016 10:44 pm 
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I think I understand what you mean, but what would be a better alternative to my move?

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Offline EdLee
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Post #6 Posted: Tue Oct 04, 2016 12:01 am 
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Locally, L13 is a candidate.
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Offline schawipp
 Post subject: Re: 14k game
Post #7 Posted: Tue Oct 04, 2016 1:43 am 
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A move like :b71: is not very big. It enlarges b's territory by maybe 2 points. At the same time it invites w to secure a much bigger territory below.

Therefore at :b71: I would probably have played the shoulder hit at H4. It is a nice reduction, there are black stones located in left & top directions and - if white answers by securing the bottom - it could potentially develop a large moyo in the center area.

If there is a drawback with :b71: at H4 please someone let me know.
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Offline daal
 Post subject: Re: 14k game
Post #8 Posted: Tue Oct 04, 2016 6:45 am 
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Here is how I saw some of these situations.



Attachments:
N9DP-Pierce-commented.sgf [5.43 KiB]
Downloaded 520 times

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Offline Ryukai
 Post subject: Re: 14k game
Post #9 Posted: Tue Oct 04, 2016 11:56 am 
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Thanks for the comments, Daal. I actually played as black in that game, though that doesn't make any of your points less helpful. And you're right about the moves at O9 and J12, I let some rather frustrating experiences with getting cut replace a simple reading of the situation.

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