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Hoshi, 3-6 approach, kick, nobi, and the 3-3 invasion later.
http://www.lifein19x19.com/viewtopic.php?f=15&t=4403		 Page 1 of 1
Author:  AVAVT [ Sun Aug 07, 2011 1:08 pm ]
Post subject:  Hoshi, 3-6 approach, kick, nobi, and the 3-3 invasion later.
Sorry if the name's not very clear. This is what I mean:

Go Diagram
Initial position
Click Here To Show Diagram Code
[go]$$W Initial position
$$ ----------------------
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . 3 2 . . . .
$$ | . . . 1 . 4 . . . .
$$ | . . . . . . . . . .
$$ | . . 5 . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .[/go]


After that, at sometime white will 3-3. I see the 3 common answers from black are A, B and C:

Go Diagram
Where to play?
Click Here To Show Diagram Code
[go]$$W Where to play?
$$ ----------------------
$$ | . . . . . . . . . .
$$ | . . . . c . . . . .
$$ | . . 1 a X O . . . .
$$ | . . . X b O . . . .
$$ | . . . . . . . . . .
$$ | . . B d . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .[/go]


I get the idea of black C, but I really can't understand the merit of black A and B. I guess they depend on the right white group and the position of the marked black stone. From what I recall C is usually not played when the marked black stone is at D.

Can anyone enlighten me on this matter, or show me a good reading source about this?
Author:  jts [ Sun Aug 07, 2011 3:27 pm ]
Post subject:  Re: Hoshi, 3-6 approach, kick, nobi, and the 3-3 invasion la
You can look up these variations on josekipedia. (Although they don't include your "b"; instead they have a variation for C16). Long story short, E18 (your "c") allows W to take the corner while the other two options (C16 and D17) have some chance of keeping the corner.
Author:  gowan [ Sun Aug 07, 2011 4:07 pm ]
Post subject:  Re: Hoshi, 3-6 approach, kick, nobi, and the 3-3 invasion la
AVAVT wrote:
Sorry if the name's not very clear. This is what I mean:

Go Diagram
Initial position
Click Here To Show Diagram Code
[go]$$W Initial position
$$ ----------------------
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . 3 2 . . . .
$$ | . . . 1 . 4 . . . .
$$ | . . . . . . . . . .
$$ | . . 5 . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .[/go]


After that, at sometime white will 3-3. I see the 3 common answers from black are A, B and C:

Go Diagram
Where to play?
Click Here To Show Diagram Code
[go]$$W Where to play?
$$ ----------------------
$$ | . . . . . . . . . .
$$ | . . . . c . . . . .
$$ | . . 1 a X O . . . .
$$ | . . . X b O . . . .
$$ | . . . . . . . . . .
$$ | . . B d . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .[/go]


I get the idea of black C, but I really can't understand the merit of black A and B. I guess they depend on the right white group and the position of the marked black stone. From what I recall C is usually not played when the marked black stone is at D.

Can anyone enlighten me on this matter, or show me a good reading source about this?


Here's a Sensei's Library page with a few variations: http://senseis.xmp.net/?44PointLowAppro ... sion#diag2
Author:  AVAVT [ Sun Aug 07, 2011 4:57 pm ]
Post subject:  Re: Hoshi, 3-6 approach, kick, nobi, and the 3-3 invasion la
Thank you very much!
That's exactly what I was hoping for ^^

I saw my B several times before, in most cases b get quite nice influence. Can't really find any example though ~.~
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