Life In 19x19

Hello there, I am having a hard time finding this video where the 4-2 probe attach on shimari is being explained by someone.

I think it was on a real board however.

I am currently subscribed on youtube to maybe 5-6 different go channels and I have been going through the past videos but I simply can't find it.

Would anyone be so helpful and provide a link if they can? Thanks

Um.. is this what you're lookin' for?

http://senseis.xmp.net/?24ProbeAgainstA ... rEnclosure

Anzu wrote:Um.. is this what you're lookin' for?

http://senseis.xmp.net/?24ProbeAgainstA ... rEnclosure

Yep but the video explained it better I think since there was a new variation after black plays c, white tenuki, black plays one space extension. Now if white wants to hane and live in corner there was a sequence starting with 2-2 that is supposed to kill white.

Maybe this one?

http://www.gocommentary.com/free-videos ... art-1.html

Or this one:

https://www.youtube.com/watch?v=BJ4uwty2WVw

Sennahoj wrote:Maybe this one?

http://www.gocommentary.com/free-videos ... art-1.html

Or this one:

https://www.youtube.com/watch?v=BJ4uwty2WVw

Ahh, thank you

I think I watched the youtube one but both seem cool!

Click Here To Show Diagram Code

[go]$$W
$$ -------------------------
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . X 5 6 2 . |
$$ | . , . . . . 7 3 X 1 . |
$$ | . . . . . . . . 4 . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |[/go]

So this result is kinda ok for white but what if 6 is instead like this.

Click Here To Show Diagram Code

[go]$$W
$$ -------------------------
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . X 5 . 2 . |
$$ | . , . . . 6 . 3 X 1 . |
$$ | . . . . . . . . 4 . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |[/go]

Would this be considered good for white?, since black can live casually with 2-2 and then there is still plenty of space on right side. Playing the diagonal with 6 is more flexible compared to simple nobi which is kinda crude.

The question is after black plays 4 is 5 the correct move?

Click Here To Show Diagram Code

[go]$$W
$$ -------------------------
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . X 6 5 2 . |
$$ | . , . . . . . 3 X 1 . |
$$ | . . . . . . . . 4 . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |[/go]

This doesn't amount to anything so could it be that 4 is ok for black?

You looked for the video, you checked the senseis' page, you didn't find the video there, you now found the video...I hope the next step is clear

hyperpape wrote:You looked for the video, you checked the senseis' page, you didn't find the video there, you now found the video...I hope the next step is clear

They didn't go over this variation I posted previously.

Add the videos to senseis was what I was suggesting.

Krama wrote: So this result is kinda ok for white but what if 6 is instead like this.

$$W
$$ -------------------------
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . X 5 . 2 . |
$$ | . , . . . 6 . 3 X 1 . |
$$ | . . . . . . . . 4 . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |

Click Here To Show Diagram Code

[go]$$W
$$ -------------------------
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . X 5 . 2 . |
$$ | . , . . . 6 . 3 X 1 . |
$$ | . . . . . . . . 4 . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |[/go]

Would this be considered good for white?

The question is after black plays 4 is 5 the correct move?

Of course there can always be special situations, but usually this is not good for black, because white destroys the corner territory.

The normal way to play after is like this, after which the white stones are light and flexible and has reduced black's potential in that area:

Click Here To Show Diagram Code

[go]$$W
$$ -------------------------
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . X . 4 2 . |
$$ | . , . . . . . 3 X 1 . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . 5 . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |[/go]

Sennahoj wrote:

Krama wrote: So this result is kinda ok for white but what if 6 is instead like this.

$$W
$$ -------------------------
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . X 5 . 2 . |
$$ | . , . . . 6 . 3 X 1 . |
$$ | . . . . . . . . 4 . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |

Click Here To Show Diagram Code

[go]$$W
$$ -------------------------
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . X 5 . 2 . |
$$ | . , . . . 6 . 3 X 1 . |
$$ | . . . . . . . . 4 . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |[/go]

Would this be considered good for white?

The question is after black plays 4 is 5 the correct move?

Of course there can always be special situations, but usually this is not good for black, because white destroys the corner territory.

The normal way to play after is like this, after which the white stones are light and flexible and has reduced black's potential in that area:

$$W
$$ -------------------------
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . X . 4 2 . |
$$ | . , . . . . . 3 X 1 . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . 5 . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |

Click Here To Show Diagram Code

[go]$$W
$$ -------------------------
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . X . 4 2 . |
$$ | . , . . . . . 3 X 1 . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . 5 . . . |
$$ | . . . . . . . . . . . |
$$ | . . . . . . . . . . . |[/go]

Black loses the corner but gets the right side going and white gets a new weak group, but remember that this is a probe white plays before finishing the joseki in lower right, this means black is getting stronger on right side and white will have problems with continuing in the lower right.

White need not split with 5 immediately. He could continue with the low right corner joseki and leave black worrying about the problem he has created for himself in the shimari. It is a debt Black will have to pay for in the future, either by playing a slow gote move to fix it, or suffering a substantial loss of territory and isolation of the 5-3 stone if white plays there first. Don't forget both Black and White get unsettled groups in the top side when white splits: this increases White's potential in the top left of the board.

Uberdude wrote:White need not split with 5 immediately. He could continue with the low right corner joseki and leave black worrying about the problem he has created for himself in the shimari. It is a debt Black will have to pay for in the future, either by playing a slow gote move to fix it, or suffering a substantial loss of territory and isolation of the 5-3 stone if white plays there first. Don't forget both Black and White get unsettled groups in the top side when white splits: this increases White's potential in the top left of the board.

I like your thinking, might try this in my following games