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99. topazg vs sevis

https://www.lifein19x19.com/viewtopic.php?t=3222

Page 8 of 14

Re: 99. topazg vs sevis

Posted: Sun Feb 27, 2011 9:00 am
by Sevis
Cutting would result in:

Click Here To Show Diagram Code
[go]$$Wcm31 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . . . . . . . . . . . . . . . X . . |
$$ | . 8 . . . . . . . . . . . . . . . . . |
$$ | . 5 4 X . . . . . , . . . . . , . . . |
$$ | 9 6 3 . . 2 . . . . . . . . . . . . . |
$$ | . 7 X 1 . . . . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . . X . . |
$$ | . . . . . . X . . . . . . . . . . . . |
$$ | . . . . X X . . . . . . . . . . . . . |
$$ | . . . X . O O . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


Not cutting would result in the same, but without the stone at 7.

Thus:


Click Here To Show Diagram Code
[go]$$Wcm31 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . . . . . . . . . . . . . . . X . . |
$$ | . 6 . . . . . . . . . . . . . . . . . |
$$ | . 5 4 X . . . . . , . . . . . , . . . |
$$ | . . 3 . . 2 . . . . . . . . . . . . . |
$$ | . . X 1 . . . . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . . X . . |
$$ | . . . . . . X . . . . . . . . . . . . |
$$ | . . . . X X . . . . . . . . . . . . . |
$$ | . . . X . O O . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Re: 99. topazg vs sevis

Posted: Sun Feb 27, 2011 10:52 am
by topazg
Click Here To Show Diagram Code
[go]$$Wcm31 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . . . . . . . . . . . . . . . X . . |
$$ | . 6 . . . . . . . . . . . . . . . . . |
$$ | . 5 4 X . . . . . , . . . . . , . . . |
$$ | . 7 3 . . 2 . . . . . . . . . . . . . |
$$ | . . X 1 . . . . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . . X . . |
$$ | . . . . . . X . . . . . . . . . . . . |
$$ | . . . . X X . . . . . . . . . . . . . |
$$ | . . . X . O O . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Re: 99. topazg vs sevis

Posted: Sun Feb 27, 2011 10:58 am
by Sevis
Click Here To Show Diagram Code
[go]$$Wcm31 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . 8 . . . . . . . . . . . . . X . . |
$$ | . 6 . . . . . . . . . . . . . . . . . |
$$ | . 5 4 X . . . . . , . . . . . , . . . |
$$ | . 7 3 . . 2 . . . . . . . . . . . . . |
$$ | . . X 1 . . . . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . . X . . |
$$ | . . . . . . X . . . . . . . . . . . . |
$$ | . . . . X X . . . . . . . . . . . . . |
$$ | . . . X . O O . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Re:

Posted: Sun Feb 27, 2011 12:37 pm
by hman
@topazg, EdLee, Magicwand.

EdLee wrote:@topazg:
topazg wrote:You have very definitive opinions for a 4k.
Let the stones do the talking. :) I am super slow;
I drop 2-3 stones at "mickey mouse" tournament time controls. :-?


I'd like to see a topazg-Edlee Malkovich, with comments by Magicwand. Please? :)

Re: 99. topazg vs sevis

Posted: Sun Feb 27, 2011 1:13 pm
by topazg
Click Here To Show Diagram Code
[go]$$Wcm31 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . 8 . . . . . . . . . . . . . X . . |
$$ | . 6 . . . . . . . . . . . . . . . . . |
$$ | . 5 4 X . . . . . , . . . . . , . . . |
$$ | . 7 3 . . 2 . . . . . . . . . . . . . |
$$ | . . X 1 . . . . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . . X . . |
$$ | . . . . . . X . . . . . . . . . . . . |
$$ | . . . . X X . . . . . . . . . . . . . |
$$ | . . . X . O O . . , . . . . . X . . . |
$$ | . . . . . . . . . 9 . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


Thank goodness, I live pretty much everywhere. I Ed was absolutely right that preventing E5 earlier was urgent (even if we didn't agree on some other things ;) ) - the top left was big, but it wasn't big enough to let Black do what he did. However, White's ok with this position now. It's time to decide how to handle the right, lower right, and Black's not yet settled group in the lower left, and then do a count.

Re: 99. topazg vs sevis

Posted: Sun Feb 27, 2011 3:20 pm
by topazg
Some further thoughts:

Spoiler:

Actually, the last move had rather more thought about it than the immediately obvious, so I'll expand slightly.

Click Here To Show Diagram Code
[go]$$Bcm40 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . X . . . . . . . . . . . . . X . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . O X X . . . . . , . . . . . , . . . |
$$ | . O O . . X . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . O O . O a . . . . . . . . . X . . |
$$ | . 1 . . . . X . . . . . . . . . . . . |
$$ | . 3 2 . X B . . . . . . . . . . . . . |
$$ | . 5 4 X . O O . . , . . . . . X . . . |
$$ | . 7 6 . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


This sequence (at least, :b40:) takes away White's second eye, but the aji against Black's big dragon is relatively large, and I'm concerned there's some trouble left here. As a result, I want the ability to run at "a" whilst making the Black group a target. The bottom White group is too weak to achieve this as things stand.

So, perhaps I should have simply made a second eye?

Click Here To Show Diagram Code
[go]$$Wcm39 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . X . . . . . . . . . . . . . X . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . O X X . . . . . , . . . . . , . . . |
$$ | . O O . . X . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . . X . . |
$$ | . 1 . . . . X . x . . . . . . . . . . |
$$ | . . . . X X . . . x . . . . . . . . . |
$$ | . . . X . O O . 2 , x . . . . X . . . |
$$ | . . a . . . . . . . x . . . . . . . . |
$$ | . . . . . . . . . . x . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


Aiming at "a", this seems to live quite comfortably, but Black attacking those 2 stones in my mind, creates a lot of potential difficulties for me. Even if I manage to live, Black building thickness around the "x" points radiates power towards the right hand side collection of Black stones. In my mind, if Black gets this, he can make me live very happily, and still be hugely favourable. EDIT: Actually, this is one of the reasons I didn't like Ed's direction of play very much in his variations. I think this bottom group is now more urgent than the lower left group (and particularly so in the variation we were discussing where I had a group on the left side). By preventing White's expansion at the bottom, I think Black can either build thickness in sente (to then attack the group in the lower left), or force White out through the gap, giving Black more strength to attack the left hand side with a higher chance of a kill.


So, I want to make sure I can't be easily attacked down here. The fact it gives me some opportunity to counter if Black tries to steal my eyespace makes me happy. If Black seals:

Click Here To Show Diagram Code
[go]$$Wcm39 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . X . . . . . . . . . . . . . X . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . O X X . . . . . , . . . . . , . . . |
$$ | . O O . . X . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . O O . O 2 . . . . . . . . . X . . |
$$ | . . . . . . B . . . . . . . . . . . . |
$$ | . . . . B B . . . . . . . . . . . . . |
$$ | . 3 . B . O O . . , . . . . . X . . . |
$$ | . . . . . . . . . 1 . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


I'm tempted to play this far out. The idea is to make points on both sides whilst making the marked Black stones relatively ineffective with regards to either territory or outside thickness (though I think Black has a good result on the left side between the top left hoshi and the side hoshi).

Why exactly where I played?

Click Here To Show Diagram Code
[go]$$Wcm39 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . X . . . . . . . . . . . . . X . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . O X X . . . . . , . . . . . , . . . |
$$ | . O O . . X . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . . X . . |
$$ | . . . . . . X . . . . . . . . . . . . |
$$ | . . . . X X . . . . . . . . . . . . . |
$$ | . . . X . O O . . , . . . . . X . . . |
$$ | . . . . . . . . 2 . 1 . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


I don't like Black's ability to split here. I think my move is already reasonably stretched, and I considered a simple one point jump. I'm also eyeing up giving Black enough of an extension that I can still invade the lower right later:



Click Here To Show Diagram Code
[go]$$Wcm39 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . X . . . . . . . . . . . . . X . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . O X X . . . . . , . . . . . , . . . |
$$ | . O O . . X . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . . X . . |
$$ | . . . . . . X . . . . . . . . . . . . |
$$ | . . . . X X . . . . . . . . . . . . . |
$$ | . . . X . O O . . , . . . . . X . . . |
$$ | . . . . . . . . . 1 . 2 . . . . 3 . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Re: Re:

Posted: Mon Feb 28, 2011 2:31 am
by topazg
hman wrote:@topazg, EdLee, Magicwand.

EdLee wrote:@topazg:
topazg wrote:You have very definitive opinions for a 4k.
Let the stones do the talking. :) I am super slow;
I drop 2-3 stones at "mickey mouse" tournament time controls. :-?


I'd like to see a topazg-Edlee Malkovich, with comments by Magicwand. Please? :)


Yeah, that sounds like it could be very interesting :twisted:

I'm actually not wanting to take on anything else for some time due to my life about to get a lot more busy. When I get the time to start another one, I'll ask Ed first, as you are the second person to talk to me that wants this matchup to happen :)

Re: Re:

Posted: Mon Feb 28, 2011 6:40 am
by Magicwand
hman wrote:@topazg, EdLee, Magicwand.
I'd like to see a topazg-Edlee Malkovich, with comments by Magicwand. Please? :)


that sounds intresting.
let me know when they start. i will love to comment on a high quality game.

Re: Re:

Posted: Mon Feb 28, 2011 6:52 am
by topazg
Magicwand wrote:
hman wrote:@topazg, EdLee, Magicwand.
I'd like to see a topazg-Edlee Malkovich, with comments by Magicwand. Please? :)


that sounds intresting.
let me know when they start. i will love to comment on a high quality game.


Whilst I wait for my personal life to calm down a bit, perhaps you two could play? magicwand vs EdLee would be really interesting too - you are both some of the most interesting commenter+players on the site :)

Re: Re:

Posted: Mon Feb 28, 2011 7:04 am
by Magicwand
topazg wrote:
... perhaps you two could play? magicwand vs EdLee would be really interesting too - you are both some of the most interesting commenter+players on the site :)


IMO, he is much stronger player than i am.
i probably crumble like a cookie.
perhaps after the game with Sol i will be opened for another serious game.

Re: 99. topazg vs sevis

Posted: Mon Feb 28, 2011 4:06 pm
by Sevis
Hm. So, the left white group is now considered settled... Interesting. I suppose I indeed can't approach it without anything nasty (such as it growing clear eyes) happening. Now to figure out what to do on the right side...

Click Here To Show Diagram Code
[go]$$Wcm39 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . X . . . . . . . . . . . . . X . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . O X X . . . . . , . . . . . , . . . |
$$ | . O O . . X . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . . X . . |
$$ | . . . . . . X . . . . . . . . . . . . |
$$ | . a . . X X . . d . . . . . . . . . . |
$$ | . . . X . O O . . , . . . . . X . . . |
$$ | . . . . c . . . . 1 . . b . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


All of these look like possible moves:
a -- threatens the top group, so this may be sente, and gives me a little more security in the corner.
b -- stops white from going to the right.
c -- threatens to slide under the bottom group and secure the corner a little. Sente, maybe?
d -- stops the bottom group from growing upwards.

I think strengthening the corner in sente is a good idea, but I'm not sure whether strengthening the white groups that much is worth it. Currently thinking a is best, although it seems like repeating the mistake I made last time.

In any case, needs more thought.

Re: 99. topazg vs sevis

Posted: Mon Feb 28, 2011 5:41 pm
by Bill Spight
Click Here To Show Diagram Code
[go]$$Wcm31 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . . . . . . . . . . . . . . . X . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . O X X . . . . . , . . . . . , . . . |
$$ | . O O . . X . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . . X . . |
$$ | . . . . . . X . . . . . . . . . . . . |
$$ | . . . . X X . . . . . . . . . . . . . |
$$ | . . . X . W W . . 8 . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


I don't think that anybody has addressed this question, but I think that :b38: should switch to an attack against the :wc: stones on the bottom side. Yes, Black leaves aji in the top left, but the actual :b38: looks overconcentrated, anyway. A pincer on the bottom side, however, is big. :)

Re: 99. topazg vs sevis

Posted: Mon Feb 28, 2011 5:46 pm
by topazg
Yeah, thanks Bill, I mentioned being worried about Black playing J4 last move in my last Further Thoughts post. Is playing it slightly looser more severe here?

Re: 99. topazg vs sevis

Posted: Mon Feb 28, 2011 6:22 pm
by Bill Spight
topazg wrote:Yeah, thanks Bill, I mentioned being worried about Black playing J4 last move in my last Further Thoughts post. Is playing it slightly looser more severe here?


No, it's not more severe. However, it is only 5 spaces from the Black position in the bottom right. Also, while a closer pincer is more severe, there are two things to worry about.

Click Here To Show Diagram Code
[go]$$Wcm31 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . . . . . . . . . . . . . . . X . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . O X X . . . . . , . . . . . , . . . |
$$ | . O O . . X . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . . X . . |
$$ | . . . . . . B . . . . . . . . . . . . |
$$ | . . . . X X . 9 . . . . . . . . . . . |
$$ | . . . X . W W . 8 , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


:w39: pushes through a narrow gap. That is stronger than pushing through a wider gap.

Click Here To Show Diagram Code
[go]$$Bcm38 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . . . . . . . . . . . . . . . X . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . O X X . . . . . , . . . . . , . . . |
$$ | . O O . . X . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . . X . . |
$$ | . . . . . . X . . . . . . . . . . . . |
$$ | . . . . X X . . . . . . . . . . . . . |
$$ | . . . X . W W . 1 4 . . . . . X . . . |
$$ | . . . . . . . . 2 3 . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


This crosscut leads to complications, and White may be able to throw the :wc: stones away. :)

Re: 99. topazg vs sevis

Posted: Mon Feb 28, 2011 6:30 pm
by topazg
Bill Spight wrote::w39: pushes through a narrow gap. That is stronger than pushing through a wider gap.

Click Here To Show Diagram Code
[go]$$Bcm38 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . . . . . . . . . . . . . . . X . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . O X X . . . . . , . . . . . , . . . |
$$ | . O O . . X . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . . X . . |
$$ | . . . . . . X . . . . . . . . . . . . |
$$ | . . . . X X . . . . . . . . . . . . . |
$$ | . . . X . W W . 1 4 . . . . . X . . . |
$$ | . . . . . . . . 2 3 . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


This crosscut leads to complications, and White may be able to throw the :wc: stones away. :)


Yes, that makes a lot of sense, I suppose I had thought that the further crosscut was even harder for Black to get a good result from:

Click Here To Show Diagram Code
[go]$$Bcm38 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . O . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . O O . . |
$$ | . X O X X . . X . , . . . O . X . . . |
$$ | . . X . . X . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . . . . . . . . . . . . . . . X . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . O X X . . . . . , . . . . . , . . . |
$$ | . O O . . X . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . O O . O . . . . . . . . . . X . . |
$$ | . . . . . . X . . . . . . . . . . . . |
$$ | . . . . X X . . . . . . . . . . . . . |
$$ | . . . X . W W . . 1 4 . . . . X . . . |
$$ | . . . . . . . . . 2 3 . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


However, I see that throwing away the marked White stones is now harder, which means Black's ability to get seal in for thickness is good. The further pincer looks better in almost all regards, it's a blind spot of mine it seems (What, we can fight? Then pincer close and lets fight hard, we have stones around to help!) :)
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