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 Post subject: Re: 115 - robinz v. 1986
Post #301 Posted: Sun Jun 26, 2011 6:12 am 
Tengen
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I was kinda hoping to see robinz looking at this:

Click Here To Show Diagram Code
[go]$$Bc White threats?
$$ +---------------------------------------+
$$ | . . . . . . . . . . . O 4 . . . . . . |
$$ | . . . . . . . O X . 5 O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X . . . X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X O O 1 |
$$ | . . O X . . . . . . . . . . . X X X 6 |
$$ | . O X O O O O . . . . . . . X . X O 3 |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X 7 X X X O 9 |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O . |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O 2 X 0 X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . 8 O O . |
$$ +---------------------------------------+[/go]


Click Here To Show Diagram Code
[go]$$Bc White threats?
$$ +---------------------------------------+
$$ | . . . . . . . . . . 5 O O . . . . . . |
$$ | . . . . . . . O X . X O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X . . . X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X C C X |
$$ | . . O X . . . . . . . . . . . X X X 4 |
$$ | . O X O O O O . . . . . . . X . X O 7 |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O C |
$$ | . . X X X . . . . . . . X O O O X O 3 |
$$ | . . . O . . . . . . . O O X X O O O 2 |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X O X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O 6 |
$$ +---------------------------------------+[/go]


:b1: @ :b7:

Does White have any threats any more?

Although, is Black is just behind if something like:

Click Here To Show Diagram Code
[go]$$Bc What happens now ?
$$ +---------------------------------------+
$$ | . . . . . . 0 7 . . X O O . . . . . . |
$$ | . . . . . 9 8 O X . X O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X . a . X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X . |
$$ | . O X O O O O . . . . . . . X . X . 1 |
$$ | . O X X . X X X . . . . . X . X . . . |
$$ | . a X , X . . . . , O . X X X X X . 3 |
$$ | . . X X X . . . . . . . X . . . X . X |
$$ | . . . O . . . . . . . O O X X . . . . |
$$ | . . O . X X X X 5 X . . . O X . X . . |
$$ | . O O . X O O X O 4 6 . . O X X X X . |
$$ | X X O X . . . O X X . . O . O X . X . |
$$ | . . X O O O . . O 2 . . . O O X O X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]


Click Here To Show Diagram Code
[go]$$Bc What happens now ?
$$ +---------------------------------------+
$$ | . . . . . . O X . . X O O . . . . . . |
$$ | . . . . . X O O X . X O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X 2 1 3 X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X . |
$$ | . O X O O O O . . . . . . . X . X . X |
$$ | . O X X . X X X . . . . . X . X . . . |
$$ | . . X , X . . . . , O . X X X X X . X |
$$ | . . X X X . . . . . . . X . . . X . X |
$$ | . . . O . . . . . . . O O X X . . . . |
$$ | . . O . X X X X X X . . . O X . X . . |
$$ | . O O . X O O X O O O . . O X X X X . |
$$ | X X O X . . . O X X . . O . O X . X . |
$$ | . . X O O O . . O O . . . O O X O X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]


or

Click Here To Show Diagram Code
[go]$$Bc What happens now ?
$$ +---------------------------------------+
$$ | . . . . . . . 7 . . X O O . . . . . . |
$$ | . . . . . 8 9 O X . X O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X . . . X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X . |
$$ | . O X O O O O . . . . . . . X . X . 1 |
$$ | . O X X . X X X . . . . . X . X . . . |
$$ | . a X , X . . . . , O . X X X X X . 3 |
$$ | . . X X X . . . . . . . X . . . X . X |
$$ | . . . O . . . . . . . O O X X . . . . |
$$ | . . O . X X X X 5 X . . . O X . X . . |
$$ | . O O . X O O X O 4 6 . . O X X X X . |
$$ | X X O X . . . O X X . . O . O X . X . |
$$ | . . X O O O . . O 2 . . . O O X O X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]


or

Click Here To Show Diagram Code
[go]$$Bc What happens now ?
$$ +---------------------------------------+
$$ | . . . . . . 8 7 . . X O O . . . . . . |
$$ | . . . . . . . O X . X O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X 0 9 1 X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X . |
$$ | . O X O O O O . . . . . . . X . X . 1 |
$$ | . O X X . X X X . . . . . X . X . . . |
$$ | . a X , X . . . . , O . X X X X X . 3 |
$$ | . . X X X . . . . . . . X . . . X . X |
$$ | . . . O . . . . . . . O O X X . . . . |
$$ | . . O . X X X X 5 X . . . O X . X . . |
$$ | . O O . X O O X O 4 6 . . O X X X X . |
$$ | X X O X . . . O X X . . O . O X . X . |
$$ | . . X O O O . . O 2 . . . O O X O X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]

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 Post subject: Re: 115 - robinz v. 1986
Post #302 Posted: Sun Jun 26, 2011 9:04 am 
Lives in gote
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Liked others: 50
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Rank: malk-5k
KGS: go1986
Click Here To Show Diagram Code
[go]$$Wcm172 Prisoner Count :w4: :b2:
$$ +---------------------------------------+
$$ | . . . . . . . . . . . O . . . . . . . |
$$ | . . . . . . . O X . . O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X . . . X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X O O . |
$$ | . . O X . . . . . . . . . . . X X X O |
$$ | . O X O O O O . . . . . . . X . X O . |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O . |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O . |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O 1 X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . . O O . |
$$ +---------------------------------------+[/go]


Cool lets go!

take a liberty, why this one? well 
he can take p4 in sente so im removing that option from him
, this ko fight dosen't look to good for me i have to make sure my threats are big enough to keep it going so thats what im doing now,
*thinking*

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 Post subject: Re: 115 - robinz v. 1986
Post #303 Posted: Sun Jun 26, 2011 9:30 am 
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KGS: robinz
Click Here To Show Diagram Code
[go]$$Bcm173 Prisoner Count :w4: :b2:
$$ +---------------------------------------+
$$ | . . . . . . . . . . . O . . . . . . . |
$$ | . . . . . . . O X . . O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X . . . X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X O O . |
$$ | . . O X . . . . . . . . . . . X X X O |
$$ | . O X O O O O . . . . . . . X . X O . |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O 1 |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O . |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . . O O . |
$$ +---------------------------------------+[/go]


The one-way street it is, then.

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 Post subject: Re: 115 - robinz v. 1986
Post #304 Posted: Sun Jun 26, 2011 10:15 pm 
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Rank: malk-5k
KGS: go1986
Click Here To Show Diagram Code
[go]$$Wcm174 :b4: :w2:
$$ +---------------------------------------+
$$ | . . . . . . . . . . . O . . . . . . . |
$$ | . . . . . . . O X . . O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X . . . X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X O O . |
$$ | . . O X . . . . . . . . . . . X X X O |
$$ | . O X O O O O . . . . . . . X . X O . |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O . |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . 1 O O . |
$$ +---------------------------------------+[/go]


now i can play t1, after this i assume he is going to start the ko 

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 Post subject: Re: 115 - robinz v. 1986
Post #305 Posted: Mon Jun 27, 2011 12:33 pm 
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Click Here To Show Diagram Code
[go]$$Bcm175 prisoners: :b2: :w6:
$$ +---------------------------------------+
$$ | . . . . . . . . . . . O . . . . . . . |
$$ | . . . . . . . O X . . O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X . . . X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . 1 |
$$ | . . O X . . . . . . . . . . . X X X O |
$$ | . O X O O O O . . . . . . . X . X O . |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O . |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O . |
$$ +---------------------------------------+[/go]


I'm getting pessimistic again - I'm seeing plenty more huge ko threats for white (for example either atari on the D5 stone, or B8 (or similar in that area) threatening to connect out. And I expect white will get to follow up on one of these ko threats. Oh well, it's a one-way road for now, so let's at least play it out and then see if anything turns up.

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 Post subject: Re: 115 - robinz v. 1986
Post #306 Posted: Mon Jun 27, 2011 4:53 pm 
Honinbo
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robinz (after this fight),
robinz wrote:
I'm getting pessimistic again - I'm seeing plenty more huge ko threats for white
Yes, of course, this ko is a very bad result for B. After the game you can read the hidden comments
to see where you went wrong. One of your "no thinking" moves was a culprit. :)

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 Post subject: Re: 115 - robinz v. 1986
Post #307 Posted: Tue Jun 28, 2011 4:07 am 
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Click Here To Show Diagram Code
[go]$$Wcm176 Prisoner Count :b4: :w2:
$$ +---------------------------------------+
$$ | . . . . . . . . . . . O . . . . . . . |
$$ | . . . . . . . O X . . O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X . . . X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X O |
$$ | . O X O O O O . . . . . . . X . X O . |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O . |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O 1 |
$$ +---------------------------------------+[/go]


here goes nothing, i got my ko threats ready and my spirit is up today

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 Post subject: Re: 115 - robinz v. 1986
Post #308 Posted: Tue Jun 28, 2011 2:07 pm 
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Can you please stop messing with the prisoner count? :)

Click Here To Show Diagram Code
[go]$$Bcm177 Prisoner Count :w7: :b2:
$$ +---------------------------------------+
$$ | . . . . . . . . . . . O . . . . . . . |
$$ | . . . . . . . O X . . O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X . . . X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X . |
$$ | . O X O O O O . . . . . . . X . X O 1 |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O . |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]


And so the ko, probably my last chance saloon (in that, at the moment, I think I need my opponent to make a huge mistake, which I'm not expecting - although I await with interest reading Ed Lee's comments after the game :)), begins...

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Post #309 Posted: Tue Jun 28, 2011 2:23 pm 
Honinbo
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robinz wrote:
Can you please stop messing with the prisoner count? :)
:mrgreen:

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 Post subject: Re: 115 - robinz v. 1986
Post #310 Posted: Tue Jun 28, 2011 10:35 pm 
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Click Here To Show Diagram Code
[go]$$Wcm178 Prisoner Count :b7: :w2:
$$ +---------------------------------------+
$$ | . . . . . . . . 1 . . O . . . . . . . |
$$ | . . . . . . . O X . . O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X . . . X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X . |
$$ | . O X O O O O . . . . . . . X . X O X |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O . |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]


ko threat number 1, he is definitely going to answer here my follow up k19 will kill his group

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 Post subject: Re: 115 - robinz v. 1986
Post #311 Posted: Tue Jun 28, 2011 11:25 pm 
Gosei
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I'd take, at least in a timed game where I only have as long to think as I've just spent. Looks like a smaller ko starts around H16 (which must be regarded as some kind of success). White's biggest threat was/is C2.

Now I'm sure we'll hear the real state of affairs from ez4u :)

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 Post subject: Re: 115 - robinz v. 1986
Post #312 Posted: Tue Jun 28, 2011 11:59 pm 
Oza
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Loons wrote:
I'd take, at least in a timed game where I only have as long to think as I've just spent. Looks like a smaller ko starts around H16 (which must be regarded as some kind of success). White's biggest threat was/is C2.

Now I'm sure we'll hear the real state of affairs from ez4u :)


Nope! I had a quick look and took 1986's word for it = the last thing any Go player should do :oops:

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 Post subject: Re: 115 - robinz v. 1986
Post #313 Posted: Wed Jun 29, 2011 11:08 am 
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Um, you did it again. I presume by accident, but I'm not sure how you can flip the colours by accident :-? ...

Click Here To Show Diagram Code
[go]$$Bcm178 Prisoner Count :w7: :b2:
$$ +---------------------------------------+
$$ | . . . . . . . . O 1 . O . . . . . . . |
$$ | . . . . . . . O X . . O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X . . . X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X . |
$$ | . O X O O O O . . . . . . . X . X O X |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O . |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]


Hmm, OK, I expected a ko threat in that region of the board, but hadn't thought of that precise one. Of course I must respond. I considered a few responses for a while, including K18 and L18, but all left follow-up ko threats, so I figured I might as well pick the one that looks best from the point of view of endgame points. The problem I have with this move - as with all the other responses I considered - is that I don't think I can remove all future white ko threats in the region in just one more move. On the other hand, capturing J19, if I get to do it, threatens to perhaps save F17, and if I can do that I may be able to afford giving up the N18 chain. Probably not, but I welcome complications of this kind when I think that, if we just have a normal ko fight, I'm destined to lose (the game, I mean).

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 Post subject: Re: 115 - robinz v. 1986
Post #314 Posted: Wed Jun 29, 2011 9:55 pm 
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Click Here To Show Diagram Code
[go]$$Wcm180 Prisoner Count :b7: :w3:
$$ +---------------------------------------+
$$ | . . . . . . . . O X . O . . . . . . . |
$$ | . . . . . . . O X . . O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X . . . X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X 1 |
$$ | . O X O O O O . . . . . . . X . X O . |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O . |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]


you got the colors wrong for your count this is right though i guarantee it

retake the ko here, this is getting interesting,
now he has to play or ko threat or tenuki, personally i would play p2 as B

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 Post subject: Re: 115 - robinz v. 1986
Post #315 Posted: Wed Jun 29, 2011 10:43 pm 
Oza
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Click Here To Show Diagram Code
[go]$$Wcm178 Prisoner Count
$$ +---------------------------------------+
$$ | . . . . . . . . 1 3 8 O . . . . . . . |
$$ | . . . . . . . O X 0 9 O X X X . . . . |
$$ | . . . . O X 7 O X . X X O O O O O O . |
$$ | . . . O . X 5 4 6 X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X . |
$$ | . O X O O O O . . . . . . . X . X O X |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O 2 |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]


Click Here To Show Diagram Code
[go]$$Wcm178 Prisoner Count
$$ +---------------------------------------+
$$ | . . . . . . . . 1 3 7 O . . . . . . . |
$$ | . . . . . . 0 O X . . O X X X . . . . |
$$ | . . . . O X 8 O X . X X O O O O O O . |
$$ | . . . O . X 5 4 6 X X O O X X X X O . |
$$ | . . . . . . 9 O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X . |
$$ | . O X O O O O . . . . . . . X . X O X |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O 2 |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]


Click Here To Show Diagram Code
[go]$$Wcm188 Prisoner Count
$$ +---------------------------------------+
$$ | . . . . . . 4 1 O O O O 6 . . . . . . |
$$ | . . . . . . X O X 2 . O X X X . . . . |
$$ | . . . . O X X O X . X X O O O O O O . |
$$ | . . . O . X O X X X X O O X X X X O . |
$$ | . . . . . . O O 3 5 O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X . |
$$ | . O X O O O O . . . . . . . X . X O X |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O X |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]


Click Here To Show Diagram Code
[go]$$Wcm178 Prisoner Count
$$ +---------------------------------------+
$$ | . . . . . . . . 1 3 . O . . . . . . . |
$$ | . . . . . . 0 O X . . O X X X . . . . |
$$ | . . . . O X 8 O X . X X O O O O O O . |
$$ | . . . O . X 7 4 6 X X O O X X X X O . |
$$ | . . . . . . 9 O 5 . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X . |
$$ | . O X O O O O . . . . . . . X . X O X |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O 2 |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]


Click Here To Show Diagram Code
[go]$$Wcm188 Prisoner Count
$$ +---------------------------------------+
$$ | . . . . . . 4 1 O O 5 O 6 . . . . . . |
$$ | . . . . . . X O X 2 . O X X X . . . . |
$$ | . . . . O X X O X . X X O O O O O O . |
$$ | . . . O . X O X X X X O O X X X X O . |
$$ | . . . . . . O O O 3 O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X . |
$$ | . O X O O O O . . . . . . . X . X O X |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O X |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]


Is there even a ko? (And yes, I looked at W90 at G19... doesn't seem to work, though: B fills in one more liberty, then responds to f19 at e18, or f18 with L18.)

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 Post subject: Re: 115 - robinz v. 1986
Post #316 Posted: Wed Jun 29, 2011 11:52 pm 
Oza
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Obs:
Let's see if we can catch up a little here. First off it looks like Loons called in correctly on 1986's ko threat
Click Here To Show Diagram Code
[go]$$Wc
$$ +---------------------------------------+
$$ | . . . . . . . . 1 3 . O . . . . . . . |
$$ | . . . . . . . O X . . O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X 5 4 9 X X O O X X X X O . |
$$ | . . . . . . 8 O 6 . O X X O . . X X X |
$$ | . . O . O . . . 7 O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X . |
$$ | . O X O O O O . . . . . . . X . X O X |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O 2 |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O 0 . . . O O X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]

If :w7:, Black starts a direct ko immediately at :b8:. I think my first ko threat for Black would be :b10:.

Click Here To Show Diagram Code
[go]$$Wc
$$ +---------------------------------------+
$$ | . . . . . . . . 1 3 . O . . . . . . . |
$$ | . . . . . . . O X . . O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X 5 4 . X X O O X X X X O . |
$$ | . . . . . . . O 6 . O X X O . . X X X |
$$ | . . O . O . . 7 8 O . . O . O X . . X |
$$ | . . O X . . . 0 9 a . . . . . X X X . |
$$ | . O X O O O O . . . . . . . X . X O X |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O 2 |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X . X X |
$$ | X X X O X O . . . . O . . O . O X X . |
$$ | . . . X X O . . . . . . . . . O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]

So White holds back with this :w7:. Black keeps on coming and after :w9: cuts at :b10:(or "a"?). I find it hard to say what is the best way to play here or how it will all work out. However, Black definitely has a more interesting situation than in the game IMHO. Good call Loons! :)

Anyway Black answered the threat and White retook the ko. How about the suggestion of playing P2 as a ko threat?

Click Here To Show Diagram Code
[go]$$Wc :b4: at the marked stone; :b6: above :w5:; :w7: at :w1
$$ +---------------------------------------+
$$ | . . . . . . . . O X . O . . . . . . . |
$$ | . . . . . . . O X . . O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X . . . X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X 1 |
$$ | . O X O O O O . . . . . . . X . X O B |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O 5 |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X 3 X X |
$$ | X X X O X O . . . . O . . O 8 O X X 9 |
$$ | . . . X X O . . . . . . . . 2 O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]

Remember the earlier comment on internal ko threats? White does not connect but instead answers :b2: with :w3:. This reduces the liberties on the lower Black group and makes capturing the two Black stones inside the White group an internal ko threat for White (expanding the group's liberties). Black has to throw in and White can recapture the ko. Of course White has to be committed to ignoring any Black ko threat after :w9:. So Black has no internal ko threats and has to look elsewhere. Oops! The situation does not look good here for Black.

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- Marcus Aurelius; Meditations, VIII 21


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 Post subject: Re: 115 - robinz v. 1986
Post #317 Posted: Thu Jun 30, 2011 12:49 am 
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For the prisoner count business a neutral voice:
You need a convent ion to fix if the number in black is the number of stones in black: :b3: are the stones captured by black or the nuéber of captured black stone.

It seems that the convention is that the number is the number of stones captured
:w62: -- :w4: , W capture a stone but forgets to add it to the prisoners
:b63: / :w64: / :b65: -- :w4: :b1: (correct)
:w66: :w4: -- :b4: ??
:b67: -- :b1: :w4: (inversion)
:w68: /:b69:: -- :w4: :b1: (back to normal)
:w70: -- :w4: :b2: (W captures and add to the B stones captured --correct)


move :w72: / :b73: -- :w4: :b2:
move :w74: 1986 switch colors to :b4: :w2:

Then robin keeps the convention at :b75:, captured 2 with stones to bring it to :w6: :b2: BUT facetiously inverted the order to :b2: :w6: which confuses the matter
for
:w76: -- 1986 kept the wrong b4: :w2:
:b77: -- :w7: :b2: (+ 1 capture from B added to the w stones)
1986 corrects the number BUT still invert the colors to
:w78: -- :b7: :w2:
:b79: -- :w7: :b2:
:w80: -- :b7: :w3: (+1 W capture added to the W stones which is not the convention)

So it seems that indeed robin is the one respecting the color convention

Your count should be :w7: :b3:

can t help with the ko (good luck to both its hard) but here are your prisoner count anyway

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 Post subject: Re: 115 - robinz v. 1986
Post #318 Posted: Thu Jun 30, 2011 1:19 am 
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@ez4u:
Does that mean that it would be better for B to just protect at C2, removing all ko threat in the area, rather than playing a ko threat of his own ?
because
i B plays another ko thread, W answer, B take the ko, W play C2 he will have at least 1 more ko threat at E1 in the area.
As this is an approach ko for W maybe removing 2 ko threat is better than playing 1 threat for B?

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 Post subject: Re: 115 - robinz v. 1986
Post #319 Posted: Thu Jun 30, 2011 1:25 am 
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Does Black even _have_ a ko threat here?

Click Here To Show Diagram Code
[go]$$Wcm180 Prisoner Count :b7: :w3:
$$ +---------------------------------------+
$$ | . . . . . . . . O X . O . . . . . . . |
$$ | . . . . . . . O X . . O X X X . . . . |
$$ | . . . . O X . O X . X X O O O O O O . |
$$ | . . . O . X . . . X X O O X X X X O . |
$$ | . . . . . . . O . . O X X O . . X X X |
$$ | . . O . O . . . . O . . O . O X . . X |
$$ | . . O X . . . . . . . . . . . X X X 1 |
$$ | . O X O O O O . . . . . . . X . X O . |
$$ | . O X X . X X X . . . . . X . X O O O |
$$ | . . X , X . . . . , O . X X X X X O X |
$$ | . . X X X . . . . . . . X O O O X O X |
$$ | . . . O . . . . . . . O O X X O O O . |
$$ | . . O . X X X X . X . . . O X O X O O |
$$ | . O O . X O O X O . . . . O X X X X O |
$$ | X X O X . . . O X X . . O . O X . X O |
$$ | . . X O O O . . O , . . . O O X 3 X X |
$$ | X X X O X O . . . . O . . O 4 O X X 5 |
$$ | . . . X X O . . . . . . . . 2 O X O X |
$$ | . . . . . . . . . . . . . . . O O O O |
$$ +---------------------------------------+[/go]


I simply can't see anything White would respond to.


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 Post subject: Re: 115 - robinz v. 1986
Post #320 Posted: Thu Jun 30, 2011 1:48 am 
Oza
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perceval wrote:
@ez4u:
Does that mean that it would be better for B to just protect at C2, removing all ko threat in the area, rather than playing a ko threat of his own ?
because
i B plays another ko thread, W answer, B take the ko, W play C2 he will have at least 1 more ko threat at E1 in the area.
As this is an approach ko for W maybe removing 2 ko threat is better than playing 1 threat for B?


Actually C2 is not a threat to capture the whole corner. Read carefully! ;-)

As far as I can see, White should ignore any Black threat and play R4. That creates an internal ko threat so the ko cycles again and White captures the right side. Black effectively gets three plays in a row but I do not see how he can win.

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"Short-lived are both the praiser and the praised, and rememberer and the remembered..."
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