Life In 19x19 :: Any hope for White here? 9x9

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Any hope for White here? 9x9 http://www.lifein19x19.com/viewtopic.php?f=11&t=7951	Page 1 of 1

Author:	SuprunP [ Sat Feb 23, 2013 11:13 am ]
Post subject:	Any hope for White here? 9x9
Is there any hope for White here? Click Here To Show Diagram Code `[go]$$Bc Is there any hope for White here? $$ --------------------- $$ \| . . . . . . . . . \| $$ \| . X O O X X X X . \| $$ \| . 1 , O O X O . . \| $$ \| . O O O X O O X . \| $$ \| O X X X X X X O . \| $$ \| . X . . X . O . . \| $$ \| . . O . O O , . . \| $$ \| . . . . . . . . . \| $$ \| . . . . . . . . . \| $$ ---------------------[/go]` Thanks.

Author:	SuprunP [ Sat Feb 23, 2013 12:25 pm ]
Post subject:	Re: Any hope for White here? 9x9
jts wrote: To win or to live? To at least live, as far as I can see it.

Author: billywoods [ Sat Feb 23, 2013 1:15 pm ]

Post subject: Re: Any hope for White here? 9x9

It seems white can ask for seki, but black can decline and force a ko. Here are the few variations I read out:

Click Here To Show Diagram Code: [go]$$W Ko (or else white dies) $$ --------------------- $$ | . 1 . . . . . . . | $$ | . X O O X X X X . | $$ | 2 X , O O X O . . | $$ | . O O O X O O X . | $$ | O X X X X X X O . | $$ | . X . . X . O . . | $$ | . . O . O O , . . | $$ | . . . . . . . . . | $$ | . . . . . . . . . | $$ ---------------------[/go]

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

Click Here To Show Diagram Code: [go]$$W Black offers a ko... $$ --------------------- $$ | . . . . . . . . . | $$ | 2 X O O X X X X . | $$ | 1 X , O O X O . . | $$ | . O O O X O O X . | $$ | O X X X X X X O . | $$ | . X . . X . O . . | $$ | . . O . O O , . . | $$ | . . . . . . . . . | $$ | . . . . . . . . . | $$ ---------------------[/go]

Click Here To Show Diagram Code: [go]$$W Different move order, reverts to a previous ko $$ --------------------- $$ | . 3 . 4 . . . . . | $$ | 1 X O O X X X X . | $$ | 2 X , O O X O . . | $$ | 5 O O O X O O X . | $$ | O X X X X X X O . | $$ | . X . . X . O . . | $$ | . . O . O O , . . | $$ | . . . . . . . . . | $$ | . . . . . . . . . | $$ ---------------------[/go]

Author: Dragon Pie [ Sat Feb 23, 2013 4:10 pm ]

Post subject: Re: Any hope for White here? 9x9

Click Here To Show Diagram Code: [go]$$W Ko $$ --------------------- $$ | . 3 . 4 . . . . . | $$ | 2 X O O X X X X . | $$ | 1 X 5 O O X O . . | $$ | . O O O X O O X . | $$ | O X X X X X X O . | $$ | . X . . X . O . . | $$ | . . O . O O , . . | $$ | . . . . . . . . . | $$ | . . . . . . . . . | $$ ---------------------[/go]

How is this a ko?

This looks best to me as black gets to take first.

Click Here To Show Diagram Code: [go]$$W Ko $$ --------------------- $$ | . 1 . 2 . . . . . | $$ | 3 X O O X X X X . | $$ | 4 X . O O X O . . | $$ | 5 O O O X O O X . | $$ | O X X X X X X O . | $$ | . X . . X . O . . | $$ | . . O . O O , . . | $$ | . . . . . . . . . | $$ | . . . . . . . . . | $$ ---------------------[/go]

Author:	jts [ Sat Feb 23, 2013 5:46 pm ]
Post subject:	Re: Any hope for White here? 9x9
Dragon Pie wrote: Click Here To Show Diagram Code `[go]$$W Ko $$ --------------------- $$ \| . 3 . 4 . . . . . \| $$ \| 2 X O O X X X X . \| $$ \| 1 X 5 O O X O . . \| $$ \| . O O O X O O X . \| $$ \| O X X X X X X O . \| $$ \| . X . . X . O . . \| $$ \| . . O . O O , . . \| $$ \| . . . . . . . . . \| $$ \| . . . . . . . . . \| $$ ---------------------[/go]` How is this a ko? Yeah, isn't 5 just removing a lib? If b wants to avoid seki he needs to start the ko with 4.

Author:	billywoods [ Sat Feb 23, 2013 5:52 pm ]
Post subject:	Re: Any hope for White here? 9x9
jts wrote: Dragon Pie wrote: Click Here To Show Diagram Code `[go]$$W Ko $$ --------------------- $$ \| . 3 . 4 . . . . . \| $$ \| 2 X O O X X X X . \| $$ \| 1 X 5 O O X O . . \| $$ \| . O O O X O O X . \| $$ \| O X X X X X X O . \| $$ \| . X . . X . O . . \| $$ \| . . O . O O , . . \| $$ \| . . . . . . . . . \| $$ \| . . . . . . . . . \| $$ ---------------------[/go]` How is this a ko? Yeah, isn't 5 just removing a lib? If b wants to avoid seki he needs to start the ko with 4. Oops. Thanks! Not sure how 4 and 5 got there - I must have got confused typing the diagrams.

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