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Offline cyclops
 Post subject: jaseki
Post #1 Posted: Sun Dec 01, 2013 6:18 pm 
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Click Here To Show Diagram Code
[go]$$Wc
$$ +-------------------+
$$ | . . . . . . . . . |
$$ | . . . . . . . . . |
$$ | . . , . , . , . . |
$$ | O O O O . . . . . |
$$ | O X X O O O , . . |
$$ | X . X X X O . . . |
$$ | . . X O X O , . . |
$$ | . . . . X O . . . |
$$ | . . . . X O . . . |
$$ +-------------------+[/go]


If B gets more than 7 points out of this corner he will win the game. ( The outside is not given, but W lives there) It is the end of the tournament and B is waiting for Jasiek's pass to start with his well deserved Pilsen drinks. Then he is hit by a jaseki.

endposition W+5:

Click Here To Show Diagram Code
[go]$$Wc
$$ +-------------------+
$$ | . . . . . . . . . |
$$ | . . . . . . . . . |
$$ | . . , . , . , . . |
$$ | O O O O . . . . . |
$$ | O X X O O O , . . |
$$ | X 2 X X X O . . . |
$$ | 1 7 X b X O , . . |
$$ | a 3 6 c X O . . . |
$$ | 5 . 8 0 X O . . . |
$$ +-------------------+[/go]
4@a,9@c next Wb, Bc -> seki & W+5


the game

Question: after W1 is there a neinseki ?

edit: misplaced 7 in the endposition

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Last edited by cyclops on Mon Dec 02, 2013 4:35 am, edited 6 times in total.
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Offline tchan001
 Post subject: Re: jaseki
Post #2 Posted: Sun Dec 01, 2013 6:28 pm 
Gosei
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Jaseki? Is that a term for a joseki originated by RJ?

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Offline cyclops
 Post subject: Re: jaseki
Post #3 Posted: Sun Dec 01, 2013 6:29 pm 
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tchan001 wrote:
Jaseki? Is that a term for a joseki originated by RJ?

Yes, but at the end of the game!

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Offline Dusk Eagle
 Post subject: Re: jaseki
Post #4 Posted: Sun Dec 01, 2013 6:59 pm 
Gosei
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Click Here To Show Diagram Code
[go]$$Wc
$$ +-------------------+
$$ | . . . . . . . . . |
$$ | . . . . . . . . . |
$$ | . . , . , . , . . |
$$ | O O O O . . . . . |
$$ | O X X O O O , . . |
$$ | X 2 X X X O . . . |
$$ | 1 b X O X O , . . |
$$ | . 3 4 . X O . . . |
$$ | . . a . X O . . . |
$$ +-------------------+[/go]

What now? If white 'a' then black 'b'.

Edit:
I suppose it could result in a sending-2-returning-1/ko, which given the right ruleset and the existence of infinite unremovable ko threats elsewhere could cause problems. At least under Japanese rules, which I know best, there wouldn't be any problems for black.
Click Here To Show Diagram Code
[go]$$Wc
$$ +-------------------+
$$ | . . . . . . . . . |
$$ | . . . . . . . . . |
$$ | . . , . , . , . . |
$$ | O O O O . . . . . |
$$ | O X X O O O , . . |
$$ | X 2 X X X O . . . |
$$ | 1 6 X O X O , . . |
$$ | . 3 4 8 X O . . . |
$$ | 7 . 5 9 X O . . . |
$$ +-------------------+[/go]

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Last edited by Dusk Eagle on Sun Dec 01, 2013 7:11 pm, edited 2 times in total.
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Offline ez4u
 Post subject: Re: jaseki
Post #5 Posted: Sun Dec 01, 2013 7:08 pm 
Oza
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Dusk Eagle beat me to it.
My idea was like this but his is more elegant perhaps. Basically Black's throw in at 4 in the game helps White and makes seki possible.
Click Here To Show Diagram Code
[go]$$Wc White shortage of liberties
$$ +-------------------+
$$ | . . . . . . . . . |
$$ | . . . . . . . . . |
$$ | . . , . , . , . . |
$$ | O O O O . . . . . |
$$ | O X X O O O , . . |
$$ | X 2 X X X O . . . |
$$ | 1 4 X O X O , . . |
$$ | 6 3 5 7 X O . . . |
$$ | . 8 . . X O . . . |
$$ +-------------------+[/go]


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

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Offline Bill Spight
 Post subject: Re: jaseki
Post #6 Posted: Sun Dec 01, 2013 8:54 pm 
Honinbo

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Just to add a couple of variations. :)

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


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

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Offline cyclops
 Post subject: Re: jaseki
Post #7 Posted: Mon Dec 02, 2013 4:39 am 
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I guess RJ had read it all before he played :w1: , hadn't you Robert? Anyway congrats with your 2d place.

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Offline asura
 Post subject: Re: jaseki
Post #8 Posted: Mon Dec 02, 2013 4:44 am 
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cyclops wrote:
tchan001 wrote:
Jaseki? Is that a term for a joseki originated by RJ?

Yes, but at the end of the game!
:lol:
I'd vote for a misstype, but if done by intention it would be a very cool term! :)
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Offline cyclops
 Post subject: Re: jaseki
Post #9 Posted: Mon Dec 02, 2013 6:16 am 
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asura wrote:

I'd vote for a misstype, but if done by intention it would be a very cool term! :)

I never mosstype!

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Offline RobertJasiek
 Post subject: Re: jaseki
Post #10 Posted: Mon Dec 02, 2013 6:52 am 
Judan

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It was in round 5 of Berlin's Kranich tournament.

http://www.dgob.de/tourn/tourn.cgi?f=13 ... t&mode=cml
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Offline cyclops
 Post subject: Re: jaseki
Post #11 Posted: Tue Dec 03, 2013 4:24 pm 
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For B to get 7 pt's in the corner this will do:
Click Here To Show Diagram Code
[go]$$Wc
$$ +-------------------+
$$ | . . . . . . . . . |
$$ | . . . . . . . . . |
$$ | . . , . , . , . . |
$$ | O O O O . . . . . |
$$ | O X X O O O , . . |
$$ | 5 3 X X X O . . . |
$$ | 1 4 X O X O , . . |
$$ | 2 . 6 . X O . . . |
$$ | . . . . X O . . . |
$$ +-------------------+[/go]

But after checking the komi it seems to result in jigo.

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