jaseki

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cyclops
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jaseki

Post by cyclops »

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
Last edited by cyclops on Mon Dec 02, 2013 4:35 am, edited 6 times in total.
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Re: jaseki

Post by tchan001 »

Jaseki? Is that a term for a joseki originated by RJ?
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Re: jaseki

Post by cyclops »

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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Re: jaseki

Post by Dusk Eagle »

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]
Last edited by Dusk Eagle on Sun Dec 01, 2013 7:11 pm, edited 2 times in total.
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Re: jaseki

Post by ez4u »

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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Re: jaseki

Post by Bill Spight »

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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Re: jaseki

Post by cyclops »

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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Re: jaseki

Post by asura »

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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Re: jaseki

Post by cyclops »

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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Re: jaseki

Post by RobertJasiek »

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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Re: jaseki

Post by cyclops »

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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