Life In 19x19 :: jaseki

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jaseki http://www.lifein19x19.com/viewtopic.php?f=10&t=9462	Page 1 of 1

Author:	cyclops [ Sun Dec 01, 2013 6:18 pm ]
Post subject:	jaseki
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

Author:	tchan001 [ Sun Dec 01, 2013 6:28 pm ]
Post subject:	Re: jaseki
Jaseki? Is that a term for a joseki originated by RJ?

Author:	cyclops [ Sun Dec 01, 2013 6:29 pm ]
Post subject:	Re: jaseki
tchan001 wrote: Jaseki? Is that a term for a joseki originated by RJ? Yes, but at the end of the game!

Author:	Dusk Eagle [ Sun Dec 01, 2013 6:59 pm ]
Post subject:	Re: jaseki
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]`

Author:	ez4u [ Sun Dec 01, 2013 7:08 pm ]
Post subject:	Re: jaseki
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]`

Author:	Bill Spight [ Sun Dec 01, 2013 8:54 pm ]
Post subject:	Re: jaseki
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]`

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

Author:	asura [ Mon Dec 02, 2013 4:44 am ]
Post subject:	Re: jaseki
cyclops wrote: tchan001 wrote: Jaseki? Is that a term for a joseki originated by RJ? Yes, but at the end of the game! I'd vote for a misstype, but if done by intention it would be a very cool term!

Author:	cyclops [ Mon Dec 02, 2013 6:16 am ]
Post subject:	Re: jaseki
asura wrote: I'd vote for a misstype, but if done by intention it would be a very cool term! I never mosstype!

Author:	RobertJasiek [ Mon Dec 02, 2013 6:52 am ]
Post subject:	Re: jaseki
It was in round 5 of Berlin's Kranich tournament. http://www.dgob.de/tourn/tourn.cgi?f=13 ... t&mode=cml

Author:	cyclops [ Tue Dec 03, 2013 4:24 pm ]
Post subject:	Re: jaseki
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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