Life In 19x19 :: Maeda El 190 ..

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Maeda El 190 .. http://www.lifein19x19.com/viewtopic.php?f=15&t=3251	Page 1 of 1

Author:

cyclops [ Sat Feb 19, 2011 6:13 am ]

Post subject:

Maeda El 190 ..

Because nobody liked the previous ones here some others.
It is hidden because the left side shows the solutions of the previous problems.
As a sidetrack we can teach ourselves japanese by deciphering all the characters, like from Rosetta's stone.

Attachments:

maeda_instructions.JPG [ 122.25 KiB | Viewed 5099 times ]

Author: Sverre [ Sun Feb 20, 2011 3:54 am ]

Post subject: Re: Maeda El 190 ..

Click Here To Show Diagram Code: [go]$$ 190 $$|....... $$|..O.... $$|...O.O. $$|..OXX.. $$|..OX.O. $$|.OXX... $$|..OXOO. $$|..OOX.. $$|.X.XX.. $$|..X.... $$|.......[/go]

Click Here To Show Diagram Code: [go]$$ 191 $$-------+ $$..O....| $$.O.X...| $$.OOOXX.| $$....OX.| $$..O.OO.| $$.......|[/go]

Click Here To Show Diagram Code: [go]$$ 192 $$......| $$..XXX.| $$.X.OX.| $$.XO.O.| $$.XO.O.| $$.XO...| $$------+[/go]

Author:	unkx80 [ Sun Feb 20, 2011 5:55 am ]
Post subject:	Re: Maeda El 190 ..
Among these three problems, I found 190 the hardest because I initially focused in the wrong area. Hints for 190: There is no way out on the right side. The solution is a ko.

Author:	Bill Spight [ Sun Feb 20, 2011 10:38 am ]
Post subject:	Re: Maeda El 190 ..
cyclops wrote: Because nobody liked the previous ones here some others. It is hidden because the left side shows the solutions of the previous problems. As a sidetrack we can teach ourselves japanese by deciphering all the characters, like from Rosetta's stone. Attachment: maedaEl190.JPG Attachment: maeda_instructions.JPG BTW, that should be around 10 kyu, not less than 10 kyu.

Author:	cyclops [ Mon Feb 21, 2011 3:06 am ]
Post subject:	Re: Maeda El 190 ..
Last call for problem 190. Come on, you guys. It is only 5 to 6 kyu. One long one way street. ( 11 moves ) Besides, it is very instructive. Never encountered such shape in your games before?

Author:	Sverre [ Mon Feb 21, 2011 3:31 am ]
Post subject:	Re: Maeda El 190 ..
cyclops wrote: Last call for problem 190. Come on, you guys. It is only 5 to 6 kyu. One long one way street. ( 11 moves ) Besides, it is very instructive. Never encountered such shape in your games before? Second try. I was spoiled by unkx's hint though. Click Here To Show Diagram Code `[go]$$ 190 $$\|....... $$\|..O.... $$\|..6O.O. $$\|.5OXX.. $$\|.3OX.O. $$\|.OXX... $$\|41OXOO. $$\|72OOX.. $$\|8X.XX.. $$\|..X.... $$\|.......[/go]` Click Here To Show Diagram Code `[go]$$ $$\|....... $$\|..O.... $$\|.2OO.O. $$\|.XOXX.. $$\|.XOX.O. $$\|.OXX... $$\|O.OXOO. $$\|3OOOX.. $$\|OX.XX.. $$\|1.X.... $$\|.......[/go]`

Author:	topazg [ Mon Feb 21, 2011 4:11 am ]
Post subject:	Re: Maeda El 190 ..
Here's my try for 190: Click Here To Show Diagram Code `[go]$$ 190 - Starting setup $$\|....... $$\|..O.... $$\|..6O.O. $$\|.5OXX.. $$\|.3OX.O. $$\|.OXX... $$\|41OXOO. $$\|.2OOX.. $$\|.X.XX.. $$\|..X.... $$\|.......[/go]` Click Here To Show Diagram Code `[go]$$ 190 @ - "a" stops White connecting after $$\|....... $$\|..O.... $$\|.6OO.O. $$\|5XOXX.. $$\|4XOX.O. $$\|3OXX... $$\|OCOXOO. $$\|2OOOX.. $$\|1X.XX.. $$\|..X.... $$\|.......[/go]` This is a two step ko, with Black taking first? EDIT: Maybe the other side? Click Here To Show Diagram Code `[go]$$ 190 @ $$\|....... $$\|..O.... $$\|.8OO.O. $$\|7XOXX.. $$\|6XOX.O. $$\|5OXX... $$\|OCOXOO. $$\|4OOOX.. $$\|2X.XX.. $$\|3.X.... $$\|.......[/go]` This is a direct ko if White plays @ , or in the sequence above where White connects, with capturing again at Presumably White will fight the ko the first time though, and can play as a ko threat (because it's still a direct ko anyway)? FURTHER EDIT: Actually, isn't this a two step ko again? Go is hard

Author:	unkx80 [ Mon Feb 21, 2011 4:59 am ]
Post subject:	Re: Maeda El 190 ..
@Topagz: L&D wise, I see no difference between your two diagrams. I regard both as solutions (although I won't play the second diagram myself because the throw-in is unnecessary). I think both are two step ko (http://senseis.xmp.net/?TwoStepKo).

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