It is currently Mon May 12, 2025 9:17 am

View unanswered posts | View active topics View unread posts | View new posts | View your posts


Board index » Improve Your Game » Study Group

All times are UTC - 8 hours [ DST ]



Post new topic Reply to topic  Page 1 of 1
  [ 8 posts ] 
  Print view Previous topic | Next topic 
Author Message
Offline cyclops
 Post subject: Maeda El 190 ..
Post #1 Posted: Sat Feb 19, 2011 6:13 am 
Lives in sente
User avatar

Posts: 801
Location: Amsterdam (NL)
Liked others: 353
Was liked: 107
Rank: KGS 7 kyu forever
GD Posts: 460
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
maedaEl190.JPG [ 90.7 KiB | Viewed 5107 times ]
Attachment:
maeda_instructions.JPG
maeda_instructions.JPG [ 122.25 KiB | Viewed 5107 times ]


Attachments:
maeda_instructions.JPG
maeda_instructions.JPG [ 122.25 KiB | Viewed 5107 times ]
Top
 Profile  
 
Offline Sverre
 Post subject: Re: Maeda El 190 ..
Post #2 Posted: Sun Feb 20, 2011 3:54 am 
Lives with ko
User avatar

Posts: 193
Location: Trondheim, Norway
Liked others: 76
Was liked: 29
Rank: 2d EGF and KGS
GD Posts: 1005
Universal go server handle: sverre
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]


I have no idea how to solve problem 190, as far as I can tell Black is dead.

Click Here To Show Diagram Code
[go]$$ 191
$$-------+
$$..O3.1.|
$$.O.X..2|
$$.OOOXX.|
$$....OX.|
$$..O.OO.|
$$.......|[/go]


Click Here To Show Diagram Code
[go]$$ 192
$$......|
$$..XXX.|
$$.X.OX.|
$$.XO5O1|
$$.XO.O2|
$$.XO43.|
$$------+[/go]
Top
 Profile  
 
Offline unkx80
 Post subject: Re: Maeda El 190 ..
Post #3 Posted: Sun Feb 20, 2011 5:55 am 
Lives with ko

Posts: 257
Location: Singapore
Liked others: 13
Was liked: 30
Rank: Dan player
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.

_________________
My homepages: http://senseis.xmp.net/?Unkx80 and http://yeefan.sg/.
Top
 Profile  
 
Offline Bill Spight
 Post subject: Re: Maeda El 190 ..
Post #4 Posted: Sun Feb 20, 2011 10:38 am 
Honinbo

Posts: 10905
Liked others: 3651
Was liked: 3374
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. :)

_________________
The Adkins Principle:
At some point, doesn't thinking have to go on?
— Winona Adkins

Visualize whirled peas.

Everything with love. Stay safe.
Top
 Profile  
 
Offline cyclops
 Post subject: Re: Maeda El 190 ..
Post #5 Posted: Mon Feb 21, 2011 3:06 am 
Lives in sente
User avatar

Posts: 801
Location: Amsterdam (NL)
Liked others: 353
Was liked: 107
Rank: KGS 7 kyu forever
GD Posts: 460
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?
Top
 Profile  
 
Offline Sverre
 Post subject: Re: Maeda El 190 ..
Post #6 Posted: Mon Feb 21, 2011 3:31 am 
Lives with ko
User avatar

Posts: 193
Location: Trondheim, Norway
Liked others: 76
Was liked: 29
Rank: 2d EGF and KGS
GD Posts: 1005
Universal go server handle: sverre
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]
Top
 Profile  
 
Offline topazg
 Post subject: Re: Maeda El 190 ..
Post #7 Posted: Mon Feb 21, 2011 4:11 am 
Tengen
User avatar

Posts: 4511
Location: Chatteris, UK
Liked others: 1589
Was liked: 656
Rank: Nebulous
GD Posts: 918
KGS: topazg
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]$$ 190 :b7: @ :b3: - "a" stops White connecting after :b5:
$$|.......
$$|..O....
$$|.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]$$ 190 :b1: @ :w4:
$$|.......
$$|..O....
$$|.8OO.O.
$$|7XOXX..
$$|6XOX.O.
$$|5OXX...
$$|OCOXOO.
$$|4OOOX..
$$|2X.XX..
$$|3.X....
$$|.......[/go]


This is a direct ko if White plays :w4: @ :w8:, or in the sequence above where White connects, with :b9: capturing again at :b5:

Presumably White will fight the ko the first time though, and can play :w8: 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 :(
Top
 Profile  
 
Offline unkx80
 Post subject: Re: Maeda El 190 ..
Post #8 Posted: Mon Feb 21, 2011 4:59 am 
Lives with ko

Posts: 257
Location: Singapore
Liked others: 13
Was liked: 30
Rank: Dan player
@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).

_________________
My homepages: http://senseis.xmp.net/?Unkx80 and http://yeefan.sg/.
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 8 posts ] 

Board index » Improve Your Game » Study Group

All times are UTC - 8 hours [ DST ]

Who is online

Users browsing this forum: No registered users and 1 guest

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group