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Small Problem from Takao Shinji's Blog
http://www.lifein19x19.com/viewtopic.php?f=15&t=7861
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Author:  ez4u [ Tue Feb 12, 2013 5:42 am ]
Post subject:  Small Problem from Takao Shinji's Blog

On Saturday the preliminaries of the Professional Pair-GO Championship were played at the Nihon Kiin. After the second round the pro waiting room was quite crowded and the (unnamed) author set out the problem below for everyone's consideration. It looks easy, Takao wrote. But 5 minutes... 10 minutes...

So what do you think?

Click Here To Show Diagram Code
[go]$$Bc Black to Play
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . X X O X X . . . . . . . |
$$ | . . . . . . . X O . O X . . . . . . . |
$$ | . . . , X X X . O , O X . . . , . . . |
$$ | . . . X . O O . . O . . X . . . . . . |
$$ | . . . X . O . . . . . O X . . . . . . |
$$ | . . . . X O O . . O . O X . . . . . . |
$$ | . . . . X X X X X O . X X . . . . . . |
$$ | . . . . . . . . . X X . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Author:  gonut [ Wed Feb 13, 2013 9:00 pm ]
Post subject:  Re: Small Problem from Takao Shinji's Blog

Black seems to have 4 straightforward inside forcing moves to limit White to one eye. Maybe White can give up some stones to live small, but I don't see how.

B-J8, W-J7, B-H8, W-H7, B-H9, W-H10, B-J9. Next, Black has the obvious forcing move at K11.

Author:  ez4u [ Wed Feb 13, 2013 11:10 pm ]
Post subject:  Re: Small Problem from Takao Shinji's Blog

gonut wrote:
Black seems to have 4 straightforward inside forcing moves to limit White to one eye. Maybe White can give up some stones to live small, but I don't see how.

B-J8, W-J7, B-H8, W-H7, B-H9, W-H10, B-J9. Next, Black has the obvious forcing move at K11.

Perfect! :tmbup:
Click Here To Show Diagram Code
[go]$$Bc Black to Play
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . X . . . . . . . . . |
$$ | . . . . . . . X X O X X . . . . . . . |
$$ | . . . . . . . X O . O X . . . . . . . |
$$ | . . . , X X X 6 O , O X . . . , . . . |
$$ | . . . X . O O 5 7 O . . X . . . . . . |
$$ | . . . X . O . 3 1 . . O X . . . . . . |
$$ | . . . . X O O 4 2 O . O X . . . . . . |
$$ | . . . . X X X X X O . X X . . . . . . |
$$ | . . . . . . . . . X X . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

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