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 Post subject: AGA problem of the week
Post #1 Posted: Thu Nov 16, 2017 12:17 pm 
Lives in sente

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Universal go server handle: speedchase
I have a question about the current problem of the week. This is the problem.

This is the problem:

Click Here To Show Diagram Code
[go]$$c Problem
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . , . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . X X X . . X . |
$$ | . . . . . . . . . X X X O O X X X . . |
$$ | . . . . . . . . . X . O . . . O O X . |
$$ | . . . . . . . . . X O . O O . O . X . |
$$ | . . . . . . . . . X . . . . . . X . . |
$$ ---------------------------------------[/go]


My Question:

This is the given solution

Click Here To Show Diagram Code
[go]$$c Given Solution
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . , . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . X X X . . X . |
$$ | . . . . . . . . . X X X O O X X X . . |
$$ | . . . . . . . . . X . O 2 1 4 O O X . |
$$ | . . . . . . . . . X O . O O . O . X . |
$$ | . . . . . . . . . X . . . 3 6 5 X . . |
$$ ---------------------------------------[/go]


What happens if white plays this instead? I don't see any way to prevent white from living unconditionally.

Click Here To Show Diagram Code
[go]$$c Variation
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . , . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . X X X . . X . |
$$ | . . . . . . . . . X X X O O X X X . . |
$$ | . . . . . . . . . X . O 2 1 . O O X . |
$$ | . . . . . . . . . X O . O O 4 O . X . |
$$ | . . . . . . . . . X . . . 3 . . X . . |
$$ ---------------------------------------[/go]

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 Post subject: Re: AGA problem of the week
Post #2 Posted: Thu Nov 16, 2017 12:57 pm 
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I think it's still ko after your W4 if B-L1, W-M1, B-N1, W-P1, B-N1.


This post by moha was liked by: speedchase
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