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 Post subject: Dieter's ABC of mistakes - 15
Post #1 Posted: Fri Apr 16, 2021 5:04 am 
Gosei
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Click Here To Show Diagram Code
[go]$$B Mistake 15
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . X O . . . . |
$$ | . . . . O . . . . . . X . X O . O O . |
$$ | . . O , . . . . . , . . O X O O . X . |
$$ | . . . . . . . . . . 1 . O . X O . X . |
$$ | . . . . . . . . . . . O X . X O X . . |
$$ | . . . . . . . . . X . . b . . X X . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . X . . |
$$ | . . . O . . . . . X . O . X . X O . . |
$$ | . . . . . . X . . . . . . . . c . . . |
$$ | . . . . O O X . . . . . . . . . . . . |
$$ | . . O O X O X O . . . . . . . . . . . |
$$ | . . X O X . O X X . . . . . . . . . . |
$$ | . . O X X O . . . . X . . . . . . . . |
$$ | . . O X . . . O . O . . X X X X X X . |
$$ | . . O X . . X O . . . O O X O O O O . |
$$ | . . a . . . . . . . . . . O . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


''a'' kill the [aji] in the corner; ''b'' forcing Black into [bad shape]; ''c'' [sabaki]

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 Post subject: Re: Dieter's ABC of mistakes - 15
Post #2 Posted: Fri Apr 16, 2021 2:58 pm 
Lives in sente
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'a' seems very big and sente. How should Black defend, by the way?

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 Post subject: Re: Dieter's ABC of mistakes - 15
Post #3 Posted: Fri Apr 16, 2021 3:50 pm 
Lives with ko

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i would play 'b' here. i don't think black can live even without white playing 'a' and 'c' doesn't look very promising

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 Post subject: Re: Dieter's ABC of mistakes - 15
Post #4 Posted: Sat Apr 17, 2021 11:59 pm 
Lives in sente
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I don't understand this problem. What is the aji in the corner? Supposing White plays elsewhere, what can Black do in the corner? I tried to live like this but didn't succeed. I must be missing variations.

Click Here To Show Diagram Code
[go]$$Bcm2
$$ | . . . . . . . . . . . . . . . . X . . |
$$ | . . . O . . . . . X . O . X . X O . . |
$$ | . . . . . . X . . . . . . . . . . . . |
$$ | . . . . O O X . . . . . . . . . . . . |
$$ | . . O O X O X O . . . . . . . . . . . |
$$ | . . X O X 2 O X X . . . . . . . . . . |
$$ | . . O X X O . . . . X . . . . . . . . |
$$ | . . O X . 3 1 O . O . . X X X X X X . |
$$ | . . O X . . X O . . . O O X O O O O . |
$$ | . . a . . . . . . . . . . O . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

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