Attack that group!

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unkx80
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Re: Attack that group!

Post by unkx80 »

Kirby wrote:Another member on this forum, daniel_the_smith, was kind enough to give me some comments on a game I played for the L19 tournament (http://lifein19x19.com/forum/viewtopic.php?f=9&p=26104).

One thing that I was curious about was the best way to attack the black group on the left, locally, from the following board position:

Click Here To Show Diagram Code
[go]$$B Attack marked stones!
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . . O O X O X . O . . O O X . . . . |
$$ | . . . O X O X . . , . . . X . X . . . |
$$ | . . . . X O X . X . O . . . . . . . . |
$$ | . . O . . O O . . X . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . a . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . B , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . B . . . . . . . . . . . . O . . . |
$$ | . O B . . . . . . . . . . . X O O . . |
$$ | . O . . . . . . . . . . . . . O X . . |
$$ | . . . O . . . . . X . . . . . , X . . |
$$ | . . . . O . X . . . . . . X . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


I know that it might not be the best timing to attack the group, but locally, what is the best way to attack it?

What bugs me is the intersection at "a". I wish I had a white stone there. I could play there, but black can easily jump out, and "a" then just looks over-concentrated to me.

Questions:

A.) Considering the local situation, what's the best way to attack the group on the left?

B.) Attacking the left immediately might not be a good overall global strategy. What is a good overall strategy? One way that Daniel brought up was to play H16 to keep the top group weak. Any other ideas?


Locally there is a strong attack on the marked black stones is not possible. Therefore, in my opinion, the standard a is the best. This move takes territory as profit and reduces black's base at the same time, giving it pressure. It also reduces the amount of aji of those two captured black stones. I don't know of a better move on the left side.
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