Life In 19x19

Posted: **Tue Feb 07, 2012 10:47 am**

illluck wrote:The lower left is the joseki, the upper right is the bad shape (http://senseis.xmp.net/?EmptyTriangle) block. Note in both cases it's white to move next, so there's no difference due to an extra move.

Also, note that the lower left is better in terms of "influence" as well - the top right group is actually WEAKER due to bad shape in comparison.
$$B
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$$ | . . . X . . . . . X . . . . . X O . . |
$$ | . . . . . . . . . . . . . . . X O . . |
$$ | . . . . . . . . . . . . . . X X O . . |
$$ | . . . . . . . . . . . . . . . O . . . |
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$$ | . . . X . . . . . X . . . . . X . . . |
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$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . O X X . . . . . . . . . . . . . . |
$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . X X . X . . . X . . . . . X . . . |
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Click Here To Show Diagram Code
[go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . X . . . . . X O . . | $$ | . . . . . . . . . . . . . . . X O . . | $$ | . . . . . . . . . . . . . . X X O . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . X . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . O X X . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . X . . . X . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Okay, I was wondering what a standard White response to Black 1 would be for the Joseki. White protects his cutting point by forming a tiger's mouth, and then black makes the one-point jump--that makes sense. White keeps his stones connected, while gaining potential territory on the side, while Black protects the corner.

Posted: **Tue Feb 07, 2012 11:03 am**

Note that without the handicap stone, white might play at a. The tiger's mouth connection is solid, but a bit slow.

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . X . . . . . X O . . | $$ | . . . . . . . . . . . . . . . X O . . | $$ | . . . . . . . . . . . . . . X X O . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . a , . . . . . X . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . O X X . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . X . . . X . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Posted: **Tue Feb 07, 2012 12:37 pm**

Something else to consider,

There are lines where that Cut IS played (because black chooses to tenuki etc..)

But then black can choose to just let white have a couple of stones and take 4th line territory:

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

Posted: **Tue Feb 07, 2012 1:07 pm**

Bill Spight wrote:Better to get your feet wet than to say you cannot swim.

Bill, yes -- If you're afraid to get wet, jump into the lake! -- Standard Zen understanding. :mrgreen:

Life In 19x19

Confused about an opening sequence

Re: Confused about an opening sequence

Re: Confused about an opening sequence

Re: Confused about an opening sequence