the weakness of this joseki

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cherryhill
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the weakness of this joseki

Post by cherryhill »

i have been told this joseki is weak unless you are using it to attack but that in other cases you shouldn;t use it because your corner can still be invaded at 3-3
Click Here To Show Diagram Code
[go]$$c This is a label for the diagram.
$$ ---------------------------------------
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$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . O . . . O X . . . . |
$$ | . . . , . . . . . , . . . O . X . . . |
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$$ | . . . . . . . . . . . . . . . X . . . |
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$$ ---------------------------------------[/go]
but let's say i do want to invade. i can't figure out how to do it when black defends this way. black to play
Click Here To Show Diagram Code
[go]$$c This is a label for the diagram.
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . O . . . O X . O . . |
$$ | . . . , . . . . . , . . . O . X X . . |
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$$ | . . . . . . . . . . . . . . . X . . . |
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$$ ---------------------------------------[/go]
i have played it a couple different ways but i cannot see how you can connect with the 3-3 stone? is it possible?
MJK
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Re: the weakness of this joseki

Post by MJK »

Well let me show you a newer variation of this joseki.
Click Here To Show Diagram Code
[go]$$c Black secures the corner in sente, while white having thickness.
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . 6 4 3 5 . . . . |
$$ | . . . . . . . . . O . 1 . O X . . . . |
$$ | . . . , . . . . . , . 2 . O . X . . . |
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$$ | . . . . . . . . . . . . . . . X . . . |
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$$ ---------------------------------------[/go]
Click Here To Show Diagram Code
[go]$$c Same as O17 Q14 K17 M17 M18 and black exchanging P17 O16, later b P18 is likely to be sente.
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . 2 . . . . . . . |
$$ | . . . . . . . . . O . 1 . O X . . . . |
$$ | . . . , . . . . . , . . . O . X . . . |
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$$ | . . . . . . . . . . . . . . . X . . . |
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$$ ---------------------------------------[/go]
Both variations are known even, but some territory-loving pros think better of black in the first diagram.
Wait, please.
MJK
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Re: the weakness of this joseki

Post by MJK »

Click Here To Show Diagram Code
[go]$$c enough for white
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . 4 . . |
$$ | . . . . . . . . . . . . . . O 2 3 . . |
$$ | . . . . . . . . . O . . . O X 1 C 5 . |
$$ | . . . , . . . . . , . . . O . X X . . |
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$$ | . . . . . . . . . . . . . . . X . . . |
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$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
Click Here To Show Diagram Code
[go]$$c White 'a' is later sente.
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . a . O . . . . |
$$ | . . . . . . . . . O . . . O X 1 O . . |
$$ | . . . , . . . . . , . . . O . X X . . |
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$$ | . . . . . . . . . . . . . . . X . . . |
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$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
Wait, please.
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RBerenguel
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Re: the weakness of this joseki

Post by RBerenguel »

cherryhill wrote:
Click Here To Show Diagram Code
[go]$$c This is a label for the diagram.
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . O . . . O X . O . . |
$$ | . . . , . . . . . , . . . O . X X . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
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$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
i have played it a couple different ways but i cannot see how you can connect with the 3-3 stone? is it possible?
It's black to play: what does black do to prevent the connection? I'm not sure if it is the best sequence at all but even if black can get this stone, his corner has vanished after the "failed" invasion (think about B Q17 as defense by black, although it is somewhat ugly, then play white)
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RBerenguel
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Re: the weakness of this joseki

Post by RBerenguel »

Don't spoil him/her the fun MJK :)
Geek of all trades, master of none: the motto for my blog mostlymaths.net
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