Page 1 of 1

2-2 invasion behind sansan

Posted: Fri May 18, 2018 3:05 am
by Phobos
Click Here To Show Diagram Code
[go]$$B
$$ -----------------------------
$$ - . . . . . . .
$$ - . 2 . . . . .
$$ - . 3 1 . . . .
$$ - . 4 . . . . .
$$ - . . . . . . .
$$ - . . . . . . .
$$ - . . . . . . .
$$ - . . . . . . .[/go]


I don't find this sequence in Kogo's Joseki Dictionary.
White in corner is dead but what is the best response for black to :w4: ? And why?
Thank you.
Have a nice day.

Re: 2-2 invasion behind sansan

Posted: Fri May 18, 2018 4:13 am
by Gomoto
3 is a big mistake, ELF suggests:

Posted: Fri May 18, 2018 6:01 am
by EdLee
Hi Phobos,

Nice to try Leela's options for :b3: ,
but the game is not decided here.
Example:
Click Here To Show Diagram Code
[go]$$B
$$ ---------------
$$ | . . . . . . .
$$ | . 2 . . . . .
$$ | . 3 1 . . . .
$$ | . 4 5 . . . .
$$ | . 6 7 . . . .
$$ | . . . . . . .
$$ | . . . . . . .[/go]
Depends on the whole board situation.

Re: 2-2 invasion behind sansan

Posted: Fri May 18, 2018 11:47 pm
by Uberdude
Psychologically, I want to tenuki the 2-2 just to show my opponent how silly I think he is being (as a general principle when your opponent plays a weird move tenuki is rarely worse than the wrong answer). If white follows up by continuing with the 2-2 it looks bad for him, probably one space approach trying to get passive block is better. Answering more efficiently like Gomoto showed should also suitably embarrass white.