dfan wrote:
Extended discussion:
https://www.youtube.com/watch?v=8mJqE4KftwMIf I recall correctly,
- Q18 (as you played) is exactly what White wants.
- Black's best play may be to tenuki, since White doesn't have a great followup.
Wow! That was stunningly on-point. Thanks! Turns out that neither I nor my opponent had a clue how to play it...
Out of curiosity, I looked at this position from the video with Lizzie:
- Click Here To Show Diagram Code
[go]$$c
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . X , . . . . . , . . . . . O . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . d . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . b X . . . . . , . . . . . O . . . |
$$ | . a . . . B . . . . . . . c . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
Her preference is to play the standard joseki starting with B, where white takes a position on the left and black builds influence facing right. This also seems to have the effect of negating the pincer at D that was the motivation for A in the video. Compared to B, however, she only thinks that A is 0.3-0.4 percentage points worse. So, it certainly seems playable. In response to white A, her preference is to play C offering to trade the corner for a position on the bottom.