I've sometimes see this move (black 3 )in pro game or in kgs, but i don't very understand his meaning and when to play it.

Click Here To Show Diagram Code

[go]$$
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . 1 . . . |
$$ | . . . . . . . . . . . . . . . . . 3 . |
$$ | . . . . . . . . . . . . . . . . 2 . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

It's a bit sloppy, but there's some information on Sensei's Library about it: keima block

I thought that I had addressed this move at some length, with an illustration from Go Seigen. It seems that I did, on GoDiscussions.com. Is any progress being made on the database?

_________________
Sheik Yerbuti -- if that really is your name --

I've got a copy, but still trying to figure out the schema

give me a clue what to search for, and I'll see if I can find anything.

Here is the URL from SL.

http://www.godiscussions.com/forum/show ... ight=shape

_________________
Sheik Yerbuti -- if that really is your name --

LOL

that's an awesome blank page!

ok, I'll see what I can find. We've got [what appears to be] the thread number (5728), and the string "shape", as well as your old userid (2111) which is also in the post insert statement

Does this look like the correct thread?
viewtopic.php?f=10&t=4678

Yes, that is familiar. It does not have anything about Go Seigen. I discussed that somewhere else.

_________________
Sheik Yerbuti -- if that really is your name --

maybe I can find that one later

sorry, I don't have anyway (yet) for you to do your own queries, but if you can find an existing thread on the old site (still running), then it'll be easier for me to extract it.