3-4 point high approach, keima
This choice of is very steady. Usually Black isn't planning any complex variations here, but to keep sente and create a solid position on the left side.
For pro use of this joseki, see the keima joseki in fuseki.
After that Black at a is the standard play. The pincer at b is quite a new development in joseki (though played by Takagawa 50 years ago). Occasionally Black plays at c, but this leaves an obvious weakness and bad aji near a. Black tenuki at this point is rare. (An example appears in one of the games in The 1971 Honinbo Tournament book. A rare case in which knowing a pro play can be detrimental.)
For White tenuki now, see 3-4 point high approach, keima, tenuki.
After , the main line here, an extension to one of a, b and c is expected: which then ends the joseki. It seems that the tight extension at a has become more popular than c; the play at b will be made in connection with some overall consideration. White directly at d is also seen.
After White commonly plays into the corner with
, and
gives Black some sort of development on both sides.
Andre Engels: I cannot find any extension like in my game collection. Black either connects at a, or plays tenuki.
Charles Two examples I have (Gogod) are Takagawa games from 1954 (as old as me). A recent one was Yoda Norimoto-Kobayashi Koichi 2002-02-18 in the Kakusei final.
Nick Hoover: 3 is another reply for black that seals white into the corner and emphasizes the outside. 3 games on GoBase have this pattern.
If white resists being sealed in and plays 2 at 3, then black can play 3 at 2 and white is left with a group without a base.
There is also a fighting line, set off by . After some moves on the outside, Black goes back to a to live in the corner.
After this way,
is normal. Possibly White plays at a. After that an extension along the left side is very big for Black.
transposition: BQM 246
- This is how it went in my last game. The game continued with Ba, Wb, c, d, e, f. I ended up in reasonable shape and nothing died (stones
and
got captured). Feel free to put here a more enlightened example :) --Sigmundur
erislover: I am hardly an expert but this seems the natural move to me. After I do not see how black can get a good result.
,
in the above diagram, seems like a natural move but isn't. After
, white is out of options
erislover Thanks for your input. I read a ko from black's play, so white isn't out of options, but your "correct move" sequence is better than that. Thanks!
If black plays and then cuts with
, white stretches and black loses his stones. Black cannot captur white if she answers a with b. Note that after exchanging a for b, the geta at c does not succesfully contain the white group, as white can push trough at d.
If after black clamps with
, white connects. After this sequence (11 at
), white plays a and captures black
What if black responds to 3 with 4? I tried out a few sequences and black seems to get a good result. Is there a way for white to take advantage of black's joseki deviation?
PetriP? You could read the article by Alexandre Dinerchtein from
http://www.go4go.net/english/article/tricky/ . I think B is quite okay anyways not too bad, if You rememer/understand all the variations.
AndyPierce: I'm no expert but my guess is the usual thought would be for white to add a second stone to and sacrifice both in order to seal black into the corner and blight the
stone. White has some cutting points to deal with, but should be able to handle it (probably white fixes up at a next). Black's corner is only 10 points (if black eventually takes
) and black's play has been inconsistent with his
intent to develop on the left side.
Bill: For instance, if ,
defends against the ladder (
). Now if
,
is solid. Black's disadvantage is clear.