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BQM 30
Difficulty: Dan level
Keywords: Question, Joseki
BQM30: I (IGS 2k*) played a 5 stone handicap game against a local 5 dan, and he decided to play a rather nasty move in a corner sequence. I could of course have chosen a simpler variation myself, but his move 4 was a real curve ball (although anything outside Ishida is always hard for me). We briefly analyzed the corner after the (very short :) game, but couldn't really come up with anything good for black.
The game continued something like this:
I didn't want to play 5 for obvious reasons, but coundn't find better moves at that time.
Now I am thinking of something like black a to protect against the cut and the ladder, and perhaps at b to threathen to capture the marked stones. But the move order (and the right moves as well :) is not clear. It is clear that black 5 in the previous diagram was bad - I knew it when I played it, but couldn't really figure anything better either. Any ideas anyone? (or preferrably a clearcut solution :)
I analyzed the position a bit more myselft and and came into conclusion, that black must cut as in the (Ishida) joseki variations white defends the cuttin point.
After these moves it looks like black has to sacrifice the marked stones? Corner life and death is not my forte, so... (white plays 2 to reduce the number of liberties of the three black stones).
I fail to see how black could live with the marked stones, so perhaps the following is best black can do. At least he is very thick.
Funny how the mind works, now I see the interestin move of black 5, and who knows where that will lead...aaargh... I guess I'll never be more than a 2k*... Ah, this seems to be the best to black and bad for white, finally. I have come to this conclusion but unfortunately the full solution is too long to be included into the margin and it is already past 3am local time, so perhaps I'll just say that I came into the 2k* conclusion that white can not now play at b, and a gives black a magnificent result. Work out the variations by yourself, I am too tired. What is wrong with the simple solid connection?
After Black connects, W 2 goes after Black's stones, and now B 3.
This is a typical continuation. Black retains aji in the corner.
W 1 takes with good aji, but loses sente.
If W 1 - W 3 take 2 Black stones, B 4 is too good.
If W 3 threatens Black's stones, Black is happy to make a deal with B 4. This is a copy of the living page "BQM 30" at Sensei's Library. (C) the Authors, published under the OpenContent License V1.0. |