34 Point ,High Approach, One Space Low Pincer, 33-Attachment, Outside Hane, Large Scale Fight

  Difficulty: Advanced   Keywords: Joseki, Ko

Continued from 34 Point, High Approach, One Space Low Pincer, 33-Attachment

Table of contents Table of diagrams
Outside hane
Inside cut
Large scale fight
Large scale fight - ctd
Outside cut
Settlement

[Diagram]
Outside hane  

At this point, White can keep things simple with a, or make it complex by any of the cuts b or c. We discuss b here.

[Diagram]
Inside cut  

W1 applies the proverb cut the side you don't want. B2 applies the underlying proverb capture the cutting stone. Even after the acquired ponnuki, Black is not yet alive. On the other hand, White's ladder at W5 is not at all free of aji either. B6 goes on to exploit the aji and cut. Up until W9 it is a one way street, then B10 cuts on a large scale, in sente due to the ladder aji which forces White to connect at a, and a race to capture occurs.

B10 can also cut on an even larger scale, at a.

B2 can settle for peaceful development, against the proverb to capture the cutting stone.


Continuation

[Diagram]
Large scale fight  

W10 is tesuji

[Diagram]
Large scale fight - ctd  

White is the first to take the ko. The value of this ko is a good 25 points, so in the early stages of the game, when this corner variation is likely to occur, moves with higher value should abound as good ko threats.


Larger scale - not good for Black

[Diagram]
Outside cut  

B1 cuts on an even larger scale. After W4, B5 must find a solution in the ko, for he cannot live locally. W10 is an inventive ko-threat. Next, Black will live, and White captures two stones, acquiring good thickness (diagram to be added)


Peaceful variation

[Diagram]
Settlement  

This is slightly submissive by Black, not capturing the cutting stone, but depending on the overall situation and the playability of the ko in the primary variation, this may be the best move. Incidentally, W3 leaves an endgame for Black at a, but W3 at b would leave the thick move of c in sente for Black.


34 Point ,High Approach, One Space Low Pincer, 33-Attachment, Outside Hane, Large Scale Fight last edited by 194.78.35.195 on July 14, 2009 - 10:44
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