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Referenced by
DoublePurposePlays
35Point33Approach
44Point33Invasion...
34PointHighApproa...
BQM15
SixKyuNoseki
44PointLowApproac...
34PointHighApproach
Ladder

 

Double threat ladder-maker
  Difficulty: Advanced   Keywords: Tactics

[Diagram]
Setting up two ladders

When Black plays BC rather than connecting solidly, it gives White the option of W1 and W3 to set up two ladders (White at a and White at b). This is a typical crawling fight tactic.

Of course in this case Black may be content to exchange with Black c, White b now.



Another example comes up in the tenuki line of the tsukehiki joseki (see 3-4 point high approach, inside contact, tenuki variation).

[Diagram]
After White's tenuki

Here B1 after the BC/WC exchange depends on a ladder. More exactly White would now like to play hane at a.


[Diagram]
Dealing with the cut

After the cut B2, it seems that W5 is a double-threat ladder-maker, setting up White next at a or b. This is mentioned in Get Strong at Joseki volume 1.


[Diagram]
Resistance

What is not mentioned there is the chance of playing B1 as kikashi: after B3 White doesn't have an immediate way to capture the two BC stones. This was seen in a game Ma Xiaochun-Kong Jie 2002-24-22.



This is from BQM 15.

[Diagram]
Variation 1: the ladder

In this case Black is probably happy to exchange the BC stones for the WC (the reason being that Black earlier made a joseki mistake).



What is said on BQM 15 is this.

[Diagram]
White extends

Suppose W1 is played: then Black should have a good ladder with B2 - or else not begin this variation.


[Diagram]
Black pushes on

One should add a little more: B1 here must be answered by White, so that Black has an option of a parallel ladder also. Depending on the precise position in the lower right, this might be important.



Black might have a chance to push once more at a: reading required.

Charles Matthews



This is a copy of the living page "Double threat ladder-maker" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.