Using the two point jump to sacrifice

   
[Diagram]

Reference diagram

Dieter: I will try to find an example from pro play or anyone who finds one, please substitute this crafted setting with such a pro example. For now, this will do: BC is under pressure.

[Diagram]

Defence

B1, a one point jump is the basic move for defense. However, in this position it may be too heavy. White exhanges W2 for B3 and stays ahead of Black's stones with W4 and W6, while these face white thickness below.

[Diagram]

Sacrifice

If we interchange B3-W4 in the previous diagram: White not only cuts off a stone, but more importantly B1 and B3 are harmed by W2 and W4.

[Diagram]

Sacrifice

Instead, B1 here will treat BC lightly and suffice with reducing the size of White's sphere of influence. It is more difficult to attack this structure on a large scale. If White cuts off with W2 and W4, the black stones are unharmed.


[Diagram]

Corner sequence

Here we say the two point jump at work again. For black, jumping as far as a is dangerous, so he refrains to B4. Cutting at b would give White all options for sacrificing W1 in good shape.

[Diagram]

Defence

Instead, if White defends with the basic move for defense, the one point jump, Black has an easy move with B4.


This is a copy of the living page "Using the two point jump to sacrifice" at Sensei's Library.
(OC) 2007 the Authors, published under the OpenContent License V1.0.
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