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Endgame keima contact
    Keywords: EndGame, Shape, Tactics

[Diagram]
Keima contact

Assuming the circled points are Black territory. White slides in with the keima of W1. Black answers with a contact play at B2.


[Diagram]
Keima contact

White's drawing back at W3 leaves a big continuation at a. We can expect W3 to be sente and that Black will answer B4 at b, leaving more endgame for White at c

John F. Why assume Black b? a and c have plus points.

Bill's comment


[Diagram]
Keima contact

W3 is a mistake here. The hane at a doesn't work anymore because White has taken away one of her own liberties:


[Diagram]
Keima contact

Now White is short of liberties.


[Diagram]
Keima contact

Things are a little different if there is no black stone at a. White can play W5 at a to make nice shape but it has to be bigger than the hanes at b. The deeper in the endgame, the less likely that will be the case.



Please review this page. --Dieter


Bill's comment

[Diagram]
Keima contact

It is hard to say without seeing the surroundings, but W3 may well not be sente. Black's response looks roughly the same size. Also Bb looks inferior to either Ba or Bc, again depending on the context. That being the case, why not Ba instead of BC in the first place?

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This is a copy of the living page "Endgame keima contact" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.