3454 Enclosure/ Technique 3

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jantiff: Without support, it's not easy for White to live there...

[Diagram]

Black resists

B4 denies White the classical ko.

[Diagram]

Continuation

B3 is a nice placement. White dies.

Hence, White should not use this technique as a raw invasion.

Bill: It may have value as a probe.

[Diagram]

Black goes for the kill

W1 makes a ko shape, but B2 plays to kill.

After W9, the ladder (a) and the semeai (b) are miai.

[Diagram]

No ladder

If the ladder does not work, B1 takes the corner.

But first White plays shibori on the right.

[Diagram]

White seals the corner

Then White seals the corner with W2 - W4.

This is generally good for White. Black has lost at least one move. See tewari.

Source of variations: Enclosure Joseki by Okubo Ichigen.


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