Hovercraft

  Difficulty: Intermediate   Keywords: EndGame, Life & Death, Go term

See also Joseki-related life-and-death example 2.

[Diagram]
Hovercraft  

This is another shape often resulting from a 3-3 invasion.

Let's try a few attacks for White.

Hane

[Diagram]
First hane  

Black has to let go two stones, or ...

[Diagram]
Problem  

He will die after 2.

[Diagram]
Life  

Black lives, but White can make an endgame gain at a.

[Diagram]
L+2 Group  

Making the L+2 group saves all 6 stones but this time, the other white descent (on top) is sente, as this will threaten a ko.


[Diagram]
"Hovercraft" with descent  

If white has the marked stone, for example because black threatened to connect an outside group here, the corner can now be killed.

Sandra: If itís black turn, can it be saved?

MrTenuki: Yes-- one option would be connecting at a. The point here is simply that the marked White stone changes the status of the Black group from alive to unsettled.

Sandra: Thank you!

[Diagram]
My hovercraft is full of eels.  

Bent four in the corner.

[Diagram]
In a recent game of mine.  

What about this? How should you respond to move 4 here to kill?

Just connect with 5. If white 6, just atari 7 kill. If white play something else instead of 6, it's already dead or dead in bent 4 .


Hovercraft last edited by 83.156.122.211 on April 12, 2016 - 20:13
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