Double Go / Discussion

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[Diagram]

Better defence?

Herman: Correct me if I'm wrong, but isn't this a better defence for white? Now black's invasion has become pointless, and white gets 7 points, winning by 2. (Black must play at least one of the a marked points to prevent another point for white there)

You're right! Even more reason for B not to play this line. SiouxDenim


[Diagram]

Example – part 2

W cannot defend both attacks, so uses half a move to defend the cut and half a move to make an attack on the bottom B stones.

Herman: Shouldn't white's second half move be at a? That way, white can live and will not lose any stones...

[Diagram]

Example – part 2

W only has two eyes.

[Diagram]

Better

Herman: Whoops, missed that :)
So how about this then? White will either make three eyes on the left, or get both moves a and get an eye there...


It's not easy this problem making malarky! I added the 3 White stones on the right to provide some threats, they weren't supposed to be an option for an eye :( I can't find an easy fix for the problem either. SiouxDenim

[Diagram]

Boring example

This is about the simplest problem I can think of. B to kill some W stones.

Matti: Black cannot kill.


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