Sunday, October 09, 2011

Butterfly Followup

Thanks Badge, for your input. I had forgotten about the butterfly name. I do remember it is considered bad shape because of the sansan invasion. But when I invaded... It didn't end so well for me.


This was your proposal, which is basically correct apart from missing an atari on the way. Of course is easier to see on the board than when you type a sequence.


This is how I have learned the invasion (but without the extra okeima stone at N17. As you can see, black's hane at 13 looks weird and superfluous now. Just showing it here for completeness.


One day I was playing a black who agreed and instead of the O17 protection decided to atari me at A. For a few moments I was overconfident as always, because I knew that the punishment for that is to cut at P17. No problem, ha, I would kill him so badly!


Isn't it great how we can be totally overconfident in our games, even when it is not quite warranted. Soon after he played A, and I cut at P17, I found out that the stone at B was very significant indeed. And instead of the cut being a punishment for him, it actually got me into deeper trouble.

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1 comment:

David - Go Game Guru said...

Hi K,

I guess you'll remember this one from now on then ;).

As you and badge have said, white still can live, as shown at length here:

However, I've found in practise that it's often better to fight the ko as white. This is because it's a heavy ko for black and often you can force black to back down and let you live more comfortably.

Anyway, who wants to grovel for a small life when you can die gloriously in ko...

Good to see you blogging more again. I don't want to become the one leaving hints since you're one of the people who got me back into this blogging thing. :)