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| How would yoou name this group? http://www.lifein19x19.com/viewtopic.php?f=15&t=2554 |
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| Author: | willemien [ Thu Dec 09, 2010 7:07 am ] |
| Post subject: | How would yoou name this group? |
While studying I stumbled on this group How would you call it? a Ten Thousand Year Ko without a Ko? Either player can start a [ko] (White at a, Black at b) but neither player would want to give their opponent the first ko capture. so it is some kind of [Ten Thousand Year Ko|TenThousandYearKo] Or is it as a Loss Making double ko threat? or just an incomplete seki (Black can play ''a'' to make it a seki. |
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| Author: | robinz [ Thu Dec 09, 2010 7:09 am ] |
| Post subject: | Re: How would yoou name this group? |
Doesn't a black play at a make a bent four in the corner (which is dead, unless white has unremoveable ko threats)? Thus I would say black to play can kill, and white to play must play at a to start the ko, even though black takes it first. |
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| Author: | HermanHiddema [ Thu Dec 09, 2010 7:16 am ] |
| Post subject: | Re: How would yoou name this group? |
robinz wrote: Doesn't a black play at a make a bent four in the corner (which is dead, unless white has unremoveable ko threats)? Thus I would say black to play can kill, and white to play must play at a to start the ko, even though black takes it first. Correct. |
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