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| A tricky shape http://www.lifein19x19.com/viewtopic.php?f=15&t=11653 |
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| Author: | peti29 [ Sat Mar 28, 2015 2:10 pm ] |
| Post subject: | A tricky shape |
This has just came up in one of my games. In the end it remained unresolved before the game ended in resignation. However upon reviewing my game I found this to be rather tricky. Hard to avoid the KO. Does this have a name? I'm asking about the marked formation. I just made up the rest. (Also, this is my first diagram ever - if I remember right.) |
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| Author: | Sennahoj [ Sat Mar 28, 2015 3:23 pm ] |
| Post subject: | Re: A tricky shape |
If white plays first, I think they can win: In this variation white lives with double ko: If black plays first, I think a direct ko white takes first is the best result: |
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| Author: | Bonobo [ Sat Mar 28, 2015 3:54 pm ] |
| Post subject: | Re: A tricky shape |
If it’s White’s turn, wouldn’t then S5 do it? |
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| Author: | illluck [ Mon Mar 30, 2015 3:42 am ] |
| Post subject: | Re: A tricky shape |
I think after 1 below "a" and "b" are miai. Edit: If black plays first it looks trickier - I think the below throw-in ko might be strongest? Actually, seems like the below is also a throw-in ko, so it's pretty much the same? |
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| Author: | pwaldron [ Mon Mar 30, 2015 10:45 am ] |
| Post subject: | Re: A tricky shape |
Doesn't this kill the ko option? One eye beats no eye. |
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| Author: | illluck [ Mon Mar 30, 2015 3:13 pm ] |
| Post subject: | Re: A tricky shape |
pwaldron wrote: Yeah - the same reason why the first line hane works too. Is this one cleaner in terms of threats or is the first line hane cleaner? |
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