Largest capture that still can't live / Solution 3

[Diagram]
W4 at white+circle captures 17 stones...  
[Diagram]
...but can't make life  

W2 can't harm Black in the corner.

B3 at W4 would only be ko.

To force W6, the "snorkel" was needed.


[Diagram]
Variation  

The throw-in at W2 would make an interesting study too. This variation may contain blind spots that can be quite hard to read correctly.

[Diagram]
Variation  

Now, the second throw-in at W4 must be answered by connecting at B5. If B5 captures at a, then White b results in a ko which White captures first. Now, if W6 plays at b, then B7 captures at c; and if W6 plays at c, then B7 blocks at d.

[Diagram]
Variation  

If W4 ataris from the bottom, then it is sufficient to connect at B5.


Largest capture that still can't live / Solution 3 last edited by tapir on October 9, 2010 - 13:59
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