Hayashi Gembis Loose Ladder / Attempts

[Diagram]

Can white capture black's group with a?

Because the solution is very long, and Sensei's Library only allow ten moves per diagram, you can make an attempt by writing the color and coordinate of the last move, or by providing a finished diagram with only the last few moves.

[Diagram]

Failure Diagram 1

ThorAvaTahr: Very nice problem, let's try!

hmm i don't see the solution from here, it seems I lack one white stone for instance on a or b, however I could have made a mistake somewhere.

Herman: Sorry, a stone was indeed missing! Stone added at white+circle (the a you mention)

ThorAvaTahr: Still I don't see the solution. (black will make an eye and white cannot even approach, but even if white could approach, the temporary seki will lead to white's destruction. The problem for me is that the marked stones are too weak, a possible black atari at c gives black too many liberties. maybe I failed to connect them earlier in the ladder.

Herman: As far as I can tell, the problem is now correct, so you must've gone wrong somewhere ;-)

unkx80: I know I have no hope of reading it all out, so I played it out using a SGF editor. One move in ThorAvaTahr's attempt is wrong. =)

ThorAvaTahr: Yeah, hmm I allready doubted the part where I went wrong, but it seemed ok at the time. Solved it now


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(OC) 2009 the Authors, published under the OpenContent License V1.0.
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