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Nice problem
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Author:  Gomoto [ Fri Aug 24, 2018 10:14 am ]
Post subject:  Nice problem
White to play

Attachment:
problemlevel.jpg
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Level 1 (easy)

What is whites best play?

hint:
(White has won this game already but lets suppose he wants to win with > 150 points)



Level 2 (difficult)

How does black defend?


Have fun!
Author:  EdLee [ Fri Aug 24, 2018 11:43 am ]
Post subject: 
Hi Gomoto,
Initial feeling is W drops at B12,
cap race, big eye v. small eye (with 0.5 ko).

For B to defend, do you mean after W drops B12,
or instead of B's current move A17 key point ?
Hmm, maybe the same spot, ladder at B12...
Author:  Gomoto [ Fri Aug 24, 2018 12:05 pm ]
Post subject:  Re: Nice problem
@EdLee
(Solution Easy Problem)
After white B12, is it possible to defend as black? :)
Author:  HermanHiddema [ Fri Aug 24, 2018 1:17 pm ]
Post subject:  Re: Nice problem
Black descends at B12 to create semedori. Black must immediately capture white's group in gote. So it gains a few points in sente for white, who can then go on to take the next biggest endgame at O1.
Author:  Bill Spight [ Sat Aug 25, 2018 10:14 am ]
Post subject:  Re: Nice problem
Best play depends upon the method of scoring. :)
Author:  Gomoto [ Sat Aug 25, 2018 11:28 am ]
Post subject:  Re: Nice problem
Thank you Bill for your very detailed solutions.
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