Life In 19x19
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semeai missed
https://lifein19x19.com/viewtopic.php?f=15&t=16186
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Author:  xoxox [ Thu Nov 01, 2018 6:44 am ]
Post subject:  semeai missed

I have heard an interesting story about following game. Black tenuki in a winning position and white won semeai instead. Move 93-94.

It was a game between two strongest players of their time and yet both of them missed it. Later 4-dan scorer pointed it out to both of them.

Game Info:

Url: http://ps.waltheri.net/database/game/38306/

Black: Fujisawa Kuranosuke (9p)
White: Go Seigen (9p)
Date: 1951-10-20
Event: Ten-game match sponsored by Yomiuri Shinbun
Komi: 0
Result: W+R

Can someone point out better move 93 that is winning for black? I can't find it.

Attachment:
Fujisawa Kuranosuke - Go Seigen (1).sgf [825 Bytes]
Downloaded 16 times

Author:  HermanHiddema [ Thu Nov 01, 2018 7:59 am ]
Post subject:  Re: semeai missed

See forum/viewtopic.php?f=15&t=3798

Author:  xoxox [ Thu Nov 01, 2018 11:10 am ]
Post subject:  Re: semeai missed

HermanHiddema wrote:


It is different from the game position, how to make move 16 from solution is unclear to me. I am DDK and on a mobile device so if someone can provide a solution in SGF it would be very helpful to me.

Thanks in advance.

Author:  Bill Spight [ Thu Nov 01, 2018 12:37 pm ]
Post subject:  Re: semeai missed

As requested. Go to :b91:.


Author:  xoxox [ Thu Nov 01, 2018 1:00 pm ]
Post subject:  Re: semeai missed

Thank you, it was very nice. Viewed it on gridmaster and it was clear and eye-friendly. Still bit of an exercise for me after move 105 but it was not very difficult.

Is this kind of thing happen often in top level play or this was an exception case?

Should, as a 15 kyu, I study Pro games? This was kind of life-death problem too.

Also I can't find other games from this jubango in SGF format, are they freely available online?

Author:  Bill Spight [ Thu Nov 01, 2018 1:10 pm ]
Post subject:  Re: semeai missed

xoxox wrote:
Thank you, it was very nice. Viewed it on gridmaster and it was clear and eye-friendly. Still bit of an exercise for me after move 105 but it was not very difficult.

Is this kind of thing happen often in top level play or this was an exception case?


A very rare double oversight.

Quote:
Should, as a 15 kyu, I study Pro games? This was kind of life-death problem too.


Why not? Pro games have everything. Even without comments you can pick up a lot. :)

Quote:
Also I can't find other games from this jubango in SGF format, are they freely available online?


A good resource, reasonably priced. :) https://gogodonline.co.uk

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