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Transcription error or blitz blunders?
http://lifein19x19.com/viewtopic.php?f=13&t=15921
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Author:  Uberdude [ Wed Jul 25, 2018 3:25 pm ]
Post subject:  Transcription error or blitz blunders?

I was looking at this old Lee Changho vs Cho Hunhyun game from 1995-01-04 (13th KBS Cup Final game 1) with Lizzie and was shocked to see it thought the players made a 50 and then 75% mistake. But on inspection maybe it's an error in the record? Here's the file from my few-years-old GoGoD:



Here's the dubious move 98 as 1. Playing yourself into shortage of liberties like this looks odd, but could it be a tesuji? Double atari seems one good answer, or just link up at g18. But apparently black played f15 in response, and then white pushed through at g18 instead of playing a ladder capture, black tenukid, and white fixed the cut on outside. So my guess is 98 was actually one space to the right at L18, which threatens m15 capture so black responded there (though LZ actually prefers to g15 cut to save the top stones and sacrifice the 2), and then white played g18 which is now sensible. Black's r11 still needs explanation as j15 cut seems to cause problems, perhaps there was a ladder in some variation that r11 altered, or perhaps a timesuji (KBS is fast) to get more time to read the j15 cut continuation and white chose to ignore and fix? (seems most likely to me). go4go has the same 98.

Click Here To Show Diagram Code
[go]$$Wcm1
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . 3 . X 1 . . . . . X . . . |
$$ | . . O . . X O X X X O . . O O X . . . |
$$ | . . . O . . O X O O X X . O X , . . . |
$$ | . . . . . X . O 5 . O 2 . . X . X . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . . . X O . |
$$ | . O O . O . . . . . . . . . . . 4 6 . |
$$ | . . X , . X X X . , . . . . . O . . . |
$$ | . . . X . O O X . . X X . . . O . . . |
$$ | . . . . . . . O . . . O . X . X O O . |
$$ | . . . . . . . . . . X . . . . . . . . |
$$ | . . X X . O . O O O O O . X . X X . . |
$$ | . O O . X X . X X X O . . . X O X . . |
$$ | . . . O . . . . . , X O O O O O O X . |
$$ | . . . . O . . . . X . X X O X O O X . |
$$ | . . . . . . . . . . . . . X X X O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]


Attachments:
1995-01-04b.sgf [1.33 KiB]
Downloaded 222 times

Author:  aeb [ Thu Jul 26, 2018 5:34 am ]
Post subject:  Re: Transcription error or blitz blunders?

Uberdude wrote:
I was looking at this old Lee Changho vs Cho Hunhyun game from 1995-01-04 (13th KBS Cup Final game 1) with Lizzie and was shocked to see it thought the players made a 50 and then 75% mistake. But on inspection maybe it's an error in the record?

So far I have only sorted and published Japanese (and some international) tournaments,
but among the unsorted games this one occurs with for move 98 either jb or kb,
that is, either K18 or L18.
More generally, my experience with sources like gobase and GoGoD is that there are
typos in perhaps 2% of the games; go4go is slightly more reliable.
It is impossible to have a mistake-free collection of tens of thousands of games.

Author:  macelee [ Thu Jul 26, 2018 6:05 am ]
Post subject:  Re: Transcription error or blitz blunders?

It looks sensible to move that stone from K18 to L18.

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