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Subject: Re: Fischer solving tactical puzzle

Author: Dann Corbit

Date: 12:10:48 06/03/04

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On June 03, 2004 at 15:05:49, Andrei P wrote:

>On June 03, 2004 at 14:46:18, Dann Corbit wrote:
>
>>On June 03, 2004 at 14:36:25, Andrei P wrote:
>>
>>>on a related note, are there any tactical chess problems that were tested on
>>>GMs? I am curious how well the engines will solve them.  I keep hearing
>>>statements that the top engines are 3000 elo tactically, but have never seen any
>>>human calibration data.
>>
>>Pretty much every tactical suite was invented by GMs and then we use computers
>>to try to replicate the results obtained by the humans.  Most test suites have a
>>few small flaws in them.
>
>If the positions come from GM games, it does not mean that they are of
>GM-difficulty. For example, in a recent Leko-Kramnik game Leko essentially
>blundered and gave Kramnik the opportunity to apply tactics.
>http://chessbase.com/newsdetail.asp?newsid=1512
>
>Does it mean that the position after 32.Rd7?? is of 2700+ difficulty? of course
>- not, one needs to test the positions like that on a pool of GMs to determine
>its difficulty.

The test suites usually come from books.
WAC is from "Win At Chess", for instance.



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