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Subject: Re: Results of John Merlino's Chessmaster survey?

Author: Marc van Hal

Date: 02:16:33 11/30/01

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On November 29, 2001 at 19:30:01, John Merlino wrote:

>On November 29, 2001 at 17:01:07, Mike S. wrote:
>
>>On November 29, 2001 at 16:38:41, John Merlino wrote:
>>
>>>On November 29, 2001 at 13:55:40, Roy Eassa wrote:
>>>>Sorry if I missed them, John, but do you have any results or statistics on the
>>>>results of the Chessmaster survey you posted awhile back?
>>>
>>>I didn't get very much useful data because only 24 people responded, and most of
>>>the answers were either almost unanimous (and unsurprising) or completely
>>>random. (...)
>>>
>>>That's really about it. Not much of use, except as, perhaps, an amusement.
>>
>>What about the "tasc database as an opening book" issue, in other words, to have
>>Chessmaster use the "database findings" like an opening book?
>>
>>I've seen then and when CM being out of it's book and at the same time the
>>database findings still provided useful move statistics from many master games.
>>CM could use these like an opening book (maybe as an additional option, or
>>adjustable). IIRC, that was how the tasc base program used to do it btw when
>>playing a game.
>>
>>Now, these infos are displayed for the user, but CM itself doesn't utilize it
>>for it's own play.
>>
>>I think this could really be an improvement, and shouldn't be too difficult to
>>implement (as you have the database findings feature already). Furthermore, the
>>benefit could even be bigger when the game collection is enlarged and updated
>>either by you, or even by the users themselves. Or they could use special
>>databases for that purpose, i.e. computer chess games when The King plays
>>against another engine.
>>
>>Regards,
>>M.Scheidl
>
>This has been done, in a roundabout way.... The new opening book (thanks to a
>much larger format) has been created using CM8000's database (specifically, all
>games where both players were at least 2400). All moves up to 40 plies from
>these games were stored, and then any move that was made only once was removed.
>The resulting book has over 280,000 moves (more than seven times the size of the
>previous book).
>
>So far, testing has shown that this book is no worse than the CM8000 book. ;-)
>
>jm

Games of 2400 versus 2400 can be prety bad though
Then again if you know grap 1 game from the SSDF list you already can win from
Chessmaster when it plays 1.d4
A game against Tiger

Regards Marc van Hal



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