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 PoisonedArrows3x

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PostSubject: PoisonedArrows3x   Mon Apr 29, 2013 2:50 pm



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0-100



from a very wise bookmaker / player

The ctg file is massive (4Gb). This is a ridiculous size for a ctg book.
Even reference type openings books that are meant to cover all possible
openings and not for engine play are never this big and don't need to
be.
I compared PA2 and PA3 to see why such a big increase.
PA 2 was made from 110,492 games whereas PA3 has been made from 678,960 games.
So basically the author (or someone else) has taken PA2 and added about
half a million games. As the book goes about 42 moves deep, this huge
number of added games would explain the massive file size.

I have had a look through and the hand tuning/move coloring/move weightings
of PA3 look very similar to PA2 so I don't think there has been much
extra tuning done here - mainly taken PA2 and added in a huge amount of
games which has changed the statistics slightly but not much.
Doing this actually does not add anything to the strength or
performance book because it has been tuned to play only a very limited
number of lines (as white it will only play 1.e4 and in response as
black is tuned to respond along B90 line). so as its only playing a
narrow range of lines then it doesn't matter if it has been made from
100 thousand or 100 million games - it will still play the same moves in
the same lines.


pass on it



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zedd1919
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PostSubject: Re: PoisonedArrows3x   Fri May 03, 2013 9:54 am

If books play only e4 then I don't think it is wise to make such a huge book.Even 2 MB book can block its line.
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PostSubject: Re: PoisonedArrows3x   Sat May 04, 2013 5:08 am

zedd1919 wrote:
If books play only e4 then I don't think it is wise to make such a huge book.Even 2 MB book can block its line.





Is good to see you back your return and post has inspired a reply , which i pass on

"This poison arrows book is simply to big to bother downloading plus we have seen its strength vs Ades 3 ctg which no doubt it was made to beat and being very many times BIGGER and no doubt being tested against manages to do, but only by a whisker "




Graph evolution of tournament:


Test conducted by Tretola


~

"we propose to test vs Ades 3 ctg this book we will use has not been tested vs Ades 3 only poison arrows x2 , we doubt you will agree but we believe the maker of the 2mb we will use is one of the best if not the best book makers there is , we shall see if this ( 2mb UN zipped )book can match or even beat Ades 3 ,we will NOT be using end game bases as they slow engines down and detract from the books performance and will test at 3+2 NOT 3+1 time control"


"please note this test is to see if books the size of poison arrows x3 , 4 GB unzipped are a waste of effort and is in no way meant to embarrass the author of Ades 3 should we match or beat his book , which we rate as the strongest free book available , we do not consider poison arrows x3 a book
more an encyclopedia and an insult to intelligence "

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