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Subject: Re: Shredder 7

Author: Sandro Necchi

Date: 08:22:53 12/09/02

Go up one level in this thread


On December 09, 2002 at 09:58:13, Uri Blass wrote:

>On December 09, 2002 at 09:27:49, Sandro Necchi wrote:
>
>>On December 09, 2002 at 09:08:54, Uri Blass wrote:
>>
>>>On December 09, 2002 at 08:17:37, Sandro Necchi wrote:
>>>
>>>>On December 09, 2002 at 07:27:51, Uri Blass wrote:
>>>>
>>>>>On December 09, 2002 at 06:44:55, Harald Faber wrote:
>>>>>
>>>>>>On December 09, 2002 at 05:15:08, Jouni Uski wrote:
>>>>>>
>>>>>>>To get REALLY improved top engine, I mean!
>>>>>>>
>>>>>>>According to SSDF Deep Fritz 7 is 14 points stronger than Fritz 7 (and probably
>>>>>>>Fritz 8 is very close)
>>>>>>
>>>>>>
>>>>>>IMO DF7 is more than 14pts stronger than F7.
>>>>>>
>>>>>>
>>>>>>>and Tiger 15 is 16 points over Tiger 14. Not so much.
>>>>>>
>>>>>>
>>>>>>Needs further testing.
>>>>>>
>>>>>>
>>>>>>>I quess, that Shredder 7 will have much more progress.
>>>>>>
>>>>>>
>>>>>>That is based on marketing placed by Sandro and Helmut. Simply a GUESS. Maybe
>>>>>>you should also try to GUESS how many former engines have also been announced to
>>>>>>be 50pts or more stronger than the predecessor and FAILED.
>>>>
>>>>
>>>>Pls. note: I DO NOT AND NEVER MADE MARKETING!
>>>>
>>>>>>Believe me, much more than one. Actually, as it seems, Tiger 15 falls into this
>>>>>>category. So calm down, wait and see whether Shredder 7 will really show an
>>>>>>improvement of 50pts.
>>>>
>>>>We have made a huge amount of games and based on those we can state that the
>>>>most reliable figure is 50 points.
>>>>
>>>>Pls. consider that the opening books have a huge no. of variations and depending
>>>>on them and the selection toward the opponents this can vary, THIS IS WHY I AM
>>>>TALKING ABOUT MOST RELIABLE GUESS!
>>>>
>>>>>>
>>>>>>
>>>>>>>Note, that Shredder 6 is 55 points over 5.32 and Paderborn version full 72 points. Do it Stefan!
>>>>>>
>>>>>>
>>>>>>Did you notice the difference between DeepFritz 7 K6-450 <-> A-1200 and Tiger 15
>>>>>>K6-450 <-> A-1200? What do you say now?
>>>>>
>>>>>I do not know and I guess that tiger was simply unlucky on A1200 and lucky on
>>>>>K6-450(there is a statistical error)
>>>>
>>>>Yes, but I was talking about 45 points improvement. Pls. note program
>>>>improvements so no link with a specific hardware. Also the program may was a
>>>>little lucky with slow hardware so more or less this is the improvement.
>>>>Why Uri does not admit I was right rather than criticizing every time he think
>>>>he has the opportunity?
>>>
>>>It is not something that I have against you.
>>>I simply know from history that the estimates for shredder were too optimistic.
>>
>>Well, it happens ones and you are repeting that all the time as a rule. Note
>>that when that happen I CLEARLY SAID THAT THIS WAS SOMETHING TOLD ME BY A TESTER
>>FRIEND OF MINE...
>>If who was selling Shredder did so, that has nothing to do with my claims. AM I
>>WRONG TO STATE THIS?
>>
>>Pls. say it once forever!
>>
>>>
>>>>
>>>>Again I repeat that I do not care about real Elo improvements as my interest is
>>>>to improve my opening book and win the WCCC!
>>>>
>>>>>
>>>>>
>>>>>Note that the predictions were also better at the time of shredder6
>>>>>
>>>>>Here is a link to the prediction
>>>>>
>>>>>http://ccc.it.ro/search/ccc.php?art_id=199339
>>>>
>>>>Pls. remember that I was talking about 50 points improvement based on UCI
>>>>version; the one with my book, which was not tested by SSDF on A1200.
>>>>
>>>>>
>>>>>The prediction were at least 80 elo better for shredder6.
>>>>>The prediction was also for sandro's book but I understand that shredder
>>>>>passerborn is using that book.
>>>>
>>>>Yes, it does, but using the book made for Shredder 6.0, not for this different
>>>>version, so not fully optimized!
>>>
>>>I understand your explanation but I expect better engine with the same book to
>>>perform better.
>>>
>>>If shredder padderborn is weaker than shredder6 with the same book when your
>>>book is used then it seems that in some meaning it is weaker than shredder6.
>>
>>This is what I claimed:
>>
>>Shredder 6 (UCI as referred with my book; Shredder 7 will have my book on both
>>GUI, but this will be the first time). better about 80 points in total:
>>
>>40-50 points the engine and about 15-20 points the book and the rest the new
>>learning (again UCI GUI).
>>
>>Shredder Paderborn: about 15-20 points stronger (the engine).
>>
>>So now since the book was made for the 6.0 which it is REASONABLE that
>>Padderborn version was not optimized for the book as usually it is the other way
>>around!
>>
>>So my statements are turned out to be REALISTIC considering what above WHICH IS
>>OBVIOUS TO ME and should be to all if you think about it!
>>
>>Did I ever critized another program? No I did not.
>>Did I ever talked about other programs? No I did not.
>>Why do I give info on Shredder? Because being in the developing team I think it
>>is an enrichement for this forum to know things from the people that work on
>>them. When I was a customer I wanted this, but very seldom they were available.
>>Why other people, which work on top programs, do not appear on this forum?
>>Because there are too many people TOO READY TO CRITICIZE and made general
>>statement instead of trying to understand things.
>>
>>I hope I have been MORE than clear.
>
>I understand
>
>It seems based on the claim that your book was good for shredder6 and not good
>for shredder padderborn that these programs are completely different and there
>is a significant change that is productive in part of the cases and counter
>productive in another part of the cases(otherwise a book that is good for
>shredder6 should be also good for shredderpadderborn).

Yes, just one example:

If you are an aggressive player it is not worth to force you to play a Carokann
defence line where you have to play more than 15 defence moves. You'll be
"somehow force" by your aggressive style to force an attacking move and get a
bad position. The same is true for chess programs.

One small example:

My Shredder 6.0 book gives 1. d4 as best move with white.

For Shredder Paderborn it should be 1. e4

So what I mean is that Shredder Paderborn is a little stronger than 6.0 (I think
around 15-20 points), but because the book is not suiting it's style it may gets
15-25 points penalty from the book resulting a litte less stronger in the SSDF
list or about the same.

If this is true we may have missed the first place in the list when Deep Fritz 7
was not available yet.

So my complains with SSDF people to test the UCI version where not too wrong at
the end.

Sandro
>
>Uri



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