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Subject: Re: the new junior8 will probably not be the kasparov version!

Author: Amir Ban

Date: 15:11:59 02/19/03

Go up one level in this thread


On February 19, 2003 at 15:38:32, Bertil Eklund wrote:

>On February 19, 2003 at 09:13:04, Amir Ban wrote:
>
>>On February 18, 2003 at 01:36:07, Bertil Eklund wrote:
>>
>>>On February 17, 2003 at 13:54:21, Rajen Gupta wrote:
>>>
>>>>"Boris Alterman dismissed a version that won big against a well-known SSDF star
>>>>as being based on nothing more than cheap tactics, and recommended a version
>>>>based on a match that it actually lost".
>>>>
>>>
>>>This is of course absolute nonsense and probably a pure lie. Of course it is
>>>only a way to say that it is weaker then the other top-engines and we hope to
>>>sell it on the merits of the Kasparov match.
>>>
>>>Bertil
>>
>>What makes you say that ?
>>
>>Amir
>
>Everyone knows that today it is impossible to beat a top-program with "nothing
>more than cheap tactics". In example Nimzo, Gandalf and Ruffian are tactically
>at the same level or better than Shredder but Shredders better positional play
>makes it a clearly better program. Of course you could be right if you mean that
>the matches was two, four or six games.
>

That makes me a liar ?

Some of your top SSDF programs are not very good positionally, even relative to
other programs.

GM Alterman's assessment was based on 150 games against 3 opponents. One of the
results was 30-20. He said:

"it only beat *** because of sheer tactics" "It can play only one opening - the
Sicilian" "I'm not impressed by the results and do not like the games"

I dumped that version.


>I also believe you are wrong about your strange idea that Junior are
>positionally at the same level as Super-GMs. The interesting thing with Junior
>are that it plays sharp and many times strange moves that really can confuse
>humans.
>

What you call "sharp & strange moves" are positional decisions. They are not
based on search. Moves like a5 in game 4 against Kasparov and Bxh2+ in game 5
are based on evaluation. If you think getting pawns & pieces for free, or even a
careless pawn move, confuse Kasparov or any other GM you are wrong. They turn
gifts into wins with ease.

In some positions Junior's understanding of a position does not match a GM's,
but in others it understands better than most GM's. In the 3rd game in NY it
showed a better understanding when defending the position than the opponent, and
that's why it eventually won.


>I also don“t understand the choice of openings in the match. In the first game
>b6 are a known loser against that variation, 9 to 1 in my computer gamebase.
>Black is already a move after and plays a non-move like b6.
>Next time with black you try the same idea, including castling right into the
>attack. Knight takes g4 was probably the right decision after the risky castling
>.If not Junior had been better in tactics than the white side in this game it
>should have been another loss. If Junior had been black against a known
>SSDF-star in that game it had lost.
>

I believe you are wrong about this too, but here you will be able to check for
yourself soon.

Amir




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