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Subject: Re: Do all Commercial programs analyze this Position like Deep Blue ?

Author: Vasik Rajlich

Date: 04:02:11 06/01/04

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On May 31, 2004 at 07:22:55, Uri Blass wrote:

>On May 31, 2004 at 07:15:31, Vasik Rajlich wrote:
>
>>On May 30, 2004 at 14:58:45, Jorge Pichard wrote:
>>
>>>
>>>Kasparov-Deep Blue
>>>Philadelphia (6) 1996
>>>
>>>
>>>The Opening has been a sucess for Kasparov. He has good central control, and
>>>prospects of a gradual queenside advance. More importantly, there is no direct
>>>plan for Black, so Deep Blue drifts for a few moves with disastrous
>>>consequences. The bishop is already a little clumpsy on d7; I suspect a strong
>>>human player would have sunk into thought, and devised a plan for deliverating
>>>his game.
>>>
>>>[D]r2q1rk1/pp1bbppp/2n1pn2/3p4/2PP4/1P1B1N2/PB1N1PPP/2RQ1RK1 b - - 0 1
>>>
>>>11...Nh5?
>>>This over-ambitious idea met with strong disapproval from most strong human
>>>commentators. However, Yasser Seirawan said "oddly enough, one well-known chess
>>>computer scientist suggested that the move may well be OK, but it might need a
>>>highly advandce program and computer in a few years' time to justify this move".
>>>I suspect that this is a case in point of someone believing that a strong
>>>chess-playing program is doing something profound, when in fact is just
>>>crunching numbers, Few GMs back in 1996 felt that 11....Nh5 was anything other
>>>than a bad move.
>>
>>This type of position is very difficult for any chess program.
>>
>>Sometimes, the engines will find some way to make a very strange move work, like
>>11. .. Nh5. Even in this case, it's not very good if a person is using an engine
>>to help him understand the position.
>>
>>Note that search depth is not important here. For another example of this, see
>>Kasparov-Fritz, X3D, game 3, where Fritz was doing 18-19 ply in the middlegame.
>
>I disagree that search depth is not important.
>
>The fact that 18-19 plies of Fritz was not enough does not mean that search
>depth is not important.
>
>Uri

Rrrrrr. :)

See how the scores for the top four or so moves here change with depth. (Or
trust me: not much.)

As is the case for all strategical positions.

Vas



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