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Subject: Re: Why comps are no GM (Anti + Statistics)

Author: Chris Carson

Date: 10:20:56 02/05/03

Go up one level in this thread


On February 05, 2003 at 12:02:31, Rolf Tueschen wrote:

>On February 04, 2003 at 19:13:22, Andreas Guettinger wrote:
>
>>On February 04, 2003 at 16:49:01, Rolf Tueschen wrote:
>>
>>>On February 04, 2003 at 15:54:32, Andreas Guettinger wrote:
>>>
>>>>It can. With tactics, even weaker comps can beat GMs. See Kramnik and Kasparov.
>>>>Be careful, I studied many hours statistics at university. But you're right, it
>>>>is statistics.
>>>>
>>>>Your anti-comp strategy system IS a myth. I laugh always when I see this
>>>>argument. If one traines anti-computer, then he manages to get the computer to
>>>>look really silly in ONE game, but the 50 games he lost until he got this game
>>>>he never shows. Your anti-computer strategy is unsuitable for tournament play!!
>>>>
>>>>
>>>>But maybe you manage to win a 24 game tournament against a top program with your
>>>>anti-computer strategy? Show us! :)
>>>>
>>>>regards
>>>>Andreas
>>>
>>>Please say just a few words about the phenomenon that weak players could beat
>>>2700 comps. Would you believe if I claimed the same for a match against human
>>>GM? I think that is the reason why we should discuss the whole question a bit
>>>deeper.
>>
>>I would not believe you, if you claimed that. :)
>>
>>It is not my intension to deny that there are positions that computers just are
>>not good in. Their knowledge is just not sufficient (maybe about kingsafety or
>>whatever) and they make mistakes. Because the knowledge of the human
>>counterplayer is almost always bigger, such mistakes are often very easy to see
>>and take advantage of it.
>>But what I wanted to point out, that also humans have "weak" points. The
>>knowledge of a GM is extrordinary, but sometimes he just doesen't see a hidden
>>response and makes an error. Although he calculates at least as deep or deeper
>>as the computer, he cannot take into consideration every possible response (in
>>time). Computer can easily do so, indeed the calculate also the most sensless or
>>maybe hidden threats. Also the performance of a human always oscillates because
>>of personal fitness. Therefore, the computer gets its chance against the strong
>>players to win Elo.
>>
>>
>>Let's say a 2600 Elo rated computer loses 1 or 2 games in 20 against a 2100 Elo
>>player, but wins 11 : 9 against a 2600 human player. On the other side, a 2600
>>Elo GM loses 0 games against a 2100 opponent, but loses 9 : 11 against another
>>2600 GM player.
>>
>>Computer:
>>1. match: E = 2600 + 10*(19-20*0.98) = 2594
>>2. match: E = 2594 + 10*(11-20*0.5) = 2604
>>
>>
>>1. match: E = 2600 + 10*(20-20*0.98) = 2604
>>2. match: E = 2604 + 10*(9- 20*0.5) = 2594
>>
>>So, through losing 1 out of 20 games against the 2100 player the computer loses
>>nearly no Elo, but it wins Elo by managing a victory by defeating the 2600
>>player. In the end it ends up with more Elo than the 2600 Elo GM losing against
>>his GM friend.
>>
>>Only because the computers lose some games very clearly because of lack of
>>knowledge, I would not rate them as very weak.
>>
>>
>>>Just anothother point. If you have studies stats you must know that your former
>>>sentence is wrong. That if I put the progs on 2400 I must also put the best
>>>humans on 2400. This is nonsense.
>>>
>>
>>Maybe there was a misunderstanding here. I wanted to point out that both humans
>>and computers have their "drawbacks", and it's not justified to just "downgrade"
>>one of the two groups to the 2400 level.
>>Actually, if a human gets outpowered by a computers tactics, its not right to
>>say he played like "2400" because a 2400 player would have lost more than ever.
>>And similarly, if the comp doesen't handle a position correctly, it's not right
>>to say he played like a "2400", because most often even a 2100 would have done
>>better. Let's just say the played not at the best. Computers can very easily be
>>improved, but can humans? :)
>>
>>regards
>>Andreas
>
>I must admit that I am slow. With your reply you gave me a good lesson for a
>phenomenon I underestimated. Now I know why it's so difficult for inventors or
>scientists with new theories or whole systems have so many dufficulties to
>pesuade collegues and people.
>
>I put it into a short sentence. While I am talking about the future and perhaps
>a better system in comp-human games with view on tournament chess NOT new shows,
>you take every existing possibility to misunderstand me in my views on the
>possible future with mainly claiming the factual existence of the present. I see
>not a single idea that _you_ could add to my ideas. All what you have in mind is
>that I must be wrong because I seek a different reality than the present.
>
>Here in your answer you make a basic fault (about the possible development of a
>different chess attempt when it goes against comps) and then of course you are
>correct. What is that fault?
>
>You see the actual stats and take it at face value. What does that mean? You
>pretend that the actual play (also by GM) is the final reply on CC. But exactly
>this is wrong! Anticomp strategies are just a start in the direction if a
>"fierce competition" would begin some day in future. Of course you are correct
>without such a perspective. You see what I mean?
>
>And then: you did not answer my question!
>
>I asked you: Could you explain why a human like a 2100 player could beat a 2700
>comp IF a 2100 human player could never win against a GM with 2700 in a serious
>game! Please answer that question. Just do me a favour.
>
>Rolf Tueschen

Player X is rated 2100,  Player Y is rated 2700, that is a 600 point difference.
 Given the rating difference, Player Y (2700) should win a large percentage of
the games, but not all the games.

If Player X (2100) could get Player Y (2700) to play 1000 games, then Player X
will win/draw a "very small" percentage.  Also, by the end of the 1000 games,
Player X will have learned a lot (hopefully) and will be a lot stronger player
(higher rating).  The problem is that Player X (2100) never plays Player Y
(2700), so the chance of Player X (2100) winning/drawing a single game or
improving from playeing Player Y (2700) is nil.

However, Player X (2100) can buy a (2700) program/computer and play it all the
time, learn weakness, get stronger against this one opponent and then reset the
program to initial settings.  Then Player X (2100) can play a match and score
higher (200 to 300 points) than the delta (600 point difference) rating
predicts.

If Player X (2100) is smart, then buy the (2700) computer/program and improve
your game with it, after a time you will be a better overall player and earn
those extra points.  Just my opinion.  :)

(2700) program/computer = DF, DJ, CT, Hiarcs or Shredder on a 2Ghz Intel or AMD.

Best Regards,
Chris Carson



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