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Subject: Re: Practical lesson for statistics

Author: Mike Byrne

Date: 19:44:08 12/29/03

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On December 29, 2003 at 21:49:40, Mike Byrne wrote:

>On December 29, 2003 at 15:47:05, Vincent Diepeveen wrote:
>
>>On December 29, 2003 at 13:59:55, Mike Byrne wrote:
>>
>>
>>
>>>On December 29, 2003 at 13:23:33, Sandro Necchi wrote:
>>>
>>>>On December 29, 2003 at 12:46:47, Luis Smith wrote:
>>>>
>>>>>>I do agree too.
>>>>>>
>>>>>>Crafty has no realistic chances to win a WCCC.
>>>>>>
>>>>>>Sandro
>>>>>
>>>>>IMO only Bob can know this for sure.  I think people either over estimate the
>>>>>commercials, or underestimate Crafty.  After all at the WCCC's only 11 games
>>>>>were played, who knows what could have happened in that time, especially with
>>>>>the kind of hardware that Dr. Hyatt could get.
>>>>
>>>>No, Bob does not know this.
>>>>He is a "little outdated" on this matter.
>>>>
>>>>At the 2003 WCCC there were 3 favorites (Shredder, Fritz and Junior), 2 possible
>>>>outsiders (Brutus and Diep).
>>>>
>>>>Based on my experience I gave these chances, before the tournament started:
>>>>
>>>>Shredder 35% (because of the slower hardware)
>>>>Fritz    30%
>>>>Junior   25%
>>>>Brutus    7%
>>>>Diep      3%
>>>>rest      0%
>>>
>>>
>>>The rest of the field is never 0%.  Any bookie can tell you that.  It might be
>>>15 to 1, 30 to 1 -- even a 100 to 1 . but the chances are never "zero" - that
>>>would make the payoff infinity.
>>
>>Wrong.
>
>Vincent, I love you - you have not lost not one iota of ability to doublespeak.
>
>I'll skip futher down.
>
>
>>
>>When Diepeveen (FM) 2300 plays Jonathan Schaeffer in chess at FIDE level (40 in
>>2 + 20 in 1 + 15, you are correct that he has a 1% chance to win from me. It
>>happens each so many years that i lose from a national master (2000 rated USCF).
>>Statistically his chance is higher by the way than in reality. The only 2000
>>rated player i lost from last 6 years a 2 hours game (so not fide rated even,
>>only national) was a youth talent who was 2200 rated one rating list later (so
>>underrated).
>>
>>The only reason Jonathan has a chance is because he can play without blundering
>>away all pieces and he knows at which spot a piece is best. He has of course
>>experience playing titled players in tournament games.
>>
>>Depending upon whether he has practiced past weeks, Jonathans chances will be
>>1.5% or 0.5% practically spoken. This is simply not interesting. There is *some*
>>chance. Chance is bigger when i'm feeling a bit sick of course.
>>
>>We can of course argue a long time about how high the chance is and we will
>>never agree i bet. My argument will be he has less than 1% chance because USCF
>>is inflated compared to the european ratings of today.
>>
>>However,
>>
>>Diepeveen - Eric van Reem (1803 national rated in Netherlands)
>>
>>That's a 0% chance for Eric. I will be motivated to my bones to beat someone
>>like Eric of course.
>>
>>Now people will go start using statistics that i might blunder once in my life
>>at move 7 away a piece or something, or that eric has some trick once in his
>>life which he sees and he wins from me.
>>
>>All possible.
>>
>>When i claim to never lose, that's just a claim. At a certain level people
>>simply give away too little pieces to ever lose from very low rated players.
>>
>>But still people will tell here: "well perhaps the chance is 0.0001 but it is
>>possible that once in your life you blunder away that piece against a 1800
>>rated".
>>
>>This argumentation is true of course.
>>
>>           VIRTUAL REALITY
>>
>>But now the reality. I ask the statisticians now: what is the chance that at an
>>11 round match, Eric van Reem(taken many pictures from titled players) will beat
>>Vincent Diepeveen(FM), perfectly healthy and playing for his life, in a 11 round
>>match?
>>
>>But now let's say that i am not so healthy, despite feeling healthy, and by
>>coincidence that week have a virus which kills my possibilities to play well.
>>
>>I bet statistics will say 0.00000000000000000000001 at most now.
>>
>>
>>           REALITY
>>
>>The real reality is that in a world champs Eric van Reem isn't only playing FM
>>Vincent Diepeveen. Reality is that everyone is motivated to win. First round he
>>gets GM Alterman, then he gets Omid David Tabibi (didn't play much lately but
>>plays very strong 2200+ hands down), then he gets 2343 FIDE rated Johannes
>>Zwanzger and that for 11 rounds.
>>
>>Now the 0.00000000000000000000001 changes in 0 simply.
>>
>>Imagine next, a 11 round world championship humans. the participant list:
>>
>>1. Kramnik     2777 (note that his matches vs kasparov and such were never
>>                     counted for FIDE rating, fide has boycotted that.
>>                     Lucky kasparov)
>>2. Ponomariov     2718
>>3. Kasparov       2830
>>4. Anand          2766
>>5. Adams          2725 ENG
>>5. Svidler        2723 (qualified at internet)
>>6. Polgar         2722
>>7. Ivanchuk       2710
>>8. Sokolov, Ivan  2695 NETHERLANDS
>>9. Ye, Jiangchuan 2681
>>10.Lautier        2666 FRANCE
>>11.Onischuk       2661 USA (highest rated US player who is active)
>>12.Van Wely       2654 NETHERLANDS
>>13.Seirawan       2621 USA
>>14.Bu, Xiangzhi   2606 CHN  (Born: 1985-12-10)
>>15.Diepeveen      2276
>>16.Hyatt          1800 (local rating, FIDE starts at 2000 for international
>>                        events)
>>
>>time control 40 in 2. rounds = 11
>>
>>If we play 11 rounds you are now claiming that number 15 and 16 have a tiny
>>chance to win the world title FIDE?
>
>No, show me where I claimed that - classic Vincent doublespeak. In the example I
>used , somebody has picked the top 5 out of 14 and said the rest of the field
>had 0%.  To use your example, the rest of the field is with Polgar on down - are
>YOU now claiming that 6 through 16 have no shot.  It's not 0.0000000000000001%.
>
>My God, that is biggest nonsense i ever heard!
>
>
>>
>>That is the biggest nonsense i ever heard!
>>
>>The chance is not 0.00000000000000000000000000000001
>>The chance is 0 exactly.
>>
>>Just like the world champion FIDE 2004 will never be a player rated < 2600 for
>>the very same reason.
>>
>>The only reason bookmakers give 1 to 30, is because they earn more giving 1 to
>>30 than when they would give 1 to 100.
>>
>>>Besides, the tournamnament format , imo, is stupid.  An 11 round swiss with 14
>>>or so participants? - they should make a "normal" swiss (say 5 rounds with 14
>>>participants or a round robin - add just 2 more rounds with 14 participants.  I
>>>forget exactly the number of rounds and participants, but I'm not far off.
>>>
>>>
>>>>
>>>>Do you really believe Crafty is better than the average rest? I do not. He would
>>>>have to rely on too many bugs on the competition. This is not realistic.
>>>>
>>>>Of course everybody can say anything different, but in reality this is the
>>>>situation.
>
>
>The reality is this -- the performance ratings of WCCC at Graz.  The odds are
>Crafty would have finished somewehre between List and Brutus according to the
>latest SSDF results.  Crafty is just about 200 points behind Shredder on equal
>hardware on the latest SSDF ratings.  Your beloved Diep finished nearly 400
>points behind Shredder in this tournament and would have no shot against Crafty.
> That's reality.
>
>1	Comp Shredder		2734	11
>2	Comp Deep Fritz		2722	11
>3	Comp Deep Junior	2632	10
>4	Comp Brutus		2596	11
>5	Comp List		2485	8
>6	Comp Greenlight Chess	2415	10
>7	Comp Diep		2344	10
>8	Comp Quark		2323	10
>9	Comp Chinito		2321	11
>10	Comp Falcon		2262	10
>11	Comp ParSOS		2253	11
>12	Comp Deep Sjeng		2234	11
>13	Comp Jonny		2228	11
>14	Comp Nexus		2169	11
>15	Comp Hossa		1947	10
>16	Comp Ruy Lopez		1935	10
>
>note _ calculation was based on actual games played - no forfeit wins - another
>loving dose of reality.
>
>love,
>
>Michael


I forgot to mention - the ratings above were derived using the Fritz rating tool
- I made no effort to calibrate them to anything else - they are only good
relative ratings to each other --- not to SSDF, USCF, FIDE etc.  It 's the delta
between the programs that  may be useful, the absolute values mean nothing in
this context.



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