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Subject: Re: Immortal game? Qc7?! analyse by S8 (Be7!)

Author: chandler yergin

Date: 18:58:55 11/08/04

Go up one level in this thread


           (snip)

On November.
Without analysis Fritz 5.32 & Crafty also found 11. h5 with no problem.

I just did it!

>Fritz5.32 and Crafty cannot find 11.h5 in a short time
>I checked and found that Fritz5.32 cannot find it in a reasonable time.

They did for me.. NO Previous analysis


>The facts are that Crafty even cannot find 11.h5 after many hours based on
>analysis that was posted here.

Then someone did something wrong.



>Of course it may find it if you use a special personality but I talk about the
>default personality.

I don't use personalities.. just factory settings!


>
>>
>>You were expecting this?
>>
>>Ed - Rebel 12
>> [D]rnbq1rk1/pp1n1p1p/4p1p1/3pP1N1/1b1p1P1P/2NB4/PPP3P1/R1BQK2R w KQ - 0 1
>>
>>Analysis by Shredder 8:
>>
>>11.Qh5 gxh5 12.Nxh7
>>  -+  (-9.90)   Depth: 1/4   00:00:00
>>11.Qh5 gxh5 12.Bxh7+ Kg7
>>  -+  (-10.55)   Depth: 1/4   00:00:00
>>11.Qh5 gxh5 12.Bxh7+ Kh8
>>  -+  (-10.38)   Depth: 1/5   00:00:00
>>11.0-0 dxc3
>>  -+  (-5.13)   Depth: 1/5   00:00:00
>>11.0-0 dxc3
>>  -+  (-4.06)   Depth: 1/5   00:00:00
>>11.0-0 dxc3
>>  -+  (-4.04)   Depth: 1/5   00:00:00
>>11.Bxg6 Bxc3+ 12.bxc3 hxg6
>>  -+  (-4.00)   Depth: 1/5   00:00:00
>>11.Bxg6 fxg6 12.Qxd4
>>  -+  (-3.54)   Depth: 1/5   00:00:00
>>11.Bxg6 fxg6 12.Nxe6 Bxc3+ 13.bxc3
>>  -+  (-3.46)   Depth: 1/7   00:00:00
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 1/7   00:00:00
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 1/7   00:00:00
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 2/2   00:00:00
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 3/3   00:00:00
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 4/4   00:00:00
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 5/8   00:00:00
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 6/14   00:00:00
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 7/10   00:00:00  6kN
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 8/8   00:00:00  15kN
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 9/12   00:00:00  16kN
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 10/21   00:00:00  31kN
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 11/24   00:00:00  64kN
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 12/24   00:00:00  170kN
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 13/20   00:00:01  337kN
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 14/26   00:00:02  690kN
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 15/32   00:00:05  1349kN
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 16/30   00:00:08  2049kN
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 17/42   00:00:18  5155kN
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 18/40   00:00:28  8195kN
>>11.h5 dxc3
>>  ³  (-0.27)   Depth: 19/37   00:00:46  13986kN
>>11.h5 dxc3 12.hxg6 hxg6 13.a3 cxb2+ 14.axb4 bxa1Q 15.Rh8+ Kxh8 16.Bd2 Qxd1+
>>17.Kxd1 Nxe5 18.fxe5 Kg7 19.Bxg6
>>  ³  (-0.52)   Depth: 20/52   00:02:37  51108kN
>>
>>(Yergin, MyTown 08.11.2004)
>
>Score for 11.h5 goes down so shredder may change it's mind if you give it more
>time.

Propably will.


>It clearly learned and your analysis now is different from previous analysis.

No, that's what I got the first time..




>>>>>I do not have Shredder8 but here is some analysis by Shredder7.04 on A1000 and
>>>>>it does not get h5.

Then you need Shredder 8!


>>>>>
>>>>>after learning I suspect that yace can also see it very fast so it proves
>>>>>nothing
>>>>>
>>>>>Shredder8 may be able to search deeper but not that deeper.
>>>>
>>>>
>>>>Check the Analysis and times...
>>>
>>>This is exactly the point.
>>>The analysis and the time does not make sense for a program that did not learn
>>>from analysis of the game.
>>
>>Of course it does.. It doesn't just check Main Line.. it evaluates many,
>>you just have the PV showing.
>
>I am not talking about the fact that it searches many lines but about the fact
>that I am sure that shredder 8 cannot find h5 in a short time if the user analyze
>the game so shredder updates his learning files.

Well it did and does. It's fast too.
Why do think it or any Top Program will not consider logical Candidate moves?
Also Shredder has a large Opening Tree, and it references the Database.
The 'Target' at g6 is usually hit by h4 h5.
Like Fisher says.. Open the H file, than Sac, Sac. Mate!

Black played very poorly; I think it got out of book very early.
It played a bad strategy.
White took advantage of the positional Defects in the position.


>
>I am sure that it's evaluation is not going to be constant at depthes 1-19 if it
>does not use learning files that it learned from previous experience.
>
>If you give it position when it already saw related position from the game then
>it is biased.
>
>If it searched the position after 11.h5 to depth 18 in the past then it may
>remember that the result of the search was -0.27 for white and use this memory
>to get score for 11.h5 at depths 1-19 without searching 11.h5 when it searches
>other moves to see that they are weaker than -0.27
>
>Uri



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