Author: Uri Blass
Date: 16:25:20 11/08/04
Go up one level in this thread
On November 08, 2004 at 18:57:01, chandler yergin wrote: >On November 08, 2004 at 17:43:18, Uri Blass wrote: > >>On November 08, 2004 at 16:25:48, chandler yergin wrote: >> >>>On November 08, 2004 at 12:05:19, Uri Blass wrote: >>> >>>>On November 08, 2004 at 11:31:59, chandler yergin wrote: >>>>>Oh, it finds it v-e-r-y- Quickly! >>>>> >>>>>Just doesn't think too highly of it! >>>>> >>>>>Looks like your 'immortal' game, is very Mortal. >>>>> >>>>>Ed - Rebel 12 >>>>>rnbq1rk1/pp1n1p1p/4p1p1/3pP1N1/1b1p1P1P/2NB4/PPP3P1/R1BQK2R w KQ - 0 1 >>>>> >>>>>Analysis by Shredder 8: >>>>> >>>>>11.h5 dxc3 12.b3 Qc7 13.hxg6 fxg6 14.Rxh7 Qb6 15.Ke2 Rd8 16.Bxg6 Kf8 17.Rh8+ Kg7 >>>>>18.Rxd8 Qf2+ 19.Kxf2 Kxg6 20.Rxc8 Nxe5 21.fxe5 >>>>> ³ (-0.45) Depth: 12/12 00:00:00 >>>> >>>>>11.h5 dxc3 12.b3 Qc7 13.hxg6 fxg6 14.Rxh7 Qb6 15.Ke2 Rd8 16.Bxg6 Kf8 17.Rh8+ Kg7 >>>>>18.Rxd8 Qf2+ 19.Kxf2 Kxg6 20.Rxc8 Nxe5 21.fxe5 >>>>> ³ (-0.45) Depth: 16/16 00:00:01 271kN >>>>> >>>>>(Yergin, MyTown 08.11.2004) >>>> >>>>It is obvious that it learned from previous abalysis. >>>>No change in the score or in the main line from depth 12 to depth 16. >>> >>>Check the TIME! >>>00.01 seconds >> >>The time is not important > >Why? >>It is obvious that Shredder8 cannot get depth 16 in 1 seconds in this position >>without learning. > >Learning from what? Learning from previous analysis of the game. If I know combination I can also find the first move in 0 seconds and you gave shredder8 to analyze the game before giving it the relevant position so it remembered a score for h5 at small depths and did not need to analyze h5 and only analyzed other moves to find that they are not better. > > >> >>I do not have Shredder8 but here is some analysis by Shredder7.04 on A1000 and >>it does not get h5. >> >>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. Main line and score is something that is usuaully changed frequently in the first minutes and if you see the same score for some minutes then you should understand that the program already remember them from previous analysis. Uri
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