Author: Sandro Necchi
Date: 06:43:30 05/18/03
Go up one level in this thread
On May 18, 2003 at 08:23:59, Uri Blass wrote: >On May 18, 2003 at 02:15:41, Ernst Walet wrote: > >>On May 17, 2003 at 17:41:31, Uri Blass wrote: >> >>>On May 17, 2003 at 16:20:52, Ernst Walet wrote: >>> >>>>On May 17, 2003 at 14:16:23, Peter Stayne wrote: >>>> >>>>>Question of curiosity: >>>>> >>>>>Even though Shredder 7.04 is such an extremely strong engine, there's no doubt >>>>>that Stefan is working on improving it for a Shredder 8. I've seen many >>>>>programmers on these forums asking for help with their engines, but can anyone >>>>>speculate as to what areas of the Shredder engine he could be improving to make >>>>>it even stronger? Are we getting any closer to the point where, given the same >>>>>hardware, it's almost impossible to make an engine stronger? Or do we still have >>>>>a long way to go? >>>>> >>>>>Pete >>>> >>>> >>>>In the CSVN tournament Shredder (7.06) seached 18 ply average in the middlegame. >>>> This is an improvement over 7.04, which searches about one ply deeper as 7, in >>>>the same time of course. >>>> >>>>Ernst. >>> >>>It is easy to search more plies by unsound pruning. >>>I do not say that it is the case but >>>plies tell me nothing about improvement. >>> >>>Uri >> >> >>Look at the results at CSVN and tell me if Stefan did a sound thing with >>Shredder... >>Ernst. > >The results cannot tell me this information. > >Not enough games and >I also do not know if other programmers did unsound things. > >There are a lot of possible theories. >Maybe all the programmers except the programmer of chessmaster did >unsound things and this is the reason for the success of the king. Well, 7 or 9 games are not enough to see improvement in a way or another. Ones need between 200 to 500 games to see improvements unless they are over 100 points. Even so 9 games would not be enough. The lucky factor (good variations or mistakes by the opponents) can vary too much the results in a few games. Anyway the 7.06 version is stronger in Stefan testing compared to 7.04. I would say that we are about half a way between Shredder 7.04 and Shredder 8. Ciao Sandro > >I do not say that it is the case but only that >even in case that we get significant results(it is not going to happen because >the tournament has not enough games) >we cannot compare between new shredder and programs like >old Fritz8 that does not play there. > >Uri
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