Author: stuart taylor
Date: 22:59:30 08/10/00
Go up one level in this thread
On August 11, 2000 at 01:40:39, Uri Blass wrote: >On August 10, 2000 at 20:39:24, James Robertson wrote: > >>On August 10, 2000 at 20:06:15, Adrien Regimbald wrote: >> >>>Hello, >>> >>>Fritz is designed to play well in a "normal" game of chess. Fritz would have >>>absolutely slaughtered the opponent a LOOOONG time before that position arose >>>had the opponent been playing as per the sample line leading to that position. >>>The chances of a position like that ever coming up in a real game of chess are >>>about nil. If I were Frans, I wouldn't even give this position a second of my >>>thought (well, beyond possible implications that Fritz' capture extensions are a >>>bit too greedy..). >>> >>> >>>Regards, >>>Adrien. >> >>Of course. This position means nothing to a real player or program. But it is >>interesting and fun to find positions that "dazzle" programs because it gives us >>insight into what they are thinking. >> >>James > >I disagree that it means nothing. > >People use programs also to analyze strange positions and they should know that >it is better to buy Hiarcs or Junior and not to buy Fritz in this case. > >I think that it is easy to prevent the problem by having an upper bound for the >number of plies that are searched with extensions(Qsearch is one kind of >extension). > >Junior does it and my experience is that it never searches more than 2x plies at >iteration x that mean seeing everything at depth x/2. >I am not sure about the numbers and they may be slightly different (2x+1 >instaead of 2x or (x+1)/2 instead of x/2 when x is odd) but the idea is clear. > >Uri I think it is disgusting! Even my old turbo King 2 gets every possible mate in 2 without even a momments delay. When analysing I like to feel confident that the computer sees everything, atleast short term. S.Taylor
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.