Author: Uri Blass
Date: 08:56:23 06/15/02
Go up one level in this thread
On June 15, 2002 at 11:40:30, Christophe Theron wrote: >On June 15, 2002 at 07:11:48, Thorsten Czub wrote: > >>On June 13, 2002 at 23:58:46, Christophe Theron wrote: >> >>>On June 13, 2002 at 09:13:43, Robert Henry Durrett wrote: >>> >> >>> >>> >>>The problem is that the problem described above does not exist. >>> >>> >>> >>> Christophe >> >>ok - >> >>a human beeing has a different velocity than a guy on a bike. >>and a different velocity than a guy in a car. >> >>we have a gepard >>we have a guy running, >>a guy on a bike >>and a guy in a sports car. >> >>the race begins. >> >>they all have different behaviour. >> >>after 3 meters >>after 15 meters >>after 50 meters >>after 100 meters >>after 1000 meters >> >>the same counts for chess programs. >> >>put fritz, hiarcs and shredder >>on a pc. >> >>let them play 5' games >>10 minute games >>40/120. >> >>and you get the same different behaviour. >> >> >>if all chess programs would behave linear concerning strength, >>if all creatures would behave linear, >>it would easier to understand. >> >>but the creatures and the programs do not speed up linear. > > > >What you are referring to is the "branching factor". > >From the results at fast and long time controls it is possible to see if some >programs have better branching factors than others. > >As far as I can tell, among the top commercial chess programs (including Hiarcs >8) you will not find notable differences. > > > > Christophe There are some problems here. I guess that it is easy for you to have better branching factor by more aggresive pruning but your program is going to be weaker. You can also ask what is the branching factor of Junior. Unclear because if it jumps from depth 12 to depth 15 then it has a bigger branching factor than the case that it jumps from depth 12 to depth 14. Uri
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