Author: Uri Blass
Date: 08:41:36 11/03/03
Go up one level in this thread
On November 03, 2003 at 11:24:29, Tord Romstad wrote: >On November 03, 2003 at 11:13:59, Uri Blass wrote: > >>I think that the statistics that null move reduce the % of first high may be >>because of the fact that null move save searching a lot of bad lines > >I am not sure precisely what you try to express here, but to me it seems >completely obvious why null move pruning reduce the % of fail highs on the >first move. In nodes where the null move search fails high, the side to >move usually has a very good position, and the first move searched (if >no null move pruning were done) would almost certainly have failed high, >even if it is not the best move. > >Tord This is exactly what I tried to express and exactly the reason that I think that comparing between programs that use different R for null move pruning is useless. Of course if you have only 50% you are in big problem but I am not talking about very weak amateurs but about programs that are at least in the level of Gothmog and my opinion is that for these programs comparison of the % is useless. Uri
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.