Author: Severi Salminen
Date: 13:23:44 12/19/01
Go up one level in this thread
>One of the move ordering stats I keep track of is the ratio of >fail highs on the first mv vs. the number of total fail highs. >Previously this number has been at 87% for the first 100 problems >of the Win at Chess suite. (My eval is so simple I don't bother >testing more than that yet. :) ) > >With a pretty kludgy null search with R=2, I'm getting a few more >problems right, and searching a little deeper on average. An >observation I made, though, is that the ratio mentioned above fell >to 78% - a delta of 9%. I get something like 96% with nullmoves and 99% without. But this was only one position (after 1.e4 e5 2.d4 d5). I don't use hashtables yet, which will improve the figures even more. 78% is way too low, but the reason is probably poor ordering, not nullmove itself. Severi
This page took 0.01 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.