Author: Ed Schröder
Date: 04:59:15 08/10/98
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>Hi all! >I would like to tell you something about an idea which I had this >weekend. I talked a bit about it with Bruce at ICC and he said that it >might already be a known idea. I would appreciate some feedback. >Some time ago someone (KK?) posted statistics about the first moves of >white. This seemed rather useless for me. More interesting would be >the the likelihood of _any_ move played in a won game by a strong >player. This information e.g. could be used for a trivial move >ordering. My plan is to do the following: >1. Use a precalculated list of all possible moves for the move > generator in your chess engine. >2. Add a counter to the move structure >3. scan a large database with only high quality games and > increment the counter for each game where the winner made this > move. You will find the idea in Rebel10. It will be an option as I don't know if it makes the program stronger or weaker. The idea goes further in respect that results found in the database are subject to the Rebel score. For every move found in the database Rebel will give a flexible bonus or penalty based on the percentage and average ELO found in the database. In this way it is the database who will guide Rebel which move to play. Blunders are automatically filtered because the search will decide after all. - Ed - >The counter could be used to perform a very simple but also cheap move >ordering or even for the evaluation itself. This idea could be improved >if you don't store only a counter but a set of (pawnstruct, counter) >pairs. > >What do you think? > >Greetings, >Steffen.
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