Author: Renze Steenhuisen
Date: 05:13:11 04/08/04
Go up one level in this thread
>>I'm about to start coding on my engine again and have thought about improving >>the endgame play. I don't like using egtb so I'm thinking about using special >>evaluation cases when there are few pieces left on the board. Is this a good >>idea or is special evaluation cases a dead end? > >i do the same. my problem is that i have only covered a couple of special cases >up to now, and not in much detail. another problem is that many things are still >the same for all endgames; e.g. it is nearly always good to have a centralized >king, and it is always good to have passers and candidates and so on. however, >for example the value of a passer depends on the endgame type. so you need some >kind of strategy for computing common things for all endgames, and only doing >some special stuff for the special cases. because if you want to write an entire >eval for every type of ending, your code will get HUGE :-) If it pays of, it doesn't really matter... Although it is lots of work! >i still haven't figured out a really good way to do this myself, my code is a >bit of a mess in this respect :-( Tidy it up then, it gives you some time to think about your code as well. Most of the time I do such a thing it does help! >but in principle, i believe that you need special knowledge for different >endings. there *are* huge differences between different types of endgames, and >this leads to eval discontinuities - but i'm pretty certain that you shouldn't >worry about this. there is the "eval discontinuity = evil" fraction here with >bob as spokesperson. but as a chess player i can assure you that these >discontinuities are absolutely real, and IMO a good evaluation should know about >them... > >cheers > martin What is the definition of End Game in here? Are we talking about late endgame (==EGTBs have been generated), or are we talking about more general things like "Pawn Ending", etc etc? Cheers! Renze
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.