Author: Tord Romstad
Date: 03:27:24 01/01/04
Go up one level in this thread
On January 01, 2004 at 02:56:14, Uri Blass wrote: >On December 31, 2003 at 20:43:09, Tord Romstad wrote: > >>On December 31, 2003 at 17:34:03, Sune Fischer wrote: >> >>>On December 31, 2003 at 14:47:28, Vincent Diepeveen wrote: >>> >>>Of course at home everybody kills Crafty completely, heck at home everybody >>>kills Junior and Shredder too :) >> >>I suppose I am the only exception, then. I don't kill any engines at home, >>except >>intentionally inferior engines like tscp and Faile which are designed for their >>pedagocical value rather than for strong play. There are a few other engines I >>can achieve almost 50% against (including Frenzee and SOS, but definitely not >>Crafty, Junior or Shredder), but that's all. >> >>>>You need a bugfree engine to kill crafty, that's all. >> >>In my case, that would definitely not be enough. I am sure there are still >>serious >>bugs left in my engine, but fixing them would not make it even remotely close to >>Crafty in playing strength. I would have to spend lots of time tuning my search >>and eval and doing low-level optimisation in order to have any hope of achieving >>that. > >I think that low-level optimisation is not needed because it is possible to get >a lot by better search algorithm(espacially in long time control). Yes, but I cannot hope to get better than Crafty in that respect. >I also think that you choose to do your engine weaker by encouraging it to >sacrifice wrong sacrifices. You are right, but it doesn't make it all that much weaker. I guesstimate the possible improvement by making my engine less sacrifical to be at most 50 Elo points. > > >> >>In short, I'm 100% sure that my engine will *never* have any chance to beat >>Crafty >>in a long match. Perhaps it could if I spent enough time and energy on it, but >>I have >>many more interesting hobbies to spend my time on. > > >> >>On the other hand, improving my engine until it plays an even game with SOS >>does not seem entirely impossible (though it won't be easy). > >I am not sure. > >I am also not sure if Crafty is better than Sos(they seem to be near the same >level) > >http://www.digichess.gr/infiniteloop/ratings/NIL3_final.txt > >It is possible that Crafty is simply better against gothmog and it is also >possible that you do not use the right time control and crafty is better in >blitz. Could be. I'm not patient enough to play anything slower than blitz games. SOS seems very vulnerable to tactics in blitz games, perhaps it is an engine which benefits greatly from slow time controls. I still find it hard to believe that it "kills Crafty", though. Tord
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