Author: Peter Skinner
Date: 07:45:42 07/14/03
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On July 13, 2003 at 04:24:18, Kurt Utzinger wrote: >On July 13, 2003 at 02:48:12, Peter Skinner wrote: > >>What is the estimated ELO increase when tablebases are in use rather than when >>not in use? >> >>I have been running a test on FICS for some time now, and I can not see a great >>difference in play with Chess Tiger with or without them. I estimate about a 20 >>point increase with them in use. >> >>Do different engines benefit more or less from them? What engines would these >>be? >> >>Peter. > > It still seems not clear if the use of the EGTB do contribute to > increase the overall playings strenght of an engine, please also > have a look at http://f11.parsimony.net/forum16635/messages/49266.htm > Kurt Thanks Kurt, I have read something like that in the past. It seems some engines do require them more than not. When a program faces itself, it seems to not require them as much as when facing other opponents. Chess Tiger is the best program I think without tablebases. Tiger 12, and Tiger 13.0 both didn't have tablebase support, yet dominated all. In watching it play online, very few times would tablebases have changed the possible outcome of the game. Very few. Crafty on the other hand seems to benefit from them very much. I would almost say that it requires them when facing other programs and humans online. I have seen it turn drawn games into wins due to the tables, and loses into draws due to them as well. I have not seen it play to a draw from a winning position. Shredder also seems to play better with them, just from my point of view though. Peter.
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