Author: Robert Hyatt
Date: 07:20:57 04/23/00
Go up one level in this thread
On April 23, 2000 at 00:28:01, Chessfun wrote: >On April 22, 2000 at 17:22:52, Robert Hyatt wrote: > >>On April 22, 2000 at 14:20:57, A.L.Mourik wrote: >> >>>Hello dear CCC friends, >>> >>>Although earlier reports from e.g. Jouni Uski, suggest an enormous increase in >>>strenght for Crafty 17.10 >>>Nuun 2 match result Fritz6 against Crafty 17.10 ends in a very clear >>>29,5-10,5!! victory for Fritz6. >>>Played on PII 400 8mb for HT, Timecontrol 5 min + 3 sec per move. >> >> >>This keeps coming up, so I may as well add my two cents worth one more >>time.. >> >>You did _not_ reproduce the results of others. But then you didn't run >>the same test either. You used one computer, presumably with ponder=off. >>That is _not_ a reasonable test. Lots of reasons, but to make it simple: >> >>Let's play a match with no opening book. That favors the program with the >>lousy book. >> >>Let's play a match with search extensions and tricks disabled. That favors >>the program with the best eval. >> >>Let's play a match with evals disabled. That favors the program with the >>best search. >> >>Lets play a match searching to fixed depth. That favors the program that does >>the most work per node. >> >>Let's play a match searching to a fixed time limit. That favors the program >>that has a horrible automatic time allocation algorithm. >> >>In short, when you turn off _anything_ you most likely affect one program more >>than the other. You turned off pondering. I have reported several times that >>such hurts crafty, definitely. I allocate time based on the _assumption_ that >>I will save some time later in the game with correct pondering predictions. I >>don't when I can't ponder. > > >Turning off pondering in the F6 interface is suggested. >It is NOT recomended to enable pondering. > > >>The results are interesting, but they have _nothing_ to do with the way I would >>actually play a game against fritz in a real tournament. I would _not_ play >>without pondering enabled... > > >Your post could have been made as a reply to Jouni's post >since the topic was the same, only a different score. > If you will look back thru the archives, you will find that crafty has _won_ several tournaments played like that. You will also find that I have _always_ said that playing ponder=off is a bad idea, whether it won or lost. Again, ponder=off is fine for testing, etc. It is _not_ fine for playing games where you want to compare two engines... Whether I win, lose or draw, it is still just as wrong. >Thanks.
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