Author: Chessfun
Date: 07:57:55 04/23/00
Go up one level in this thread
On April 23, 2000 at 10:20:57, Robert Hyatt wrote: >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. I am aware of all the facts you point out here. And that you have always maintained ponder=off is a bad idea. >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. What were these games if not testing?. It may be just wrong yet the Fritz 6 interface clearly states that it is right from Chessbases point of view. Genius is also set up this way with a two engine match ponder=off. In Chessbases case if you click ponder on it will even ask if your sure you want to do that. Thanks. > >>Thanks.
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