Author: Eelco de Groot
Date: 06:17:54 05/17/00
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A belated thanks for your explanations, Chessfun! Sorry, I'm not very fast answering. I was wrong then about why you wanted to do your tournament but I think the other questions about pondering and the results of the matches at different timecontrols are at least as interesting as your original reason; to find out if you could reproduce Jouni's results. You were probably right that the programs did not profit much from learning at the faster timecontrols. That is if the two programs would have had some form of booklearning here which I understand they don't because they didn't use their books in the Nunn matches. In theory they could have done some position learning maybe. At first I thought that could have been a possible explanation for the 11-9 result in the match that accidently was run twice. You also reported that Fritz suddenly used a whole minute of its allotted five to decide on castling in the looped through match so I thought that could be the sign of Fritz using learning results and some more time to find a better move. Fritz lost that second match howevever. And when you say you repeated the match again with again a 15-5 score my possible explanation doesn't stand up as a factor because learning, if any, would then still have been on (It couldn't be turned off anyhow). Theoretically I think a program could profit from such form of position learning though. Suppose the timecontrol would not change and the program could store the deepest evaluation of moves of some previous games those could be placed in the transposition tables for a new game if it reached the same position there. If in the previous game the evaluation had gone up or if it had gone down some moves later in the game that could help the program some in calculating another move. But this idea seems so obvious and I have never heard of any progam that actually did this so I think I must have overlooked something here... Anyway, thanks for looking at our questions! Your new tournaments are looking interesting too! Am I correct that for the first "Young Talents" tournament every engine did use its own opening book and that they are now using either Fritz's book or Junior's book in the next two tournaments? There we go again, questions, questions.. Sorry. Eelco
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