Author: Paul Massie
Date: 00:47:33 12/05/97
Go up one level in this thread
On December 04, 1997 at 20:14:58, Don Dailey wrote: >On December 04, 1997 at 15:32:50, Rajen Gupta wrote: > >>Tuning a book against a particular opponent should not be too >>difficult.eg to tune Pragramme A's book against Programme B you get them >>to play a large no of games against each other.You then select those >>games which programme A has won and incorporate these moves into >>Programme A's opening book.For the games which Programme A has lost you >>either get rid of these openings or reduce their weightage so that the >>programme is unlikely to play these moves next time.you can do this >>against a number of different programmes and if you spend a whole year >>building up this sort of opening database I am sure you are pretty well >>armed against your selected target programmes.I guess it would be a lot >>easier for the lesser known programmes to equip themselves against the >>better known ones rather than the other way round due to the free >>availability of the latter, and this I think is one of the factors why >>the top commercial programmes are dead scared of facing these assassins >>in sporadic computer vs computer world championships! > >Shouldn't each team have a separate book for important competetions and >one for commercial use? That way people can prepare until they are >blue in the face but they won't know in advance what you will play. > >This is a testament to the strength of todays programs. When programs >were much weaker I think it mattered less since there were so many >opportunities to take advantage of weak moves. Now you can lose a game >in the opening book before the computer has a chance to play the first >move on its own! When cilkchess gets into trouble out of the opening >book it generally takes a long time to recover (assuming we recover at >all.) This is basically the same process humans go through. When you're playing relatively weak opponents opening preparation is not so important, because there'll be plenty of opportunities to win during the game. As the players become master-level, the mistakes (and thus the opportunities) become smaller and less frequent. Finally, at the top levels opening preparation becomes virtually all-consuming, because the mistakes outside of the opening are so small and infrequent that coming out of the opening with a good or bad position almost guarantees the result of the game.
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