Author: Norm Pollock
Date: 09:35:45 03/18/05
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On March 18, 2005 at 12:11:27, Pallav Nawani wrote: >On March 18, 2005 at 10:34:56, Norm Pollock wrote: > >>On March 18, 2005 at 09:07:50, Dimitris Poulos wrote: >> >>Third, eliminate shorter games (20 moves or less >>perhaps) that probably have an opening blunder or were grandmaster draws. >>Fourth, check the collection of games to be sure that all games have results, >>and that all games have elo ratings within the range you want. >> > >I don't see the point to removing short Grandmaster draws. Can you elaborate on >that? > >Pallav The idea is to eliminate games where there is a high probability of an opening error that was not exploited. What types of games would that be? In Grandmaster draws of 20 moves or less, the players might not have been too intense since the result was "predestined". Therefore their game might contain an opening error that was not exploited. Of course, not all draws are like that. Likewise, games of short time controls or Internet games are not the type of games you want to base an opening book upon. They also might not have been intense enough, leaving open the possibility that an opening error was not exploited. Of course not all such games are not like that. Of course if you feel comfortable with Grandmaster draws and Internet games or even computer games, you can certainly include them into your opening book collection. I only feel comfortable with long time-control over the board human-human games. But that is only my personal opinion.
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