Author: Ola Mikael Hansson
Date: 02:46:49 04/10/99
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On April 09, 1999 at 00:00:55, Roberto Waldteufel wrote: >On April 08, 1999 at 22:56:04, Christophe Theron wrote: > >>I'm wondering if the concept of QSearch applies to >>Othello/Reversi too? >> >>Do they use extensions >>in Reversi? Some programs do use extensions, mainly for the corner-squares (and also, in some cases, for the squares adjacent to the corners). Also, at least one program has a table of the possible edge configurations, labeling each one of them as stable or unstable. If an edge configuration is unstable, it extends the search by trying moves on that edge. Most programs, however, use no quiescence search at all or very little. This is probably due to that othello is mainly a positional game and not a tactical, so the static evaluations of a position aren't very volatile. >1) How common is zugzwang? If it is rare, then null move is called for. Hmm... what other games than chess has null move been successfully used in? /Ola
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