Author: Pauli Misikangas
Date: 14:18:12 01/18/99
Hi all! I'm trying to optimize the size of the alpha-beta window for my shogi program. I understand that if I use a small window, the search terminates faster but re-searches (with full window) are needed more often. On the other hand, re-search is not so bad because I should get some useful values from the transposition table, right? So, what would be a good hit/re-search balance? Do you use always the same window size or change it during the game? I've been thinking that when nothing crucial is happening in the game (maybe during the opening and early middlegame) one might get some advantage by using a very narrow window. When the fight really begins, one could then start using a wider window. Do you think that this might be worth of trying? Is anybody using techniques like this? Is there some cases when it is better not to use AB-window? All the best, Pauli Misikangas Pauli.Misikangas@cs.helsinki.fi http://www.cs.helsinki.fi/~pmturune/index_e.html
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