Author: Uri Blass
Date: 03:04:07 06/15/05
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On June 15, 2005 at 04:10:29, Fabien Letouzey wrote: >On June 14, 2005 at 16:03:42, Roger D Davis wrote: > >>Looks like the latest editions of Fruit and Fruit-Toga are very strong. Is there >>any single structural feature that makes them so strong? Is it speed, or tuning, >>or what? >> >>Roger > >Not a single feature, not speed and not tuning either. I think that speed is certainly one of the advantages of Fruit relative to Movei. I read that Fruit had problem of not checking if the hash move is legal. Movei has never that problem because unlike fruit it is not optimized for speed. Movei generates all moves before looking at the hash tables and it needs to do a loop on all the moves in order to make the hash move because it need to replace it with a different move in the list. Movei have no incremental move generator and have a list of moves before looking at the hash and simply does a loop on the list of legal moves in order to find the hash move. Movei still has no capture generator and the qsearch is done by generating list of all the legal moves and looking for captures. Uri
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