Author: Guido Schimmels
Date: 07:57:45 05/04/99
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On May 03, 1999 at 17:16:41, Will Singleton wrote: >Hmm.. by "untouched", do you mean +- inf? Or rather, do you keep the window >narrow around the expected result? Because if, for example, there's only one >good move, then moves 2-n will fail low, and you won't get the score back. About those implementation details only Chessbase can know. I can't answer how they do it, but ... ...setting the window to +-inf is the easiest way to do. You could have an individual aspiration window for each of the first n moves, that will make things a bit tricky, though - I don't think they do it this way. >And is it pvs, mtd, or ? >Will I guess Fritz uses normal aspiration search or pvs. PS: There was an exhibition match where Fritz ran on a dual processor machine provided by the sponsor (Siemens ?). Especially for that purpose a mtd version was programmed - but it was only 30% faster than the single cpu version. - Guido -
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