Author: Dieter Buerssner
Date: 11:09:32 05/12/05
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On May 12, 2005 at 06:08:22, Rafael Andrist wrote: >On May 12, 2005 at 04:46:43, Walter Faxon wrote: > >>Have any egtb's been generated with the current rule in mind? > >Yes. Search the CCC archives for "DTZ" One might note, that pure DTZ is not enough in general - for example for kqpkp. But a slightly changed DTZ generator (perhaps together with some additional logic in the access routines to take the half move counter into account) can do it. However, in positions, that don't result from an immediate capture or pawn push, the problem will be pretty unsolvable. (Normal TBs cannot do it either, even when not considering the 50 moves rule, because you might have had a repetition already on the path to this position, and the shown mate might go through another repetition. In games played from start to end by an engine with TBs this will never be a problem). Regards, Dieter
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