Author: Pham Hong Nguyen
Date: 16:59:37 01/29/04
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On January 29, 2004 at 18:38:39, Ed Trice wrote: >I am wondering if someone could tell me how Eugene's databases remove the >illegal positions where one side is in check and it is the other side's turn to >move. > Just mark those positions by a special value, say, ILLEGALPOS. In my database, ILLEGALPOS = 255 >Are they "left in there" and just never accessed? In the real battles, those positions are never accessed because they are simply illegal. They are useful only when you generate tablebases or do a research. > >Also, I think I have a solution to remove every illegal/impossible chess >position from the databases, not just the king_king illegal adjacencies. > >Any reply would be greatly appreciated. It is good if you have a new solution. However, you may need to consider about the balance between the new benefit and the time to find out a position. +Pham
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