Author: Robert Hyatt
Date: 07:51:47 07/08/99
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On July 08, 1999 at 01:38:37, blass uri wrote: > >On July 07, 1999 at 23:18:35, Robert Hyatt wrote: > > ><snipped> >>In _my_ case, I do _not_ worry about solving problems. They help little in >>solving games positions, because you can spend way too much time following >>checking lines that are futile... IE for every forced draw that Crafty walks >>into (with this theme) there are dozens of positions where it plays _better_ >>by not wasting the time following the checks.. > >Can someone post some of these positions that it plays _better_ >by not wasting the time following the checks.. > >Uri Take the position we were discussing, and move the rook over so that the black king can escape. Yet the search will still follow the long series of checks where the king goes up the board, back down the board, and then escapes. And it will cost a ply or two to search that long branch for _every_ move at the root that can be searched, plus everywhere else in the tree that the long series of checks is still possible. It would be quite easy for 99% of the search space to be nothing more than following that series of checks over and over...
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