Author: Bruce Moreland
Date: 19:59:30 02/20/99
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On February 20, 1999 at 22:23:08, Pat King wrote: >I haven't implemented this yet, but I was considering doing it as a special case >of iterative deepening. I detect checks by checking for king captures and >immediately returning a losing score. So, you just count the moves for which a >non-losing score is returned, and if 1, search that move again with increased >depth. I don't know what this is achieving. What you want to do is extend in cases where you have one legal response. You can speculatively do this in all cases, or you can do it after a fail-high on the non-extended search. What you in particular want to catch is nodes where your king is in trouble but seems to be surviving. Those are very dangerous nodes. bruce
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