Author: Frank Schneider
Date: 01:45:43 02/16/99
I experimented a little bit with nullmove deepsearch extensions and with singular extensions and now I have some questions: 1. In all my tests the searchtree (#nodes to finish n iterations) increased by a factor of 1.5 to 4. Although testresults were interesting I believe this is too much. What are your experiences? 2. Is it correct to assume that singular extensions work best if there are only few other extension heuristics. 3. How would you describe the difference between nullmove deepsearch extensions (Donninger) and the nullmove threat detection by Deep Thought? 4. Who uses - singular extensions - nullmove deepsearch extensions - nullmove threat detection 5. What is the best (easiest) way to implement singular extensions? Thanks in advance, Frank
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