Computer Chess Club Archives




Subject: Re: When to do a null move search - an experiment

Author: Dave Gomboc

Date: 20:26:12 04/29/04

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>>>No of course not, brute force is silly, Rebel since day 1 has been a selective
>>>program. But I am getting your point, in the days before the nullmove was
>>>discovered Genius and Rebel had the best (static) selective search, a dominant
>>>factor in their successes, is that what you meant to say? If so, it is true.
>>>If only Frans had kept his mouth shut to Chrilly (Chrilly leaking nullmove in
>>>the ICCA journal) it is very likely Fritz would been the next Richard Lang still
>>>dominating all the rating lists and WCC's for the last decade. But Frans didn't
>>>and then all bets were off.
>>Donninger published the article in 1993. Before that, there were two other
>>publications dealing with null-move:
>Yes, nullmove as we use it today, the other 2 articles not.
>>Beal, D.F. (1989). Experiments with the null move. Advances in Computer Chess
>>5, (Ed. D.F. Beal) , pp. 65--79.
>>Goetsch, G. and Campbell, M.S. (1990). Experiments with the null-move heuristic.
>>Computers, Chess, and Cognition, (Eds. T.A. Marsland and J. Schaeffer), pp.

I think that while Chrilly Donninger's article was important, if it had not been
published the idea would have been discovered and published later anyway.  The
question is how much longer would it have taken to become public knowledge?  Of
course, we can never know, but given that people were doing experiments with the
null move already I don't think it would have taken a whole decade.


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