Null Move Observation
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Null Move Observation,
the observation that for the side to move there is almost always a better alternative (move) than doing nothing. The Null Move Observation might be considered as tempo bonus in evaluation, but it fails in Zugzwang situations.
Contents
Base
The Null Move Observation is base of:
- Null Move Pruning
- Null Move Reductions
- Fail-High Reductions
- Razoring
- Reverse Futility Pruning
- Standing Pat in Quiescence Search [1]
Publications
- Gordon Goetsch , Murray Campbell (1988). Experimenting with the Null Move Heuristic in Chess. AAAI Spring Symposium Proceedings, pp. 14-18.
- Don Beal (1989). Experiments with the Null Move. Advances in Computer Chess 5, a revised version is published (1990) under the title A Generalized Quiescence Search Algorithm. Artificial Intelligence, Vol. 43, No. 1, pp. 85-98. ISSN 0004-3702, edited version in (1999). The Nature of MINIMAX Search. Ph.D. thesis, IKAT, ISBN 90-62-16-6348. Chapter 10, pp. 101-116
- Don Beal (1990). A Generalized Quiescence Search Algorithm. Artificial Intelligence, Vol. 43, No. 1, pp. 85-98. ISSN 0004-3702
- Rainer Feldmann (1997). Fail-High Reductions. Advances in Computer Chess 8, available as pdf from CiteSeerX
- Don Beal (2006). Review of a nullmove-quiescence search mechanism from 1986. File:Alg1986review.txt (Draft) [2]
Forum Posts
- Without the null move observation by Diogo Barardo, CCC, January 11, 2012
References
- ↑ Re: Without the null move observation by Harm Geert Muller, CCC, January 11, 2012
- ↑ courtesy of Don Beal and Carey Bloodworth, Re: Antique chess programs by Carey, CCC, December 16, 2015
