Null Move
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A null move or passing move is invalid in Chess. Nevertheless, chess programs often apply a null move inside their search algorithm for various reasons and applications:
- Botvinnik-Markoff Extension
- Double Null Move
- Fail-High Reductions
- Mate Threat Extensions
- Null Move Observation
- Null Move Pruning
- Null Move Reductions
- Threat Detection
See also
Forum Posts
- Null move in PV by Harm Geert Muller, CCC, July 18, 2012 » Principal Variation
- tt move vs null move by Erin Dame, CCC, May 27, 2017 » Hash Move
- Fifty move counter and Null move by Tamás Kuzmics, CCC, August 09, 2017 » Fifty-move Rule, Null Move Pruning
- idea: null-move analogy by Harm Geert Muller, CCC, March 06, 2019 » Null Move Pruning