Botvinnik-Markoff+Extension

toc
 * Home * Search * Selectivity * Extensions * Botvinnik-Markoff Extension**

The **Botvinnik-Markoff Extension** is an extension proposed by Sergei Markoff, inspired by Mikhail Botvinnik's work and publications on the program Pioneer, for instance to determine attack/defense targets for further analysis of attack/defense trajectories. The extension is based on the threat move detection in null move pruning. If the threat move is the same on two consecutive plies (with one ply in between them to account for the side to move), the threat move is a serious one and the search is extended.

=See also=
 * Mate Threat Extensions
 * Threat Detection

=Forum Posts=
 * [|Markoff - Botvinnik - Kaissa - Hsu - ABC - Berliner] by Walter Faxon, CCC, June 09, 2003
 * [|The "same threat extension" as effective way to resolve horizon problem] by Sergei Markoff, CCC, October 01, 2003, introducing the extension
 * [|Test match with the Botvinnik-Markoff extension] by Tord Romstad, CCC, October 02, 2003
 * [|What is Botvinnik-Markov extension?] by Maurizio Monge, CCC, October 26, 2005
 * [|Botvinnik Markov revisited] by Don Dailey, CCC, Jun 24, 2010

=References= =What links here?= include page="Botvinnik-Markoff Extension" component="backlinks" limit="40"
 * Up one level**