Cyclone

an UCI compliant, derivative open source chess engine under the GNU General Public License 3.0 written by Norman Schmidt in C++, based on Fruit and Toga. Cyclone **3.4** uses principal variation search, iterative deepening, MVV-LVA, transposition tables, null-move pruning, quiescence search, futility pruning, history pruning, lazy evaluation, razoring, and various search reductions and extensions. Cyclone's parallel search utilizes threads using a shared hash table.
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 * [[image:Low_pressure_system_over_Iceland.jpg link="http://en.wikipedia.org/wiki/File:Low_pressure_system_over_Iceland.jpg"]] ||~ || **Cyclone**,

Cyclone **xTreme**, based on Fruit 2.1 by Fabien Letouzey, Toga II by Thomas Gaksch, Grapefruit 1.0 by Vadim Demichev, Toga CMLX 145e4 by Teemu Pudas, and Cyclone 3.4 by Norman Schmidt, uses a configuration file to obtain more than 150 evaluation, material, search, and transposition table parameters. || toc =See also=
 * Polar cyclone ||~ ||^ ||
 * Fruit
 * Meteorology
 * Toga

=Forum Posts=
 * [|Cyclone 1.0 beta] by Norman Schmidt, CCC, July 26, 2008
 * [|Cylone 1.0 beta now available] by Norman Schmidt, CCC, July 27, 2008
 * [|Cyclone 1.0 and Cyclops 1.0 avaliable] by Norman Schmidt, CCC, August 04, 2008
 * [|Cyclone 2.0 released] by Norman Schmidt, CCC, November 03, 2008
 * [|Cyclone 2.1 released] by Norman Schmidt, CCC, November 05, 2008
 * [|Cyclone 2.3 released] by Norman Schmidt, CCC, December 23, 2008
 * [|Cyclone 3.4 released] by Norman Schmidt, CCC,	February 01, 2009
 * [|Cyclone] by Aaron87747, autochess, April 28, 2009
 * [|Annals of testing an elusive engine] by Rainer Neuhäusler, CCC, October 05, 2009
 * [|Cyclone xTreme II] by dinosaur123, Rybka Forum, November 11, 2009
 * [|Cyclone / Fire ... question to Norman!] by Frank Quisinsky, CCC, April 29, 2010

=External Links=

Chess Engine

 * [|Cyclone from chesslogik.com]
 * [|Fruit (software) - Derivatives from Wikipedia]
 * [|Posix ports of some recent version of Toga II] by Michel Van den Bergh

Cyclone

 * [|Cyclone from Wikipedia]
 * [|cyclic - Wiktionary]
 * [|Clone (disambiguation) from Wikipedia]

=References= =What links here?= include page="Cyclone" component="backlinks" limit="40"
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