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[[FILE:Crux IAU.svg|border|right|thumb| Crux constellation <ref>[https://en.wikipedia.org/wiki/International_Astronomical_Union IAU] Crux chart, June 05, 2011, [https://www.iau.org/public/themes/constellations/ IAU] and [https://www.skyandtelescope.com/ Sky & Telescope magazine] ([https://www.skyandtelescope.com/about-us/roger-w-sinnott/?c=y Roger Sinnott] & [https://www.skyandtelescope.com/about-us/richard-tresch-fienberg/ Rick Fienberg]), [https://creativecommons.org/licenses/by/3.0/deed.en CC BY 3.0], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons], [https://en.wikipedia.org/wiki/Crux Crux (constellation) from Wikipedia]</ref> ]]
'''Crux''',(Crux Chess for Windows)<br/>a chess engine by [[László Szalai]], written in [[Delphi]]. It '''Crux Chess for Windows''' runs under [[Windows]] either in console mode or with an own [[GUI]], and as first Hungarian the [[WinBoard]] program version <ref>[http://titanic.nyme.hu/~wyx/crux/ Welcome on official CRUX home page]</ref> and also supports the [[Chess Engine Communication Protocol]].
The search is plain [[Alpha-Beta|alpha-beta]] improved by [[Null Move Pruning|null move pruning]] and the [[Killer Heuristic|killer heuristic]].
Crux played the [[ICT 2001]] and various [[Hungarian Chessprogram Open]], where it won the [[MASPV 2002]]. Crux' [[Opening Book|opening book]] is edited by [[Pandix]] [[:Category:Opening Book Author|book author]] [[Csaba Szûts]] <ref>[http://titanic.nyme.hu/~wyx/crux/images.htm Crux Chess images]</ref>.
=Screenshot=
[[FILE:CruxGUI.jpg|none|border|text-bottom|link=http://titanic.nyme.hu/%7Ewyx/crux/]]
Crux Chess for Windows <ref>[http://titanic.nyme.hu/%7Ewyx/crux/g_screen.htm crux chess for windows]</ref>
=Photos & Games=
=Forum Posts=
==2000 ...==
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=30865 Crux for Test...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], February 09, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=31110 ...thanx for crux beta Testers...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], March 18, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=31147 :-) ...many results with crux 01.10...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], March 18, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=31292 ...crux 01.2R...and medium book...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], April 10, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=31399 ...crux 01.3R available...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], April 30, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=31444 ...crux 01.4R and new book available...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], May 07, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=31496 ...crux 01.5R is available...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], May 16, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=31506 ...crux 01.6R and updated largee book available...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], May 18, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=31582 Crux emits a quit unexpectedly?] by [[Dann Corbit]], [[Computer Chess Forums|Winboard Forum]], June 06, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=31993 ...crux 03.5b is available....] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], July 12, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=32217 ...crux 03.7b is available...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], August 12, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=32431 ...crux 04.0b is ready...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], September 25, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=32450 ...crux chess for windows 1.0 is available...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], September 29, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=32607 ...crux 04.2b is ready for download...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], November 02, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=32657 ...crux 04.3b is available...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], November 15, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=32730 ...Crux Chess for Windows 1.3 is available...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], December 04, 2000
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=32808 ...crux 04.5b is ready...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], December 27, 2000
==2001==
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=32936 ...Crux for Windows 1.4 is available...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], January 16, 2001
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=33274 ...new crux GUI is ready...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], February 28, 2001
* [https://www.stmintz.com/ccc/index.php?id=171247 Leiden 2001, SOS-Crux ...] by [[László Szalai|WYx]], [[CCC]], May 23, 2001
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=33859 Crux 05.0g 'Leiden' released] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], May 29, 2001
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=34401 new Crux...] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], August 23, 2001
==2002 ...==
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=36051 Crux Opening Books] by Darren, [[Computer Chess Forums|Winboard Forum]], February 07, 2002
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=18&t=46976 Crux webpage updated and fixed] by [[László Szalai|WYx]], [[Computer Chess Forums|Winboard Forum]], MarCH 20, 2004
=External Links=
* [https://en.wikipedia.org/wiki/Crux_%28disambiguation%29 Crux (disambiguation) from Wikipedia]
* [https://en.wikipedia.org/wiki/Crux Crux (constellation) from Wikipedia]
* [[:Category:Frank Zappa|Frank Zappa]] - [https://en.wikipedia.org/wiki/Don't_Eat_the_Yellow_Snow_Suite#Record_Store_Day_reissue The_Crux_of_the_Biscuit The Crux Of The Crux], [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: {{#evu:https://www.youtube.com/watch?v=VGovIdwYsUc|alignment=left|valignment=top}}
