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Created page with "'''Home * Engines * Simplex''' FILE:Simplexes.jpg|border|right|thumb| Simplexes <ref>The four simplexes which can be fully represented in 3D. Created in [..."
'''[[Main Page|Home]] * [[Engines]] * Simplex'''
[[FILE:Simplexes.jpg|border|right|thumb| Simplexes <ref>The four simplexes which can be fully represented in 3D. Created in [https://en.wikipedia.org/wiki/Blender_(software) Blender] by Hjhornbeck, April 08, 2017, [https://en.wikipedia.org/wiki/Simplex Simplex from Wikipedia], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''Simplex''',<br/>
an [[UCI]] compliant [[:Category:Open Source|open source chess engine]] by [[Antonio Torrecillas]], written in [[Cpp|C++]] and licensed under the [[Free Software Foundation#GPL|GNU General Public License]].
Simplex was first published with sources in 2010, while its development already started at least in 2007 with the intermediate name DarkSimplex due to experiments with the published description of [[DarkThought]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=33637 Simplex Updated] by [[Antonio Torrecillas]], [[CCC]], April 05, 2010</ref> <ref>[[Ernst A. Heinz]] ('''1997'''). ''[http://people.csail.mit.edu/heinz/dt/node2.html How DarkThought Plays Chess].'' [[ICGA Journal#20_3|ICCA Journal, Vol. 20, No. 3]]</ref>.
=Features=
==[[Board Representation]]==
* [[Bitboards]]
* [[Kindergarten Bitboards]]
==[[Search]]==
* [[Iterative Deepening]] with [[Aspiration Windows]]
* [[Alpha-Beta]] [[Principal Variation Search]]
* [[Transposition Table]]
* [[Quiescence Search]]
* [[Null Move Pruning]]
* [[Late Move Reductions]]
* [[Mate Distance Pruning]]
* [[Futility Pruning]]
* [[Internal Iterative Deepening]]
* [[Killer Heuristic]]
* [[History Heuristic]]
==[[Evaluation]]==
* [[Material]]
* [[Piece-Square Tables]]
* [[Tapered Eval]]
* [[Lazy Evaluation]]
* [[Center Control]]
* [[Mobility]]
* [[Pawn Structure]]
: [[Backward Pawn]]
: [[Passed Pawn]]
: [[Candidate Passed Pawn]]
* [[Evaluation of Pieces]]
* [[King Safety]]
=See also=
* [[Rocinante]]
* [[Connectivity#SimplexAndComplex|Simplex and Complex]] in [[Connectivity]]
=Forum Posts=
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=2&t=50577 Simplex chess engine] by [[Olivier Deville]], [[Computer Chess Forms|Winboard Forum]], November 18, 2009
* [http://www.talkchess.com/forum/viewtopic.php?t=33637 Simplex Updated] by [[Antonio Torrecillas]], [[CCC]], April 05, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=36185 Simplex 0.9.6 released] by [[Antonio Torrecillas]], [[CCC]], September 26, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=37559 Simplex 0.9.7 release] by [[Antonio Torrecillas]], [[CCC]], January 10, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=41153 Simplex 0.9.8] by [[Antonio Torrecillas]], [[CCC]], November 20, 2011
=External Links=
==Chess Engine==
* [https://sites.google.com/site/barajandotrebejos/ Barajando Trebejos] (Download [[Rocinante]] and [[Simplex]])
* [http://kirr.homeunix.org/chess/engines/Jim%20Ablett/SIMPLEX/ Index of /chess/engines/Jim Ablett/SIMPLEX] by [[Jim Ablett]], hosted by [[Kirill Kryukov]]
* [http://www.computerchess.org.uk/ccrl/404/cgi/compare_engines.cgi?family=Simplex&print=Rating+list&print=Results+table&print=LOS+table&print=Ponder+hit+table&print=Eval+difference+table&print=Comopp+gamenum+table&print=Overlap+table&print=Score+with+common+opponents Simplex] ín [[CCRL|CCRL 40/4]]
==Misc==
* [https://en.wikipedia.org/wiki/Simplex Simplex from Wikipedia]
* [https://en.wikipedia.org/wiki/Simplex_(disambiguation) Simplex (disambiguation) from Wikipedia]
* [https://en.wikipedia.org/wiki/Pascal's_simplex Pascal's simplex from Wikipedia]
* [https://en.wikipedia.org/wiki/Simplex_algorithm Simplex algorithm from Wikipedia]
* [https://en.wikipedia.org/wiki/Simplex_graph Simplex graph from Wikipedia]
* [http://www.jazzitalia.net/Artisti/gaetanovalli.asp Gaetano Valli] - Simplex, [http://www.jazzclubgajo.com/ Jazz Club Gaio], [https://en.wikipedia.org/wiki/Ljubljana Ljubljana] 2009, [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: {{#evu:https://www.youtube.com/watch?v=1-36nswTvjo|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:Open Source]]
[[Category:GPL]]
[[Category:UCI]]
[[Category:Music]]
[[FILE:Simplexes.jpg|border|right|thumb| Simplexes <ref>The four simplexes which can be fully represented in 3D. Created in [https://en.wikipedia.org/wiki/Blender_(software) Blender] by Hjhornbeck, April 08, 2017, [https://en.wikipedia.org/wiki/Simplex Simplex from Wikipedia], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''Simplex''',<br/>
an [[UCI]] compliant [[:Category:Open Source|open source chess engine]] by [[Antonio Torrecillas]], written in [[Cpp|C++]] and licensed under the [[Free Software Foundation#GPL|GNU General Public License]].
Simplex was first published with sources in 2010, while its development already started at least in 2007 with the intermediate name DarkSimplex due to experiments with the published description of [[DarkThought]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=33637 Simplex Updated] by [[Antonio Torrecillas]], [[CCC]], April 05, 2010</ref> <ref>[[Ernst A. Heinz]] ('''1997'''). ''[http://people.csail.mit.edu/heinz/dt/node2.html How DarkThought Plays Chess].'' [[ICGA Journal#20_3|ICCA Journal, Vol. 20, No. 3]]</ref>.
=Features=
==[[Board Representation]]==
* [[Bitboards]]
* [[Kindergarten Bitboards]]
==[[Search]]==
* [[Iterative Deepening]] with [[Aspiration Windows]]
* [[Alpha-Beta]] [[Principal Variation Search]]
* [[Transposition Table]]
* [[Quiescence Search]]
* [[Null Move Pruning]]
* [[Late Move Reductions]]
* [[Mate Distance Pruning]]
* [[Futility Pruning]]
* [[Internal Iterative Deepening]]
* [[Killer Heuristic]]
* [[History Heuristic]]
==[[Evaluation]]==
* [[Material]]
* [[Piece-Square Tables]]
* [[Tapered Eval]]
* [[Lazy Evaluation]]
* [[Center Control]]
* [[Mobility]]
* [[Pawn Structure]]
: [[Backward Pawn]]
: [[Passed Pawn]]
: [[Candidate Passed Pawn]]
* [[Evaluation of Pieces]]
* [[King Safety]]
=See also=
* [[Rocinante]]
* [[Connectivity#SimplexAndComplex|Simplex and Complex]] in [[Connectivity]]
=Forum Posts=
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=2&t=50577 Simplex chess engine] by [[Olivier Deville]], [[Computer Chess Forms|Winboard Forum]], November 18, 2009
* [http://www.talkchess.com/forum/viewtopic.php?t=33637 Simplex Updated] by [[Antonio Torrecillas]], [[CCC]], April 05, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=36185 Simplex 0.9.6 released] by [[Antonio Torrecillas]], [[CCC]], September 26, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=37559 Simplex 0.9.7 release] by [[Antonio Torrecillas]], [[CCC]], January 10, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=41153 Simplex 0.9.8] by [[Antonio Torrecillas]], [[CCC]], November 20, 2011
=External Links=
==Chess Engine==
* [https://sites.google.com/site/barajandotrebejos/ Barajando Trebejos] (Download [[Rocinante]] and [[Simplex]])
* [http://kirr.homeunix.org/chess/engines/Jim%20Ablett/SIMPLEX/ Index of /chess/engines/Jim Ablett/SIMPLEX] by [[Jim Ablett]], hosted by [[Kirill Kryukov]]
* [http://www.computerchess.org.uk/ccrl/404/cgi/compare_engines.cgi?family=Simplex&print=Rating+list&print=Results+table&print=LOS+table&print=Ponder+hit+table&print=Eval+difference+table&print=Comopp+gamenum+table&print=Overlap+table&print=Score+with+common+opponents Simplex] ín [[CCRL|CCRL 40/4]]
==Misc==
* [https://en.wikipedia.org/wiki/Simplex Simplex from Wikipedia]
* [https://en.wikipedia.org/wiki/Simplex_(disambiguation) Simplex (disambiguation) from Wikipedia]
* [https://en.wikipedia.org/wiki/Pascal's_simplex Pascal's simplex from Wikipedia]
* [https://en.wikipedia.org/wiki/Simplex_algorithm Simplex algorithm from Wikipedia]
* [https://en.wikipedia.org/wiki/Simplex_graph Simplex graph from Wikipedia]
* [http://www.jazzitalia.net/Artisti/gaetanovalli.asp Gaetano Valli] - Simplex, [http://www.jazzclubgajo.com/ Jazz Club Gaio], [https://en.wikipedia.org/wiki/Ljubljana Ljubljana] 2009, [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: {{#evu:https://www.youtube.com/watch?v=1-36nswTvjo|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:Open Source]]
[[Category:GPL]]
[[Category:UCI]]
[[Category:Music]]
