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Created page with "'''Home * Engines * Coiled''' FILE:SlinkySpringstoFame.jpg|border|right|thumb| Slinky Springs to Fame <ref>[https://de.wikipedia.org/wiki/Emscherkunst.20..."
'''[[Main Page|Home]] * [[Engines]] * Coiled'''
[[FILE:SlinkySpringstoFame.jpg|border|right|thumb| Slinky Springs to Fame <ref>[https://de.wikipedia.org/wiki/Emscherkunst.2010#Slinky_Springs_to_Fame Slinky Springs to Fame] designed by [https://en.wikipedia.org/wiki/Tobias_Rehberger Tobias Rehberger], [https://en.wikipedia.org/wiki/Rhine%E2%80%93Herne_Canal Rhine–Herne Canal], [https://en.wikipedia.org/wiki/Gasometer_Oberhausen Gasometer Oberhausen] in the background with [http://www.gasometer.de/en/news/34-mehrsprachig/mehrsprachig-ausstellungen/264-wonders-of-nature Wonders of Nature] exhibition, [https://en.wikipedia.org/wiki/Oberhausen Oberhausen], Germany, [[:Category:Industrial Heritage Trail|The Industrial Heritage Trail]], Image by [[Gerd Isenberg]], March 12, 2017, see also [https://commons.wikimedia.org/wiki/File:Oberhausen_-_Kaisergarten_-_Slinky_30_ies.jpg Image] by [https://commons.wikimedia.org/wiki/User:Ies/L_Oberhausen Frank Vincentz], November 29, 2012, [https://commons.wikimedia.org/wiki/Category:Slinky_Springs_to_Fame Category:Slinky Springs to Fame] from [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''Coiled''',<br/>
an [[UCI]] compliant chess engine by [[Oscar Gavira]], written in [[C]], first released in 2013. Coiled '''0.6''', released in July 2018 is available as 32-bit and 64-bit executable for [[Windows]] <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68009&start=3 Re: Coiled v.0.5 Release] by [[Oscar Gavira]], [[CCC]], July 18, 2018</ref>.
=Features=
<ref>Based on [http://www.oscargavira.es/?sec=Coiled_Tecnicas Coiled - Técnicas utilizadas]</ref>
==[[Board Representation]]==
* [[8x8 Board]]
* [[Move Generation|Simple Move Generation]]
==[[Search]]==
* [[Iterative Deepening]]
* [[Aspiration Windows]]
* [[Principal Variation Search|PVS]] / [[Alpha-Beta]]
* [[Repetitions]]
* [[Transposition Table]]
* [[Quiescence Search]]
* [[Selectivity]]
** [[Extensions]]
*** [[Check Extensions]]
*** [[Passed Pawn Extensions|Passed Pawn to 7th Rank]]
** [[Pruning]]
*** [[Futility Pruning]]
*** [[Mate Distance Pruning]]
*** [[Null Move Pruning]] ([[Depth Reduction R|R]] = 3)
*** [[Static Exchange Evaluation]]
** [[Reductions]]
*** [[Late Move Reductions]]
*** [[Razoring]]
* [[Move Ordering]]
** [[Hash Move]]
** [[PV-Move]]
** [[Internal Iterative Deepening]]
** [[MVV-LVA|MVV/LVA]]
** [[Killer Heuristic]]
** [[History Heuristic]]
==[[Evaluation]]==
* [[Material]]
* [[Tapered Eval]]
* [[Piece-Square Tables]]
* [[Pawn Structure]]
** [[Pawn Hash Table]]
** [[Backward Pawn]]
** [[Isolated Pawn]]
** [[Doubled Pawn]]
** [[Passed Pawn]]
** [[Unstoppable Passer]]
** [[Hidden Passed Pawn]]
** [[Candidate Passed Pawn]]
** [[Faker]]
* [[Evaluation of Pieces#Bishop|Bishop]]
** [[Bishop Pair]]
** [[Mobility]]
** [[Trapped Pieces|Trapped Bishop]]
** [[Square Control]]
* [[Evaluation of Pieces#Knight|Knight]]
** [[Outposts]]
** [[Mobility]]
** [[Trapped Pieces|Trapped Knight]]
** [[Square Control]]
* [[Evaluation of Pieces#Rook|Rook]]
** [[Rook on Open File|On Open and Semi-Open File]]
** [[Rook on Seventh|Rook on Seventh Rank]]
** [[Mobility]]
** [[Trapped Pieces|Trapped Rook]]
** [[Square Control]]
* [[King Safety]]
** [[Castling Rights]]
** [[King Safety#PawnShield|Pawn Shield]]
** [[King Safety#PawnStorm|Pawn Storm]]
** [[King Safety#Attacking|Attacking King Zone]]
** [[King Safety#KingTropism|King Tropism]]
* [[Endgame]] [[Interior Node Recognizer]]
** [[Material#InsufficientMaterial|Insufficient Material]]
** [[KPK]]
** [[KRK]]
** [[KBNK Endgame|KBNK]]
** KQK
** KBBK
** [[Gaviota Tablebases]]
==Misc==
* [[Opening Book]] ([https://en.wikipedia.org/wiki/SQLite SQLite] format)
* [[Pondering]]
* [[UCI]]
=See also=
* [[Loop (Program)|Loop]]
=Forum Posts=
* [http://www.talkchess.com/forum/viewtopic.php?t=48965 Hispanic chess engines + Winboard Zeta Pack number 18] by [[Pedro Castro]], [[CCC]], August 14, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=53044 Coiled 0.2b] by [[Oscar Gavira]], [[CCC]], July 22, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=61406 Coiled 0.4] by [[Oscar Gavira]], [[CCC]], September 12, 2016
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68009 Coiled v.0.5 Release] by [[Oscar Gavira]], [[CCC]], July 17, 2018
: [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68009&start=3 Re: Coiled v.0.5 Release] by [[Oscar Gavira]], [[CCC]], July 18, 2018
=External Links=
==Chess Engine==
* [http://www.oscargavira.es/?sec=Coiled_Informacion Coiled - Información y descargar. Motor de ajedrez UCI] (Spanish)
* [http://www.computerchess.org.uk/ccrl/404/cgi/compare_engines.cgi?family=Coiled&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 Coiled] in [[CCRL|CCRL Blitz]]
==Misc==
* [https://www.chess.com/article/view/coiled-spring Coiled Spring] by [https://en.wikipedia.org/wiki/Pentala_Harikrishna Pentala Harikrishna], [https://en.wikipedia.org/wiki/Chess.com Chess.com], September 12, 2011
* [https://en.wiktionary.org/wiki/coiled coiled - Wiktionary]
* [https://en.wiktionary.org/wiki/coil coil - Wiktionary]
* [https://en.wikipedia.org/wiki/Coil Coil from Wikipedia]
* [https://en.wikipedia.org/wiki/Coiled_coil Coiled coil from Wikipedia]
* [https://en.wikipedia.org/wiki/Incandescent_light_bulb#Coiled_coil_filament Coiled coil filament from Wikipedia]
* [https://en.wikipedia.org/wiki/Coil_spring Coil spring from Wikipedia]
* [https://en.wikipedia.org/wiki/Electromagnetic_coil Electromagnetic coil from Wikipedia]
* [https://en.wikipedia.org/wiki/Chemical_oxygen_iodine_laser Chemical oxygen iodine laser (COIL) from Wikipedia]
* [https://en.wikipedia.org/wiki/Cajal_body Coiled bodies from Wikipedia]
* [https://www.marmosetmusic.com/artists/feverkin Feverkin] - [https://www.marmosetmusic.com/browse/18451-coiled-corner-feat-bijou Coiled Corner (feat. Bijou)], [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: {{#evu:https://www.youtube.com/watch?v=1mZiwu25_ig|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one level]]'''
[[Category:UCI]]
[[Category:X86]]
[[Category:X64]]
[[Category:PC]]
[[Category:Windows]]
[[Category:Music]]
[[Category:Industrial Heritage Trail]]
[[FILE:SlinkySpringstoFame.jpg|border|right|thumb| Slinky Springs to Fame <ref>[https://de.wikipedia.org/wiki/Emscherkunst.2010#Slinky_Springs_to_Fame Slinky Springs to Fame] designed by [https://en.wikipedia.org/wiki/Tobias_Rehberger Tobias Rehberger], [https://en.wikipedia.org/wiki/Rhine%E2%80%93Herne_Canal Rhine–Herne Canal], [https://en.wikipedia.org/wiki/Gasometer_Oberhausen Gasometer Oberhausen] in the background with [http://www.gasometer.de/en/news/34-mehrsprachig/mehrsprachig-ausstellungen/264-wonders-of-nature Wonders of Nature] exhibition, [https://en.wikipedia.org/wiki/Oberhausen Oberhausen], Germany, [[:Category:Industrial Heritage Trail|The Industrial Heritage Trail]], Image by [[Gerd Isenberg]], March 12, 2017, see also [https://commons.wikimedia.org/wiki/File:Oberhausen_-_Kaisergarten_-_Slinky_30_ies.jpg Image] by [https://commons.wikimedia.org/wiki/User:Ies/L_Oberhausen Frank Vincentz], November 29, 2012, [https://commons.wikimedia.org/wiki/Category:Slinky_Springs_to_Fame Category:Slinky Springs to Fame] from [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''Coiled''',<br/>
an [[UCI]] compliant chess engine by [[Oscar Gavira]], written in [[C]], first released in 2013. Coiled '''0.6''', released in July 2018 is available as 32-bit and 64-bit executable for [[Windows]] <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68009&start=3 Re: Coiled v.0.5 Release] by [[Oscar Gavira]], [[CCC]], July 18, 2018</ref>.
=Features=
<ref>Based on [http://www.oscargavira.es/?sec=Coiled_Tecnicas Coiled - Técnicas utilizadas]</ref>
==[[Board Representation]]==
* [[8x8 Board]]
* [[Move Generation|Simple Move Generation]]
==[[Search]]==
* [[Iterative Deepening]]
* [[Aspiration Windows]]
* [[Principal Variation Search|PVS]] / [[Alpha-Beta]]
* [[Repetitions]]
* [[Transposition Table]]
* [[Quiescence Search]]
* [[Selectivity]]
** [[Extensions]]
*** [[Check Extensions]]
*** [[Passed Pawn Extensions|Passed Pawn to 7th Rank]]
** [[Pruning]]
*** [[Futility Pruning]]
*** [[Mate Distance Pruning]]
*** [[Null Move Pruning]] ([[Depth Reduction R|R]] = 3)
*** [[Static Exchange Evaluation]]
** [[Reductions]]
*** [[Late Move Reductions]]
*** [[Razoring]]
* [[Move Ordering]]
** [[Hash Move]]
** [[PV-Move]]
** [[Internal Iterative Deepening]]
** [[MVV-LVA|MVV/LVA]]
** [[Killer Heuristic]]
** [[History Heuristic]]
==[[Evaluation]]==
* [[Material]]
* [[Tapered Eval]]
* [[Piece-Square Tables]]
* [[Pawn Structure]]
** [[Pawn Hash Table]]
** [[Backward Pawn]]
** [[Isolated Pawn]]
** [[Doubled Pawn]]
** [[Passed Pawn]]
** [[Unstoppable Passer]]
** [[Hidden Passed Pawn]]
** [[Candidate Passed Pawn]]
** [[Faker]]
* [[Evaluation of Pieces#Bishop|Bishop]]
** [[Bishop Pair]]
** [[Mobility]]
** [[Trapped Pieces|Trapped Bishop]]
** [[Square Control]]
* [[Evaluation of Pieces#Knight|Knight]]
** [[Outposts]]
** [[Mobility]]
** [[Trapped Pieces|Trapped Knight]]
** [[Square Control]]
* [[Evaluation of Pieces#Rook|Rook]]
** [[Rook on Open File|On Open and Semi-Open File]]
** [[Rook on Seventh|Rook on Seventh Rank]]
** [[Mobility]]
** [[Trapped Pieces|Trapped Rook]]
** [[Square Control]]
* [[King Safety]]
** [[Castling Rights]]
** [[King Safety#PawnShield|Pawn Shield]]
** [[King Safety#PawnStorm|Pawn Storm]]
** [[King Safety#Attacking|Attacking King Zone]]
** [[King Safety#KingTropism|King Tropism]]
* [[Endgame]] [[Interior Node Recognizer]]
** [[Material#InsufficientMaterial|Insufficient Material]]
** [[KPK]]
** [[KRK]]
** [[KBNK Endgame|KBNK]]
** KQK
** KBBK
** [[Gaviota Tablebases]]
==Misc==
* [[Opening Book]] ([https://en.wikipedia.org/wiki/SQLite SQLite] format)
* [[Pondering]]
* [[UCI]]
=See also=
* [[Loop (Program)|Loop]]
=Forum Posts=
* [http://www.talkchess.com/forum/viewtopic.php?t=48965 Hispanic chess engines + Winboard Zeta Pack number 18] by [[Pedro Castro]], [[CCC]], August 14, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=53044 Coiled 0.2b] by [[Oscar Gavira]], [[CCC]], July 22, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=61406 Coiled 0.4] by [[Oscar Gavira]], [[CCC]], September 12, 2016
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68009 Coiled v.0.5 Release] by [[Oscar Gavira]], [[CCC]], July 17, 2018
: [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68009&start=3 Re: Coiled v.0.5 Release] by [[Oscar Gavira]], [[CCC]], July 18, 2018
=External Links=
==Chess Engine==
* [http://www.oscargavira.es/?sec=Coiled_Informacion Coiled - Información y descargar. Motor de ajedrez UCI] (Spanish)
* [http://www.computerchess.org.uk/ccrl/404/cgi/compare_engines.cgi?family=Coiled&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 Coiled] in [[CCRL|CCRL Blitz]]
==Misc==
* [https://www.chess.com/article/view/coiled-spring Coiled Spring] by [https://en.wikipedia.org/wiki/Pentala_Harikrishna Pentala Harikrishna], [https://en.wikipedia.org/wiki/Chess.com Chess.com], September 12, 2011
* [https://en.wiktionary.org/wiki/coiled coiled - Wiktionary]
* [https://en.wiktionary.org/wiki/coil coil - Wiktionary]
* [https://en.wikipedia.org/wiki/Coil Coil from Wikipedia]
* [https://en.wikipedia.org/wiki/Coiled_coil Coiled coil from Wikipedia]
* [https://en.wikipedia.org/wiki/Incandescent_light_bulb#Coiled_coil_filament Coiled coil filament from Wikipedia]
* [https://en.wikipedia.org/wiki/Coil_spring Coil spring from Wikipedia]
* [https://en.wikipedia.org/wiki/Electromagnetic_coil Electromagnetic coil from Wikipedia]
* [https://en.wikipedia.org/wiki/Chemical_oxygen_iodine_laser Chemical oxygen iodine laser (COIL) from Wikipedia]
* [https://en.wikipedia.org/wiki/Cajal_body Coiled bodies from Wikipedia]
* [https://www.marmosetmusic.com/artists/feverkin Feverkin] - [https://www.marmosetmusic.com/browse/18451-coiled-corner-feat-bijou Coiled Corner (feat. Bijou)], [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: {{#evu:https://www.youtube.com/watch?v=1mZiwu25_ig|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one level]]'''
[[Category:UCI]]
[[Category:X86]]
[[Category:X64]]
[[Category:PC]]
[[Category:Windows]]
[[Category:Music]]
[[Category:Industrial Heritage Trail]]
