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Created page with "'''Home * Engines * Chronos''' FILE:Chronos Statue Detail.JPG|border|right|thumb| Chronos <ref>Head of Sculpture of [https://en.wikipedia.org/wiki/Chrono..."
'''[[Main Page|Home]] * [[Engines]] * Chronos'''
[[FILE:Chronos Statue Detail.JPG|border|right|thumb| Chronos <ref>Head of Sculpture of [https://en.wikipedia.org/wiki/Chronos Chronos] in the Knights' Hall of [https://en.wikipedia.org/wiki/Royal_Castle,_Warsaw Royal Castle, Warsaw], [https://commons.wikimedia.org/wiki/File:Chronos_Statue_Detail.JPG Image] by [https://commons.wikimedia.org/wiki/User:Scotch_Mist Scotch Mist], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''Chronos''',<br/>
a [[WinBoard]] compatible chess engine developed by [[Guillermo Filia]], written in [[C]] or [[Cpp|C++]] <ref>[http://www.open-aurec.com/wbforum/viewtopic.php?f=4&t=50192 Engines written in which programming language?] by [[Andreas Herrmann]], [[Computer Chess Forums|Winboard Forum]], June 01, 2009</ref>.
The project started in 2008 based on Guillermo Filia's earlier chess engine named '''GFC''', and initially incorporated [[NagaSkaki|NagaSkaki's]] [[Shifted Bitboards]] approach to generated [[Sliding Piece Attacks|sliding piece attacks]] <ref>[https://mayothi.com/nagaskakichess6.html How NagaSkaki plays chess - Move generation]</ref>,
later replaced by [[Rotated Bitboards]] following [[Robert Hyatt|Robert Hyatt's]] tutorial <ref> [http://www.craftychess.com/hyatt/bitmaps.html Rotated bitmaps, a new twist on an old idea] by [[Robert Hyatt]]</ref> <ref name="History"/>.
=Selected Features=
<ref name="History">[https://sites.google.com/site/chronosce/history-2 Chronos Chess Engine - History]</ref>
==[[Board Representation]]==
* [[Bitboards]]
* [[Rotated Bitboards]]
==[[Search]]==
* [[Iterative Deepening]]
* [[Aspiration Windows]]
* [[Alpha-Beta]]
* [[Principal Variation Search]]
* [[Transposition Table]]
* [[Move Ordering]]
** [[History Heuristic]]
** [[MVV-LVA|MVV/LVA]]
** [[Static Exchange Evaluation|SEE]]
* [[Selectivity]]
** [[Extensions#FractionalExtensions|Fractional Ply Extensions]]
** [[One Reply Extensions]]
** [[Null Move Pruning]]
** [[Futility Pruning]]
** [[History Leaf Pruning]]
** [[Late Move Reductions]]
** [[Razoring]]
** [[Quiescence Search]]
** [[Delta Pruning]]
==[[Evaluation]]==
* [[Tapered Eval]]
* [[Lazy Evaluation]]
* [[Material]]
* [[Material Hash Table]]
* [[Piece-Square Tables]]
* [[Mobility]]
* [[Pawn Structure]]
** [[Pawn Hash Table]]
** [[Passed Pawn]]
** [[Unstoppable Passer]]
** [[Candidate Passed Pawn]]
** [[Blockade of Stop#Passed Pawns|Blocked Passed Pawn]]
* [[King Safety]]
** [[King Safety#KingTropism|King Piece Tropism]]
** [[King Safety#SquareControl|Square Control]]
** [[King Safety#PawnShield|Pawn Shelter]]
** [[King Safety#PawnStorm|Pawn Storm]]
* [[Endgame]]
=Forum Posts=
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=2&t=49907 New/Updated Engines: 2009/01/24] by [[Ron Murawski]], [[Computer Chess Forums|Winboard Forum]], January 25, 2009
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=49286 And a proper WB2UCI file for Chronos...] by [[Dr.Wael Deeb]], [[CCC]], September 09, 2013 » [[Wb2UCI]]
=External Links=
==Chess Engine==
* [https://sites.google.com/site/chronosce/Home Chronos Chess Engine]
* [https://ccrl.chessdom.com/ccrl/4040/cgi/compare_engines.cgi?family=Chronos&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 Chronos] in [[CCRL|CCRL 40/15]]
==Misc==
* [https://en.wikipedia.org/wiki/Chronos Chronos from Wikipedia]
* [https://en.wikipedia.org/wiki/Cronus Cronus from Wikipedia]
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:WinBoard]]
[[Category:Windows]]
[[Category:PC]]
[[Category:Mythology]]
[[FILE:Chronos Statue Detail.JPG|border|right|thumb| Chronos <ref>Head of Sculpture of [https://en.wikipedia.org/wiki/Chronos Chronos] in the Knights' Hall of [https://en.wikipedia.org/wiki/Royal_Castle,_Warsaw Royal Castle, Warsaw], [https://commons.wikimedia.org/wiki/File:Chronos_Statue_Detail.JPG Image] by [https://commons.wikimedia.org/wiki/User:Scotch_Mist Scotch Mist], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''Chronos''',<br/>
a [[WinBoard]] compatible chess engine developed by [[Guillermo Filia]], written in [[C]] or [[Cpp|C++]] <ref>[http://www.open-aurec.com/wbforum/viewtopic.php?f=4&t=50192 Engines written in which programming language?] by [[Andreas Herrmann]], [[Computer Chess Forums|Winboard Forum]], June 01, 2009</ref>.
The project started in 2008 based on Guillermo Filia's earlier chess engine named '''GFC''', and initially incorporated [[NagaSkaki|NagaSkaki's]] [[Shifted Bitboards]] approach to generated [[Sliding Piece Attacks|sliding piece attacks]] <ref>[https://mayothi.com/nagaskakichess6.html How NagaSkaki plays chess - Move generation]</ref>,
later replaced by [[Rotated Bitboards]] following [[Robert Hyatt|Robert Hyatt's]] tutorial <ref> [http://www.craftychess.com/hyatt/bitmaps.html Rotated bitmaps, a new twist on an old idea] by [[Robert Hyatt]]</ref> <ref name="History"/>.
=Selected Features=
<ref name="History">[https://sites.google.com/site/chronosce/history-2 Chronos Chess Engine - History]</ref>
==[[Board Representation]]==
* [[Bitboards]]
* [[Rotated Bitboards]]
==[[Search]]==
* [[Iterative Deepening]]
* [[Aspiration Windows]]
* [[Alpha-Beta]]
* [[Principal Variation Search]]
* [[Transposition Table]]
* [[Move Ordering]]
** [[History Heuristic]]
** [[MVV-LVA|MVV/LVA]]
** [[Static Exchange Evaluation|SEE]]
* [[Selectivity]]
** [[Extensions#FractionalExtensions|Fractional Ply Extensions]]
** [[One Reply Extensions]]
** [[Null Move Pruning]]
** [[Futility Pruning]]
** [[History Leaf Pruning]]
** [[Late Move Reductions]]
** [[Razoring]]
** [[Quiescence Search]]
** [[Delta Pruning]]
==[[Evaluation]]==
* [[Tapered Eval]]
* [[Lazy Evaluation]]
* [[Material]]
* [[Material Hash Table]]
* [[Piece-Square Tables]]
* [[Mobility]]
* [[Pawn Structure]]
** [[Pawn Hash Table]]
** [[Passed Pawn]]
** [[Unstoppable Passer]]
** [[Candidate Passed Pawn]]
** [[Blockade of Stop#Passed Pawns|Blocked Passed Pawn]]
* [[King Safety]]
** [[King Safety#KingTropism|King Piece Tropism]]
** [[King Safety#SquareControl|Square Control]]
** [[King Safety#PawnShield|Pawn Shelter]]
** [[King Safety#PawnStorm|Pawn Storm]]
* [[Endgame]]
=Forum Posts=
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=2&t=49907 New/Updated Engines: 2009/01/24] by [[Ron Murawski]], [[Computer Chess Forums|Winboard Forum]], January 25, 2009
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=49286 And a proper WB2UCI file for Chronos...] by [[Dr.Wael Deeb]], [[CCC]], September 09, 2013 » [[Wb2UCI]]
=External Links=
==Chess Engine==
* [https://sites.google.com/site/chronosce/Home Chronos Chess Engine]
* [https://ccrl.chessdom.com/ccrl/4040/cgi/compare_engines.cgi?family=Chronos&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 Chronos] in [[CCRL|CCRL 40/15]]
==Misc==
* [https://en.wikipedia.org/wiki/Chronos Chronos from Wikipedia]
* [https://en.wikipedia.org/wiki/Cronus Cronus from Wikipedia]
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:WinBoard]]
[[Category:Windows]]
[[Category:PC]]
[[Category:Mythology]]
