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Created page with "'''Home * Engines * Donna''' FILE:DonatasLapienis.jpg|border|right|thumb|link=http://lksf.lt/lt/Donatas_Lapienis| Donatas Lapienis <ref>Image from [http:..."
'''[[Main Page|Home]] * [[Engines]] * Donna'''
[[FILE:DonatasLapienis.jpg|border|right|thumb|link=http://lksf.lt/lt/Donatas_Lapienis| Donatas Lapienis <ref>Image from [http://lksf.lt/lt/Donatas_Lapienis Donatas Lapienis], [http://lksf.lt/lt/archyvas Lietuvos korespondencinių šachmatų federacija] (Lithuania correspondence chess federation)</ref> ]]
'''Donna''',<br/>
an [[UCI]] compliant, experimental [[:Category:Open Source|open source chess engine]] by [[Michael Dvorkin]], written in the [[Go (Programming Language)|Go programming language]],
freely distributable under the terms of [[Massachusetts Institute of Technology#License|MIT license]] and first released in December 2014.
=Donatas Lapienis=
Donna is dedicated to [https://en.wikipedia.org/wiki/Lithuania Lithuanian] chess grandmaster [https://lt.wikipedia.org/wiki/Donatas_Lapienis Donatas Lapienis] (April 8, 1936, [https://en.wikipedia.org/wiki/Kaunas Kaunas] - April 10, 2014, [https://en.wikipedia.org/wiki/Vilnius Vilnius] <ref>[http://www.chessfed.lt/2014/04/in-memoriam-donatas-lapienis-1936-04-08-2014-04-10/ In memoriam Donatas Lapienis (1936.04.08 – 2014.04.10) «Lietuvos šachmatų federacija]</ref> ), who was Michael Dvorkin's chess teacher.
In the mid 80s, Donatas Lapienis was highest ranked [https://en.wikipedia.org/wiki/Correspondence_chess correspondence chess] player in the world with an [https://en.wikipedia.org/wiki/Elo_rating_system Elo rating] of 2715 <ref>[https://github.com/michaeldv/donna michaeldv/donna · GitHub] Readme</ref> .
=Acknowledgments=
Michael Dvorkin thanks his friend chess grandmaster [https://en.wikipedia.org/wiki/Eduardas_Rozentalis Eduardas Rozentalis], who inspired him to write a chess engine. Donna would never have been possible without the open source authors of their respective engines <ref>[https://github.com/michaeldv/donna michaeldv/donna · GitHub] Readme</ref> :
* [[Aaron Becker]] of [[Daydreamer]]
* [[Fabien Letouzey]] of [[Senpai]]
* [[Igor Korshunov]] of [[Murka]]
* [[Jon Dart]] of [[Arasan]]
* [[Steve Maughan]] of [[Maverick]]
* [[Tom Kerrigan]] of [[TSCP]]
* [[Tord Romstad]], [[Marco Costalba]], [[Joona Kiiski]] of [[Stockfish]]
* [[Vadim Demichev]] of [[Gull]]
* [[Vladimir Medvedev]] of [[GreKo]]
=Features=
According to the Donna [https://github.com/michaeldv/donna README] file:
==[[Data|Data Structures]]==
* [[Magic Bitboards]]
* [[Transposition Table]]
* [[Material Tables|Material Imbalance Table]]
* [[Pawn Hash Table|Pawn Cache]]
==[[Search]]==
* [[Root]], [[Search Tree|Tree]], and [[Quiescence Search|Quiescence]] Search
* [[Aspiration Windows]]
* [[Iterative Deepening]]
* [[Extensions]]
* [[Alpha-Beta]]
* [[Mate Distance Pruning]]
* [[Razoring]]
* [[Futility Pruning]]
* [[Null Move Pruning]]
* [[Late Move Reductions]]
* [[Delta Pruning]]
* [[Killer Heuristic]]
* [[Material#InsufficientMaterial|Insufficient Material]]
* [[Repetitions|Repetition Detection]]
==[[Evaluation]]==
* [[Material]] with [[Material Tables|Imbalance Adjustment]]
* [[Piece-Square Tables]]
* [[King Safety]] and [[King Safety#PawnShield|Pawn Shield]] Quality
* [[Castling Rights]]
* [[Mobility]]
* [[Center Control]]
* [[Attacks|Threats]] and [[Hanging Piece|Hanging Pieces]]
* [[Passed Pawn|Passed]], [[Isolated Pawn|Isolated]], [[Doubled Pawn|Doubled]], and [[Backward Pawn|Backward Pawns]]
* [[Trapped Pieces]]
* [[Endgame|Endgame Knowledge]]
* [[Endgame Bitbases|Bitbase]] for [[KPK]]
==Misc==
* [[PolyGlot]] [[Opening Book|Opening Books]] <ref>[https://github.com/michaeldv/donna_opening_books michaeldv/donna_opening_books · GitHub]</ref>
* [https://en.wikipedia.org/wiki/Read%E2%80%93eval%E2%80%93print_loop Interactive Read–Eval–Print Loop (REPL)]
* Donna Chess Format Position Notation
=Forum Posts=
* [http://www.talkchess.com/forum/viewtopic.php?t=54596 Donna, a new UCI chess engine by Michael Dvorkin] by [[Norbert Raimund Leisner]], [[CCC]], December 09, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=56218 Donna v2.0 released] by [[Michael Dvorkin]], [[CCC]], May 03, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=57921 Donna 3.0 released] by [[Michael Dvorkin]], [[CCC]], October 12, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=58058 Donna v3.1 released] by [[Michael Dvorkin]], [[CCC]], October 26, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=58849 Donna v4.0 released] by [[Michael Dvorkin]], [[CCC]], January 08, 2016
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68745 Donna v4.1 released] by [[Michael Dvorkin]], [[CCC]], October 28, 2018
=External Links=
==Chess Engine==
* [http://donnachess.github.io/ Donna Chess Engine Downloads]
* [https://github.com/michaeldv/donna michaeldv/donna · GitHub]
* [https://github.com/michaeldv/donna_opening_books michaeldv/donna_opening_books · GitHub]
* [http://www.computerchess.org.uk/ccrl/4040/cgi/compare_engines.cgi?family=Donna&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 Donna] in [[CCRL|CCRL 40/40]]
==Misc==
* [https://en.wiktionary.org/wiki/Donna Donna - Wiktionary]
* [https://en.wiktionary.org/wiki/donna donna - Wiktionary]
* [https://en.wikipedia.org/wiki/Donna Donna from Wikipedia]
* [https://en.wikipedia.org/wiki/Donna_%28given_name%29 Donna (given name) from Wikipedia]
* [https://en.wikipedia.org/wiki/Belladonna Belladonna from Wikipedia]
* [https://en.wikipedia.org/wiki/Hurricane_Donna Hurricane Donna from Wikipedia]
* [https://it.wikipedia.org/wiki/Donna Donna - Wikipedia.it] (Italian)
* [https://it.wikipedia.org/wiki/Donna_(scacchi) Donna (scacchi) - Wikipedia.it] (Italian)
* [https://en.wikipedia.org/wiki/Charlie_Parker%27s_Savoy_and_Dial_sessions#Session_6 Charlie Parker All Stars] - [https://en.wikipedia.org/wiki/Donna_Lee Donna Lee], 1947, [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: [https://en.wikipedia.org/wiki/Charlie_Parker Charlie Parker], [[:Category:Miles Davis|Miles Davis]], [https://en.wikipedia.org/wiki/Bud_Powell Bud Powell], [https://en.wikipedia.org/wiki/Tommy_Potter Tommy Potter], [https://en.wikipedia.org/wiki/Max_Roach Max Roach]
: {{#evu:https://www.youtube.com/watch?v=02apSoxB7B4|alignment=left|valignment=top}}
* [http://kingaglyk.pl Kinga Głyk Trio] - [https://en.wikipedia.org/wiki/Donna_Lee Donna Lee], December 2016, [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: [[:Category:Kinga Głyk|Kinga Głyk]], [http://glyk.pl/ Irek Głyk], [https://www.discogs.com/de/artist/6685643-Kuba-Gwardecki Kuba Gwardecki]
: {{#evu:https://www.youtube.com/watch?v=D_onY_geaMs|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:UCI]]
[[Category:Open Source]]
[[Category:Go Proglanguage]]
[[Category:Chess Legends]]
[[Category:Chess Pieces]]
[[Category:Given Name]]
[[Category:Disaster]]
[[Category:Meteorology]]
[[Category:Kinga Głyk]]
[[Category:Miles Davis]]
[[FILE:DonatasLapienis.jpg|border|right|thumb|link=http://lksf.lt/lt/Donatas_Lapienis| Donatas Lapienis <ref>Image from [http://lksf.lt/lt/Donatas_Lapienis Donatas Lapienis], [http://lksf.lt/lt/archyvas Lietuvos korespondencinių šachmatų federacija] (Lithuania correspondence chess federation)</ref> ]]
'''Donna''',<br/>
an [[UCI]] compliant, experimental [[:Category:Open Source|open source chess engine]] by [[Michael Dvorkin]], written in the [[Go (Programming Language)|Go programming language]],
freely distributable under the terms of [[Massachusetts Institute of Technology#License|MIT license]] and first released in December 2014.
=Donatas Lapienis=
Donna is dedicated to [https://en.wikipedia.org/wiki/Lithuania Lithuanian] chess grandmaster [https://lt.wikipedia.org/wiki/Donatas_Lapienis Donatas Lapienis] (April 8, 1936, [https://en.wikipedia.org/wiki/Kaunas Kaunas] - April 10, 2014, [https://en.wikipedia.org/wiki/Vilnius Vilnius] <ref>[http://www.chessfed.lt/2014/04/in-memoriam-donatas-lapienis-1936-04-08-2014-04-10/ In memoriam Donatas Lapienis (1936.04.08 – 2014.04.10) «Lietuvos šachmatų federacija]</ref> ), who was Michael Dvorkin's chess teacher.
In the mid 80s, Donatas Lapienis was highest ranked [https://en.wikipedia.org/wiki/Correspondence_chess correspondence chess] player in the world with an [https://en.wikipedia.org/wiki/Elo_rating_system Elo rating] of 2715 <ref>[https://github.com/michaeldv/donna michaeldv/donna · GitHub] Readme</ref> .
=Acknowledgments=
Michael Dvorkin thanks his friend chess grandmaster [https://en.wikipedia.org/wiki/Eduardas_Rozentalis Eduardas Rozentalis], who inspired him to write a chess engine. Donna would never have been possible without the open source authors of their respective engines <ref>[https://github.com/michaeldv/donna michaeldv/donna · GitHub] Readme</ref> :
* [[Aaron Becker]] of [[Daydreamer]]
* [[Fabien Letouzey]] of [[Senpai]]
* [[Igor Korshunov]] of [[Murka]]
* [[Jon Dart]] of [[Arasan]]
* [[Steve Maughan]] of [[Maverick]]
* [[Tom Kerrigan]] of [[TSCP]]
* [[Tord Romstad]], [[Marco Costalba]], [[Joona Kiiski]] of [[Stockfish]]
* [[Vadim Demichev]] of [[Gull]]
* [[Vladimir Medvedev]] of [[GreKo]]
=Features=
According to the Donna [https://github.com/michaeldv/donna README] file:
==[[Data|Data Structures]]==
* [[Magic Bitboards]]
* [[Transposition Table]]
* [[Material Tables|Material Imbalance Table]]
* [[Pawn Hash Table|Pawn Cache]]
==[[Search]]==
* [[Root]], [[Search Tree|Tree]], and [[Quiescence Search|Quiescence]] Search
* [[Aspiration Windows]]
* [[Iterative Deepening]]
* [[Extensions]]
* [[Alpha-Beta]]
* [[Mate Distance Pruning]]
* [[Razoring]]
* [[Futility Pruning]]
* [[Null Move Pruning]]
* [[Late Move Reductions]]
* [[Delta Pruning]]
* [[Killer Heuristic]]
* [[Material#InsufficientMaterial|Insufficient Material]]
* [[Repetitions|Repetition Detection]]
==[[Evaluation]]==
* [[Material]] with [[Material Tables|Imbalance Adjustment]]
* [[Piece-Square Tables]]
* [[King Safety]] and [[King Safety#PawnShield|Pawn Shield]] Quality
* [[Castling Rights]]
* [[Mobility]]
* [[Center Control]]
* [[Attacks|Threats]] and [[Hanging Piece|Hanging Pieces]]
* [[Passed Pawn|Passed]], [[Isolated Pawn|Isolated]], [[Doubled Pawn|Doubled]], and [[Backward Pawn|Backward Pawns]]
* [[Trapped Pieces]]
* [[Endgame|Endgame Knowledge]]
* [[Endgame Bitbases|Bitbase]] for [[KPK]]
==Misc==
* [[PolyGlot]] [[Opening Book|Opening Books]] <ref>[https://github.com/michaeldv/donna_opening_books michaeldv/donna_opening_books · GitHub]</ref>
* [https://en.wikipedia.org/wiki/Read%E2%80%93eval%E2%80%93print_loop Interactive Read–Eval–Print Loop (REPL)]
* Donna Chess Format Position Notation
=Forum Posts=
* [http://www.talkchess.com/forum/viewtopic.php?t=54596 Donna, a new UCI chess engine by Michael Dvorkin] by [[Norbert Raimund Leisner]], [[CCC]], December 09, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=56218 Donna v2.0 released] by [[Michael Dvorkin]], [[CCC]], May 03, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=57921 Donna 3.0 released] by [[Michael Dvorkin]], [[CCC]], October 12, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=58058 Donna v3.1 released] by [[Michael Dvorkin]], [[CCC]], October 26, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=58849 Donna v4.0 released] by [[Michael Dvorkin]], [[CCC]], January 08, 2016
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68745 Donna v4.1 released] by [[Michael Dvorkin]], [[CCC]], October 28, 2018
=External Links=
==Chess Engine==
* [http://donnachess.github.io/ Donna Chess Engine Downloads]
* [https://github.com/michaeldv/donna michaeldv/donna · GitHub]
* [https://github.com/michaeldv/donna_opening_books michaeldv/donna_opening_books · GitHub]
* [http://www.computerchess.org.uk/ccrl/4040/cgi/compare_engines.cgi?family=Donna&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 Donna] in [[CCRL|CCRL 40/40]]
==Misc==
* [https://en.wiktionary.org/wiki/Donna Donna - Wiktionary]
* [https://en.wiktionary.org/wiki/donna donna - Wiktionary]
* [https://en.wikipedia.org/wiki/Donna Donna from Wikipedia]
* [https://en.wikipedia.org/wiki/Donna_%28given_name%29 Donna (given name) from Wikipedia]
* [https://en.wikipedia.org/wiki/Belladonna Belladonna from Wikipedia]
* [https://en.wikipedia.org/wiki/Hurricane_Donna Hurricane Donna from Wikipedia]
* [https://it.wikipedia.org/wiki/Donna Donna - Wikipedia.it] (Italian)
* [https://it.wikipedia.org/wiki/Donna_(scacchi) Donna (scacchi) - Wikipedia.it] (Italian)
* [https://en.wikipedia.org/wiki/Charlie_Parker%27s_Savoy_and_Dial_sessions#Session_6 Charlie Parker All Stars] - [https://en.wikipedia.org/wiki/Donna_Lee Donna Lee], 1947, [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: [https://en.wikipedia.org/wiki/Charlie_Parker Charlie Parker], [[:Category:Miles Davis|Miles Davis]], [https://en.wikipedia.org/wiki/Bud_Powell Bud Powell], [https://en.wikipedia.org/wiki/Tommy_Potter Tommy Potter], [https://en.wikipedia.org/wiki/Max_Roach Max Roach]
: {{#evu:https://www.youtube.com/watch?v=02apSoxB7B4|alignment=left|valignment=top}}
* [http://kingaglyk.pl Kinga Głyk Trio] - [https://en.wikipedia.org/wiki/Donna_Lee Donna Lee], December 2016, [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: [[:Category:Kinga Głyk|Kinga Głyk]], [http://glyk.pl/ Irek Głyk], [https://www.discogs.com/de/artist/6685643-Kuba-Gwardecki Kuba Gwardecki]
: {{#evu:https://www.youtube.com/watch?v=D_onY_geaMs|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:UCI]]
[[Category:Open Source]]
[[Category:Go Proglanguage]]
[[Category:Chess Legends]]
[[Category:Chess Pieces]]
[[Category:Given Name]]
[[Category:Disaster]]
[[Category:Meteorology]]
[[Category:Kinga Głyk]]
[[Category:Miles Davis]]
