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Created page with "'''Home * Engines * Pawny''' FILE:PawnyLogo.jpg|border|right|thumb| Pawny <ref name="Pawny">[https://web.archive.org/web/20090908151549/http://pawny.netii..."
'''[[Main Page|Home]] * [[Engines]] * Pawny'''
[[FILE:PawnyLogo.jpg|border|right|thumb| Pawny <ref name="Pawny">[https://web.archive.org/web/20090908151549/http://pawny.netii.net:80/ Pawny's Homepage] ([https://en.wikipedia.org/wiki/Wayback_Machine Wayback Machine], September 08, 2009)</ref> ]]
'''Pawny''',<br/>
an [[UCI]] compatible [[:Category:Open Source|open source chess engine]] by [[Mincho Georgiev]], written in [[C]] and licensed under the [[Free Software Foundation#GPL|GPL]], first released in September 2009.
Pawny's board was initially [[Board Representation|represented]] as
[[Vector Attacks#16x12|16x16]] [[Array|array]], filled with [[Pieces#PieceCoding|piece codes]], complemented with [[Piece-Lists|piece lists]] as array of [[Linked List|linked lists]] <ref name="Pawny"/>.
'''Pawny 1.0''', released in May 2013, is an entirely rewritten engine based on [[Bitboards|bitboards]] <ref>[https://web.archive.org/web/20190719112242/http://pawny.netii.net/version.html Pawny's Version History] ([https://en.wikipedia.org/wiki/Wayback_Machine Wayback Machine], July 19, 2019)</ref>.
=Features=
==[[Board Representation]]==
* [[Bitboards]]
* [[Magic Bitboards]]
==[[Search]]==
* [[Iterative Deepening]]
* [[Aspiration Windows]]
* [[Alpha-Beta]]
* [[Principal Variation Search]]
* [[Transposition Table]]
* [[Move Ordering]]
** [[Internal Iterative Deepening]]
** [[Static Exchange Evaluation]]
** [[Killer Heuristic]]
** [[History Heuristic]]
* [[Selectivity]]
** [[Extensions#FractionalExtensions|Fractional Extensions]]
** [[Razoring]]
** [[Null Move Pruning#AdaptiveNullMovePruning|Adaptive Null Move Pruning]]
** [[Late Move Reductions]]
** [[Futility Pruning]]
** [[Quiescence Search]]
** [[Delta Pruning]] based on [[Static Exchange Evaluation]]
==[[Evaluation]]==
* [[Tapered Eval]]
* [[Material]]
* [[Piece-Square Tables]]
* [[Mobility]]
** [[Trapped Pieces]]
** [[Rook on Open File|Rook on (Semi) Open File]]
** [[Rook on Seventh]]
** [[Center Control]]
* [[Outposts]]
* [[Pawn Structure]]
** [[Backward Pawn]]
** [[Doubled Pawn]]
** [[Isolated Pawn]]
** [[Connected Pawns]]
** [[Passed Pawn]]
* [[King Safety]]
** [[King Safety#Attacking|Attacking King Zone]]
** [[King Safety#PawnShield|Pawn Shelter]]
** [[King Safety#SquareControl|Square Control]]
==Misc==
* [[Gaviota Tablebases]]
=Forum Posts=
==2009==
* [http://www.talkchess.com/forum/viewtopic.php?t=29641 New open source engine called "Pawny"] by [[Graham Banks]], [[CCC]], September 03, 2009
* [http://www.talkchess.com/forum/viewtopic.php?t=29763 Pawny - new version (0.11)] by [[Mincho Georgiev]], [[CCC]], September 15, 2009
==2010 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=31407 Pawny 0.15 is out] by [[Mincho Georgiev]], [[CCC]], January 01, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=32596 Pawny 0.1.6] by [[Mincho Georgiev]], [[CCC]], February 13, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=33004 Pawny - Updated] by [[Mincho Georgiev]], [[CCC]], March 02, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35237 Pawny 0.2] by [[Mincho Georgiev]], [[CCC]], July 01, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=37909 Pawny 0.2.1] by [[Mincho Georgiev]], [[CCC]], February 01, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=41196 Pawny updated] by [[Mincho Georgiev]], [[CCC]], November 24, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=48163 New Pawny] by [[Gabor Szots]], [[CCC]], May 31, 2013
==2015 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=56668 Pawny 1.1] by [[Graham Banks]], [[CCC]], June 14, 2015
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=60531 Android Request] by [[Mincho Georgiev]], [[CCC]], June 19, 2016
=External Links=
* [https://web.archive.org/web/20090908151549/http://pawny.netii.net:80/ Pawny's Homepage] ([https://en.wikipedia.org/wiki/Wayback_Machine Wayback Machine], September 08, 2009)
* [https://web.archive.org/web/20190805192504/http://pawny.netii.net/ Pawny's Homepage] ([https://en.wikipedia.org/wiki/Wayback_Machine Wayback Machine], August 05, 2019)
: [https://web.archive.org/web/20190719112242/http://pawny.netii.net/version.html Pawny's Version History] ([https://en.wikipedia.org/wiki/Wayback_Machine Wayback Machine], July 19, 2019)
* [http://kirr.homeunix.org/chess/engines/Jim%20Ablett/PAWNY/ Index of /chess/engines/Jim Ablett/PAWNY] by [[Jim Ablett]], hosted by [[Kirill Kryukov]]
* [http://julien.marcel.free.fr/macchess/Chess_on_Mac/Engines.html Mac Chess Engines Repository] hosted by [[Julien Marcel]]
* [https://ccrl.chessdom.com/ccrl/4040/cgi/compare_engines.cgi?family=Pawny&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 Pawny] in [[CCRL|CCRL 40/15]]
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:Open Source]]
[[Category:GPL]]
[[Category:UCI]]
[[Category:PC]]
[[Category:Windows]]
[[Category:Linux]]
[[Category:Mac]]
[[Category:Android]]
[[Category:X86]]
[[Category:X64]]
[[Category:Chess Pieces]]
[[FILE:PawnyLogo.jpg|border|right|thumb| Pawny <ref name="Pawny">[https://web.archive.org/web/20090908151549/http://pawny.netii.net:80/ Pawny's Homepage] ([https://en.wikipedia.org/wiki/Wayback_Machine Wayback Machine], September 08, 2009)</ref> ]]
'''Pawny''',<br/>
an [[UCI]] compatible [[:Category:Open Source|open source chess engine]] by [[Mincho Georgiev]], written in [[C]] and licensed under the [[Free Software Foundation#GPL|GPL]], first released in September 2009.
Pawny's board was initially [[Board Representation|represented]] as
[[Vector Attacks#16x12|16x16]] [[Array|array]], filled with [[Pieces#PieceCoding|piece codes]], complemented with [[Piece-Lists|piece lists]] as array of [[Linked List|linked lists]] <ref name="Pawny"/>.
'''Pawny 1.0''', released in May 2013, is an entirely rewritten engine based on [[Bitboards|bitboards]] <ref>[https://web.archive.org/web/20190719112242/http://pawny.netii.net/version.html Pawny's Version History] ([https://en.wikipedia.org/wiki/Wayback_Machine Wayback Machine], July 19, 2019)</ref>.
=Features=
==[[Board Representation]]==
* [[Bitboards]]
* [[Magic Bitboards]]
==[[Search]]==
* [[Iterative Deepening]]
* [[Aspiration Windows]]
* [[Alpha-Beta]]
* [[Principal Variation Search]]
* [[Transposition Table]]
* [[Move Ordering]]
** [[Internal Iterative Deepening]]
** [[Static Exchange Evaluation]]
** [[Killer Heuristic]]
** [[History Heuristic]]
* [[Selectivity]]
** [[Extensions#FractionalExtensions|Fractional Extensions]]
** [[Razoring]]
** [[Null Move Pruning#AdaptiveNullMovePruning|Adaptive Null Move Pruning]]
** [[Late Move Reductions]]
** [[Futility Pruning]]
** [[Quiescence Search]]
** [[Delta Pruning]] based on [[Static Exchange Evaluation]]
==[[Evaluation]]==
* [[Tapered Eval]]
* [[Material]]
* [[Piece-Square Tables]]
* [[Mobility]]
** [[Trapped Pieces]]
** [[Rook on Open File|Rook on (Semi) Open File]]
** [[Rook on Seventh]]
** [[Center Control]]
* [[Outposts]]
* [[Pawn Structure]]
** [[Backward Pawn]]
** [[Doubled Pawn]]
** [[Isolated Pawn]]
** [[Connected Pawns]]
** [[Passed Pawn]]
* [[King Safety]]
** [[King Safety#Attacking|Attacking King Zone]]
** [[King Safety#PawnShield|Pawn Shelter]]
** [[King Safety#SquareControl|Square Control]]
==Misc==
* [[Gaviota Tablebases]]
=Forum Posts=
==2009==
* [http://www.talkchess.com/forum/viewtopic.php?t=29641 New open source engine called "Pawny"] by [[Graham Banks]], [[CCC]], September 03, 2009
* [http://www.talkchess.com/forum/viewtopic.php?t=29763 Pawny - new version (0.11)] by [[Mincho Georgiev]], [[CCC]], September 15, 2009
==2010 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=31407 Pawny 0.15 is out] by [[Mincho Georgiev]], [[CCC]], January 01, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=32596 Pawny 0.1.6] by [[Mincho Georgiev]], [[CCC]], February 13, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=33004 Pawny - Updated] by [[Mincho Georgiev]], [[CCC]], March 02, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=35237 Pawny 0.2] by [[Mincho Georgiev]], [[CCC]], July 01, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=37909 Pawny 0.2.1] by [[Mincho Georgiev]], [[CCC]], February 01, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=41196 Pawny updated] by [[Mincho Georgiev]], [[CCC]], November 24, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=48163 New Pawny] by [[Gabor Szots]], [[CCC]], May 31, 2013
==2015 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=56668 Pawny 1.1] by [[Graham Banks]], [[CCC]], June 14, 2015
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=60531 Android Request] by [[Mincho Georgiev]], [[CCC]], June 19, 2016
=External Links=
* [https://web.archive.org/web/20090908151549/http://pawny.netii.net:80/ Pawny's Homepage] ([https://en.wikipedia.org/wiki/Wayback_Machine Wayback Machine], September 08, 2009)
* [https://web.archive.org/web/20190805192504/http://pawny.netii.net/ Pawny's Homepage] ([https://en.wikipedia.org/wiki/Wayback_Machine Wayback Machine], August 05, 2019)
: [https://web.archive.org/web/20190719112242/http://pawny.netii.net/version.html Pawny's Version History] ([https://en.wikipedia.org/wiki/Wayback_Machine Wayback Machine], July 19, 2019)
* [http://kirr.homeunix.org/chess/engines/Jim%20Ablett/PAWNY/ Index of /chess/engines/Jim Ablett/PAWNY] by [[Jim Ablett]], hosted by [[Kirill Kryukov]]
* [http://julien.marcel.free.fr/macchess/Chess_on_Mac/Engines.html Mac Chess Engines Repository] hosted by [[Julien Marcel]]
* [https://ccrl.chessdom.com/ccrl/4040/cgi/compare_engines.cgi?family=Pawny&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 Pawny] in [[CCRL|CCRL 40/15]]
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:Open Source]]
[[Category:GPL]]
[[Category:UCI]]
[[Category:PC]]
[[Category:Windows]]
[[Category:Linux]]
[[Category:Mac]]
[[Category:Android]]
[[Category:X86]]
[[Category:X64]]
[[Category:Chess Pieces]]
