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Created page with "'''Home * Engines * Stash''' FILE:Outside Omphalos at Delphi.jpg|border|right|thumb| The [https://en.wikipedia.org/wiki/Omphalos_of_Delphi Omphalos stone..."
'''[[Main Page|Home]] * [[Engines]] * Stash'''
[[FILE:Outside Omphalos at Delphi.jpg|border|right|thumb| The [https://en.wikipedia.org/wiki/Omphalos_of_Delphi Omphalos stone] <ref>The [https://en.wikipedia.org/wiki/Omphalos_of_Delphi omphalos stone] displayed outside at [https://en.wikipedia.org/wiki/Delphi Delphi], [https://en.wikipedia.org/wiki/Greece Greece], lower piece is a stash, [https://commons.wikimedia.org/wiki/File:Outside_Omphalos_at_Delphi.jpg Image] by [https://commons.wikimedia.org/wiki/User:Patar_knight Patar knight], March 21, 2009, [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''Stash''', (Stash-bot)<br/>
an [[UCI]] compliant [[:Category:Open Source|open source chess engine]] by [[Morgan Houppin]], written in [[C]], licensed under the [[Free Software Foundation#GPL|GPL v3]] and first released on [https://en.wikipedia.org/wiki/GitLab GitLab] in February 2020 <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=73092 New engine: Stash] by [[Morgan Houppin]], [[CCC]], February 14, 2020</ref>.
=Features=
<ref>Features based on [https://gitlab.com/mhouppin/stash-bot/-/releases#v22.0 Releases · Morgan Houppin / stash-bot · GitLab v22.0]</ref>
==[[Board Representation]]==
* [[Bitboards]]
* [[Magic Bitboards]]
* [[BMI2#PEXTBitboards|PEXT Bitboards]]
==[[Search]]==
* [[Iterative Deepening]]
* [[Aspiration Windows]]
* [[Lazy SMP]]
* [[Principal Variation Search]]
* [[Transposition Table]]
** [[Shared Hash Table]]
** [[Zobrist Hashing]]
* [[Move Ordering]]
** [[Hash Move]]
** [[Promotions]]
** [[MVV-LVA|MVV/LVA]]
** [[Killer Heuristic]]
** [[History Heuristic]]
* [[Selectivity]]
** [[Razoring]]
** [[Futility Pruning]]
** [[Null Move Pruning]]
** [[Null Move Pruning#ZugzwangVerification|Zugzwang Verification]]
** [[Late Move Reductions]]
** [[Mate Distance Pruning]]
** [[Quiescence Search]]
==[[Evaluation]]==
* [[Material]]
** [[Bishop Pair]]
** [[Draw Evaluation]]
* [[Mobility]]
** [[Rook on Open File|Rooks on (Semi) Open Files]]
* [[Pawn Structure]]
** [[Pawn Hash Table]]
** [[Backward Pawn]]
** [[Doubled Pawn]]
** [[Isolated Pawn]]
** [[Passed Pawn]]
* [[King Safety]]
** [[King Safety#Attacking|Attacking King Zone]]
** [[Castling Rights]]
=Forum Posts=
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=73092 New engine: Stash] by [[Morgan Houppin]], [[CCC]], February 14, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=69693&start=27 Re: Linux friendly engines at all levels] by [[Morgan Houppin]], [[CCC]], October 11, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=75371 INTERESTING Engines with Unique Styles (Unlike SF)] by [[Brendan J. Norman]], [[CCC]], October 11, 2020
=External Links=
==Chess Engine==
* [https://gitlab.com/mhouppin/stash-bot Morgan Houppin / stash-bot · GitLab]
* [http://ccrl.chessdom.com/ccrl/404/cgi/compare_engines.cgi?family=Stash&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 Stash CCRL Blitz]
==Misc==
* [https://en.wiktionary.org/wiki/stash stash - Wiktionary]
* [https://en.wikipedia.org/wiki/Stash Stash from Wikipedia]
* [[:Category:Phish|Phish]] - [https://en.wikipedia.org/wiki/Stash_(Phish_album) Stash], [https://en.wikipedia.org/wiki/Merriweather_Post_Pavilion Merriweather Post Pavilion] in [https://en.wikipedia.org/wiki/Columbia,_Maryland Columbia, MD], July 14, 2013, [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: {{#evu:https://www.youtube.com/watch?v=79NAC9vNThU|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one level]]'''
[[Category:Open Source]]
[[Category:GPL]]
[[Category:UCI]]
[[Category:PC]]
[[Category:X86]]
[[Category:X64]]
[[Category:Linux]]
[[Category:Windows]]
[[Category:Phish]]
[[FILE:Outside Omphalos at Delphi.jpg|border|right|thumb| The [https://en.wikipedia.org/wiki/Omphalos_of_Delphi Omphalos stone] <ref>The [https://en.wikipedia.org/wiki/Omphalos_of_Delphi omphalos stone] displayed outside at [https://en.wikipedia.org/wiki/Delphi Delphi], [https://en.wikipedia.org/wiki/Greece Greece], lower piece is a stash, [https://commons.wikimedia.org/wiki/File:Outside_Omphalos_at_Delphi.jpg Image] by [https://commons.wikimedia.org/wiki/User:Patar_knight Patar knight], March 21, 2009, [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''Stash''', (Stash-bot)<br/>
an [[UCI]] compliant [[:Category:Open Source|open source chess engine]] by [[Morgan Houppin]], written in [[C]], licensed under the [[Free Software Foundation#GPL|GPL v3]] and first released on [https://en.wikipedia.org/wiki/GitLab GitLab] in February 2020 <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=73092 New engine: Stash] by [[Morgan Houppin]], [[CCC]], February 14, 2020</ref>.
=Features=
<ref>Features based on [https://gitlab.com/mhouppin/stash-bot/-/releases#v22.0 Releases · Morgan Houppin / stash-bot · GitLab v22.0]</ref>
==[[Board Representation]]==
* [[Bitboards]]
* [[Magic Bitboards]]
* [[BMI2#PEXTBitboards|PEXT Bitboards]]
==[[Search]]==
* [[Iterative Deepening]]
* [[Aspiration Windows]]
* [[Lazy SMP]]
* [[Principal Variation Search]]
* [[Transposition Table]]
** [[Shared Hash Table]]
** [[Zobrist Hashing]]
* [[Move Ordering]]
** [[Hash Move]]
** [[Promotions]]
** [[MVV-LVA|MVV/LVA]]
** [[Killer Heuristic]]
** [[History Heuristic]]
* [[Selectivity]]
** [[Razoring]]
** [[Futility Pruning]]
** [[Null Move Pruning]]
** [[Null Move Pruning#ZugzwangVerification|Zugzwang Verification]]
** [[Late Move Reductions]]
** [[Mate Distance Pruning]]
** [[Quiescence Search]]
==[[Evaluation]]==
* [[Material]]
** [[Bishop Pair]]
** [[Draw Evaluation]]
* [[Mobility]]
** [[Rook on Open File|Rooks on (Semi) Open Files]]
* [[Pawn Structure]]
** [[Pawn Hash Table]]
** [[Backward Pawn]]
** [[Doubled Pawn]]
** [[Isolated Pawn]]
** [[Passed Pawn]]
* [[King Safety]]
** [[King Safety#Attacking|Attacking King Zone]]
** [[Castling Rights]]
=Forum Posts=
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=73092 New engine: Stash] by [[Morgan Houppin]], [[CCC]], February 14, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=69693&start=27 Re: Linux friendly engines at all levels] by [[Morgan Houppin]], [[CCC]], October 11, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=75371 INTERESTING Engines with Unique Styles (Unlike SF)] by [[Brendan J. Norman]], [[CCC]], October 11, 2020
=External Links=
==Chess Engine==
* [https://gitlab.com/mhouppin/stash-bot Morgan Houppin / stash-bot · GitLab]
* [http://ccrl.chessdom.com/ccrl/404/cgi/compare_engines.cgi?family=Stash&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 Stash CCRL Blitz]
==Misc==
* [https://en.wiktionary.org/wiki/stash stash - Wiktionary]
* [https://en.wikipedia.org/wiki/Stash Stash from Wikipedia]
* [[:Category:Phish|Phish]] - [https://en.wikipedia.org/wiki/Stash_(Phish_album) Stash], [https://en.wikipedia.org/wiki/Merriweather_Post_Pavilion Merriweather Post Pavilion] in [https://en.wikipedia.org/wiki/Columbia,_Maryland Columbia, MD], July 14, 2013, [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: {{#evu:https://www.youtube.com/watch?v=79NAC9vNThU|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one level]]'''
[[Category:Open Source]]
[[Category:GPL]]
[[Category:UCI]]
[[Category:PC]]
[[Category:X86]]
[[Category:X64]]
[[Category:Linux]]
[[Category:Windows]]
[[Category:Phish]]
