25,161
edits
Changes
Created page with " '''Home * Engines * DanaSah''' '''DanaSah''',<br/> a Chess Engine Communication Protocol, and since version '''6.1''' UCI compatible :Category:O..."
'''[[Main Page|Home]] * [[Engines]] * DanaSah'''
'''DanaSah''',<br/>
a [[Chess Engine Communication Protocol]], and since version '''6.1''' [[UCI]] compatible [[:Category:Open Source|open source chess engine]] by [[Pedro Castro]], written in [[C]], and first released in January 2005.
Also, since DanaSah '''6.1''' in May 2016, [[Chess960]] is supported, available as [[Windows]], [[Linux]] and [[Android]] binary.
=Etymology=
DanaSah's name is related to [https://en.wikipedia.org/wiki/Dana Dana] of Daniela and [https://ro.wikipedia.org/wiki/%C8%98ah_%28joc%29 Sah], which means chess in [https://en.wikipedia.org/wiki/Romanian_language Romanian] <ref>[https://sites.google.com/site/danasah/english/readme Chess Engine DanaSah | readme]</ref>.
=Features=
<ref>[https://sites.google.com/site/danasah/english/readme Chess Engine DanaSah | readme]</ref>
* [[Opening Book|Opening book]] of [[ProDeo|Pro Deo]]. Thanks to [[Ed Schroder|Ed Schröder]] and [[Jeroen Noomen]]
* [[Endgame Bitbases|Bitbases]] of [[Scorpio]]. Thanks to [[Daniel Shawul]]
* [[Board Representation|Board representation]]: [[Array|array]] of 64, based on [[FirstChess]] ([[Pham Hong Nguyen]])
* [[Aspiration Windows|Aspiration search]], window 15 and 150
* [[Principal Variation Search|PVS]] and [[Quiescence Search|quiescence search]]. Thanks to [[Bruce Moreland]] for his Web page
* [[Transposition Table|Transposition tables]]. Thanks to [[Miguel Izquierdo]] ([[Popochin]])
* [[Null Move Pruning#AdaptiveNullMovePruning|Adaptive Null move pruning]], [[Depth Reduction R|R]] = 2-5
* ([[Internal Iterative Deepening|Internal]]) [[Iterative Deepening]]
* [[Extensions|Search extensions]]: [[Check Extensions|check]], [[Passed Pawn Extensions|pawn on seventh]], [[Recapture Extensions|recapture]], transition to [[Pawn Endgame|pawn endgame]]
* [[Late Move Reductions|Late move reductions]]
* [[Razoring]]
* [[Move Ordering|Move ordering]]: [[Hash Move|hash move]], [[PV-Move]], [[Captures|captures]], [[Promotions|promotions]], [[Killer Move|killer moves]], [[History Heuristic|history heuristic]]
* [[Evaluation]] with [[Lazy Evaluation|lazy eval]] and [[Evaluation Hash Table|evaluation cache]], [[Material]], [[Piece-Square Tables|piece-square tables]], [[Pawn Structure|pawn structure]], [[Open file|open files]], [[Mobility|mobility]], [[King Safety|king safety]]
=Tournament Play=
DanaSah played on-line the [[CCT9]], [[CCT10]] and [[CCT12]] [[CCT Tournaments]], and the [[WCRCC 2007]], the First Annual ACCA World Computer Rapid Chess Championship. Over the board, DanaSah played the [[WCCC 2009]] blitz tournament in [https://en.wikipedia.org/wiki/Pamplona Pamplona], [https://en.wikipedia.org/wiki/Spain Spain] <ref>[https://www.game-ai-forum.org/icga-tournaments/tournament.php?id=208 7th World Computer Chess Championship (Blitz) - Pamplona 2009 (ICGA Tournaments)]</ref>, and won the [[CCC 2009|4th Chess Computer Cup]] in [https://en.wikipedia.org/wiki/Carugate Carugate], [https://en.wikipedia.org/wiki/Italy Italy] the same year, and further played the [[IOCSC 2010]] and [[IOCSC 2012]] [[Italian Computer Chess Championship#IOCSC|Italian Open Chess Software Cups]], the latter in the original category.
=Photos & Games=
[[FILE:DanaSah_CCC2009.JPG|none|border|text-bottom|link=http://www.scaccomasco.com/foto/2009/CCC4-7_nov/album/index.html]]
[[CCC 2009]], round 1, [[BremboCE]] vs [[DanaSah]] operated by Sonia <ref>[http://www.scaccomasco.com/foto/2009/CCC4-7_nov/album/index.html Chess Computer Cup 4 - Photo Gallerie 1]</ref> <ref>[http://www.scaccomasco.com/2009/wwwCCC4/tblscore.html Chess Computer Cup 4]</ref>
<pre>
[Event "Computer Chess Cup 4"]
[Site "Carugate"]
[Date "2009.11.07"]
[Round "1"]
[White "BremboCE 0.6.2"]
[Black "DanaSah v.4.24"]
[Result "0-1"]
1.c4 b6 2.Nc3 Bb7 3.e4 e6 4.d4 Bb4 5.Qc2 Qh4 6.Bd3 f5 7.g3 Qh5 8.Bd2 Nf6
9.f3 Nc6 10.Nb5 fxe4 11.fxe4 O-O 12.Ne2 a6 13.Nbc3 Bd6 14.O-O Ng4 15.h4
Nb4 16.Rxf8+ Rxf8 17.Qb3 Bxg3 18.Rf1 Rxf1+ 19.Kxf1 Nh2+ 20.Kg1 Qf3 21.Nxg3
Qxg3+ 22.Kh1 Nf3 23.Qxb4 Qh2# 0-1
</pre>
=See also=
* [[Caligula PC|Caligula]]
=Forum Posts=
==2005 ...==
* [https://www.stmintz.com/ccc/index.php?id=435719 DanaSah 1.0 - GM Mario Gómez (1-2)] by [[Pedro Castro]], [[CCC]], July 08, 2005
* [https://www.stmintz.com/ccc/index.php?id=436603 DanaSah 1.6 vs Pablo Ignacio Restrepo (Father)] by [[Pedro Castro]], [[CCC]], July 13, 2005
* [http://www.open-aurec.com/wbforum/viewtopic.php?p=32935 danasah for linux] by [[Pedro Castro]], [[Computer Chess Forums|Winboard Forum]], March 18, 2008 » [[Linux]]
* [http://www.open-aurec.com/wbforum/viewtopic.php?f=2&t=49240 Update DanaSah and Caligula] by [[Pedro Castro]], [[Computer Chess Forums|Winboard Forum]], June 04, 2008 » [[Caligula PC|Caligula]]
==2010 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=33335 DanaSah 4.37] by [[Graham Banks]], [[CCC]], March 18, 2010
* [http://www.talkchess.com/forum/viewtopic.php?t=34515 STS [1-10] Danasah 4.45] by [[Swaminathan Natarajan|Swaminathan]], [[CCC]], May 26, 2010 » [[Strategic Test Suite]]
* [http://www.talkchess.com/forum/viewtopic.php?t=46742 DanaSah 5.00] by [http://www.talkchess.com/forum/profile.php?mode=viewprofile&u=881 Ruxy Sylwyka], [[CCC]], January 03, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=48354 DanaSah and DanaSah-Z] by [[Pedro Castro]], [[CCC]], June 20, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=48530 Test DanaSah 5.06] by [[Pedro Castro]], [[CCC]], July 03, 2013
==2015 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=59905 Chess on Android] by [[Pedro Castro]], [[CCC]], April 19, 2016 » [[Chess for Android]], [[Chess Engine Communication Protocol]]
* [http://www.talkchess.com/forum/viewtopic.php?t=60278 DanaSah 6.1 for Windows and Android] by [[Pedro Castro]], [[CCC]], May 25, 2016
* [http://www.talkchess.com/forum/viewtopic.php?t=63185 DanaSah 6.5] by [[Pedro Castro]], [[CCC]], February 15, 2017
* [http://www.talkchess.com/forum/viewtopic.php?t=65406 Danasah 7.0] by [[Sergio Martinez]], [[CCC]], October 09, 2017
=External Links=
==Chess Engine==
* [https://sites.google.com/site/danasah/english/home Chess Engine DanaSah]
* [https://www.game-ai-forum.org/icga-tournaments/program.php?id=606 Danasah's ICGA Tournaments]
* [https://sites.google.com/site/hispanicchessengines/hispanic-american-engines-1/description Descriptions - Hispanic Chess Engines]
* [http://ccrl.chessdom.com/ccrl/4040/cgi/compare_engines.cgi?family=DanaSah&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 DanaSah] in [[CCRL|CCRL 40/40]]
* [http://ccrl.chessdom.com/ccrl/404FRC/cgi/compare_engines.cgi?family=DanaSah&print=Rating+list&print=Results+table&print=LOS+table&print=Ponder+hit+table&print=Eval+difference+table&print=Score+with+common+opponents&match_length=30 DanaSah] in [[CCRL|CCRL 40/4 FRC]]
==Misc==
* [https://en.wikipedia.org/wiki/Dana Dana from Wikipedia]
* [https://en.wiktionary.org/wiki/Dana Dana - Wiktionary]
* [https://en.wiktionary.org/wiki/sah sah - Wiktionary]
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:Open Source]]
[[Category:WinBoard]]
[[Category:UCI]]
[[Category:Android]]
[[Category:Chess960]]
