Difference between revisions of "Sayuri"
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'''Sayuri''',<br/> | '''Sayuri''',<br/> | ||
− | an [[UCI]] compliant [[:Category:Open Source|open source chess engine]] under the [https://en.wikipedia.org/wiki/MIT_License MIT License], written by [[Hironori | + | an [[UCI]] compliant [[:Category:Open Source|open source chess engine]] under the [https://en.wikipedia.org/wiki/MIT_License MIT License], written by [[Ishibashi Hironori]] in [[Cpp|C++11]], first published in 2013 <ref>[http://www.talkchess.com/forum/viewtopic.php?t=49977 Sayuri (UCI Engine) by Ishibashi Hironori] by [[Norbert Raimund Leisner]], [[CCC]], November 08, 2013</ref>. Sayuri has an embedded [[LISP]] interpreter dubbed ''Sayulisp'', which can generate and operate the chess engine, and customize [[Search|search]] algorithms and [[Evaluation|evaluation]] weights <ref>[https://github.com/MetalPhaeton/sayuri/blob/master/README.md sayuri/README.md at master · MetalPhaeton/sayuri · GitHub]</ref>. |
=Features= | =Features= | ||
− | <ref>based on Sayuri 2015.12.08, [http://tinyurl.com/ohhna55 Sayuri 2015.12.08 Released!!] by [[Hironori | + | <ref>based on Sayuri 2015.12.08, [http://tinyurl.com/ohhna55 Sayuri 2015.12.08 Released!!] by [[Ishibashi Hironori]], [https://en.wikipedia.org/wiki/Google_Groups Google Groups], December 08, 2015</ref> |
==[[Board Representation]]== | ==[[Board Representation]]== | ||
Sayuri is a [[Bitboards|bitboard]] engine and determines [[Sliding Piece Attacks|sliding piece attacks]] using [[Rotated Bitboards|rotated bitboards]] indexed by [[Squares|square]] , 8-bit [[Occupancy of any Line|line occupancy]] and {0,45,90,135}-rotation - no [[First Rank Attacks#TheOuterSquares|outer square optimization]] for 4-fold denser tables applied. | Sayuri is a [[Bitboards|bitboard]] engine and determines [[Sliding Piece Attacks|sliding piece attacks]] using [[Rotated Bitboards|rotated bitboards]] indexed by [[Squares|square]] , 8-bit [[Occupancy of any Line|line occupancy]] and {0,45,90,135}-rotation - no [[First Rank Attacks#TheOuterSquares|outer square optimization]] for 4-fold denser tables applied. | ||
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* [http://www.talkchess.com/forum/viewtopic.php?t=55489 Sayuri 27th February 2015 Edition] by [[Norbert Raimund Leisner]], [[CCC]], February 27, 2015 | * [http://www.talkchess.com/forum/viewtopic.php?t=55489 Sayuri 27th February 2015 Edition] by [[Norbert Raimund Leisner]], [[CCC]], February 27, 2015 | ||
* [http://www.talkchess.com/forum/viewtopic.php?t=56794 Sayuri release two days ago] by [[Norbert Raimund Leisner]], [[CCC]], June 27, 2015 | * [http://www.talkchess.com/forum/viewtopic.php?t=56794 Sayuri release two days ago] by [[Norbert Raimund Leisner]], [[CCC]], June 27, 2015 | ||
− | * [http://tinyurl.com/ohhna55 Sayuri 2015.12.08 Released!!] by [[Hironori | + | * [http://tinyurl.com/ohhna55 Sayuri 2015.12.08 Released!!] by [[Ishibashi Hironori]], [https://en.wikipedia.org/wiki/Google_Groups Google Groups], December 08, 2015 |
* [http://www.talkchess.com/forum/viewtopic.php?t=58563 Sayuri] by [[Dann Corbit]], [[CCC]], December 11, 2015 | * [http://www.talkchess.com/forum/viewtopic.php?t=58563 Sayuri] by [[Dann Corbit]], [[CCC]], December 11, 2015 | ||
* [http://www.talkchess.com/forum/viewtopic.php?t=60140 Sayuri new releases] by [[Günther Simon]], [[CCC]], May 11, 2016 | * [http://www.talkchess.com/forum/viewtopic.php?t=60140 Sayuri new releases] by [[Günther Simon]], [[CCC]], May 11, 2016 | ||
* [http://www.talkchess.com/forum/viewtopic.php?t=65304 Sayuri 2017.09.26 release] by [[Norbert Raimund Leisner]], [[CCC]], September 27, 2017 | * [http://www.talkchess.com/forum/viewtopic.php?t=65304 Sayuri 2017.09.26 release] by [[Norbert Raimund Leisner]], [[CCC]], September 27, 2017 | ||
− | * [https://groups.google.com/forum/#!topic/sayuri-uci-chess-engine/fViINFFN2Rs Sayuri 2017.09.29 Released!!] by [[Hironori | + | * [https://groups.google.com/forum/#!topic/sayuri-uci-chess-engine/fViINFFN2Rs Sayuri 2017.09.29 Released!!] by [[Ishibashi Hironori]], [https://en.wikipedia.org/wiki/Google_Groups Google Groups], September 29, 2017 |
− | * [https://groups.google.com/d/msg/sayuri-uci-chess-engine/bvLzPjB5hDo/CTQzS4opBAAJ Re: Provide a short description?] by [[Hironori | + | * [https://groups.google.com/d/msg/sayuri-uci-chess-engine/bvLzPjB5hDo/CTQzS4opBAAJ Re: Provide a short description?] by [[Ishibashi Hironori]], [https://en.wikipedia.org/wiki/Google_Groups Google Groups], October 04, 2017 |
− | * [https://groups.google.com/forum/#!topic/sayuri-uci-chess-engine/p0ilh7ZPSrs Sayuri 2018.05.23 Released] by [[Hironori | + | * [https://groups.google.com/forum/#!topic/sayuri-uci-chess-engine/p0ilh7ZPSrs Sayuri 2018.05.23 Released] by [[Ishibashi Hironori]], [https://en.wikipedia.org/wiki/Google_Groups Google Groups], May 23, 2018 |
=External Links= | =External Links= |
Revision as of 11:20, 7 July 2019
Sayuri,
an UCI compliant open source chess engine under the MIT License, written by Ishibashi Hironori in C++11, first published in 2013 [2]. Sayuri has an embedded LISP interpreter dubbed Sayulisp, which can generate and operate the chess engine, and customize search algorithms and evaluation weights [3].
Contents
Features
Board Representation
Sayuri is a bitboard engine and determines sliding piece attacks using rotated bitboards indexed by square , 8-bit line occupancy and {0,45,90,135}-rotation - no outer square optimization for 4-fold denser tables applied.
Search
- Iterative Deepening
- Aspiration Windows
- Principal Variation Search
- Parallel Search
- Selectivity
- Move Ordering
Evaluation
- Evaluation Hash Table
- Material
- Piece-Square Tables
- Mobility
- Pinned Pieces
- Pawn Structure
- Evaluation of Pieces
- King Safety
Forum Posts
- Sayuri (UCI Engine) by Ishibashi Hironori by Norbert Raimund Leisner, CCC, November 08, 2013
- Sayuri 27th February 2015 Edition by Norbert Raimund Leisner, CCC, February 27, 2015
- Sayuri release two days ago by Norbert Raimund Leisner, CCC, June 27, 2015
- Sayuri 2015.12.08 Released!! by Ishibashi Hironori, Google Groups, December 08, 2015
- Sayuri by Dann Corbit, CCC, December 11, 2015
- Sayuri new releases by Günther Simon, CCC, May 11, 2016
- Sayuri 2017.09.26 release by Norbert Raimund Leisner, CCC, September 27, 2017
- Sayuri 2017.09.29 Released!! by Ishibashi Hironori, Google Groups, September 29, 2017
- Re: Provide a short description? by Ishibashi Hironori, Google Groups, October 04, 2017
- Sayuri 2018.05.23 Released by Ishibashi Hironori, Google Groups, May 23, 2018
External Links
Chess Engine
Misc
- Sayuri - Wiktionary
- Sayuri from Wikipedia
- Memoirs of a Geisha - Sayuri's Theme, Soundtrack (2005) composed and conducted by John Williams, featuring Yo Yo Ma and Itzhak Perlman, YouTube Video
References
- ↑ sayuri/sayuri_logo_small.png at master · MetalPhaeton/sayuri · GitHub
- ↑ Sayuri (UCI Engine) by Ishibashi Hironori by Norbert Raimund Leisner, CCC, November 08, 2013
- ↑ sayuri/README.md at master · MetalPhaeton/sayuri · GitHub
- ↑ based on Sayuri 2015.12.08, Sayuri 2015.12.08 Released!! by Ishibashi Hironori, Google Groups, December 08, 2015