Sayuri
Revision as of 12:20, 7 July 2019 by GerdIsenberg (talk | contribs)
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