Home * Engines * Sayuri

an UCI compliant open source chess engine under the MIT License, written by Hironori Ishibashi in C++11, first published in 2013 [1]. Sayuri has an embedded Lisp interpreter named Sayulisp, which can generate and operate the chess engine, and customize search algorithms and evaluation weights [2].
Sayuri Logo [3]



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.



See also

Forum Posts

External Links

Chess Engine



  1. ^ Sayuri (UCI Engine) by Ishibashi Hironori by Norbert Raimund Leisner, CCC, November 08, 2013
  2. ^ sayuri/README.md at master · MetalPhaeton/sayuri · GitHub
  3. ^ sayuri/sayuri_logo_small.png at master · MetalPhaeton/sayuri · GitHub
  4. ^ based on Sayuri 2015.12.08, Sayuri 2015.12.08 Released!! by Hironori Ishibashi, Google Groups, December 08, 2015

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