Skip to content
master
Switch branches/tags
Code

Latest commit

Files

Permalink
Failed to load latest commit information.
Type
Name
Latest commit message
Commit time
src
May 23, 2021
Mar 18, 2019
May 14, 2015
May 23, 2021
May 23, 2021

Cinnamon

UCI Chess Engine

Cinnamon is a chess program for Windows, Linux, Mac OS, Android and Raspberry Pi, is a console-based chess engine for use with xboard, Arena, Tarrasch, Droidfish or any UCI-compatible GUI. Cinnamon is also a javascript library to play with chessboardjs or any js GUI.

Version

2.4

News

  • Reverse Futility Pruning
  • Stalemate improvement
  • Trasposition Table improvement
  • Bug fix in castle
  • Bug fix in en passant
  • Speeded up Perft
  • Compilable with MS Visual Studio

Useful links

Features

  • Elo ratings
  • Available for both Unix, Windows, Mac, Android, ARM and Javascript
  • UCI protocol
  • GPL 3 License
  • Chess 960
  • C++11 source
  • PVS
  • Rotated bitboards
  • Null moves
  • Futility pruning
  • Reverse Futility Pruning
  • Delta pruning
  • Razoring
  • Interruptible multithread Perft test standard and chess960
  • 32/64 bit architectures
  • Iterative deeping
  • History heuristics
  • Killer heuristics
  • Lazy evaluation
  • MVV/LVA
  • Transposition Table
  • Aspiration Windows
  • Late Move Reduction
  • Ponder
  • Gaviota Tablebases
  • Syzygy Tablebases

Binaries

Binaries are available here. All files are compiled statically, no further libraries are necessary.

Command line tools

Perft

cinnamon.exe -perft [-d depth] [-c nCpu] [-h hash size (mb) [-F dump file]] [-Chess960] [-f "fen position"]

Setting -F and -h you can stop (Ctrl-c) and restart the perft process.

Gaviota DTM (distance to mate)

cinnamon.exe -dtm-gtb -f "fen position" -p path

Gaviota WDL (win/draw/loss)

cinnamon.exe -wdl-gtb -f "fen position" -p path

SYZYFY DTZ (distance to zero)

cinnamon.exe -dtz-syzygy -f "fen position" -p path

SYZYFY WDL (win/draw/loss)

cinnamon.exe -wdl-syzygy -f "fen position" -p path

EPD generator

cinnamon.exe -puzzle_epd -t K?K?

example: cinnamon.exe -puzzle_epd -t KRRKPN

Compiling

Cinnamon requires C++11 or greater

  • use MS Visual Studio (cinnamon.vcxproj)

  • use cmake (CMakeLists.txt)

  • use make - unique Makefile to compile for many architectures:

    $ make


    Makefile for cross-compile Linux/Windows/OSX/ARM/Javascript

    make cinnamon64-modern-INTEL     > 64-bit optimized for modern Intel cpu
    make cinnamon64-BMI2             > 64-bit optimized for Haswell Intel cpu
    make cinnamon64-modern-AMD       > 64-bit optimized for modern Amd cpu
    make cinnamon64-modern           > 64-bit with popcnt bsf sse3 support
    make cinnamon64-generic          > Unspecified 64-bit
    make cinnamon64-ARM              > Optimized for ARM cpu

    make cinnamon32-modern           > 32-bit with sse support
    make cinnamon32-generic          > Unspecified 32-bit
    make cinnamon32-ARM              > Optimized for ARM cpu

    make cinnamon-js                 > Javascript build

    add:
     COMP=compiler                   > Use another compiler
     FULL_TEST=yes                   > Unit test (googletest)


    g++ is the default compiler, add COMP=yourcompiler to use another compiler
     example: make cinnamon64-modern-INTEL COMP=clang++

License

Cinnamon is released under the GPLv3+ license.

Credits

Cinnamon was written by Giuseppe Cannella at gmail dot com.