Zeta

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Zeta, (Zeta OpenCL Chess) an experimental open source chess engine by Srdja Matovic, written in OpenCL. The engine has been in development since 2010 and was first released July 13, 2011 under the GNU GPL. Zeta supports only some basic commands of the Chess Engine Communication Protocol aka WinBoard and XBoard. It features Quad-Bitboards, and its ability to run on a GPU.

=Details= Zeta is written in C (host) and OpenCL (device). The host handles the IO, but all chess related computations are done via OpenCL on the device.

Zeta v099 is a port of Zeta Dva to OpenCL, with parallel Alpha-Beta search, therefore 64 gpu-threads are coupled to one worker, used during move generation, move picking and evaluation in parallel.

Zeta v097 and v098 were designed to run thousands of independent threads on a GPU, therefore they store the expanded game tree via an parallel Best-First Minimax Search search in memory.

=See also=
 * Zeta Dva

=Forum Posts=

2010 ...

 * Zeta, a chess engine in OpenCL by Srdja Matovic, CCC, March 17, 2010
 * Zeta plays chess on a gpu by Srdja Matovic, CCC, June 23, 2011
 * ZetaOpenCL 098ew64 running on Windows OS by Norbert Raimund Leisner, CCC, November 27, 2016
 * Zeta v099a, gpu chess update by Srdja Matovic, CCC, April 11, 2017
 * Looking for someone to test Zeta v099l on RTX 2080 TI, or similar, gpu by Srdja Matovic, CCC, June 24, 2019

2020 ...

 * Zeta with NNUE on GPU? by Srdja Matovic, CCC, March 31, 2021 » NNUE, GPU

=External Links=

Chess Engine

 * GitHub - smatovic/Zeta: Experimental chess engine written in OpenCL
 * Zeta Chess blog

Misc

 * Zeta from Wikipedia
 * Zeta (disambiguation) from Wikipedia
 * Zeta distribution from Wikipedia
 * Riemann zeta function from Wikipedia
 * List of zeta functions from Wikipedia

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