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GerdIsenberg GerdIsenberg Apr 11, 2017

**[[Home]] * [[Engines]] * Zeta**
|| [[image:zeta.png align="left"]] ||~   || **Zeta**, (Zeta OpenCL Chess)
an experimental [[Open Source Engines|open source chess engine]] written in [[OpenCL]] by [[Srdja Matovic]]. The engine has been in development since 2010 and was first released July 13, 2011 under the [[Free Software Foundation#GPL|GNU GPL]]. Zeta supports only some basic commands of the [[chessprogramming/Chess Engine Communication Protocol|Chess Engine Communication Protocol]] ([[Winboard]]/[[Xboard]]). Main features are the use of [[Quad-Bitboards]], and its ability to run on a [[GPU]]. ||
|| Zeta Logo ||~   ||^   ||
[[toc]]
=Details= 
Zeta is written in [[C]] (host) and [[OpenCL]] (device). The host handles the IO, but all chess related computations are done in OpenCL on the device.
Zeta v097 and v098 were designed to run thousands of independent [[Thread|threads]] on a [[GPU]], therefore they store the expanded search tree via an randomized [[Best-First]]-MiniMax search in [[Memory|memory]] .

=NPS and Playing Strength= 
* Zeta 098c on Nvidia GeForce GTX 480, ca. 5 Mnps, est. 2000 Elo
* Zeta 097x on Nvidia GeForce GTX 480, ca. 5 Mnps, est. 1800 Elo
* Zeta 098c on AMD Radeon R9 290, ca. 3.2 Mnps
* Zeta 097x on AMD Radeon HD 7750, ca. 800 Knps

=See also= 
* [[Zeta Dva]]

=Forum Posts= 
* [[http://www.talkchess.com/forum/viewtopic.php?t=33315|Zeta, a chess engine in OpenCL]] by [[Srdja Matovic]], [[CCC]], March 17, 2010
* [[http://www.talkchess.com/forum/viewtopic.php?t=39459|Zeta plays chess on a gpu]] by [[Srdja Matovic]], [[CCC]], June 23, 2011
* [[http://www.talkchess.com/forum/viewtopic.php?t=62288|ZetaOpenCL 098ew64 running on Windows OS]] by [[Norbert Raimund Leisner]], [[CCC]], November 27, 2016
* [[http://www.talkchess.com/forum/viewtopic.php?t=63719|Zeta v099a, gpu chess update]] by [[Srdja Matovic]], [[CCC]], April 11, 2017

=External Links= 
* [[https://github.com/smatovic/Zeta|GitHub - smatovic/Zeta: Experimental chess engine written in OpenCL]]
* [[https://web.archive.org/web/20140604141114/http://zeta-chess.blogspot.com/|Archived Zeta Chess blog]], [[http://en.wikipedia.org/wiki/Wayback_Machine|Wayback Machine]]

=What links here?= 
[[include component="backlinks" page="page:Zeta" limit="60"]]
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