Editing Chess engine (section)

==Interface protocol==
Common Winboard engines would include ''[[Crafty]],'' ''ProDeo'' (based on ''[[REBEL (chess)|Rebel]]''), ''Chenard,'' ''[[Zarkov]]'' and ''Phalanx.''

In 1995, [[Chessbase]] released a version of their database program including [[Fritz (chess)|Fritz]]&nbsp;4 as a separate engine.  This was the first appearance of the Chessbase protocol.  Soon after, they added the engines [[Junior (chess program)|Junior]] and [[Shredder (chess)|Shredder]] to their product line up, including engines in CB protocol as separate programs which could be installed in the [[Chessbase]] program or one of the other Fritz style GUI's.  Fritz 1-14 were only issued as Chessbase engines, while ''[[Hiarcs]],'' ''Nimzo,'' ''[[Chess Tiger]]'' and ''[[Crafty]]'' have been ported to Chessbase format even though they were UCI or Winboard engines.  Recently, Chessbase has begun to include [[Universal Chess Interface]] (UCI) engines in their playing programs such as ''[[Komodo (chess)|Komodo]],'' ''[[Houdini (chess)|Houdini]],'' ''[[Fritz (chess)|Fritz]] 15–16'' and ''[[Rybka]]'' rather than convert them to Chessbase engines.

In 2000, [[Stefan Meyer-Kahlen]] and Franz Huber released the [[Universal Chess Interface]], a more detailed protocol that introduced a wider set of features. [[Chessbase]] soon after dropped support for Winboard engines, and added support for UCI to their engine GUI's and [[Chessbase]] programs.  Most of the top engines are UCI these days: ''[[Stockfish (chess)|Stockfish]],'' ''[[Komodo (chess)|Komodo]],'' ''[[Leela Chess Zero]],'' ''[[Houdini (chess)|Houdini]],'' ''[[Fritz (chess)|Fritz]] 15-16,'' ''[[Rybka]],'' ''[[Shredder (software)|Shredder]],'' ''[[Fruit (software)|Fruit]],'' ''[[Critter (chess)|Critter]],'' ''[[IPPOLIT|Ivanhoe]]'' and ''Ruffian.''

From 1998, the German company Millenium 2000 briefly moved from dedicated chess computers into the software market, developing the Millennium Chess System (MCS) protocol for a series of CD's containing ''[[ChessGenius]]'' or ''[[Shredder (software)|Shredder]],'' but after 2001 ceased releasing new software.<ref>''Computer-schach & Spiele.''</ref>  A more longstanding engine protocol has been used by the Dutch company, Lokasoft,<ref>{{Cite web|url=https://www.lokasoft.nl/|title=Home - Lokasoft - Home of ChessPartner|website=Lokasoft.nl|access-date=26 June 2022|archive-date=26 June 2022|archive-url=https://web.archive.org/web/20220626081524/https://www.lokasoft.nl/|url-status=live}}</ref> which eventually took over the marketing of Ed Schröder's ''[[REBEL (chess)|Rebel]].''