Author: Stefan Meyer-Kahlen
Date: 13:36:02 11/29/00
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On November 29, 2000 at 13:56:25, David Eppstein wrote: >On November 28, 2000 at 09:15:30, Stefan Meyer-Kahlen wrote: > >> >>UCI (=universal chess interface) >> >>This is the description of a new interface between a chess engine and a >>graphical user interface called UCI. It was designed by Rudolf Huber and Stefan >>Meyer-Kahlen and is used in the chess engines SOS 11/2000 and Shredder 5 as well >>as in the Shredder 5 graphical user interface. Also the new version 6 of Chess >>Assistant will support this engine interface. The UCI interface is free to use >>for everyone, so you can use it in your own program without any licence fees or >>restrictions. If you make any additions or modifications to the interface it >>might be a good idea to contact me before so we can keep compatibility. >> >>The interface is similar to Winboard, keeping its easiness but eliminating the >>disadvantages of it. It should be not much work to adept an chess engine to UCI >>especially if it’s already supporting winboard. It is also possible to support >>both UCI and winboard in the same exe file. >> >>What are the advantages of UCI compared to Winboard? >> >>· All engine options can be modified within the graphical user interface so >>there is no need to deal with ini files. >>· Much better capabilities to display search information of the engine, >>· Definition of a principal variation is included, >>· It’s more robust, the GUI always knows exactly what the engine is doing. >>· It’s supporting multi variation mode, >>· Support for endgame tablebases >>· Flexible time controls, >>· The engine can identify itself >>· UCI is supporting a copy protection mechanism (for the professionals) >> >> >>The advantages to other engine interfaces are: >> >>· It’s free >>· It’s easy to use >>· It’s easy to extent >>· It’s independent of the operating system >>· It’s capable of network play >> >> >>Below is the “formal” definition of the engine interface, if you have any more >>question concerning UCI I will try to answer them. >> >>Stefan >> >> >>------------------------------------------------------------------------------------------------- >> >> >>* The specification is independend of the operationg system. For Windows, >> the engine is a normal exe file, either a console or "real" windows >>application. >> >>* all communication is done via standard input and output with plain text >>commands, > >These two statements contradict each other. Some of us run operating systems >without any "pipe" facility (i.e., MacOS versions 9 or earlier). I bet you have fprintf(stdout, ....) and gets(..), that'll do. Stefan
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