It can be used for private purposes and as the open-source as well. As the UCI protocol is absolutely free, it gives it the advantage over the other protocols. For example, if the engine does not save the database of the games played (although it is better if this task is performed by the engine), then one can easily manage this database by UCI. The UCI standard was presented to the world by Rudolf Huber. He is also the founder of one of the most famous chess programs - Shredder, which is the 12-times world champion among chess machines. The standard was worked out by Stephan Meyer-Kahlen, German programmer, who was born in 1968 in Dusseldorf. The engine made to this standard can be easily connected to any chess program. That was just the time when the UCI standard was developed - the universal chess interface, allowing the chess engine to be connected to the graphic interface of the program shell. The first record of the chess engine was made about 20 years ago.

Where do the chess engines originate from and who makes them? This question is not trivial, vice versa it is quite actual, so it is worth talking about. That is why the chess engines are so popular. And the rating of the chess engines reaches 3000-3200. The maximum rating which can be set in it is 2600. For example, 'Kasparov Chess' is very good and clever shell. 'Fritz', 'Arena', 'Shredder') thus multiplying the force of the game shell. Chess engine is the unique software which is built into the program shell (e.g.

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