Author: Chris Conkie
Date: 11:42:16 09/30/05
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Thank you for your thoughtful post. All test positions shown here were analysed in ChessBase 8.0 which we believe to be at least one environment for which (in this case) Fritz 9 was intended. We are of the belief that propriortary formats such as the ones used in ChessBase engines should are no different to those of the many many amateur programmers who write and read here create. They are subject to the same scrutiny as any other. Positions that are both legal and illegal are considered in our analysis. When each new engine comes out it is subjected to exactly the same kinds of tests you see here. We have a nice legal position here for example that Crafty outputs complete gibberish when confronted with. For the most part, as you can see in this very thread, the response from those programmers is very positive. Because an engine is commercial, it follows that one would suppose that the engine does what it says on the box. If it does not, then one should consider why it is that faulty goods are sold. I know we consider this. The positions themselves are a way of interpreting how the engine is built. What methods are used for it's various parts (functions). The simplest positions are often the best. In the link below you can see some of these positions. http://www.exactachess.com/modules.php?name=Forums&file=viewtopic&topic_view=threads&p=307&t=128 As you can see rotation creates a very distinct thumbprint of engines. It shows wether they use the same concepts and if so, how they are implemented. Try a few, you might get a surprise or two. Regards Chris
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