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Subject: Re: Unexpected Test Results ?

Author: Andreas Herrmann

Date: 09:48:30 05/30/03

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On May 30, 2003 at 12:16:51, Geoff wrote:

>Hello
>
>Could anyone comment on the following test results that have got me puzzled
>
>I have been testing 3 versions of chess engines I have been tinkering with
>
>Engine 1)  TSCP Original Version
>Engine 2)  Speeded up TSCP with code algorithm changes
>Engine 3)  Same as Engine 2 but with Null move enabled
>
>Results were
>
>Speeded Up version       29.0 Points
>TSP Original Version     18.5 Points
>Speeded Up & Null Move   15.5 Points
>
>I know that Null move logic can potentially sometimes miss the best move
>available, but I wasn't expecting it to have such a negative effect.
>I guess it is possible I haven't implemented Null move correctly and it is just
>a bug causing this ?
>Could a correctly implemented Null move weaken a program so badly as shown above
>?
>I have checked my code, can't see an obvious mistake, so any ideas greatly
>appreciated.
>
>         Regards Geoff

at first, Null Move brings much more in longer time controls. So don't expect a
big advantage in bullet games. But i guess you have a bug in your null move
code.

Andreas







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