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Subject: Re: Chess Engine Performance Tests?

Author: Peter Fendrich

Date: 01:31:58 08/11/03

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On August 11, 2003 at 03:54:38, Thomas McBurney wrote:

>On August 10, 2003 at 21:03:18, Johan Wessfeldt wrote:
>
>>jO!
>>
>>Im working on a chessengine in java and I'm pretty much done with my move
>>generation algorithms.(Took awhile to complete.. :] )
>>
>>Are there any common tests ppl use to test their chess engines with to see how
>>fast it is? (Not how smart it is)
>>
>>Like.. creating 1.000.000 move-lists out of preset chess position.
>>Could be fun to see if my engine(or java) is good or not :]
>
>
>Throw this position into your move generator and do a perft test on it.  This
>position has a nsty habit of crashing engines, even the odd comercial engine
>like my Frtiz 4.
>
>[D]R6R/3Q4/1Q4Q1/4Q3/2Q4Q/Q4Q2/pp1Q4/kBNN1KB1 w - - 0 1
>
>This is the output from my chess engine.  Can someone verify the following perft
>results with their engine?
>
>depth  1  nodes= 218
>depth  2  nodes= 99
>depth  3  nodes= 19073
>depth  4  nodes= 85043
>depth  5  nodes= 13853661
>depth  6  nodes= 115892741

I can verify that I get exactly these figures with Terra.
(command: nodecnt 6)
/Peter

>Also look at Peters perft test web page for good perft tests and results .
>http://homepages.caverock.net.nz/~peter/perft.htm
>
>Cheers,
>Tom.



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