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Subject: Marathon.cbh Test

Author: m.d.hurd

Date: 15:04:28 01/27/04


For a bit of fun I ran the marathon test within shredder 8 chessbase gui. I
tested the native chessbase engine shredder 8 and the uci engine modified to
shredder 8 gambit settings.

The marathon test consists of 210 positions. I used the parameters 60 seconds
max for each position with 1 extra ply. Computer Athlon 2400xp 1 gb ram. 256 mb
hash for each engine. Test for each engine takes about 75 mins approx.

The result was shown as :

Shredder 8 181/210 for 86%
shredder 8 gambit 183/210 for 87%

The strange thing is that were only 29 medals.

20 positions that both engines failed within 1 minute
9 positions that shredder gambit solved and shredder 8 failed within 1 minute.

Therefore I think the score for shredder 8 is correct, however it looks as
though the score for shredder 8 gambit may be 190/210 for 90% however.

Here is one of the positions that is given as RH1-+
Solved by shredder 8 gambit in just over 9 seconds which was not solved by
shredder 8 in 1 minute.

[D]2kr3r/ppp1qpp1/2p5/2b2b2/2P1pPP1/1P2P1p1/PBQPB3/RN2K1R1 b Q - 0 1



Regards

Mike







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