Author: blass uri
Date: 06:49:25 04/06/98
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On April 06, 1998 at 05:33:45, Sylvain Renard wrote: > >On April 06, 1998 at 03:35:06, Roland Pfister wrote: >>Patzer found Qe3 in 3:08 but it thinks it is a mate in 15 :-( >>I thought I had found that bug... > Capture plays Qe3 very quickly and see mate in 9 in less than >2 minutes (P PRO 200 MHz). The bug of Fritz 5 is vey strange, >someone as an idea of its origine? > Sylvain The evaluation function of fritz5 was: 6.09 9/18 5.78 10/20 5.47 11/22 5.16 12/25 4.84 13/25 4.53 14/28 4.22 15/30 3.91 16/32 3.59 17/34 3.28 18/36 2.97 19/38 I think this is something like 9-0.31*d when d is the depth of bruth force maybe fritz5 do some average between its evaluation by brute force and the eveluation of not brute force and use the depth. fritz4 and fritz3 have similiar bug fritz3 go almost to 0 but then go back in depth 16 it's evaluation is 0.13 and in depth 17 is 0.44 (in depth 15 0.44 and in depth 14 0.75)
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