Author: Christophe Theron
Date: 06:57:28 08/01/98
Go up one level in this thread
On July 31, 1998 at 22:51:18, blass uri wrote:
>position:
>2r2rk1/2q2pP1/p1b1pp2/1p6/4P3/2Np3P/PPP3Q1/1K4R1
>white to move.
>
>Fritz5 arrived to a winning position because it has a better positional
>understanding.
>
>Fritz5 played 25.cxd3 and made a draw when 25.Qd2 is winning for white
>
>Fritz5 using 131072Kbytes hash tables needed almost 30 minutes to find
>Qd2
>Junior5(16 bit version for fritz) needed 10 minutes and 40 seconds
>using 31000 Kbytes
>
>This is on pentium200MMX
>
>Genius3 needed 42 seconds to find Qd2 on a pentium100Mh with 15 Mbytes hash
>tables.
This is an interesting point, Uri. As far as I know, nobody had seen this line.
Just for fun I tried the position on various versions of Chess Tiger. Here are
the results on my K5-100 16Mb hash, and an estimation for P2-300 16Mb hash (in
fact I had P2-300 with 32Mb hash in Paris):
CT 11.0 (Paris version) : Qd2 found in 641.91s, 213.97s on P2-300.
CT 11.2 (Paderborn ver.): Qd2 found in 398.15s, 132.72s on P2-300.
CT 11.4 : Qd2 found in 426.71s, 142.24s on P2-300.
CT 11.5 (current) : Qd2 found in 365.47s, 121.82s on P2-300.
Times on P200MMX should be 25% less than on K5-100.
With white, Chess Tiger would have missed the win in Paris (and would have
played cxd3). In Paderborn, it would have played the right move. :)
Christophe
>I think the strong point of Fritz5 is positional understanding
>The weak point of fritz5 is the opening book.
>In tactics it is sometimes weaker and sometimes stronger than other programs
>
>In the first round against Isichess Fritz5 with white came out of the opening
>book with negative evaluation with white.
>
>I believe fritz5's opening book has too many lines stupid humans played.
>It is better to delete lines Fritz5 does not like from the opening book of
>fritz5.
>
>Uri
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