Author: Mike S.
Date: 16:03:39 10/13/02
Go up one level in this thread
On October 13, 2002 at 18:24:58, Deepak Nityanandam wrote:
>During Dr Hsu's chat he said that the DB2 programmers didnt even consider DF
>for benchmarking purposes as they thought it was "way to weak" to play against
>DB2.
Maybe in 1997. But now as it's clear (or fairly clear...) that Deep Blue's
typical depth of "11(6)" did NOT mean 11 + 6 of nominal depth, but a depth of 11
and a *maximum* of 6 plies in the hardware for quiesence search (I hope I got
that right, finally), it seems obvious that Fritz has become stronger than Deep
Blue was. And most probably some other programs too, which are of similar
strength like Fritz 7.
It has been reported that Deep Fritz in Bahrain reaches a depth of 16 or 17 (I
can't remember exactly and where I read it) in the middlegame.
Also, even on single cpu running at 1,2 GHz, Fritz 7 reaches "base" depths of
15...16 in a few minutes, and selective depths of more than 40! It was said that
Deep Blue II had much more knowledge in the evals (than used today), but can
that compensate for ~4...5 additional plies? In general, I don't think so.
Regards,
M.Scheidl
Athlon@1,2 GHz, 256 MB Hash, Fritz 7.0.0.8, starting position:
1.e4 d5 2.exd5 Dxd5 3.Sc3 Dd7 4.d4 Sf6 5.Ld3 Sc6
= (0.16) Tiefe: 9/29 00:00:00 232kN
1.e4 e5 2.Sf3 d5 3.exd5 Dxd5 4.Sc3 De6 5.Sb5 Ld6 6.Sxd6+ cxd6 7.Lb5+ Sc6
= (0.22) Tiefe: 10/29 00:00:01 835kN
1.e4 e5 2.Sf3 Sf6 3.d4 Sxe4 4.Ld3 d5 5.dxe5
= (0.16) Tiefe: 11/29 00:00:03 1828kN
1.e4 e5 2.Sf3 Sc6 3.Sc3 Sf6 4.d4 exd4 5.Sxd4 Lb4 6.Lg5 Lxc3+ 7.bxc3 0-0 8.Sxc6
= (0.13) Tiefe: 12/35 00:00:07 3895kN
1.e4 e5 2.Sf3 Sf6 3.d4 Sxe4 4.Ld3 d5 5.Sxe5 Sd7 6.Dh5 Lb4+ 7.Ld2 g6
= (0.16) Tiefe: 13/36 00:00:20 11539kN
1.e4 e5 2.Sf3 Sf6 3.d4 exd4 4.e5 Se4 5.Dxd4 d5 6.exd6 Sxd6 7.De5+ Le6 8.Ld3
= (0.16) Tiefe: 14/39 00:00:42 23873kN
1.e4 e5 2.Sf3 Sf6 3.Sc3 Lb4 4.Sxe5 0-0 5.De2 Lxc3 6.dxc3 De7 7.Sd3 Sxe4 8.Lg5
= (0.16) Tiefe: 15/41 00:01:40 57410kN
1.e4 e5 2.Sf3 Sf6 3.Sxe5 De7 4.d4 d6 5.Sf3 Sxe4 6.Lb5+ Ld7 7.Le2 d5 8.0-0
= (0.22) Tiefe: 16/47 00:06:08 212072kN
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