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Subject: Re: theory question

Author: Bernhard Bauer

Date: 07:03:30 06/02/04

Go up one level in this thread


On June 02, 2004 at 09:46:18, Uri Blass wrote:

>Theory says Kg7
>Shredder7.04 says Kg6
>
>Who is right?
>
>Blass,U - Fritz 8, 130'/40+130'/40+120'
>[D]r1bq1bnr/ppp2k2/2n4p/3B4/4PppP/2N5/PPPP2P1/R1BQK2R b KQ - 0 1
>
>Analysis by Shredder 7.04:
>
>9...Kg7 10.d4 Kh7 11.Bxf4 Bg7 12.Nb5 Nf6 13.Bxc7 Bf5 14.Bxd8
>  -+  (-2.78)   Depth: 1/3   00:00:00
>9...Kg7 10.d4 Kh7 11.Bxf4 Bg7 12.Nb5 Nf6 13.Bxc7 Bf5 14.Bxd8
>  -+  (-2.78)   Depth: 1/10   00:00:00
>9...Kg7 10.d4 Kh7 11.Bxf4 Bg7 12.Nb5 Nf6 13.Bxc7 Bf5 14.Bxd8
>  -+  (-1.90)   Depth: 2/10   00:00:00
>9...Kg7 10.0-0 Bc5+ 11.d4 Bxd4+ 12.Be3 fxe3 13.Qxd4+
>  -+  (-1.91)   Depth: 2/10   00:00:00
>9...Kg7 10.Be6 Bxe6 11.Qxg4+ Bxg4
>  -+  (-2.16)   Depth: 3/10   00:00:00
>9...Kg7 10.d4 Qf6 11.e5 Nxe5 12.dxe5 Qxh4+
>  -+  (-2.16)   Depth: 3/10   00:00:00
>9...Kg7 10.d4 Qf6 11.e5 Nxe5 12.dxe5 Qxh4+
>  -+  (-1.90)   Depth: 4/10   00:00:00
>9...Kg7 10.d3 Bd6 11.0-0 Bc5+ 12.d4 Bxd4+ 13.Be3 fxe3 14.Qxd4+
>  -+  (-1.62)   Depth: 4/10   00:00:00
>9...Kg6 10.d3 Bd6 11.Bxc6 bxc6 12.d4 Nf6 13.0-0 Ba6 14.Rf2
>  -+  (-1.72)   Depth: 4/10   00:00:00
>9...Kg6 10.d3 Bd6 11.Bxc6 bxc6 12.d4 Nf6 13.0-0 Ba6 14.Rf2
>  -+  (-1.72)   Depth: 4/10   00:00:00
>9...Kg6 10.d3 Bd6 11.Bxc6 bxc6 12.d4 Nf6 13.0-0 Ba6 14.Rf2
>  -+  (-1.72)   Depth: 5/10   00:00:00
>9...Kg6 10.d3 Bd6 11.Bxc6 bxc6 12.d4 Nf6 13.0-0 Ba6 14.Rf2
>  -+  (-1.72)   Depth: 6/10   00:00:00  3kN
>9...Kg6 10.d3 Bd6 11.Bxc6 bxc6 12.d4 Nf6 13.0-0 Ba6 14.Rf2
>  -+  (-1.72)   Depth: 7/14   00:00:00  7kN
>9...Kg6 10.d3 Bd6 11.Bxc6 bxc6 12.d4 Nf6 13.0-0
>  -+  (-1.72)   Depth: 8/16   00:00:00  23kN
>9...Kg6 10.d3 Bd6 11.Bxc6 bxc6 12.d4 Nf6 13.0-0
>  -+  (-1.72)   Depth: 9/16   00:00:00  30kN
>9...Kg6 10.d3 Bd6 11.Bxc6 bxc6 12.d4 f3 13.gxf3 Bg3+ 14.Kd2 Qxd4+ 15.Ke2 gxf3+
>16.Kxf3 Qxd1+ 17.Kxg3 Qxh1
>  -+  (-1.72)   Depth: 10/25   00:00:03  285kN
>9...Kg6 10.Bxc6 bxc6 11.d4 Bg7 12.e5 Bf5 13.Bxf4 Kh7 14.0-0 Qxh4 15.Bg3
>  -+  (-1.79)   Depth: 11/37   00:00:17  2239kN
>9...Kg6 10.Bxc6 bxc6 11.d4 Bg7 12.e5 Bf5 13.Bxf4 Rb8 14.0-0 Qxh4 15.g3 Qh3
>16.Rb1
>  -+  (-1.60)   Depth: 12/42   00:00:37  5097kN
>9...Kg6 10.Bxc6 bxc6 11.d3 Bg7 12.Bxf4 Rb8 13.Qc1 Kh7 14.0-0 Qxh4 15.Be3 g3
>16.Rf7 Qh2+ 17.Kf1
>  -+  (-1.75)   Depth: 13/43   00:02:18  19062kN
>9...Kg6 10.Bxc6 bxc6 11.d3 Bd6 12.d4 f3 13.gxf3 Bg3+ 14.Kf1 c5 15.Kg2 Bxh4
>16.Be3 Kh7
>  -+  (-1.82)   Depth: 14/43   00:05:42  46780kN
>9...Kg6 10.Bxc6 bxc6 11.d3 Rb8 12.Bxf4 Rxb2 13.Qc1 Rb7 14.Be5 Bg7 15.Bxg7 Kxg7
>16.Qe3 Qf6 17.e5
>  -+  (-1.73)   Depth: 15/47   00:13:11  104717kN
>9...Kg6 10.d4 Nge7 11.Bxc6 Nxc6 12.d5 Ne5 13.Bxf4 Bg7 14.0-0 Kh7 15.Bxe5 Bxe5
>16.Rf7+
>  -+  (-1.84)   Depth: 16/49   00:42:43  314942kN
>
>(Blass, Tel-Aviv 02.06.2004)

IMHO computer programs are useless in such positions. You cannot trust them, as
they reach only low depth. So I would trust theory.
regards
Bernhard



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