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Subject: Re: f3?? from deepblue-kasparov game 5 match1

Author: Slater Wold

Date: 03:20:38 09/16/01

Go up one level in this thread


On September 16, 2001 at 05:40:31, Uri Blass wrote:

>On September 15, 2001 at 18:37:06, Slater Wold wrote:
>
>>On September 15, 2001 at 17:12:37, Vincent Diepeveen wrote:
>>
>>[D]8/p4bpk/7p/3rq3/3Npp2/PPQ3P1/3R1PKP/8 w - - 3 32
>>
>>Deep Fritz fails low on gxf4 in :54 seconds, but has a hard time replacing it.
>>
>>Deep Fritz T29c - W,S
>>8/p4bpk/7p/3rq3/3Npp2/PPQ3P1/3R1PKP/8 w - - 0 1
>>
>>Analysis by Deep Fritz T29c:
>>
>>1.gxf4
>>  ³  (-0.50)   Depth: 1/3   00:00:00
>>1.Kg1 fxg3
>>  ³  (-0.44)   Depth: 2/14   00:00:00
>>1.Rd1 f3+
>>  ³  (-0.28)   Depth: 2/14   00:00:00
>>1.Rd1 f3+
>>  ³  (-0.28)   Depth: 2/14   00:00:00
>>1.Rd1 f3+
>>  ³  (-0.28)   Depth: 2/14   00:00:00
>>1.Rd1 f3+
>>  ³  (-0.28)   Depth: 2/14   00:00:00
>>1.Rd1 f3+
>>  ³  (-0.28)   Depth: 2/14   00:00:00
>>1.Rd1 f3+
>>  ³  (-0.28)   Depth: 2/14   00:00:00
>>1.Rd1 f3+
>>  ³  (-0.28)   Depth: 2/14   00:00:00
>>1.Rd1 Qh5 2.Qe1 f3+ 3.Kg1
>>  ³  (-0.41)   Depth: 3/13   00:00:00  3kN
>>1.h3!
>>  ³  (-0.37)   Depth: 3/15   00:00:00  4kN
>>1.h3! f3+
>>  ³  (-0.34)   Depth: 3/15   00:00:00  5kN
>>1.gxf4!
>>  ³  (-0.31)   Depth: 3/16   00:00:00  6kN
>>1.gxf4 Qxf4 2.Qe3 Qg4+ 3.Qg3 Qh5
>>  =  (-0.25)   Depth: 4/14   00:00:00  7kN
>>1.gxf4 Qxf4 2.Qe3 Qg4+ 3.Qg3 Qh5 4.Kg1
>>  ³  (-0.31)   Depth: 5/15   00:00:00  20kN
>>1.gxf4 Qxf4 2.Qe3 Qg4+ 3.Qg3 Qh5 4.Kg1 a6
>>  ³  (-0.31)   Depth: 6/17   00:00:00  41kN
>>1.gxf4 Qxf4 2.Qe3 Qg4+ 3.Qg3 Qh5 4.Qe3 Qg6+ 5.Qg3 Qf6
>>  ³  (-0.31)   Depth: 7/19   00:00:00  77kN
>>1.gxf4 Qxf4 2.Qe3 Rg5+ 3.Kh1 Qg4 4.f4 exf3 5.Nxf3 Bd5
>>  ³  (-0.37)   Depth: 8/22   00:00:00  163kN
>>1.gxf4 Qxf4 2.Qe3 Rg5+ 3.Kh1 Qg4 4.f4 exf3 5.Nxf3 Bd5 6.Rf2
>>  ³  (-0.34)   Depth: 9/21   00:00:00  435kN
>>1.gxf4--
>>  ³  (-0.66)   Depth: 10/28   00:00:00  829kN
>>1.gxf4-- Qxf4 2.Qe3 Rg5+ 3.Kf1 Qxh2 4.Qxe4+ Bg6 5.Qe3 Re5 6.Qf3 Be4
>>  µ  (-0.91)   Depth: 10/28   00:00:01  1322kN
>>1.gxf4 Qxf4 2.Qe3 Rg5+ 3.Kf1 Qxh2 4.Qxe4+ Bg6 5.Qe3 Re5 6.Qf3 Be4
>>  µ  (-0.78)   Depth: 11/28   00:00:10  10103kN
>>1.gxf4 Qxf4 2.Qe3 Rg5+ 3.Kf1 Qxh2 4.Qxe4+ Bg6 5.Qe3 Rg1+ 6.Ke2 Qh5+
>>  µ  (-0.87)   Depth: 12/30   00:00:15  14926kN
>>1.gxf4--
>>  µ  (-1.19)   Depth: 13/32   00:00:36  35237kN
>>1.gxf4-- Qxf4 2.Qe3 Rg5+ 3.Kh1 Qg4 4.f4 exf3 5.Qf2 Qf4 6.Nxf3 Bd5
>>  -+  (-1.69)   Depth: 13/34   00:00:54  51719kN
>>1.gxf4 Qxf4 2.Qe3 Rg5+ 3.Kh1 Qg4 4.f4 exf3 5.Qf2 Bd5 6.Rd1 Kg6
>>  -+  (-1.78)   Depth: 14/34   00:03:06  176328kN
>>1.gxf4--
>>  -+  (-2.09)   Depth: 15/37   00:06:25  368131kN
>>1.gxf4-- Qxf4 2.Kh1 Rg5 3.f3 Bh5 4.Rg2 exf3 5.Rxg5 f2 6.Qd3+ g6
>>  -+  (-3.03)   Depth: 15/38   00:10:17  576496kN
>>
>>(W,  15.08.2001)
>
>For comparison analysis of Deep Fritz on p800(64 Mbytes hash)
>Deep Fritz searched for more than 10 hours at depth 17 but
>it still looks at f3.
>
>Note that Deep fritz finds fail low for gxf4 in less than 10 minutes
>and it probably means that with the best hardware Deep Fritz can
>find f3 at tournament time control.
>
>New position
>8/p4bpk/7p/3rq3/3Npp2/PPQ3P1/3R1PKP/8 w - - 0 1
>
>Analysis by Deep Fritz:
>
>1.gxf4--
>  ³  (-0.50)   Depth: 1/3   00:00:00
>1.gxf4--
>  ³  (-0.50)   Depth: 1/3   00:00:00
>1.h3!
>  ³  (-0.28)   Depth: 1/10   00:00:00
>1.h3! f3+ 2.Kg1
>  =  (-0.25)   Depth: 1/10   00:00:00
>1.Kg1!
>  =  (-0.19)   Depth: 1/10   00:00:00
>1.Kg1! fxg3
>  =  (0.00)   Depth: 1/10   00:00:00
>1.Kg1 e3
>  ³  (-0.44)   Depth: 2/14   00:00:00
>1.Rd1!
>  ³  (-0.34)   Depth: 2/14   00:00:00
>1.Rd1! f3+
>  ³  (-0.28)   Depth: 2/14   00:00:00
>1.Rd1 Qh5 2.Qe1 f3+ 3.Kg1
>  ³  (-0.41)   Depth: 3/13   00:00:00  3kN
>1.h3!
>  ³  (-0.37)   Depth: 3/15   00:00:00  4kN
>1.h3! f3+
>  ³  (-0.34)   Depth: 3/15   00:00:00  5kN
>1.gxf4!
>  ³  (-0.31)   Depth: 3/16   00:00:00  6kN
>1.gxf4 Qxf4 2.Qe3 Qg4+ 3.Qg3 Qh5
>  =  (-0.25)   Depth: 4/14   00:00:00  7kN
>1.gxf4 Qxf4 2.Qe3 Qg4+ 3.Qg3 Qh5 4.Kg1
>  ³  (-0.31)   Depth: 5/15   00:00:00  20kN
>1.gxf4 Qxf4 2.Qe3 Qg4+ 3.Qg3 Qh5 4.Kg1 a6
>  ³  (-0.31)   Depth: 6/17   00:00:00  40kN
>1.gxf4 Qxf4 2.Qe3 Qg4+ 3.Qg3 Qh5 4.Qe3 Qg6+ 5.Qg3 Qf6
>  ³  (-0.31)   Depth: 7/19   00:00:00  83kN
>1.gxf4 Qxf4 2.Qe3 Rg5+ 3.Kh1 Qg4 4.f4 exf3 5.Nxf3 Bd5
>  ³  (-0.37)   Depth: 8/23   00:00:00  152kN
>1.gxf4 Qxf4 2.Qe3 Rg5+ 3.Kh1 Qg4 4.f4 exf3 5.Nxf3 Bd5 6.Rf2
>  ³  (-0.34)   Depth: 9/25   00:00:00  417kN
>1.gxf4--
>  ³  (-0.66)   Depth: 10/28   00:00:01  801kN
>1.gxf4-- Qxf4 2.Qe3 Rg5+ 3.Kf1 Qxh2 4.Qxe4+ Bg6 5.Qe3 Re5 6.Qf3 Be4
>  µ  (-0.91)   Depth: 10/28   00:00:01  1262kN
>1.gxf4 Qxf4 2.Qe3 Rg5+ 3.Kf1 Qxh2 4.Qxe4+ Bg6 5.Qe3 Re5 6.Qf3 Be4
>  µ  (-0.78)   Depth: 11/30   00:00:13  9723kN
>1.gxf4 Qxf4 2.Qe3 Rg5+ 3.Kf1 Qxh2 4.Qxe4+ Bg6 5.Qe3 Rg1+ 6.Ke2 Qh5+
>  µ  (-0.87)   Depth: 12/30   00:00:20  14667kN
>1.gxf4--
>  µ  (-1.19)   Depth: 13/32   00:00:47  33715kN
>1.gxf4-- Qxf4 2.Qe3 Rg5+ 3.Kh1 Qg4 4.f4 exf3 5.Qf2 Qf4 6.Nxf3 Bd5
>  -+  (-1.69)   Depth: 13/36   00:01:15  52680kN
>1.gxf4 Qxf4 2.Qe3 Rg5+ 3.Kh1 Qg4 4.f4 exf3 5.Qf2 Bd5 6.Rd1 Kg6
>  -+  (-1.78)   Depth: 14/35   00:04:39  199152kN
>1.gxf4--
>  -+  (-2.09)   Depth: 15/37   00:09:43  422090kN
>1.gxf4-- Qxf4 2.Kh1 Rg5 3.f3 Bh5 4.Rd1 Rd5 5.Re1 e3 6.Qc2+ Bg6
>  -+  (-2.78)   Depth: 15/40   00:14:51  635762kN
>1.f3!
>  -+  (-2.75)   Depth: 15/40   00:32:40  1427443kN
>1.f3! Bh5 2.g4 e3 3.Rd1 Bf7 4.b4 e2 5.Re1 Rxd4
>  -+  (-2.66)   Depth: 15/40   00:42:14  1841019kN
>1.f3 Bh5 2.g4 e3 3.Rd1 Bf7 4.b4 e2 5.Re1 Rxd4 6.Qc2+
>  -+  (-2.66)   Depth: 16/42   00:59:57  2619083kN
>1.f3--
>  -+  (-2.97)   Depth: 17/42   01:45:08  4599019kN
>
>(Blass, Tel-aviv 16.09.2001)
>
>Uri

Look at the eval at the top.  That's from Deep Fritz on my 2x1.4Ghz.

In :54 seconds gxf4 fails low.  And 10 minutes later, DF still hasn't found f3.



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