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Subject: Re: King Safety ?? [Shredder7 analysis]

Author: Kurt Utzinger

Date: 10:42:13 12/25/02

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On December 25, 2002 at 13:09:45, Sune Larsson wrote:

>
> [D]5rk1/1ppq1rb1/p2p1nn1/3Pp3/2P1Ppp1/PPN3P1/3BQPB1/2R2RK1 w - - 0 25
>
>
> This position happened in a blitzgame of mine vs CM 9000Utz12 (white).
> It's no longer a question of building a slow attack - instead it's already
> there, in full bloom. Or, another way to put it, white has nothing and
> black has everything. So, how do the programs evaluate such a position
> with some time to think?  A few results:
>
>
> CM 9000Utz12    25.Qd3   -0.15   Ply 14      64 Mb hash
> Shredder PB     25.Qd3   -0.28   Ply 14     128 Mb hash
> Hiarcs 8        25.Qd3   -0.55   Ply 13     128 Mb hash
> Fritz 8         25.Qd3   -0.59   Ply 14     128 Mb hash
> Ruffian         25.Qd3   -0.69   Ply 14     128 Mb hash
> Chess Tiger14   25.Bh1   -1.50   Ply 14      96 Mb hash
> GambitTiger 2   25.Qd3   -2.26   Ply 14      96 Mb hash
>
>
> It was with utmost effort that CM finally realized that it actually
> is *worse* in the diagram position... With a tiny -0.15. CM Utzinger
> has achived great results in comp-comp games and perhaps it's possible
> to adjust the settings in a way that CM sees the danger?! King Safety?
>
> I'm curious of the evals from new programs like Chess Tiger 15, Shredder 7
> and maybe also Schachfreund Utzinger's latest CM personality (a very promising
> one!)?!  The whole game below.

Utzinger,K - Shredder 7
5rk1/1ppq1rb1/p2p1nn1/3Pp3/2P1Ppp1/PPN3P1/3BQPB1/2R2RK1 w - - 0 1

Analysis by Shredder 7: [P4 1.8/64 MB hash]

1.gxf4 exf4 2.e5 dxe5
  =  (-0.01)   Tiefe: 1/2   00:00:00
1.gxf4 exf4 2.e5 dxe5
  =  (-0.01)   Tiefe: 3/13   00:00:00
1.gxf4 exf4 2.e5 dxe5
  =  (-0.01)   Tiefe: 3/13   00:00:00
1.gxf4 exf4 2.e5 dxe5
  =  (-0.01)   Tiefe: 3/13   00:00:00
1.gxf4 exf4 2.e5 dxe5
  =  (-0.01)   Tiefe: 3/13   00:00:00
1.gxf4 exf4 2.e5 dxe5
  =  (-0.01)   Tiefe: 3/13   00:00:00
1.gxf4 exf4 2.e5 dxe5
  =  (-0.01)   Tiefe: 3/13   00:00:00
1.gxf4 exf4 2.e5 dxe5
  =  (-0.01)   Tiefe: 3/13   00:00:00
1.gxf4 exf4 2.e5 dxe5
  =  (-0.01)   Tiefe: 3/13   00:00:00
1.gxf4 exf4 2.e5 dxe5
  =  (-0.01)   Tiefe: 3/13   00:00:00
1.gxf4 exf4 2.e5 dxe5
  =  (-0.01)   Tiefe: 3/13   00:00:00
1.gxf4 exf4 2.e5 dxe5
  =  (-0.01)   Tiefe: 3/13   00:00:00
1.gxf4 exf4 2.e5 dxe5
  =  (-0.01)   Tiefe: 3/13   00:00:00
1.gxf4 exf4 2.f3 g3 3.Dd3
  =  (-0.11)   Tiefe: 4/12   00:00:00
1.gxf4 Sxf4 2.Lxf4 exf4 3.Dd3 Te8
  ³  (-0.36)   Tiefe: 5/16   00:00:00
1.gxf4 Sxf4 2.Lxf4 exf4 3.f3 Te8 4.Dd3 gxf3 5.Lxf3
  ³  (-0.51)   Tiefe: 5/16   00:00:00
1.gxf4 Sxf4 2.Lxf4 exf4 3.f3 Te8 4.c5 dxc5
  ³  (-0.67)   Tiefe: 6/13   00:00:00
1.Dd3 f3 2.Lh1 Te8
  ³  (-0.66)   Tiefe: 6/13   00:00:00
1.Dd3 f3 2.Lh1 Sh5 3.De3 De7 4.Dg5 Dxg5 5.Lxg5
  ³  (-0.65)   Tiefe: 6/15   00:00:00
1.Dd3 Sh5 2.Lh1 fxg3 3.fxg3 Txf1+ 4.Txf1 Txf1+ 5.Kxf1 Sxg3+ 6.Dxg3 Df5+ 7.exf5
  ³  (-0.55)   Tiefe: 7/19   00:00:00  81kN
1.Lh1 Sh5 2.Dd3 fxg3 3.fxg3 Txf1+ 4.Txf1 Txf1+ 5.Kxf1 Df5+ 6.exf5 Sxg3+ 7.Dxg3
  ³  (-0.54)   Tiefe: 7/19   00:00:00  107kN
1.Lh1 f3 2.De3 Sh7 3.c5 Tc8 4.Tfe1
  ³  (-0.44)   Tiefe: 7/19   00:00:00  127kN
1.Lh1 De7 2.Dd1 f3 3.Lg5 Te8 4.Te1 Dd7
  ³  (-0.49)   Tiefe: 8/20   00:00:01  253kN
1.Lh1 Sh5 2.Dd3 c5 3.dxc6 bxc6 4.c5 dxc5 5.Dxd7 Txd7
  ³  (-0.55)   Tiefe: 9/25   00:00:02  474kN
1.Lh1 Sh5 2.Dd3 De7 3.b4 f3 4.De3 Tb8 5.c5 Tff8 6.cxd6 cxd6
  ³  (-0.55)   Tiefe: 10/28   00:00:04  981kN
1.Lh1 Sh5 2.Dd3 De7 3.b4 f3 4.De3 Tb8 5.c5 Tff8 6.cxd6 cxd6
  ³  (-0.55)   Tiefe: 11/29   00:00:08  1814kN
1.Lh1 Lh6 2.Dd1 Th7 3.gxf4 Sxf4 4.f3 gxf3 5.Dxf3 S6xd5 6.Sb5 axb5 7.Dg2+ Sxg2
8.Txf8+ Kxf8
  µ  (-0.80)   Tiefe: 12/28   00:00:29  6599kN
1.Lh1 Lh6 2.c5 Th7 3.Dd3 f3 4.cxd6 cxd6 5.Tfe1 Lxd2 6.b4 Lxc1
  µ  (-1.23)   Tiefe: 12/32   00:00:37  8530kN
1.Dd3 fxg3 2.Dxg3 Te8
  µ  (-1.22)   Tiefe: 12/32   00:00:38  8690kN
1.Dd3 fxg3 2.Dxg3 Te8 3.Tb1 Sh5 4.Dh2 g3 5.Dxh5 gxf2+ 6.Txf2 Dh3
  µ  (-0.87)   Tiefe: 12/32   00:00:39  9004kN
1.Dd3 Sh5 2.Lh1 De7 3.b4 Td8 4.b5 axb5 5.cxb5 f3 6.b6
  ³  (-0.52)   Tiefe: 12/37   00:01:28  19900kN
1.Dd3 f3 2.Lh1 Ta8 3.De3 Sh7 4.b4 Tff8
  ³  (-0.50)   Tiefe: 13/33   00:02:22  31844kN
1.Dd3 f3 2.Lh1 Lh8 3.Lh6 Th7 4.Lxf8 Txh1+ 5.Kxh1 Dh7+ 6.Lh6 Dxh6+ 7.Kg1 Dh3
8.Sb5 axb5 9.Ta1
  µ  (-0.75)   Tiefe: 14/30   00:03:04  41185kN
1.Dd3 f3 2.Lh1 Lh8 3.Lh6 Th7 4.Lxf8 Txh1+ 5.Kxh1 Dh7+ 6.Lh6 Dxh6+ 7.Kg1 Dh3
8.Sb5 axb5 9.c5
  µ  (-1.25)   Tiefe: 14/30   00:03:28  46863kN
1.Dd3 f3 2.Lh1 Lh8 3.c5 Th7 4.Sd1 Th5 5.Se3 Dh7 6.b4
  µ  (-1.32)   Tiefe: 14/34   00:03:53  52897kN
1.Dd1 fxg3 2.fxg3 Sh5 3.Txf7 Dxf7 4.Le3 Sxg3 5.Dxg4 Df2+
  µ  (-1.31)   Tiefe: 14/35   00:06:31  88982kN
1.Dd1 f3 2.Lh1 Lh8 3.Lh6 Th7 4.Lxf8 Txh1+ 5.Kxh1 Dh7+ 6.Lh6 Dxh6+ 7.Kg1 Dh3 8.c5
Dg2#
  µ  (-1.31)   Tiefe: 14/35   00:06:48  92856kN

(Utzinger, MyTown 25.12.2002)




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