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Subject: Re: Shredder 7.0.4

Author: Slater Wold

Date: 16:39:56 10/07/03

Go up one level in this thread


On October 07, 2003 at 03:51:16, Gordon Rattray wrote:

>On October 06, 2003 at 23:02:45, Slater Wold wrote:
>
>>[D]r4r2/pq1b1pp1/1pn1p2k/2ppPnNP/P2P2Q1/2P5/2P2PP1/R1B2RK1 w - - 0 17
>>
>>Nxf7!!  Beautiful...
>
>
>Shredder 7.0.4
>
>1.Nxf7+ Kh7 2.Qg6+ Kg8 3.Ng5 Rfe8 4.Qh7+ Kf8 5.g4 Red8 6.gxf5 cxd4 7.Nxe6+ Bxe6
>8.fxe6 dxc3 9.Qh8+ Ke7 10.Qxg7+ Kxe6 11.Qxb7 Rab8 12.Qxc6+
>  +-  (1.44)   Depth: 15/50   00:09:50  304623kN
>1.Nxf7+ Kh7 2.Qg6+ Kg8 3.Ng5 Rfe8 4.Qh7+ Kf8 5.g4 Red8 6.gxf5 cxd4 7.Nxe6+ Bxe6
>8.fxe6 dxc3 9.Qh8+ Ke7 10.Qxg7+ Kxe6 11.Qxb7 Nd4 12.Rd1 Rg8+ 13.Kh2
>  +-  (1.79)   Depth: 15/50   00:10:13  315990kN
>1.Nxf7+ Kh7 2.Qg6+ Kg8 3.Ng5 Rfe8 4.Qh7+ Kf8 5.g4 Nh6 6.Qh8+ Ng8 7.Nh7+ Kf7 8.g5
>Nge7 9.g6+ Nxg6 10.Ng5+ Ke7 11.Qxg7+ Kd8 12.hxg6 Qa6 13.Qf7 Qe2 14.Nf3 Rh8 15.g7
>  +-  (3.03)   Depth: 15/50   00:14:18  445795kN
>1.Nxf7+ Kh7 2.Qg6+ Kg8 3.Ng5 Rfe8 4.Qh7+ Kf8 5.g4 Nh6 6.Qh8+ Ng8 7.Nh7+ Kf7 8.g5
>Nge7 9.g6+ Nxg6 10.Ng5+ Ke7 11.Qxg7+ Kd8 12.hxg6 Qa6 13.Nh7 cxd4 14.Nf6 Nxe5
>15.f4
>  +-  (3.28)   Depth: 16/54   00:16:00  497410kN
>1.Nxf7+ Kh7 2.Qg6+ Kg8 3.Ng5 Rfe8 4.Qh7+ Kf8 5.g4 Nh6 6.Qh8+ Ng8 7.Nh7+ Kf7 8.g5
>Nge7 9.g6+ Nxg6 10.Ng5+ Ke7 11.Qxg7+ Kd8 12.hxg6 Qa6 13.Nh7 Kc7 14.Nf6 Re7
>15.Qh6
>  +-  (3.46)   Depth: 16/54   00:18:08  568600kN
>1.Nxf7+ Kh7 2.Qg6+ Kg8 3.Ng5 Rfe8 4.Qh7+ Kf8 5.g4 Nh6 6.Qh8+ Ng8 7.h6 gxh6
>8.Nh7+ Ke7 9.Nf6 Qc8 10.Qg7+ Kd8 11.Nxe8 Bxe8 12.Qxg8 cxd4 13.Bxh6 dxc3 14.Ra3
>Ne7 15.Bg5
>  +-  (3.53)   Depth: 17/54   00:39:11  1219639kN
>1.Nxf7+ Kh7 2.Qg6+ Kg8 3.Ng5 Rfe8 4.Qh7+ Kf8 5.g4 Nh6 6.Qh8+ Ng8 7.h6 gxh6
>8.Nh7+ Ke7 9.Nf6 Qc8 10.Qg7+ Kd8 11.Nxe8 Bxe8 12.Qxg8 cxd4 13.Bxh6 dxc3 14.Ra3
>Na5 15.Rd1
>  +-  (3.78)   Depth: 18/54   00:55:10  1714437kN

Weird...

P4 3.0Ghz 256MB HT:

Shredder 7.04
r4r2/pq1b1pp1/1pn1p2k/2ppPnNP/P2P2Q1/2P5/2P2PP1/R1B2RK1 w - - 0 1

Analysis by Shredder 7.04:

1.Ng5xf7+ Kh6-h7 2.Qg4-g6+ Kh7-g8 3.Nf7-g5 Rf8-b8 4.d4xc5 Nc6-e7 5.Qg6-h7+
Kg8-f8 6.Qh7-h8+ Ne7-g8 7.Bc1-a3 Qb7-c8 8.c5xb6+ Nf5-e7
  ±  (1.33)   Depth: 15/39   00:04:23  123467kN
1.Ng5xf7+ Kh6-h7 2.Qg4-g6+ Kh7-g8 3.Nf7-g5 Rf8-b8 4.d4xc5 Nc6-e7 5.Qg6-h7+
Kg8-f8 6.Qh7-h8+ Ne7-g8 7.Bc1-a3 Qb7-c8 8.c5xb6+ Nf5-e7 9.b6xa7 Ra8xa7
  +-  (1.68)   Depth: 15/39   00:04:41  131485kN
1.Ng5xf7+ Kh6-h7 2.Qg4-g6+ Kh7-g8 3.Nf7-g5 Rf8-e8 4.Qg6-h7+ Kg8-f8 5.g2-g4
Nf5-h6 6.Qh7-h8+ Nh6-g8 7.Ng5-h7+ Kf8-f7 8.g4-g5 Ng8-e7 9.g5-g6+ Ne7xg6
10.Nh7-g5+ Kf7-e7 11.Qh8xg7+ Ke7-d8 12.h5xg6 Kd8-c7 13.d4xc5 Ra8-c8 14.c5xb6+
  +-  (3.15)   Depth: 15/50   00:16:13  457475kN

(,  07.10.2003)

Nxf7+ found on the same ply (15).

2x1.53Ghz nps: 516,310
P43.0 Ghz nps: 469,456

Yet mine found it over 5 minutes quicker.  The beauty of SMP!



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