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Subject: Shredder 7 (not 7.04!)

Author: Harald Faber

Date: 08:13:05 10/27/03

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On October 26, 2003 at 15:47:32, Gerd Isenberg wrote:

>Thanks to Theo van der Storm,
>the CSNV-organisers, arbiters and all participants!
>
>A great and thrilling Dutch Open Computer Chess Tournament 2003.
>
>Congratulations  to the winner Ruffian and the very courageously team!
>Perola, Djordje, Johan, Frank and Leo!
>Good luck and all the best for the commercial career.
>
>Congratulations also to Johan and "The King" for the very impressive catch up
>during the second weekend. And of course to Cristophe's Chess Tiger for the
>third place.
>
>I'm rather impressed by The King's win against my IsiChess MMX in round 9.
>The King played just 19.Bd2 with a positive score (IIRC ~0.7), leaving the
>poisoned a3 pawn en-prise:
>
>[D]2r2rk1/pb3p1p/1p1bp1p1/n3N3/3P3q/P1PQ3P/B2B1PP1/R3R1K1 b - - ; am Bxa3
>
>Cheers,
>Gerd


The "normal" Shredder 7 takes 6 minutes (on XP1800+/64MB hash) to avoid the pawn
capture:

2r2rk1/pb3p1p/1p1bp1p1/n3N3/3P3q/P1PQ3P/B2B1PP1/R3R1K1 b - - 0 1

Analysis by Shredder 7:

1...Lxa3 2.Sf3 De7 3.Lh6 Lb2 4.Lxf8 Dxf8 5.Tad1 Lxc3
  =  (-0.17)   Tiefe: 9/23   00:00:01  435kN
1...Lxa3 2.Sg4 Le7 3.d5 Lxd5 4.Lxd5 Tfd8 5.c4 Dg5 6.Lxg5
  =  (0.07)   Tiefe: 10/29   00:00:07  1926kN
1...Lxa3 2.Sg4 Ld6 3.d5 Tfd8 4.Dd4 e5 5.Da4 De7 6.Sh6+ Kh8 7.c4
  ²  (0.31)   Tiefe: 11/27   00:00:12  3431kN
1...Tfd8 2.c4 Lxe5 3.Txe5 Txd4 4.Lxa5 Txd3 5.Lxb6
  ²  (0.30)   Tiefe: 11/28   00:00:32  8659kN
1...Tfd8 2.a4 Tc7 3.Tac1 Tdc8 4.c4 Sc6 5.Sf3 Dh5 6.Sg5 Dh4
  =  (0.21)   Tiefe: 11/28   00:00:39  10771kN
1...Tfd8 2.Sg4 Tc7 3.Sh6+ Kh8 4.c4 Lc5 5.dxc5 Txd3 6.Te4 Lxe4 7.Sxf7+
  ²  (0.33)   Tiefe: 12/33   00:01:12  19730kN
1...Lxa3 2.Sg4 Ld6 3.d5 h5 4.dxe6 Tcd8 5.exf7+ Kh7 6.Dxg6+ Kxg6 7.Se5+
  ²  (0.32)   Tiefe: 12/33   00:01:24  22928kN
1...Lxa3 2.Sg4 Ld6 3.Lh6 Tfe8 4.d5 Lc5 5.dxe6 f5 6.c4
  =  (0.09)   Tiefe: 12/33   00:01:34  25876kN
1...Lxa3 2.Sg4 Le7 3.d5 h5 4.Se5 Lc5 5.Te2 exd5 6.Lxd5 Lxd5
  =  (0.04)   Tiefe: 13/34   00:02:37  42643kN
1...Lxa3 2.Sg4 Le7 3.d5 h5 4.Txe6 fxe6 5.Dxg6+ Kh8 6.Dh6+ Kg8 7.Dxe6+ Kg7 8.g3
Dxg3+ 9.fxg3 Tf1+
  ²  (0.29)   Tiefe: 14/33   00:03:26  55379kN
1...Lxa3 2.Sg4 Le7 3.d5 Lc5 4.dxe6 Tcd8 5.exf7+ Kh8 6.De2 Dg3
  ²  (0.55)   Tiefe: 14/34   00:04:38  74661kN
1...Tfd8 2.Sg4 Tc7 3.Db5 Lc6 4.Dg5 Dxg5 5.Lxg5 Tdc8 6.Sh6+ Kg7 7.Lf6+ Kxf6
8.Sg4+ Ke7 9.Lxe6 fxe6 10.Txe6+ Kxe6
  ²  (0.54)   Tiefe: 14/39   00:06:03  97193kN




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