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Subject: Re: a simple test position that is hard for Shredder and hiarcs7.32

Author: Ingo Bauer

Date: 07:00:40 01/04/02

Go up one level in this thread

Hi

>Shredder6 could not avoid Nxb5 even in 112 seconds
>based on the pgn of it's games against tiger aggresive.

This is what S6 thinks on a A1600+ with 256 MB. S6 needs 29 Seconds to avoid
Nxb5. On a P800 it should need around 1 min (little less).

Ingo

>[D]8/5rbk/6q1/1p1Q4/1PpP2p1/2N2p2/5PP1/3R2K1 w - - 0 1

Engine: Shredder 6
by Stefan Meyer-Kahlen

  8.01	 0:02 	-0.01 	1.Nxb5 g3 2.gxf3 gxf2+ 3.Kxf2 Qc2+ 4.Kg3 Qg6+ 5.Kf2 Qc2+
6.Kg3 Qg6+ 7.Kf2 Qc2+ (612.395) 279.2
  9.01	 0:04 	-0.01 	1.Nxb5 g3 2.gxf3 gxf2+ 3.Kxf2 Qc2+ 4.Kg3 Qg6+ 5.Kf2 Qc2+
6.Kg3 Qg6+ 7.Kf2 Qc2+ (1.255.226) 306.4
 10.01	 0:08 	-0.26--	1.Nxb5 g3 2.gxf3 Rf5 3.Qxc4 Rxf3 4.Kg2 Qe4 5.fxg3 Rd3+
6.Kg1 Rxd1+ 7.Qf1 (2.887.596) 334.4
 10.01	 0:10 	-0.76--	1.Nxb5 g3 2.gxf3 Rf5 3.Qxc4 Rxf3 4.Kg2 Qe4 5.fxg3 Rd3+
6.Kh3 Rxd1 7.Nd6 Qxd4 (3.686.650) 338.9
 10.01	 0:27 	-2.15 	1.Nxb5 Rf5 2.Qb7 g3 3.gxf3 Qh6 4.Kf1 Qh1+ 5.Ke2 Qxd1+
6.Kxd1 g2 7.Ke2 g1Q 8.Qe4 Qg6 9.Nd6 Rf8 10.Nxc4 Qxe4+ 11.fxe4 Bxd4 (9.714.038)
356.6
 10.02	 0:29 	-2.14++	1.Re1 fxg2 2.Kxg2 Qf5 3.Qxf5+ Rxf5 4.Ne4 Bxd4 5.Kg3 Rxf2
6.Kxg4 (10.582.050) 355.3
 10.02	 0:30 	-1.79++	1.Re1 fxg2 2.Kxg2 Qf5 3.Qxf5+ Rxf5 4.Ne4 Bxd4 5.Kg3 Kg6
6.Kxg4 Rd5 7.Re2 (10.802.444) 355.7
 10.02	 0:36 	-0.98 	1.Re1 fxg2 2.Kxg2 Qf6 3.Rf1 Qf5 4.Qc6 Rf6 5.Qb7 Qf3+ 6.Qxf3
gxf3+ 7.Kg3 (12.875.884) 352.2
 10.04	 0:38 	-0.97++	1.g3 Qf5 2.Qxb5 Qxb5 3.Nxb5 Rf5 4.Nc3 Bxd4 5.Ne4
(13.589.554) 351.7
 10.04	 0:39 	-0.97 	1.g3 Rf5 2.Qe4 Rh5 3.Qa8 Qh6 4.Qe4+ Kg8 5.d5 Bxc3 6.Qxg4+
Kh7 7.Qd7+ Kg6 8.Qe8+ Kf5 9.g4+ Kxg4 10.Qe6+ (13.961.952) 351.4
 10.06	 0:40 	-0.96++	1.Ne4 Rf5 2.Qd7 Rh5 3.Ng3 fxg2 (14.259.314) 350.7
 10.06	 0:41 	-0.69 	1.Ne4 Rf5 2.Qd7 Rh5 3.Ng3 Qc2 4.Re1 Qd2 5.Rb1 Rg5 6.Nf5
(14.686.167) 349.9
 10.19	 0:51 	-0.68++	1.Qe4 fxg2 2.Kxg2 Qxe4+ 3.Nxe4 Rd7 4.d5 Kg8 5.f3 gxf3+
6.Kxf3 Rf7+ 7.Ke3 Bh6+ 8.Ke2 Bd2 (17.744.055) 346.6
 10.19	 0:52 	-0.57 	1.Qe4 Qxe4 2.Nxe4 Rd7 3.d5 Kg8 4.gxf3 gxf3 5.d6 Kf7 6.Ng5+
Ke8 7.Nxf3 Bb2 (18.248.957) 347.0
 11.01	 0:55 	-0.81 	1.Qe4 fxg2 2.Kxg2 Qxe4+ 3.Nxe4 Rf4 4.Ng5+ Kg6 5.Ne6 Rf3
6.Nxg7 Kxg7 7.Kf1 g3 (19.229.894) 348.3
 11.05	 1:02 	-0.80++	1.Ne4 Rf5 2.Qd7 Rh5 3.Ng3 Qc2 4.Re1 Qd2 5.Nxh5 Qxb4 6.Kh2
fxg2 (21.802.308) 347.0
 11.05	 1:04 	-0.80 	1.Ne4 Rf5 2.Qd7 Rf4 3.gxf3 gxf3+ 4.Ng3 Rg4 5.Kf1 c3 6.Qf5
Bxd4 (22.353.678) 346.7
 12.01	 1:43 	-0.67 	1.Ne4 Rf5 2.Qb7 Rf4 3.Re1 fxg2 4.Kxg2 Qf5 5.Kg1 Kh8 6.Qb8+
Bf8 7.Qe8 Qd5 (35.438.582) 342.7
 13.01	 2:42 	-0.73 	1.Ne4 Rf5 2.Qb7 fxg2 3.Kxg2 Kg8 4.Ng3 Rf8 5.Qxb5 Qf7 6.f4
gxf3+ 7.Kf2 Rd8 8.Nf5 (55.880.933) 344.6
best move: Nc3-e4 time: 4:07.806 min  n/s: 351.744  CPU 99.2%  nodes: 87.160.957

• Re: a simple test position that is hard for Shredder and hiarcs7.32 Uri Blass 07:47:51 01/04/02
  • Re: a simple test position that is hard for Shredder and hiarcs7.32 Dieter Buerssner 09:05:17 01/04/02
    • Re: a simple test position that is hard for Shredder and hiarcs7.32 Uri Blass 11:33:47 01/04/02

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