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Subject: Re: Testposition- king attack

Author: Slater Wold

Date: 17:06:28 10/21/01

Go up one level in this thread


On October 21, 2001 at 17:53:03, Andrew Smith wrote:

>I hope this diagram works...
>
>[D]r1bk3r/1pp2pp1/p2p1n1p/5q2/8/4BN2/PPPQ1PPP/3RR1K1 w - -
>
>How long does it take your program to find the strong move Bb6! ?

3 minutes a move:


Deep Junior 7 - W,S
r1bk3r/1pp2pp1/p2p1n1p/5q2/8/4BN2/PPPQ1PPP/3RR1K1 w - - 0 1

Analysis by Deep Junior 7:

1.h3 Re8
  =  (0.12)   Depth: 3   00:00:00
1.Qc3 Bd7 2.Qc4
  ²  (0.31)   Depth: 6   00:00:00  1kN
1.Qc3 Bd7 2.Qc4
  ²  (0.31)   Depth: 6   00:00:00  1kN
1.Qc3 Bd7 2.Qc4
  ²  (0.31)   Depth: 6   00:00:00  1kN
1.Qc3 Bd7 2.Qc4
  ²  (0.31)   Depth: 6   00:00:00  1kN
1.Bd4 Re8 2.Bxf6+ Qxf6 3.Rxe8+ Kxe8
  ²  (0.33)   Depth: 6   00:00:00  8kN
1.Bd4 Be6 2.Bxf6+ Qxf6 3.Qb4 Kc8
  ²  (0.33)   Depth: 9   00:00:00  34kN
1.Qc3 Be6 2.Nd4 Qh5 3.Qb4 Kc8
  ²  (0.34)   Depth: 9   00:00:00  49kN
1.Bb6!
  ²  (0.63)   Depth: 9   00:00:00  200kN
1.Bb6! cxb6 2.Qxd6+ Bd7 3.Ne5 Re8 4.Nxf7+ Kc8 5.Rxe8+ Nxe8 6.Qe7 Nf6
  ±  (1.34)   Depth: 9   00:00:01  1599kN
1.Bb6 cxb6 2.Qxd6+ Bd7 3.Ne5 Qe6 4.Re3 Qxd6 5.Nxf7+ Kc7 6.Rxd6 Rhd8
  ±  (0.76)   Depth: 12   00:00:03  6991kN
1.Bb6!
  ±  (1.06)   Depth: 15   00:00:26  58973kN
1.Bb6 cxb6 2.Qxd6+ Bd7 3.Qxb6+ Kc8 4.Re5 Qf4 5.Qd6 Qa4 6.Rc5+ Bc6 7.Rd4 Ne4
8.Qd7+ Kb8 9.Rxa4 Bxd7 10.Rxe4
  ±  (1.06)   Depth: 17   00:02:33  318082kN
1.Bb6 cxb6 2.Qxd6+ Bd7 3.Qxb6+ Kc8 4.Re5 Qf4 5.Qd6 Qa4 6.Rc5+ Bc6 7.Rd4 Ne4
8.Qd7+ Kb8 9.Rxa4 Bxd7 10.Rxe4
  ±  (1.06)   Depth: 17   00:04:23  551794kN

(W,  21.10.2001)

Shredder 5.32 - W,S
r1bk3r/1pp2pp1/p2p1n1p/5q2/8/4BN2/PPPQ1PPP/3RR1K1 w - - 0 1

Analysis by Shredder 5.32:

1.Bf4 Re8
  +-  (1.59)   Depth: 1/2   00:00:00
1.Bf4 Re8 2.Ne5
  ±  (1.18)   Depth: 2/4   00:00:00
1.Bf4 Re8 2.Ne5
  ±  (1.18)   Depth: 2/4   00:00:00
1.Bf4 Re8 2.Ne5
  ±  (1.11)   Depth: 3/6   00:00:00
1.Bf4 Re8 2.Ne5 Be6
  ±  (0.90)   Depth: 4/8   00:00:00
1.Bf4 Re8 2.Ne5 Bd7 3.Qd4 Qxc2 4.Nxd7 Kxd7 5.Rxe8 Nxe8 6.Qxd6+ cxd6 7.Bxd6
  ²  (0.65)   Depth: 5/10   00:00:00
1.Bf4 Re8 2.Ne5 Bd7 3.Nxf7+ Kc8
  ²  (0.57)   Depth: 5/10   00:00:00
1.Qc3 Qxf3 2.Rxd6+ cxd6 3.gxf3
  ²  (0.58)   Depth: 5/10   00:00:00
1.Qc3 Re8 2.Rxd6+ Ke7 3.Bf4+ Be6
  ±  (0.93)   Depth: 5/10   00:00:00
1.Qc3 Be6 2.Nd4 Qg4 3.f3
  ±  (1.00)   Depth: 5/10   00:00:00
1.Qc3 Be6 2.Nd4 Qg6 3.Nxe6+ fxe6 4.Bf4 e5
  ±  (0.95)   Depth: 6/12   00:00:00  97kN
1.Qc3 Be6 2.Nd4 Nd5 3.Nxe6+ Qxe6 4.Qd4 Nxe3 5.Rxe3 Qg6
  ±  (1.19)   Depth: 7/14   00:00:00  182kN
1.Qc3 Be6 2.Nd4 Qh5 3.Nxe6+ fxe6 4.Bd4 Rf8 5.f3 Qf5
  ±  (1.00)   Depth: 8/16   00:00:00  360kN
1.Qc3 Be6 2.Nd4 Qh5 3.f3 Kd7 4.a4 Nd5 5.Qc5
  ±  (1.06)   Depth: 9/18   00:00:02  1310kN
1.Qc3 Be6 2.Nd4 Qh5 3.Nxe6+ fxe6 4.Qb3 Qf5 5.Bd4 Kc8 6.Bxf6 gxf6 7.Rxe6
  ±  (1.16)   Depth: 10/20   00:00:08  4110kN
1.Qc3 Be6 2.Nd4 Qh5 3.Nxe6+ fxe6 4.Bd4 Re8 5.f3 Qf5 6.Bf2 Rf8 7.Qc4
  ±  (0.95)   Depth: 11/22   00:00:16  8159kN
1.Qc3 Be6 2.Nd4 Qh5 3.Nxe6+ fxe6 4.Bd4 Re8 5.Bxf6+ gxf6 6.Qxf6+ Kc8 7.Rd4 Qa5
8.Rde4 Qg5 9.Qf7
  ±  (0.85)   Depth: 12/24   00:00:54  27581kN
1.Qc3 Be6 2.Nd4 Qg6 3.Nxe6+ fxe6 4.Qb3 Kd7 5.Bc5 Kc8 6.Qxe6+ Kb8 7.Be3 Qxc2 8.a3
Qxb2
  ²  (0.65)   Depth: 13/26   00:02:36  81508kN

(W,  21.10.2001)

Deep Fritz - W,S
r1bk3r/1pp2pp1/p2p1n1p/5q2/8/4BN2/PPPQ1PPP/3RR1K1 w - - 0 1

Analysis by Deep Fritz:

1.Nd4 Qg6
  =  (-0.09)   Depth: 2/9   00:00:00
1.Nd4 Qg6 2.c3
  =  (-0.12)   Depth: 3/7   00:00:00
1.Nd4 Qg6 2.c3
  =  (-0.12)   Depth: 3/7   00:00:00
1.Nd4 Qg6 2.c3
  =  (-0.12)   Depth: 3/7   00:00:00
1.Nd4 Qg6 2.c3
  =  (-0.12)   Depth: 3/7   00:00:00
1.Nd4 Qg6 2.c3
  =  (-0.12)   Depth: 3/7   00:00:00
1.Nd4 Qg6 2.c3
  =  (-0.12)   Depth: 3/7   00:00:00
1.Nd4 Qg6 2.c3 Re8
  ³  (-0.37)   Depth: 4/7   00:00:00  1kN
1.Nd4 Qg6 2.c3 Re8
  ³  (-0.37)   Depth: 4/7   00:00:00  1kN
1.Nd4 Qg6 2.c3 Re8
  ³  (-0.37)   Depth: 4/7   00:00:00  1kN
1.Nd4 Qg6 2.c3 Re8
  ³  (-0.37)   Depth: 4/7   00:00:00  1kN
1.Re2!
  ³  (-0.34)   Depth: 4/12   00:00:00  2kN
1.a3!
  ³  (-0.31)   Depth: 4/13   00:00:00  3kN
1.c4!
  ³  (-0.28)   Depth: 4/13   00:00:00  3kN
1.c4! Re8 2.c5 Ne4
  =  (-0.19)   Depth: 4/13   00:00:00  4kN
1.c4 Re8 2.c5 Ne4 3.Qd3
  =  (-0.25)   Depth: 5/15   00:00:00  8kN
1.Nd4!
  =  (-0.22)   Depth: 5/15   00:00:00  10kN
1.Nd4! Qg6
  =  (-0.09)   Depth: 5/15   00:00:00  11kN
1.Nd4--
  ³  (-0.41)   Depth: 6/18   00:00:00  19kN
1.Nd4--
  ³  (-0.41)   Depth: 6/18   00:00:00  21kN
1.c4!
  ³  (-0.37)   Depth: 6/18   00:00:00  34kN
1.c4! Re8 2.c5 Ne4 3.Qb4 Qg6
  ³  (-0.34)   Depth: 6/18   00:00:00  39kN
1.Qc3!
  ³  (-0.31)   Depth: 6/18   00:00:00  48kN
1.Qc3! Be6 2.Nd4 Qg6 3.Nxe6+ fxe6 4.Bd4
  =  (-0.25)   Depth: 6/18   00:00:00  56kN
1.Qc3 Be6 2.Nd4 Qg4 3.Nxe6+ fxe6 4.Rd4 Qg6
  ³  (-0.28)   Depth: 7/17   00:00:00  103kN
1.c4!
  =  (-0.25)   Depth: 7/17   00:00:00  125kN
1.c4 Re8 2.c5 Ne4 3.Qd4 Qg6 4.cxd6 cxd6 5.Qb6+ Kd7
  =  (-0.25)   Depth: 8/21   00:00:00  298kN
1.c4 Re8 2.c5 Ne4 3.Qd4 Qg6 4.cxd6 cxd6 5.Qb6+ Kd7 6.Bd4
  =  (-0.22)   Depth: 9/23   00:00:00  882kN
1.Qb4!
  =  (-0.19)   Depth: 9/26   00:00:01  2349kN
1.Qb4! Nd5 2.Qh4+ Nf6
  =  (0.00)   Depth: 9/29   00:00:02  3363kN
1.Qb4 Nd5 2.Qb3 Nxe3 3.Rxe3 Ra7 4.Ne5 Be6 5.Nc6+ Kd7 6.Rxe6 Kxc6
  =  (-0.06)   Depth: 10/31   00:00:05  6979kN
1.Qb4 Nd5 2.Qb3 Nxe3 3.Rxe3 Qf6 4.Ne5 Rf8 5.Qd5 Rb8 6.Rde1 Be6
  =  (0.00)   Depth: 11/27   00:00:07  11130kN
1.c4!
  =  (-0.12)   Depth: 11/29   00:00:10  15268kN
1.Qc3!
  =  (-0.09)   Depth: 11/35   00:00:14  20327kN
1.Qc3! Be6 2.Nd4 Qh5 3.Nxe6+ fxe6 4.Qb3 Kd7 5.Bd4 Qd5 6.c4 Qc6
  =  (0.00)   Depth: 11/35   00:00:15  22198kN
1.Qc3 Be6 2.Nd4 Qh5 3.Nxe6+ fxe6 4.Qb3 Kd7 5.Bd4 Qf5 6.Qg3 Qg5
  =  (-0.06)   Depth: 12/31   00:00:19  29213kN
1.c4!
  =  (-0.03)   Depth: 12/31   00:00:25  37224kN
1.c4! Bd7 2.c5 dxc5 3.Bxc5 Qxc5 4.Ne5 Kc8 5.Nxd7 Qf5 6.Re7 Ne4
  =  (0.00)   Depth: 12/35   00:00:31  45271kN
1.c4 Bd7 2.c5 dxc5 3.Bxc5 Re8 4.Qb4 Kc8 5.Rxe8+ Nxe8 6.Bd4 f6
  =  (-0.06)   Depth: 13/32   00:00:55  83547kN
1.Bb6!
  =  (-0.03)   Depth: 13/34   00:01:21  122261kN
1.Bb6! cxb6 2.Qxd6+ Bd7 3.Ne5 Qe6 4.Qd4 Kc8 5.Nc4 Qc6 6.Nxb6+ Kc7
  ²  (0.50)   Depth: 13/36   00:01:44  157256kN
1.Bb6 cxb6 2.Qxd6+ Bd7 3.Ne5 Qe6 4.Qb4 a5 5.Qb5 Re8 6.Kf1 Kc7
  ±  (0.72)   Depth: 14/34   00:02:21  213264kN

(W,  21.10.2001)


Crafty 18.12 - W,S
r1bk3r/1pp2pp1/p2p1n1p/5q2/8/4BN2/PPPQ1PPP/3RR1K1 w - - 0 1

Analysis by Crafty 18.12:

1.Bd4
  =  (0.12)   Depth: 1/5   00:00:00
1.Bd4 Ne4
  =  (-0.10)   Depth: 2/5   00:00:00
1.Nd4 Qe4
  =  (0.04)   Depth: 2/5   00:00:00
1.Nd4 Qd5 2.b3
  =  (0.25)   Depth: 3/7   00:00:00
1.Nd4 Qd5 2.f3 Qxa2
  =  (-0.01)   Depth: 4/9   00:00:00
1.Nd4 Qd5 2.b3 Re8 3.f3
  =  (0.12)   Depth: 5/14   00:00:00
1.Nd4 Qd5 2.b3 Re8 3.f3 Bf5
  =  (-0.19)   Depth: 6/14   00:00:00  59kN
1.Nd4 Qg6 2.f3 Re8 3.Nb3 Bh3 4.Nc5
  =  (-0.23)   Depth: 7/14   00:00:01  436kN
1.Nd4 Qg6 2.Bf4 Re8 3.Rxe8+ Nxe8 4.f3 Bh3 5.b3 Nf6
  ³  (-0.35)   Depth: 8/15   00:00:02  1749kN
1.Qc3 Be6 2.Nd4 Qh5 3.f3 Re8 4.Nxe6+ fxe6 5.Bc5 Qf5
  ³  (-0.34)   Depth: 8/15   00:00:03  2804kN
1.Qb4 Nd5 2.Qb3 Nxe3 3.Rxe3 Re8 4.Rxe8+ Kxe8 5.Nd4 Qe4 6.Qc4
  =  (-0.12)   Depth: 8/15   00:00:07  8121kN
1.Qb4 Nd5 2.Qh4+ f6 3.Qc4 Nxe3 4.Rxe3 Bd7 5.Nd4 Qg5 6.Rde1
  =  (-0.11)   Depth: 9/16   00:00:10  12076kN
1.Qb4 Nd5 2.Qb3 Nxe3 3.Rxe3 f6 4.Qc3 Bd7 5.Nd4 Qf4 6.f3
  =  (-0.20)   Depth: 10/19   00:00:18  21757kN
1.Qc3 Be6 2.Nd4 Qg4 3.f3 Qg6 4.Nxe6+ fxe6 5.Qb3 Kd7 6.Qxb7 Qxc2
  =  (-0.12)   Depth: 10/19   00:00:40  50741kN
1.Qc3 Be6 2.Nd4 Qh5 3.Nxe6+ fxe6 4.Qb3 Kd7 5.Bd4 Qf5 6.Qxb7 Rhb8 7.Qf3 Qxf3
8.gxf3
  =  (-0.14)   Depth: 11/20   00:00:57  72868kN
1.Bb6 cxb6 2.Qxd6+ Bd7 3.Qxb6+ Kc8 4.Re5 Qf4 5.Rc5+ Bc6 6.Rxc6+ bxc6 7.Qxc6+ Kb8
8.Qb6+ Kc8 9.Qc6+
  =  (0.00)   Depth: 11/20   00:01:34  122100kN
1.Bb6 cxb6 2.Qxd6+ Bd7 3.Qxb6+ Kc8 4.Re5 Qf4 5.Rc5+ Bc6 6.Rxc6+ bxc6 7.Qxc6+ Kb8
8.Qb6+ Kc8 9.Qc6+
  =  (0.00)   Depth: 12/21   00:02:00  157636kN

(W,  21.10.2001)

All engines had 256MB of hash, except Crafty.  It had 232MB.



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