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Subject: Re: Interesting Article...

Author: Will Singleton

Date: 09:23:19 05/08/03

Go up one level in this thread


On May 08, 2003 at 11:13:22, Brian Thomas wrote:

>This was posted on Chessbase's site -- this is page 7:
>
>http://www.xbitlabs.com/articles/editorial/display/chess_7.html
>
>Does any engine not play Ra6?
>
>Brian

[D]Rr6/5kp1/1qQb1p1p/1p1PpP2/1Pp1B3/2P4P/6P1/5K2 w - -

Analysis by Shredder 7:

1.Qxb6 Rxb6
  ²  (0.58)   Depth: 1/2   00:00:00
1.Qxb6 Rxb6 2.Ra7+ Be7
  ²  (0.67)   Depth: 2/6   00:00:00
1.Qd7+ Kg8 2.Ra7
  ±  (0.89)   Depth: 2/6   00:00:00
1.Qd7+ Kg8 2.Ra7
  ±  (0.89)   Depth: 2/8   00:00:00
1.Qd7+ Kg8 2.Ra7 Bf8
  ±  (1.14)   Depth: 3/7   00:00:00
1.Qd7+ Kg8 2.Ra7 Bf8 3.Qf7+ Kh8
  ±  (1.37)   Depth: 3/8   00:00:00
1.Qd7+ Kg8 2.Ra7 Bf8 3.Qf7+ Kh8
  ±  (1.37)   Depth: 4/9   00:00:00
1.Qd7+ Kg8 2.Ra7 Bf8 3.Qe6+ Kh8 4.Qxb6 Rxb6
  ±  (1.25)   Depth: 5/10   00:00:00
1.Qd7+ Kg8 2.Ra7 Bf8 3.Qe6+ Kh7 4.Qxb6 Rxb6 5.g4 Rd6
  ±  (1.19)   Depth: 6/13   00:00:00
1.Qd7+ Kg8 2.Ra7 Bf8 3.d6 Qxd6 4.Qf7+ Kh8 5.Bd5 e4 6.Bxe4
  ±  (1.12)   Depth: 7/15   00:00:00  31kN
1.Ra6 Qxc6 2.dxc6 Rd8 3.Ra7+ Kg8
  ±  (1.13)   Depth: 7/16   00:00:00  44kN
1.Ra6 Qxc6 2.dxc6 Kf8 3.Ra7 Rd8 4.Kf2
  ±  (1.34)   Depth: 7/23   00:00:00  61kN
1.Ra6 Qxc6 2.dxc6 Kf8 3.Ra7 Re8 4.g4 Rd8 5.Ke2 g6
  ±  (1.32)   Depth: 8/16   00:00:00  81kN
1.Ra6 Qxc6 2.dxc6 Kf8 3.Ra7 Rc8
  +-  (1.51)   Depth: 9/23   00:00:00  172kN
1.Qd7+ Kg8 2.Ra7 Bf8 3.d6 Kh8 4.Qf7 Rd8 5.Bd5 Qxd6 6.Qg8#
  +-  (1.52)   Depth: 9/23   00:00:00  199kN
1.Qd7+ Kg8 2.Ra7 Bf8 3.Qf7+ Kh7 4.d6 Qe3 5.Bd5 Qc1+ 6.Kf2 Qf4+ 7.Ke1 Qxf5 8.Qg6+
Qxg6
  +-  (1.53)   Depth: 9/25   00:00:00  253kN
1.Qd7+ Kg8 2.Ra7 Bf8 3.Qf7+ Kh8 4.d6 Qe3 5.Bd5 Qc1+ 6.Kf2 Qd2+ 7.Kf3 Qxc3+ 8.Kf2
e4 9.Qxf6 Qxf6
  ±  (1.28)   Depth: 10/27   00:00:01  379kN
1.Qd7+ Kg8 2.Ra7 Bf8 3.Qe6+ Kh7 4.Qxb6 Rxb6 5.g4 Bd6 6.Ke2 Bb8 7.Re7 Ra6
  ±  (1.20)   Depth: 10/27   00:00:01  517kN
1.Ra6 Qxc6 2.dxc6 Kf8 3.Ra7 Be7
  ±  (1.21)   Depth: 10/27   00:00:01  544kN
1.Ra6 Qxc6 2.dxc6 Kf8 3.Ra7 Be7 4.g4 Rd8 5.c7 Kf7 6.cxd8Q
  +-  (1.56)   Depth: 10/27   00:00:01  614kN
1.Ra6 Qxc6 2.dxc6 Kf8 3.Ra7 Re8 4.Rd7 Be7 5.Rb7 Bd6
  +-  (1.68)   Depth: 10/27   00:00:02  749kN
1.Ra6 Qxc6 2.dxc6 Kf8 3.Ra7 Rc8 4.Rb7 Rc7 5.Rxb5 Ra7 6.Rd5 Ra1+ 7.Ke2 Ke7
  +-  (1.90)   Depth: 11/28   00:00:03  1098kN
1.Ra6 Qxc6 2.dxc6 Kf8 3.Ra7 Rc8 4.Rb7 Rc7 5.Rxb5 Ra7 6.Bd5 Be7 7.Bxc4
  +-  (2.15)   Depth: 12/26   00:00:04  1814kN
1.Ra6 Qxc6 2.dxc6 Kf8 3.Ra7 Rc8 4.Rb7 Rc7 5.Rxb5 Ra7 6.Bd5 Be7 7.Bxc4 Ke8
  +-  (2.18)   Depth: 12/26   00:00:05  2011kN
1.Ra6 Qxc6 2.dxc6 Kf8 3.Ra7 Rc8 4.Rb7 Rc7 5.Rxb5 Ra7 6.Bd5 Ra1+ 7.Kf2 Ra2+ 8.Kf3
Rc2 9.Rb7 Rxc3+ 10.Ke4
  +-  (2.33)   Depth: 13/31   00:00:08  3471kN
1.Ra6 Qxc6 2.dxc6 Kf8 3.Ra7 Rc8 4.Rb7 h5 5.Rxb5 Ke7 6.Bd5 Rb8 7.Rxb8 Bc7
  +-  (2.34)   Depth: 14/35   00:00:14  5713kN
1.Ra6 Qe3 2.Qd7+ Kg8 3.Qxd6 Rf8 4.Qe6+ Kh8 5.Qe7 Rg8 6.Bf3 Qc1+ 7.Kf2 Qd2+ 8.Be2
Qf4+ 9.Kg1 Qe3+ 10.Kh2 Qxe2 11.Rxf6 gxf6 12.Qxf6+ Kh7 13.Qxh6+
  +-  (2.09)   Depth: 15/45   00:01:29  33972kN
1.Ra6 Qe3 2.Qd7+ Kg8 3.Qxd6 Rf8 4.Qe6+ Kh8 5.Qe7 Rg8 6.Bf3 Qc1+ 7.Kf2 Qd2+ 8.Be2
Qf4+ 9.Kg1 Qe3+ 10.Kh2 Qxe2 11.Rxf6
  +-  (1.59)   Depth: 15/45   00:02:16  51412kN
1.Ra6 Qe3 2.Qxd6 Re8 3.Qd7+ Re7 4.Qc6 Qxe4 5.d6 Qb1+ 6.Kf2 Qxf5+ 7.Kg1 Rd7
8.Qxb5 Qe6 9.Qc5
  ²  (0.49)   Depth: 15/45   00:04:18  93569kN
1.Qd7+ Kg8 2.Ra7 Bf8 3.Qe6+ Kh7 4.Qxb6 Rxb6 5.Kf2 Bxb4 6.cxb4 Rb7 7.Rxb7
  ²  (0.50)   Depth: 15/45   00:04:20  94479kN
1.Qd7+ Kg8 2.Ra7 Bf8 3.Qe6+ Kh7 4.Qxb6 Rxb6 5.Kf2 Bxb4 6.cxb4 Ra6 7.Rxa6
  ±  (0.85)   Depth: 15/45   00:04:22  95104kN
1.Qd7+ Kg8 2.Ra7 Bf8 3.Qf7+ Kh7 4.Ke2 Rd8 5.Qb7 Rb8 6.Qxb6 Rxb6 7.g4 Bd6 8.h4
Bb8
  ±  (1.20)   Depth: 15/45   00:05:06  110658kN
1.Qd7+ Kg8 2.Ra7 Bf8 3.Ke2 Kh7 4.g4 Qg1 5.Qc7 Qh2+ 6.Kd1 Qg1+ 7.Kd2 Qf2+ 8.Kc1
Qe1+ 9.Kb2 Qd2+
  ±  (1.11)   Depth: 16/46   00:08:20  178225kN
1.Qd7+ Kg8 2.Ra7 Bf8 3.Qf7+ Kh7 4.Ke2 Qg1 5.Qc7 Qb6 6.Qxb6 Rxb6 7.g4 Bd6 8.Kf3
Bb8 9.Ra8
  ±  (1.19)   Depth: 17/45   00:14:59  321142kN
1.Qd7+ Kg8 2.Ra7 Bf8 3.d6 Qe3 4.Qf7+ Kh8 5.Bd5 Qc1+ 6.Kf2 Qd2+ 7.Kg1 Qc1+ 8.Kh2
Qf4+ 9.g3 Qf2+ 10.Bg2 Rd8 11.Rc7 e4 12.d7 Qb6 13.Rc8
  +-  (1.43)   Depth: 18/52   00:31:23  678530kN




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