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Subject: Re: Not too diffcult for computers

Author: Jeroen van Dorp

Date: 16:09:31 01/14/01

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A lot startup with finding it yet discarding it rapidly, most for Kc4 or R2d3
with assessment =.
Fritz and Junior 6 didn't find it, Hiarcs 7.32 was at a loss, as was Comet B27,
Nimzo 99 did, but assessed it as a draw and Crafty 17.14 CB native engine
calculated it, yet not "convincingly" winning:

[D]1r2k1r1/3p1p2/2bR1Bp1/p1K1P2p/5P1P/1P6/3R4/8 w - - 0 1

Analysis by Crafty 17.14:

1.Rxc6 dxc6
  -+  (-2.08)   Depth: 1/2   00:00:00
1.R6d3
  -+  (-1.68)   Depth: 1/2   00:00:00
1.R6d3
  =  (-0.04)   Depth: 1/2   00:00:00
1.R6d3 Rc8
  ³  (-0.30)   Depth: 2/5   00:00:00
1.R6d3 Rc8 2.Kd6
  =  (-0.20)   Depth: 3/5   00:00:00
1.R6d3 Rc8 2.Kd6 Rf8
  ³  (-0.27)   Depth: 4/7   00:00:00
1.R6d3 Rc8 2.Kd6 Be4 3.Rd4
  ³  (-0.26)   Depth: 5/10   00:00:00
1.R6d3 Rb5+ 2.Kd6 Be4 3.Rc3 Rb6+ 4.Kc5 Rc6+ 5.Kd4 Rxc3 6.Kxc3
  ³  (-0.34)   Depth: 6/12   00:00:00  21kN
1.R2d3 Be4 2.R3d4 Bf5 3.b4 Rxb4 4.Rxb4 axb4 5.Kxb4
  ³  (-0.31)   Depth: 6/12   00:00:00  36kN
1.Ra2 Rb5+ 2.Kd4 Rf8 3.Ra4 Bf3 4.Ra1
  ³  (-0.30)   Depth: 6/12   00:00:00  53kN
1.Ra2 Rxb3 2.Rxa5 Rc3+ 3.Kb4 Rf3 4.Rd4 Re3
  =  (-0.24)   Depth: 7/14   00:00:00  82kN
1.R2d3 Rc8 2.Kd4 Bg2 3.Ke3 Rc7 4.Kd4
  =  (-0.19)   Depth: 7/14   00:00:00  140kN
1.R2d3 Be4 2.R3d4 Bf5 3.Ra6 Rf8 4.Rxa5 Rxb3
  =  (-0.21)   Depth: 8/17   00:00:00  267kN
1.Ra2 Ra8 2.Ra3 Be4 3.Kd4 Bg2 4.Ra1 Bf3
  =  (-0.14)   Depth: 8/17   00:00:00  393kN
1.Ra2 Ra8 2.Ra3 Ra6 3.Kd4 Rf8 4.b4 a4 5.Ke3
  =  (-0.04)   Depth: 9/18   00:00:01  544kN
1.Ra2 Ra8 2.Ra3 Be4 3.Kb6 Bc2 4.Kb7 Be4+ 5.Kb6
  =  (0.00)   Depth: 10/18   00:00:02  961kN
1.Ra2 Rb5+ 2.Kd4 Rb4+ 3.Kc5 Rb5+
  =  (0.00)   Depth: 11/20   00:00:04  2310kN
1.Rxc6 dxc6 2.Kxc6 Kf8 3.Kc7 Ra8 4.Kb7 Re8 5.Rd5 Re6 6.Rxa5
  =  (0.14)   Depth: 11/20   00:00:05  2558kN
1.Rxc6 dxc6 2.Kxc6 Kf8 3.Kc7 Ra8 4.Rd5 a4 5.Kb7 Re8 6.bxa4 Re6
  ²  (0.32)   Depth: 12/21   00:00:05  2736kN
1.Rxc6 dxc6 2.Kxc6 Kf8 3.Kc7 Ra8 4.Rd5 Re8 5.Rxa5 Re6 6.Ra8+ Re8 7.Ra7 Re6 8.b4
  ²  (0.66)   Depth: 13/23   00:00:06  3284kN
1.Rxc6 dxc6 2.Kxc6 Kf8 3.Kc7 Ra8 4.Rd5 a4 5.bxa4 Re8 6.Kb7 Re6 7.Rd8+ Re8 8.Rd7
Re6
  ²  (0.66)   Depth: 14/25   00:00:07  3968kN
1.Rxc6 dxc6 2.Kxc6 Kf8 3.Kc7 Ra8 4.Rd5 Re8 5.Rxa5 Re6 6.Ra7 Re8 7.b4 Re6 8.b5
  ±  (1.04)   Depth: 15/25   00:00:10  5695kN
1.Rxc6 dxc6 2.Kxc6 Kf8 3.Kc7 Ra8 4.Rd8+ Rxd8 5.Kxd8 g5 6.fxg5 Rg6 7.Kc7 Ke8
8.Kb6 Kd7 9.Kxa5 Kc6 10.b4
  ²  (0.68)   Depth: 16/31   00:00:29  15712kN
1.Rxc6 dxc6 2.Kxc6 Kf8 3.Kc7 Ra8 4.Rd8+ Rxd8 5.Kxd8 g5 6.fxg5 Rg6 7.Kc7 Ke8
8.Kb6 Kd7 9.Kxa5 Kc6 10.b4
  ±  (1.08)   Depth: 17/31   00:00:41  22895kN
1.Rxc6 dxc6 2.Kxc6 Kf8 3.Rd5 Ra8 4.Kb7 Re8 5.Rxa5 Re6 6.Kc7 Re8 7.Ra7 Re6 8.b4
Re8 9.b5 Re6
  ±  (1.04)   Depth: 18/37   00:02:27  84345kN

(van Dorp, Utrecht 15.01.2001)



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