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Subject: Re: is ECM1080 from ECMGCP correct?

Author: Uri Blass

Date: 22:51:12 10/28/05

Go up one level in this thread


On October 28, 2005 at 16:17:14, Rick Hagen wrote:

>On October 28, 2005 at 16:06:34, Rick Hagen wrote:
>
>>
>>1...d3+ 2.Kh1 Qf2 3.Rd1 [3.Qxd3 Bxe4-+] 3...d2! [3...Qc2? 4.Rg1 b1Q 5.Bxe8 Qba2
>>(5...Qxg1+ 6.Kxg1 Qd1+ 7.Kf2 Qd2+ 8.Kg3 Qg5+ 9.Kf2 d2 ***10.Qe7+*** Kh8=) 6.Qe7+ Kg8
>>7.Bxg6 Qcc4 8.g4 h4 9.Bh7+ Kh8 10.Bg6 Qg8 11.Qf6+ Qg7 12.Qd8+ Qgg8 13.Qf6+ =]
>>4.Qb4 Rd8 5.Qxb2+ Kh7 6.Qxd2 Qxd2 7.Rxd2 Bc6 8.Bxc6 Rxd2 9.Kg1 b4 10.Ba4 Ra2
>>11.Bb3 Ra3 12.Bd5 b3 13.Bxb3 [13.e5 b2 14.Be4 Ra4 15.Bd3 Rd4 16.Bc2 Rd1+ -+]
>>13...Rxb3-+
>
>should be 10.Qd7+ of course

Thanks for the analysis 3...d2 seem to be winning and it is a good test position
that may be even harder then finding 1...d3+.

New game,
[D]b3r3/3B2k1/3Q2p1/1p5p/4P3/3p1P2/1p3qPP/3R3K b - - 0 1

Analysis by Fruit 2.2:

3...Qc2 4.Qd4+ Kh7
  -+  (-1.48)   Depth: 1/15   00:00:00
3...Qc2 4.Qd4+ Kh7
  -+  (-1.48)   Depth: 2/15   00:00:00
3...d2 4.Qb4
  -+  (-2.09)   Depth: 2/15   00:00:00
3...d2 4.Qb4 b1Q 5.Qc3+ Kh7 6.Rxb1
  ³  (-0.27)   Depth: 3/15   00:00:00
3...Qc2 4.Qd4+ Kh7 5.Qg1
  -+  (-2.02)   Depth: 3/15   00:00:00
3...Qc2 4.Qd4+ Kh7 5.Qg1 Re5
  -+  (-1.65)   Depth: 4/15   00:00:00
3...Qc2 4.Qd4+ Kh7 5.Qg1 Re5 6.Qe1
  -+  (-1.80)   Depth: 5/15   00:00:00
3...Qc2 4.Qd4+ Kh7 5.Qg1 Re5 6.Qe1 d2
  -+  (-1.94)   Depth: 6/16   00:00:00  22kN
3...Qc2 4.Qd4+ Kh7 5.Qg1 Re5 6.Qf1 d2 7.Rb1 Bb7 8.Bxb5
  -+  (-2.03)   Depth: 7/18   00:00:00  50kN
3...Qc2 4.Qd4+ Kh7 5.Qg1 Re5 6.Qe1 Bd5 7.Kg1 d2
  -+  (-2.12)   Depth: 8/25   00:00:00  126kN
3...Qc2 4.Qd4+ Kh7 5.Qg1 Re5 6.Rb1 d2 7.Qf1 Qc1 8.Kg1 Qxf1+ 9.Kxf1 Bb7
  -+  (-2.31)   Depth: 9/25   00:00:00  249kN
3...Qc2 4.Rg1 Rg8 5.Bf5 gxf5 6.Qe7+ Kh6 7.Qf6+ Rg6 8.Qf8+ Rg7 9.Qf6+ Kh7
10.Qxf5+ Kh6 11.Qxb5
  -+  (-3.99)   Depth: 10/36   00:00:02  1667kN
3...Qc2 4.Rg1 Rg8 5.Qe7+ Kh6 6.Be6 Rg7 7.Qb4 d2 8.Qb3 Qxb3 9.Bxb3 Rc7 10.e5
  -+  (-3.27)   Depth: 11/36   00:00:03  2688kN
3...Qc2 4.Rg1 Rg8 5.Qe7+ Kh6 6.Be6 Rg7 7.Qb4 d2 8.Qb3 Qxb3 9.Bxb3 Rc7 10.e5 Rc1
  -+  (-3.50)   Depth: 12/37   00:00:06  4636kN
3...Qc2 4.Rg1 Rg8 5.Qe7+ Kh6 6.g4 Rg7 7.Qe8 b1Q 8.Qh8+ Kg5 9.Qxg7 Qbb2 10.gxh5+
Kf4 11.Qf8+ Ke3 12.Re1+ Kd2
  -+  (-3.29)   Depth: 13/45   00:00:12  9089kN
3...Qc2 4.Rg1 Rg8 5.Qe7+ Kh6 6.g4 Rg7 7.Qe8 b1Q 8.Qh8+ Kg5 9.Qxg7 Qbb2 10.gxh5+
Kf4 11.Rg4+ Kxf3 12.Qf8+ Ke3 13.Qf4+ Kd4 14.hxg6
  -+  (-3.27)   Depth: 14/49   00:00:25  19443kN
3...Qc2 4.Rg1 b1Q 5.Bxe8 Qba2 6.Qxg6+ Kf8 7.Bxb5 Qf7 8.Qd6+ Kg8 9.Bxd3 Qcc7
10.Qh6 Qcf4 11.Qb6 Bb7
  µ  (-1.11)   Depth: 15/53   00:01:30  71292kN
3...d2 4.Qb4 Rd8 5.Qxb2+ Kh6 6.Qxd2+ Qxd2 7.Rxd2 Bc6 8.Bxc6 Rxd2 9.h4 b4 10.Bd5
Kg7 11.Kg1 Kf6 12.Kf1
  -+  (-1.58)   Depth: 15/53   00:02:07  100084kN

(,  29.10.2005)

New game,
[D]b3r3/q2B2k1/3Q2p1/1p5p/3pP3/5P2/1p4PP/5RK1 b - - 0 1

Analysis by Fruit 2.2:

1...d3+ 2.Kh1
  -+  (-1.53)   Depth: 1/4   00:00:00
1...d3+ 2.Kh1 Qf2 3.Qxd3
  ³  (-0.34)   Depth: 2/10   00:00:00
1...Rf8 2.Bxb5
  ³  (-0.53)   Depth: 2/10   00:00:00
1...Rf8 2.Qe5+ Rf6 3.Qe7+ Rf7 4.Qe5+ Kh7 5.Bxb5
  ³  (-0.53)   Depth: 3/11   00:00:00
1...Rf8 2.Qe7+ Rf7 3.Qe5+ Kh7 4.Bxb5
  ³  (-0.53)   Depth: 4/13   00:00:00
1...Rf8 2.Rd1 Qa4 3.Qe7+ Rf7 4.Qe5+ Rf6 5.Qe7+ Kh6
  ³  (-0.57)   Depth: 5/16   00:00:00
1...Rf8 2.Bxb5 Rc8 3.Qb4 d3+ 4.Kh1 Rc2 5.Bxd3
  ³  (-0.47)   Depth: 6/17   00:00:00  58kN
1...Rf8 2.Bxb5 Rf6 3.Qb4 Bxe4 4.Qxb2 d3+ 5.Rf2
  µ  (-0.74)   Depth: 7/22   00:00:00  136kN
1...Rf8 2.Rd1 Rf6 3.Qe7+ Rf7 4.Qe5+ Kh7 5.Bxb5 Qa2 6.Bd3
  ³  (-0.55)   Depth: 8/23   00:00:00  278kN
1...Rf8 2.Qe7+ Rf7 3.Qe5+ Kh7 4.Bxb5 d3+ 5.Kh1 Qe3 6.Qxb2 Bxe4 7.Rc1
  ³  (-0.61)   Depth: 9/27   00:00:01  610kN
1...Rf8 2.Bxb5 Rc8 3.Qb4 Rc2 4.Bd3 Rc3 5.Qb5 Bc6 6.Qe5+ Kh7
  ³  (-0.66)   Depth: 10/30   00:00:02  1352kN
1...Rf8 2.Bxb5 Rc8 3.Qb4 Rc2 4.Bd3 Rc3 5.Bb5 d3+ 6.Kh1 Qa3 7.Qd4+ Kh7
  ³  (-0.69)   Depth: 11/40   00:00:03  2491kN
1...Rf8 2.Bxb5 Rb8 3.Bd3 Rb3 4.Bb1 Rc3 5.e5 d3+ 6.Kh1 Qa3 7.Qd7+ Kh6 8.e6
  µ  (-0.99)   Depth: 12/40   00:00:07  5314kN
1...Rf8 2.Bxb5 Rb8 3.Bd3 Rb3 4.Bb1 Rc3 5.Qb4 d3+ 6.Kh1 Qa3 7.Qd4+ Kh7 8.Rd1 Rc1
9.Qd7+ Kh6
  µ  (-0.95)   Depth: 13/40   00:00:11  8210kN
1...Rf8 2.Bxb5 Rc8 3.Qb4 Bxe4 4.Qxb2 Rc2 5.Qb4 d3+ 6.Kh1 Qc5 7.Qxe4 Qxb5 8.Ra1
Kh6
  µ  (-0.79)   Depth: 14/40   00:00:25  18806kN
1...d3+ 2.Kh1 Qf2 3.Rd1 Qc2 4.Rg1 Rg8 5.Qe7+ Kh6 6.Be6 Rg7 7.Qb4 d2 8.Qb3 Qxb3
9.Bxb3 Rc7 10.e5
  -+  (-3.27)   Depth: 14/45   00:00:37  28041kN
1...d3+ 2.Kh1 Qf2 3.Rd1 Qc2 4.Rg1 Rg8 5.Qe7+ Kh6 6.Be6 Rg7 7.Qb4 d2 8.Qb3 Qxb3
9.Bxb3 Rc7 10.e5 Rc1
  -+  (-3.50)   Depth: 15/45   00:00:45  34260kN

(,  29.10.2005)

Uri



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