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Subject: Re: Test Position - Mate in 14

Author: Dieter Buerssner

Date: 17:45:15 01/19/02

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On January 19, 2002 at 17:40:05, David Rasmussen wrote:

>This is from Shredder - Chezzz from the first day of CCT:
>
>[D]3Q4/4q2p/1p1pNk2/3P2p1/6P1/7P/5P2/6K1 w - - 0 50
>
>The right move is Qh8+. Is there a shorter mate?
>
>00:00:41.44   15Mn 12/30/30 +MAT27 50. Qh8+ Kg6 51. Qg8+ Kf6
>                                   52. Qxg5+ Kf7 53. Qg7+ Ke8
>                                   54. Qg8+ Kd7 55. Qa8 Qf6
>                                   56. Qb7+ Ke8 57. Qc8+ Ke7
>                                   58. Qd8+ Kf7 59. Qf8+
>

Yace thinks, it is mate in 12 (or shorter): German piece letters. D->Q

  9.01	 0:41 	+14.45 	1.Dh8+ Kf7 2.Dg7+ Ke8 3.Dg8+ Kd7 4.Da8 Df6 5.Dc6+ Ke7
6.Dc7+ Ke8 7.Dc8+ Ke7 8.Dd8+ Kf7 9.Df8+ Kg6 10.Dg8+ Kh6 11.h4 gxh4 12.g5+ Kh5
13.Dxh7+ Kg4 14.gxf6 (4.824.474) 115.7
  9.26	 0:42 	+14.45 	1.Dh8+ Kf7 2.Dg7+ Ke8 3.Dg8+ Kd7 4.Da8 Df6 5.Dc6+ Ke7
6.Dc7+ Ke8 7.Dc8+ Ke7 8.Dd8+ Kf7 9.Df8+ Kg6 10.Dg8+ Kh6 11.h4 gxh4 12.g5+ Kh5
13.Dxh7+ Kg4 14.gxf6 (4.894.065) 115.6
 10.01	 0:51 	+14.85++ 	1.Dh8+ Kf7 2.Dg7+ Ke8 3.Dg8+ Df8 4.Dxf8+ Kd7 (6.035.580)
116.1
 10.01	 0:53 	+15.85++ 	1.Dh8+ Kg6 2.Dg8+ Kf6 3.Dxg5+ Kf7 4.Dg7+ Ke8 5.Dh8+ Kd7
6.Da8 Df6 7.Db7+ Ke8 8.Dc8+ Kf7 9.Df8+ Kg6 10.Dg8+ Kh6 11.g5+ Kh5 12.Dxh7+ Dh6
13.gxh6 b5 (6.195.533) 116.0
 10.01	 0:59 	+20.95++ 	1.Dh8+ Kg6 2.Dg8+ Kf6 3.Dxg5+ Kf7 4.Dg7+ Ke8 5.Dh8+ Kd7
6.Da8 Dxe6 7.Db7+ Ke8 8.dxe6 h5 9.Dd7+ Kf8 10.e7+ Kg7 11.e8D+ Kf6 12.gxh5
(6.783.673) 114.2
 10.01	 1:39 	  +M14 	1.Dh8+ Kg6 2.Dg8+ Kf6 3.Dxg5+ Kf7 4.Dg7+ Ke8 5.Dg8+ Kd7
6.Da8 Df6 7.Db7+ Ke8 8.f4 (11.520.135) 116.3
 10.26	 1:45 	  +M14 	1.Dh8+ Kg6 2.Dg8+ Kf6 3.Dxg5+ Kf7 4.Dg7+ Ke8 5.Dg8+ Kd7
6.Da8 Df6 7.Db7+ Ke8 8.f4 (12.273.257) 116.4
 11.01	 4:25 	  +M14 	1.Dh8+ Kg6 2.Dg8+ Kf6 3.Dxg5+ Kf7 4.Dg7+ Ke8 5.Dg8+ Kd7
6.Da8 Df6 7.Db7+ Ke8 8.Dc8+ Ke7 9.Dd8+ Kf7 10.Df8+ Kg6 11.Dg8+ Kh6 12.g5+ Kh5
13.Dxh7+ Dh6 14.Dxh6+ (33.094.795) 124.8
 11.26	 5:06 	  +M14 	1.Dh8+ Kg6 2.Dg8+ Kf6 3.Dxg5+ Kf7 4.Dg7+ Ke8 5.Dg8+ Kd7
6.Da8 Df6 7.Db7+ Ke8 8.Dc8+ Ke7 9.Dd8+ Kf7 10.Df8+ Kg6 11.Dg8+ Kh6 12.g5+ Kh5
13.Dxh7+ Dh6 14.Dxh6+ (38.572.281) 125.7
 12.01	13:29 	  +M12 	1.Dh8+ Kg6 2.Dg8+ Kf6 3.Dxg5+ Kf7 4.Dg7+ Ke8 5.Dg8+ Kd7
6.Da8 Df6 7.h4 h6 8.h5 Dxe6 9.Db7+ Kd8 10.dxe6 Ke8 11.Dd7+ Kf8 12.Df7+
(112.327.579) 138.7

Regards,
Dieter




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