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Subject: Re: Crazy Fritz7 found mate in 265 ;)

Author: Brian Katz

Date: 00:11:14 02/11/02

Go up one level in this thread


On February 10, 2002 at 20:11:25, K. Burcham wrote:

>On February 10, 2002 at 19:50:25, Albert Silver wrote:
>
>>On February 10, 2002 at 17:31:10, Aseldar Salautdinov wrote:
>>
>>>[D]8/R7/6kp/1Pp5/2P2K2/7P/p4P2/8 b - - 0 1
>>>
>>>Analysis by Fritz 7 (22.01.2002):
>>>
>>
>>>  +-  (#230)   Depth: 11/24   00:00:01  765kN
>>>63...h5!
>>>  +-  (#235)   Depth: 11/24   00:00:01  777kN
>>>63...h5!
>>>  +-  (#245)   Depth: 11/24   00:00:02  788kN
>>>63...h5!
>>>  +-  (#265)   Depth: 11/24   00:00:02  799kN
>>>63...h5!
>>>  +-  (#265)   Depth: 11/24   00:00:02  823kN
>>
>>I guess the question is: who can do better?
>>
>>                                   Albert
>
>hello Albert. not sure what you mean.
>but your program must be drug free to find this mate in 7.
>my fritz7 is not drug free, you can see by my other post with fritz7.
>here is shredder5, drug free.
>
> [D] 8/R7/6kp/1Pp5/2P2K2/7P/p4P2/8 b - -
>Shredder 5:  1000mhz
> 12.01	 0:01 	  -M7 	1...Kh5 2.b6 Kh4 3.b7 Kxh3 4.b8Q Kg2 5.Rxa2 h5 6.f3+ Kh3
>7.Qc8+ Kh4 8.Rh2+ (567.727) 288.4
> 13.01	 0:02 	  -M7 	1...Kh5 2.b6 Kh4 3.b7 Kxh3 4.b8Q Kg2 5.Rxa2 h5 6.f3+ Kh3
>7.Qc8+ Kh4 8.Rh2+ (770.550) 257.0
> 14.01	 0:03 	  -M7 	1...Kh5 2.b6 Kh4 3.b7 Kxh3 4.b8Q Kg2 5.Rxa2 h5 6.f3+ Kh3
>7.Qc8+ Kh4 8.Rh2+ (1.046.322) 277.3
> 15.01	 0:12 	  -M7 	1...Kh5 2.b6 Kh4 3.b7 Kxh3 4.b8Q Kg2 5.Rxa2 h5 6.f3+ Kh3
>7.Qc8+ Kh4 8.Rh2+ (3.478.157) 273.4
> 16.01	 0:21 	  -M7 	1...Kh5 2.b6 Kh4 3.b7 Kxh3 4.b8Q Kg2 5.Rxa2 h5 6.f3+ Kh3
>7.Qc8+ Kh4 8.Rh2+ (6.269.429) 298.0
> 17.01	 0:52 	  -M7 	1...Kh5 2.b6 Kh4 3.b7 Kxh3 4.b8Q Kg2 5.Rxa2 h5 6.f3+ Kh3
>7.Qc8+ Kh4 8.Rh2+ (16.375.154) 309.4
> 18.01	 1:49 	  -M7 	1...Kh5 2.b6 Kh4 3.b7 Kxh3 4.b8Q Kg2 5.Rxa2 h5 6.f3+ Kh3
>7.Qc8+ Kh4 8.Rh2+ (35.811.006) 327.9
>best move: Kg6-h5 time: 2:00.204 min  n/s: 330.048  nodes: 39.671.185  TB:
>34.950
>kburcham
New position
8/R7/6kp/1Pp5/2P2K2/7P/p4P2/8 b - - 0 1

Analysis by Crafty 18.13: Found in less than 10 seconds.
Crafty also gives full anlysis in all variations listed, where as Fritz 7 only
seems to do so on some lines.

1. +- (#7): 63...Kg6-h5 64.b5-b6 Kh5-h4 65.b6-b7 Kh4xh3 66.b7-b8Q Kh3-g2
67.Ra7xa2 Kg2-h3 68.Qb8-g8 Kh3-h2 69.Qg8-g3+ Kh2-h1 70.Ra2-a1#
2. +- (#7): 63...Kg6-f6 64.b5-b6 h6-h5 65.b6-b7 a2-a1Q 66.Ra7xa1 h5-h4 67.b7-b8Q
Kf6-g7 68.Ra1-a7+ Kg7-g6 69.Qb8-b6+ Kg6-h5 70.Ra7-h7#
3. +- (#7): 63...a2-a1Q 64.Ra7xa1 Kg6-f7 65.b5-b6 Kf7-e6 66.b6-b7 Ke6-f6
67.b7-b8Q Kf6-g7 68.Ra1-a7+ Kg7-g6 69.Qb8-e8+ Kg6-f6 70.Qe8-f7#
4. +- (#7): 63...a2-a1R 64.Ra7xa1 Kg6-f7 65.b5-b6 Kf7-e6 66.b6-b7 Ke6-f6
67.b7-b8Q Kf6-g7 68.Ra1-a7+
5. +- (#7): 63...a2-a1B 64.Ra7xa1 Kg6-f7 65.b5-b6 Kf7-e6 66.b6-b7 Ke6-f6
67.b7-b8Q Kf6-g7 68.Ra1-a7+
6. +- (#7): 63...a2-a1N 64.Ra7xa1 Kg6-f7 65.b5-b6 Kf7-e6 66.b6-b7 Ke6-f6
67.b7-b8Q Kf6-g7 68.Ra1-a7+
7. +- (#7): 63...h6-h5 64.b5-b6 Kg6-f6 65.b6-b7 a2-a1Q 66.Ra7xa1 h5-h4 67.b7-b8Q
Kf6-g7 68.Ra1-a7+ Kg7-g6 69.Qb8-b6+ Kg6-h5 70.Ra7-h7#
Regards
Brian



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