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Subject: Re: Twin miniatures [by Werner Speckmann,1955] Mate in 17 and Mate in 13

Author: leonid

Date: 17:32:44 01/26/01

Go up one level in this thread

On January 26, 2001 at 09:06:27, Uri Blass wrote:

>On January 26, 2001 at 07:08:14, leonid wrote:
>>On January 26, 2001 at 06:55:42, José Antônio Fabiano Mendes wrote:
>>>   Hi Leonid!,I like miniatures better,so here are two of them[twins]:
>>>        Werner Speckmann,1955  Mate in 17
>>>        [D]8/p7/8/2p5/p3Q3/K7/2r5/1k6 w
>>>        Werner Speckmann,1955  Mate in 13
>>>        [D]8/8/4p3/2p5/p3Q3/K7/2r5/1k6 w
>>Thanks! And what is was, some creation of problems or some positions that
>>resulted from real chess championship?
>If you are interested in positions from human-human games there is no problem to
>find them.
>Here is one of them from my game when my opponent forgot to resign
>[D]6k1/3R4/3B4/5KP1/P1P5/1P2r3/8/8 w - - 0 1
>I played Rd8+ and only after Kf7(kh7 is slower in losing) g6+ my opponent
>Crafty evaluates Rd8+ as mate in 8.
>I could see the mate in 4 only when I played g6+

Finally I found the time (was very busy today) and looked by curiosity up to the
solution. Could find mate only by brute force search, since my selective was
useless here. Mate is 8 moves deep. It took pretty long time as well to solve.
36 min. AMD 400Mhz. Solver don't use hash.

Very interesting to see how mate is executed. Fine position.


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