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

Author: leonid

Date: 13:08:19 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+

Good positions, but have you seen all those 8 moves for mate on the spot? Or was
you able to finding it after thinking 1 minute?

I could see only that my solver will never solve this position under 1 minutes
time. Selective search in 11 moves found nothing and brute force even in 6
jumped already to one minute.


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