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Subject: Re: Can anyone calculate this to mate?

Author: Jeremiah Penery

Date: 00:43:59 04/02/00

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On April 01, 2000 at 08:17:25, Olaf Jenkner wrote:

>>>I put this position into Fritz6a running on an AMD750 with 384mb of ram and with
>>>all 4 piece endgames installed to the harddrive and it gave me Mate in 100 from
>>>the position in your diagram
>>>It did this in 1 minute 27 seconds!!
>>>take care
>>>Rory
>>
>>This is impossible. If black loses the first pawn after 20 moves, he will lose
>>the second one very quickly also (_certainly_ in under 10 moves), and from that
>>point a KNP vs K ending can be won in less than 20 moves. This is almost
>>certainly less than mate in 50.
>>
>>James
>Maybe it's mate in 25. It is definitely not a mate in 18, I calculated
>it with my own program not using tablebases in 3 hours. Perhaps I can
>go much deeper but in 2 hours I'm going to my holidays to the Netherlands
>for one week. I was told that there grow the tulips.
>Olaf

You could let it run for that week. :)

But seriously, the pawn is supposed to be taken on move 20, and the second pawn
shortly after (within 8 moves).  Mate certainly comes within 20 moves of that,
so the upper limit is probably about 45 - definitely more than 30, but probably
less than 50.

Jeremiah



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