Author: Hans van der Zijden
Date: 22:08:58 07/10/03
Go up one level in this thread
On July 10, 2003 at 23:06:47, Uri Blass wrote:
>On July 10, 2003 at 22:59:46, Helmut Conrady wrote:
>
>>On July 10, 2003 at 22:24:23, steven blincoe wrote:
>>
>>>
>>>WHITE:KF8,PG6,RH1
>>>BLACK:Kh8,Bg8,PG7,PH7
>>>
>>>white to move and Mate in 2
>>>
>>>why is this problem famous?
>>
>>1st try: Because you posted it here? :)
>>
>>2nd try: It was the first problem ever to solved by a computer (around 1953
>>IIRC). Solution time must have been a couple of minutes.
>>
>>Helmut
>
>I believe that a lot of programs can fail there because of null move problem.
>I do not think that your second guess is correct because mate in 1 problem
>probably was solved earlier by a computer.
>
>Uri
[D]5Kbk/6pp/6P1/8/8/8/8/7R w - -
It is a mate in two. 1.Rh6 B(any square) 2.Rxh7 ++
... gxh6 2.g7 ++
IIRC it took the computer 15 minutes.
Hans.
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