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Subject: Re: Ooops! Re: Kc2 is a winning move.

Author: Steffen Jakob

Date: 03:50:19 03/05/99

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On March 05, 1999 at 06:41:55, Harald Faber wrote:

>On March 05, 1999 at 05:07:40, Steffen Jakob wrote:
>
>>>>>>>>Jouni, position #1 is a draw. Kc2 doesn´t win. I also noticed that other
>>>>>>>>positions have more than one solution.
>>>>>>>>
>>>>>>>>Greetings,
>>>>>>>>Steffen.
>>>>>>>
>>>>>>>This is the relevant position
>>>>>>>5k2/8/8/8/8/2P5/8/3K4 w - - 0 1
>>>>>>>Kc2 is winning.
>>>>>>>For example 1.Kc2 Ke7 2.Kb3 Kd6 3.Kb4 Kc6 4.Kc4
>>>
>>>>>The position that Jouni and Uri gave is a win -- mate in 22.
>>>>>
>>>>>Maybe you got the FEN wrong in your file, Steffen?
>>>>
>>>>Oooops, yes, it was a copy-paste bug!
>>>>I had
>>>>
>>>>k2/8/8/8/8/2P5/8/3K4 w
>>>>
>>>>instead of
>>>>
>>>>5k2/8/8/8/8/2P5/8/3K4 w
>>>>
>>>>I am sorry!
>>>>
>>>Hehe, I had this too. But it would be interesting to know how the position was
>>>interpreted with k2 instead of 5k2...
>>
>>Hi Harald,
>>
>>I had the king on a8, which is indeed a draw :-) The EPD file on my WWW-Page is
>>now corrected.
>>Steffen.
>
>Ka8...and your program didn't complain about the 2 instead of a needed 7? :-)

You are right... it should at least generate a warning. When Hossa sees the "/"
after the 2 it simply leaves all left squares on the rank empty.

Greetings,
Steffen.



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