Author: Laurens Winkelhagen
Date: 02:49:05 11/22/04
Go up one level in this thread
On November 21, 2004 at 19:49:42, Steve Coladonato wrote:
>On November 19, 2004 at 15:45:51, GuyHaworth wrote:
>
>>
>>Confirmed: Marc has done KRPKBP and Eugene has done 19+ 3-3p EGTs but not this
>>one.
>>
>>1-0 maxDTM = 166 wtm and 153 btm: 0-1 maxDTM = 103 wtm and 104 btm.
>>
>>g
>Guy,
>
>I'm not familiar with tablebases and I don't understand your score. I am
>reading it this way: maxDTM = Max depth to mate
> wtm = white to move
> btm = black to move
>What I don't understand is the 1-0 and 0-1 score. Could you explain it for me?
>
>Thanks.
>
>Steve
My guess:
Because there is a difference between the white and black side, it makes a
difference which side mates. The above score tells us that the biggest maxDTM is
when the white (KRP) is to move and to win.
wtw btw
wtm 166 103
btm 153 104
It seems logical that if black (KBP) is to win, then the mate should be shorter,
because one may not give white a chance to take the pawn with the rook.
Obviously this is easier when the pawn is closer to promotion.
One puzzling thing left is that it makes a big difference for white to mate if
black is to move or white is. One would expect only a difference of 1, not of
13. It probably has something to do with going over into a different tablebase?
Regards, Laurens
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