Author: James B. Shearer
Date: 17:43:56 09/18/00
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On September 18, 2000 at 17:28:56, Bruce Moreland wrote:
<snip>
>The above might have bugs. If not, it's the worst case with white to move, mate
>in 47. This looks like a harder case than the standard 8 x 8 board, since black
>can start out in a corner, constrain white for a bit, then evade to the center,
>since, I presume, the knight is too slow to catch black. In the 8 x 8 version,
>black starts out in the center in the worst case.
>
>KR vs K is a mate in 21, and KQ vs K is a mate in 12.
>
>I can't do a 9 x 9 board as easily as a 10 x 10 board, but I think it may be
>possible that you could have a "wrong" bishop in KNB vs K with that sized board,
>so it could be a draw in some cases.
>
>bruce
This is interesting. How about Q vrs R?
47 moves isn't as many as I would have guessed and makes me suspect you can
mate with B and N on any board with a corner of the right color. 12x12 would be
the next case to try.
James B. Shearer
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