Author: GuyHaworth
Date: 14:09:40 12/04/05
Not sure if this was mentioned on CCC before, but:
Eiko Bleicher (some time ago) using Marc Bourzutschky's GTBGEN sw to confirm
that there are no pawnless 6-man full-point mzugs.
It was close though. In 1995, Noam Elkies had put up position
[D] 8/8/8/8/2n5/1n6/R1N5/3K1k2
pointing out that it was a wtm loss in 1 and, with a wB on b1, a btm loss. But
without the extra wB, Black can reach a draw (" indicating 'unique move'):
1.... Nc5" 2.Nd4 ne3+" 3.Kd2 Kf2" 4.Kc3+ Kg3" 5.RA3 Kf4" ...
This suggests an interesting data-mining exercise:
Is there a 6-man pawnless half-point mzug where more than 5 unique moves are
required to stop it becoming a full-point mzug?
g
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