[Retros] FW: FW: distance-PG-
elkies at math.harvard.edu
Sat Sep 10 21:56:32 EDT 2016
Nicolas Dupont <Nicolas.Dupont at univ-lille1.fr> writes:
> Without ep (nor final checkmate), my best bound is reached via the
> following sequence:
> 1. Pe2-e4 Ph7-h5 2. Dd1xh5 Pa7-a5 3. Dh5xa5 Th8xh2
> 4. Da5xc7 Th2-h8 5. Th1xh8 Ta8xa2 6. Dc7-h2 Ta2-a8
> 7. Ta1-a6 Dd8-a5 8. Ta6-h6 Da5-h5 9. Ff1-a6 Dh5-d1
> (63,23,0) in 9.0 => move-length average a bit over 5.30.
This fine record is also tantalizingly close to checkmate.
Does it remain sound if the final three moves are changed to
7. Ta1-a7 Dd8-a5 8. Ff1-a6 Da5-h5 9. Re1-f1 Dh5-d1#
? This loses 5 units (last three White moves are (7,5,0) instaead of
(12,5,0) but still comes to (58,23,0) = 90.52691... which makes the
per-(half-)move average 5.02927... One might even try to make the
7th move Ta1xa8, raising the orthogonal count from 58 to 59 and the
average to 5.084828..
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