[Retros] 7 Ka3#
elkies at math.harvard.edu
Fri Jan 1 00:42:41 EST 2016
Meanwhile, Chessbase's "Christmas Puzzles" brings news of a new example
of a game reconstructible from it's final move, found by Stuart Rachels:
(I see that it's already on F.Labelle's page
together with confirmation that it's new and has a unique solution).
More information about the Retros