von mark Kirtley
Teil 3, Probleemblad 2000, Einleitung
Once again, here are some shortest proof games (spg) that are short.
The solutions are no longer than 7.0 moves (given at the end of the
article, which is where you'll also find several composing challenges).
In Gianni's #1 the white Pawn at f4 arrives
there by two different routes - but that's just a grace note in this
In his #2 the two games that lead to the diagram
are not only striking but also strikingly dissimilar from each other.
His easy-to-solve but charming #3 is, I think,
the briefest an spg can be that has two equal-length solutions in which
the first black move (besides the first white move) is changed. The
previous article (PB 2000-2) made two composing challenges. One was
for a second example of a shorty with three solutions (not just variations
or twins), following Peter Wong's first-prizewinner quoted in that article.
As far as I know, this is still undone, even as a longer spg.
If any reader was hoping to see such a marvel, perhaps
#4 by the same composer will serve as lots of
consolation. The other challenge was for two switchbacks that capture
on the return move. Joost de Heer published an answer in the recent
september Probleemblad, with one white and one black switchback, and
Gianni's #5 has two white ones. Noam's
#6 also has something to show here.
I'll skip the introductions for the next five problems, except to
note that in Noam's #11 there is a tempo trick
not seen before in these articles, which is also true of the final three
problems. In #12 and #13
Michel employs a "displaced-capture" type of tempo loss. Michel is also
the one who devised the surprising tempo reversal for
Many thanks to Gianni, Michel, Noam, and Joost for their editing help
and/or permission to use their originals.