[Retros] "half" proof games

Richard Stanley rstan at math.mit.edu
Fri Feb 6 11:40:08 EST 2004

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Noam Elkies gave some half proof games, such as

1 d3 ... 2 Bd2 ... 3 Ba5 ... 4 Bxd8 ... 5 Qc1 ...#.

This can be lengthened by a (non-thematic) prelude, e.g.,

1.g4 ... 2.gh5 ... 3.hg6 ... 4.g7 ... 5.gh8Q+ ...
6.Qxg8+ ... 7.Qxf8+ ... 8.d3 ... 9.Bd2 ... 10.Ba5 ...
11.B6d8 ... 12.Qc1 ...#

Richard

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