[Retros] Another improvement (7 gxh8N#)

Noam Elkies elkies at math.harvard.edu
Thu Dec 14 00:30:52 EST 2006

N.Dupont wrote:

>>> 1.Ph2-h4 Pf7-f5 2.Ph4-h5 Re8-f7 3.Ph5-h6 Dd8-e8 4.Ph6xg7 Ph7-h5

>>> 5.Th1-h3 Ph5-h4 6.Th3-g3 Ph4-h3 7.Tg3-g6 Ph3-h2 8.Pg7xh8=C

I answered:

>> This can be done in 6.5 rather than 7.5, e.g.

>> 1 h4 d6 2 h5 Bf5 3 h6 Be4 4 hxg7 f5 5 Rh6 Kf7 6 Rg6 Qe8 7 gxh8=N#

>> likewise in 7.0 with Black checkmating:

>> 1 d3 h5 2 Bf4 h4 3 Be5 h3 4 f4 hxg2 5 h3 Rxh3 6 Kf2 Rg3 7 Qe1 gxh1=S#

N.D. replies:

> Well done! Joint works by ND and NE ?

Thank you. Yes, clearly a joint work, though maybe Andrew Buchanan
is a co-author too -- you described your 7.5 move game as based on
one of his ideas, but I don't know how close a predecessor it is.


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