[Retros] rstan

[Francois Labelle]

You asked the same question in 2004! :)

See your post titled '"half" proof games' on
http://www.pairlist.net/pipermail/retros/2004-February/date.html
and the ensuing replies.

In particular, NDE provided an infinite game:

1. e4 ... 2. Qxh5 ... 3. Qxg6 ... 4. Qxf6 ... 5. Qxe5+ ... 6. Qxh8+ ...
7. Qe5+ ... 8. Qh8+ ... 9. Qe5+ ... and eventually something like
1009. Qe5+ ... 1010. d3 ... 1011. Kd2 ... 1012. Kc3 ... 1013. Qxh5 ...#

     François

On 09/30/2013 07:43 PM, Richard Stanley wrote:

>

> Related to games determined by their first and last moves is the 

> following well-known problem. In a game of chess White playes 1.f3 

> 2.Kf2 3.Kg3 4.Kh4, after which Black mates White (on Black's fourth 

> move). What are

> Black's moves?

>

> The solution is e5/e6, Qf6, Qxf3+, Be7, so not quite unique if indeed 

> this is the only solution. This suggests problems like the following: 

> what is the largest n such that if White's (or Black's) first n moves 

> are specified, then there is a unique game in which Black mates

> White (or White mates Black) after the specified moves? As an example 

> that such a problem is possible, but with no attempt to maximize n: 

> 1.e4 2.e5 3.Ke2.

>

> Richard

>

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