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Subject: Re: number of moves in position (problem solution)

Author: Heiner Marxen

Date: 08:13:51 09/21/99

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On September 20, 1999 at 20:07:30, leonid wrote:

>
>For those who really like some big number of moves in one position. One of
>my old positions for solving the mate. White have 113 moves and make
>mate in 5.
>
> -------------------------------------------
> |    |    |    |    |    |    |    |    |8
> |    |    |    | *R |    | *Q | *K | *Q |
>--------------------------------------------
> |    |    |    |    |    |    |    |    |7
> |    |    |    |    |    |  *Q| *Q | *Q |
>--------------------------------------------
> |    |    |    |    |    |    |    |    |6
> |    |    |    |    |    |    | *Q |    |
>--------------------------------------------
> |    |    |    |    |    |    |    |    |5
> |    |    |  N |    |    | *R |    |    |
>--------------------------------------------
> |    |    |    |    |    |    |    |    |4
> |    |    |    |    |    |    |    |    |
>--------------------------------------------
> |    |    |    |    |    |    |    |    |3
> |  Q |  Q |  Q |  Q |  Q |  Q |  Q | Q  |
>--------------------------------------------
> |   B|    |    |    |    |    |    |    |2
> |    |    |    |    |    |    |  Q |    |
>--------------------------------------------
> |    |    |    |    |    |    |    |  K |1
> |    |    |    |    |    |    |    |    |
>--------------------------------------------
>
> * - black color.
>
>Position created in 1996.

FEN: 3r1qkq/5qqq/6q1/2N2r2/8/QQQQQQQQ/B5Q1/7K w - -

 Qxf7+ Q6xf7 Bxf7+ Qfxf7 Qxd8+  Qe8    Qaa2+  Rf7    Qfxf7#

It is not free of duals, but it is not supposed to be so, right?
The key move Qxf7+ is unique.

Heiner

>Leonid.



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