[Retros] Challenge

andrew buchanan andrew at anselan.com
Tue Dec 1 16:36:47 EST 2009

Hi Joost,

Sigh. It's not cooked - it depends on how you define the challenge.

Essentially the game I have chosen here is to find a position which in
the Tablebase shows one Win in 1, one Win in 2, one Win in 3 etc. And it was just a little position I threw together quickly to get the ball rolling.

My main driver here is that I can't think that a more rigid interpretation will allow you to reach n=11, which Juha claims.

I would really appreciate if Juha can intervene now to indicate exactly how he has interpreted his own challenge. I've had enough creative discord thanks.


----- Original Message ----
From: Joost de Heer <joost at sanguis.xs4all.nl>
To: retros at janko.at
Sent: Tue, December 1, 2009 8:09:53 PM
Subject: Re: [Retros] Challenge

On 12/01/2009 08:14 PM, andrew buchanan wrote:

> Hi Joost,


> Thanks for picking this up. The diagram was wrong (sorry), but in trying to repair it I have found a better position:


> 4k3/8/5K2/8/8/2Qp1b2/N7/8

> "#1", "#2", "#3", "#4", "#5", "#6", "#7"

#4-#7 are cooked. Both Qc7 and Qxd3 lead to an exact-#4, the exact-#5 is
even worse: Qd4/Qc7/Qxd3/Sb4.

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