[Retros] Chessbase 1999

[per olin]

The '=' many times refers to stalemate, in use by many magazines. If we would consider it to refer to 'draw', then the stipulation in the problem by Heinonen would be 'selfdraw in one move'. But it solves already after half a move...?


Joost de Heer kirjoitti 22.08.2013 kello 12:56:

> On Thu, August 22, 2013 11:29, per olin wrote:

> >

> > Dear retrofans,

> 

> > In Tehtäväniekka 4-5/2012 there was a very economical problem by Unto

> > Heinonen: Kh6 Dg6 pawnh5 - Kh8 Dg4 with the four stipulations 1#, 1=, s#1,

> > s=1. Is the fourth, selfstalemate in one move, incorrect for not being a

> > stalemate after 1.Dg8 K/Dxg8, but dead reckoning after 0.5 moves?

> 

> Not if you read the '=' as 'draw'.

> 

> IIRC Michel Caillaud published a h'='2 a few years ago in Strategems

>  that

> used 3-fold repetition using the history of the diagram position and the

> (forced) future of the final position.

> 

> Joost

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