[Retros] Prenix (& Nix?)

[andrew buchanan]

Thanks Joost,


>> - If it's an original unit which is captured, we call the promoted

>> unit Phoenix *but* *only* *if* *the *original* *unit* *died* *before*

>> *the *promotion*.

>>

>> We haven't any term for the more 

general case of a non C-F promotee,

>> where the diagram is free of extraneous promoted units of that type.

>

>Gianni Donati named this a 'Prenix' in the GC proofgame tourney (1st HM, 

>Andrei Frolkin [and Kostas Prentos]).


It probably took Gianni about half a second to think of it, and imho it's 
the best so far. He was referring I think to the narrower case of promoted pawn where a corresponding original died *after* the promotion.

If one wants to refer to Phoenix+Prenix promotions, then maybe Nix is a logical term to use?

Look chaps: I am neither a leader, nor a diplomat. If someone can figure out how to get everyone to agree on terminology, my hat is off to them. You don't herd cats by getting them to cast votes, either. In the meantime, I am happy to use the terms Prenix & Nix, if only in conversations with myself or Gianni! :o)

All the best,
Andy.


----- Original Message ----
From: Joost de Heer <joost at sanguis.xs4all.nl>
To: andrew buchanan <andrew at anselan.com>; The Retrograde Analysis Mailing List <retros at janko.at>
Sent: Fri, February 26, 2010 2:48:09 PM
Subject: Re: [Retros] linguistic hole

On 01/17/2010 03:09 PM, andrew buchanan wrote:

> Dear Retrofriends,

>

> It seems to me there is a hole in our language for describing

> promotions.

>

> We like promotions, and we like to have diagrams which are free of

> non-thematic extraneous promoted units. So if there is a promotion,

> something may have to be captured at some point, to keep things

> looking nice.

>

> - If it's the promoted unit which is captured, we call it

> Ceriani-Frolkin and pat ourselves on the back.



> - If it's an original unit which is captured, we call the promoted

> unit Phoenix *but* *only* *if* *the *original* *unit* *died* *before*

> *the *promotion*.

>

> We haven't any term for the more general case of a non C-F promotee,

> where the diagram is free of extraneous promoted units of that type.


Gianni Donati named this a 'Prenix' in the GC proofgame tourney (1st HM, 
Andrei Frolkin).

Joost
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