[Retros] Economy rules

[Bernd Gräfrath]

Hi Joost,

the position of Wilfried's problem is:

White: King f8, pawns b7, c7, e7, f7, g7. (6)

Black: King a5, Queen h3, Rooks d8, h8, Knight c8, pawn a2, Nightrider c1. (7)

Your question about economy reminds me of a discussion about a helpmate in the Problemist. If I remember correctly, the composer had used a black bishop and a black queen; but two black bishop on the same square colour would have been sufficient. A solver wrote that the composers should have freed himself about his inihibitation about promoted force. If this is right, it should even more hold for fairy problems. But still, I personally would prefer the fairy problem without promoted force. In the retro area, I might come to a different judgment...

Best wishes,

Bernd
*Von:* The Retrograde Analysis Mailing List <RETROS at JANKO.AT>
*Gesendet:* 08.12.07 09:37:59
*An:* The Retrograde Analysis Mailing List <RETROS at JANKO.AT>
*Betreff:* Re: [Retros] Economy rules


Hello,

Another question on economy: What's the 'rule of thumb' for promoted 
pieces? I composed a new fairy problem yesterday (again a task...), and 
have two versions: One with 10 black pieces, but with three black 
bishops, one with 11 black pieces, where one of the bishops was replaced 
by a rook and a pawn (both the bishop and the rook/pawn are 
cookstoppers, and not relevant for the theme).

Personally I don't mind the promoted piece, but I have a way to avoid 
it. Should I use that, or doesn't it matter?

And a question: does anyone have the position for the following composition?

W. Seehofer
The Problemist september 2005, #2417
ser-#5, Madrasi+Circe

Joost
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