[Retros] total homebase mate - task

[raosorio at fibertel.com.ar]

Nicolas Dupont suggested the task of a mate position after the comie back of a piece
to it's homesquare.  This suggested to me the hard task of mate position where the 
mateing side is at homebase. I've produced the following example, 

rsbqkbsr/ppp2ppp/2P5/8/8/3PP1BK/P2PS1PP/RS1Q1B1R
24 single moves.	15 + 14   C+

1.Pc2-c4   Pe7-e5   2.Pc4-c5   Pe5-e4   3.Pc5-c6   Pe4-e3   
4.Pf2xe3   Bf8-a3   5.Ke1-f2   Ba3xb2   6.Kf2-g3   Bb2-a3   
7.Bc1-b2   Pd7-d5   8.Bb2-e5   Sb8-d7   9.Kg3-h3   Pd5-d4   
10.Be5-g3   Pd4-d3   11.Pe2xd3   Ba3-f8   12.Sg1-e2   Sd7-b8   

We should interpretate that this task requestes,
* All the  mateing side officers at homesquare
* All the mateing side  remaining pawns at homesquare 
* Mateing side maximum number of pawns on the board/minimum moves number

There are many mate alternatives. Each mate position would have an intrinsic record.
Is there any one feseable in less than 24 single moves?

A very attractive alternative form PGs point of view is to include a Pronkin, wich should
considered as as a separeted task.

Best,
Roberto Osorio