[Retros] At-home initial array challenge

[CAILLAUDM at aol.com]

Very nice!
By the way, in 2004, Joaquim Iglesias proposed on France-Echecs a related  
puzzle that was found very hard to solve :
Compose an at-home proof game (more than 0.0 move!) where all 16  pawns are 
on the board.
Certainly Francois computer can confirm if Joaquim's assertion of  uniqueness 
was correct?
 
Best,
 Michel
 
Dans un e-mail daté du 20/03/2005 01:13:03 Paris, Madrid,  
flab at EECS.Berkeley.EDU a écrit :

Compose  an at-home proof game in 7.0 moves or less where either all the 
white  pieces or all the black pieces are on the board. In other words, an  
at-home PG in 7.0 moves or less that is (16+x) or (x+16), where x <  16.

According to my computer there is only one such proof  game.

Examples in 7.5 and 8.0 moves have been composed by Henrik Juel  and Andrew  
Buchanan:

http://www.janko.at/Retros/Danicum/N088.htm
http://www.janko.at/Retros/Problemesis/N37.htm

Francois




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