[Retros] Castling in PG's

[CAILLAUDM at aol.com]

Dans un e-mail daté du 10/02/2005 16:35:13 Paris, Madrid,  
elkies at math.harvard.edu a écrit :

All of  which raises the question: what's the shortest (S)PG
in whose solution one  side castles and then plays both King
*and* Rook back to their initial  squares?  Is this
within the range of your program?  Apologies if  you've
already posted the answer and I've  forgotten...




Not sure this can be in the range of computer analysis before some  years...
 
The shortest in Winchloe database is 8.5 moves :
Francois Perruchaud, France-Echecs, 14.06.2004
rnb1kbnr/pp1ppp1p/2p5/1B4p1/8/4PPN1/qPPP2PP/R3K2R
SPG 8,5 (12+16) C+
 
MC
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