M Winther wrote on Wed, Jan 25, 2012 10:56 AM EST:
Flexible Chess is my new modest improvement of Fide-chess. The light pieces
are external. The introduction method used in Flexible Chess implies that
the light pieces are potentially present on empty squares on the first
rank. It makes the game more dynamic as the pieces move immediately when
they are introduced.
http://www.chessvariants.org/index/msdisplay.php?itemid=Mlflexiblechessf
/Mats