Code covered by the BSD License
by Wolfgang Garn
07 Nov 2009
(Updated 24 Jan 2012)
Play chess against "Greedy Edi".
has_moved whether the figure was moved once
answer = has_moved(from)
Whether the figure was moved once or whether there was any activity on that field.
This function is required to determine whether the castling is still possible.
Assume you like to do the castling. The the kings method 'possible' will call has_moved([8 8]).
Published with wg_publish; V1.0