On Jun 20, 2005, at 6:14 PM, Glenn Parker wrote:

> It's not that simple.  It may be possible to capture the attacking  
> piece without moving the king.  If two pieces are attacking,  
> capturing one of the pieces may block the other piece's attack.

Double check rules out everything but moving the King, so that should  
be an easy enough special case to handle, if you can spot it to begin  
with.

James Edward Gray II