James Spratt wrote on Fri, Oct 13, 2006 08:06 PM UTC:
Hi, Smilemaker: Yes, it is permissible for a Pawn to promote to a second,
third (rare) or fourth (extremely rare) Queen upon reaching the
opponent's home row.
Aside, I remember a 5th-Grad math trick called 'casting out nines' which
I think was really trick, but can't remember exactly how it worked. Are
you familiar with it?